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I had the LG V10 with Android 6 rooted and I upgraded it to Nougat by flashing the kdz version 30b with the already installed TWRP. For various reasons, I had to reinstall the stock version of the OS (30b), which removed TWRP from the phone. Now, I want to reinstall TWRP to root it again. Currently, I have the 30c version (updated from 30b with the false hope that the below problem would be fixed) with the bootloader unlocked. However, when I try to flash the TWRP image file (or any recovery images, even the stock recovery image), I always receive the following error:
Code:
fastboot flash recovery twrp-3.0.0-0-h901.img
target reported max download size of 536870912 bytes
sending 'recovery' (31748 KB)...
OKAY [ 1.194s]
writing 'recovery'...
FAILED (remote: unknown command)
finished. total time: 1.212s
I tried also to restore the rooted Android 6 KDZ (which did not gave me the above problems) using LGUP but it tells me that there is an "antirollback" problem because the version I want to install is older than the one I have. Then I tried to install the TWRP TOT file with LGUP but it gives me a communication error when it starts upgrading.
I think the solution would be to rollback to Android 6, install TWRP with fastboot working, then flash the rooted Nougat again. However, I cannot find how to rollback to an older Android version without TWRP and I cannot install TWRP with the current Android version. In practice, I am in a loop...
I don't know what else to do. Any help on how can I root my phone now?
@brok85
The simple fastboot commands for installing custom recovery were patched out sometime in the later MM firmwares. Since you lost root on Nougat, there currently is no option to get TWRP since there is no way to downgrade to any version of MM even with a modified LGUP.
If and when such a downgrade is possible you'd probably have to roll-back to 30b first instead of going to straight to MM.
chin'ah.girl said:
@brok85
The simple fastboot commands for installing custom recovery were patched out sometime in the later MM firmwares. Since you lost root on Nougat, there currently is no option to get TWRP since there is no way to downgrade to any version of MM even with a modified LGUP.
If and when such a downgrade is possible you'd probably have to roll-back to 30b first instead of going to straight to MM.
Click to expand...
Click to collapse
I have already rolled back to 30b. Antirollback check passes successfully as long as you want to flash the same Android version, e.g., Android 7...
Wouldn't it be possible to modify the 30b so that we can get those fastboot commands back? that would fix the problem without need to roll back to MM...
Unfortunately we can't modify fastboot commands at the ROM level because we have no way of flashing a modified ROM to the device that would allow the commands to go through. If we were it would be even more simple to flash a pre-rooted ROM through LGUP, but that has already been confirmed not to work as well.
So basically it's either downgrade or exploit a security flaw that allows root on the current ROM, and since no one is currently working on this device (at least to my knowledge) both of those are starting to look less and less likely.
brok85 said:
I have already rolled back to 30b. Antirollback check passes successfully as long as you want to flash the same Android version, e.g., Android 7...
Wouldn't it be possible to modify the 30b so that we can get those fastboot commands back? that would fix the problem without need to roll back to MM...
Click to expand...
Click to collapse
If your on 30b then the dirty cow exploit works, search this forum for it.
Sent from my LG-H901 using XDA Labs
skywalker-live said:
If your on 30b then the dirty cow exploit works, search this forum for it.
Sent from my LG-H901 using XDA Labs
Click to expand...
Click to collapse
Thanks for the suggestion! Would you please link a reference for dirty cow? I found something in the forum but I also read that someone bricked their devices, so it would be better to have the correct procedure.
That information is incorrect, unfortunately. Dirty Cow was patched out in January 2017, the 30b ROM is on May 2017 security patch. I even tried to do it myself and the "adb logcat -s recowvery" command no longer works, hence the reason why we need to downgrade to v20l for the exploit.
chin'ah.girl said:
That information is incorrect, unfortunately. Dirty Cow was patched out in January 2017, the 30b ROM is on May 2017 security patch. I even tried to do it myself and the "adb logcat -s recowvery" command no longer works, hence the reason why we need to downgrade to v20l for the exploit.
Click to expand...
Click to collapse
Except for the fact that 30b increased the anti rollback and we can't go back to 20l.
Sent from my LG-H901 using XDA Labs
@skywalker-live
I'm not entirely certain that's the problem. Any time you flash a ROM with a lower anti-rollback count usually results in a hard brick/9008 mode, not a soft brick. The few times I was able to successfully flash the device that was what happened and the phone was easily recovered from a soft brick with LGUP or LG Bridge. That is unless LG developed away for the bootloader to not be so stringent for easier recovery and less phones needing to be sent back to the factory. Also I believe the G5 was able to downgrade between MM and N.
Either way for us users who intentionally/unintentionally upgraded and lost root we don't have any options at the moment.
@chin'ah.girl. That is the whole point of anti roll back, to prevent going backwards, in this case it closes the last exploit used for rooting. This phone started with full fastboot capability on android 5.1.1. (yay we did everything like normal dev phones) Then with 6.0 LG removed fastboot flashing commands (unlocked bootloader that can't do anything), the dirty cow exploit gave us temp root to install twrp. There were 3 updates for the h901 in 6.0. The first 2 were ARB 0, the 3rd ("security" update) increased ARB to 1. Then 7.0 came and ARB increased to 2, because LG patched dirty cow. In a way ARB is designed to brick your phone if you force it, sure our phones are recoverable but only with the same version you started with. On newer LGs (v20? and newer) it just warns you and won't let you downgrade. I've looked back at all the posts from when 7.0 (30b) was released and anyone on unrooted, untwrped software has been stuck there. The only way to have root/ twrp on 30b is to have flashed a safely created stock rom in twrp. Even the best devs for this phone are stuck on 30b. I'm even looking at different brands unless someone can root the latest LG firmwares ( I would like a v20 but all my local stores only have the latest firmwares in stock).
Sent from my LG-H901 using XDA Labs
Well I guess having a soft brick with anti-rollback is better than having 9008 (I know it's also possible to recover from this mode but much more work is involved). I definitely know that currently no one has made progress because I'm one of the people in those threads. Haha!
So I guess that leaves us with hoping someone finds an exploit in current firmware...or buying a new phone like you suggested.
OOOHHHHH NO.. i just got my v10 today hoping to root and all but it's in 30c already.. and from what i have been reading in this thread... sounds like i'm doomed.. i have never used a phone without root...... unlucky me... my love for v10 got me in trouble........
skywalker-live said:
@chin'ah.girl. That is the whole point of anti roll back, to prevent going backwards, in this case it closes the last exploit used for rooting. This phone started with full fastboot capability on android 5.1.1. (yay we did everything like normal dev phones) Then with 6.0 LG removed fastboot flashing commands (unlocked bootloader that can't do anything), the dirty cow exploit gave us temp root to install twrp. There were 3 updates for the h901 in 6.0. The first 2 were ARB 0, the 3rd ("security" update) increased ARB to 1. Then 7.0 came and ARB increased to 2, because LG patched dirty cow. In a way ARB is designed to brick your phone if you force it, sure our phones are recoverable but only with the same version you started with. On newer LGs (v20? and newer) it just warns you and won't let you downgrade. I've looked back at all the posts from when 7.0 (30b) was released and anyone on unrooted, untwrped software has been stuck there. The only way to have root/ twrp on 30b is to have flashed a safely created stock rom in twrp. Even the best devs for this phone are stuck on 30b. I'm even looking at different brands unless someone can root the latest LG firmwares ( I would like a v20 but all my local stores only have the latest firmwares in stock).
Sent from my LG-H901 using XDA Labs
Click to expand...
Click to collapse
What is the difference between a rooted .kdz and a rooted .img?
We can flash a .kdz with LGUP so we would not need the TWRP in the first place. Why is not possible to build a rooted version of the 30b and generate a .kdz to flash with LGUP?
It is probably a stupid question but I am kind of ignorant in this matter...sorry for any blasphemy I may have involuntarily said above
brok85 said:
What is the difference between a rooted .kdz and a rooted .img?
We can flash a .kdz with LGUP so we would not need the TWRP in the first place. Why is not possible to build a rooted version of the 30b and generate a .kdz to flash with LGUP?
It is probably a stupid question but I am kind of ignorant in this matter...sorry for any blasphemy I may have involuntarily said above
Click to expand...
Click to collapse
Unfortunately those that are working to patch lgup to flash rooted .kdz's are still unsuccessful. But that has been everyone's hope for quite a while. Injecting root into a .kdz changes its signature, and then lgup fails to flash it.
Sent from my LG-H901 using XDA Labs
@chin'ah.girl if @ PlayfulGod is working on this let me know. I helped back in the day getting the lg flex running twrp. Yall might want to look into flashing a modified bootloader from a phone that is equal. Like we used the G2 aboot to bypass lgup errors it and got loki working. But then lg wouldnt not rls the source so we could get a stable kernel. But we did end up having twrp and root. . Check the aboot file. I will see if @djrbliss or maybe @Dees_Troy will jump in here and see what happens. idk how close the aboot is to the v20 or sense there was a working aboot for this phone you might be able to force a older aboot. it might softbrick but then you should be able to use fastboot cmds. hope this helps. Inbox me if you need. If I can find the old aboot file that worked I will play around with it
Gotroot said:
@chin'ah.girl if @ PlayfulGod is working on this let me know. I helped back in the day getting the lg flex running twrp. Yall might want to look into flashing a modified bootloader from a phone that is equal. Like we used the G2 aboot to bypass lgup errors it and got loki working. But then lg wouldnt not rls the source so we could get a stable kernel. But we did end up having twrp and root. . Check the aboot file. I will see if @djrbliss or maybe @Dees_Troy will jump in here and see what happens. idk how close the aboot is to the v20 or sense there was a working aboot for this phone you might be able to force a older aboot. it might softbrick but then you should be able to use fastboot cmds. hope this helps. Inbox me if you need. If I can find the old aboot file that worked I will play around with it
Click to expand...
Click to collapse
As far as I know no one is working on this as it seems most devs have given up and have moved onto the v20, or if they are working on it they haven't said so in the forums that I've seen. With that in mind help from anyone would be greatly appreciated, even if it is a long shot!
The aboot from the v20 might work.. It just need to be edited. I have played around with downgrading. Idk why lg seems to do this with certain models. The flex was a beast of a phone still is. But they wouldnt rls the scource kernel. Lg said they did but it wouldnt compile it was missing all kinds of drivers. Lg has lost all my respect
Any hope on rooting stock Nougat now? My V10 bootlooped and I sent it into LG and of course they flashed stock Nougat recovery so my TWRP is gone.
xxcmb3k3xx said:
Any hope on rooting stock Nougat now? My V10 bootlooped and I sent it into LG and of course they flashed stock Nougat recovery so my TWRP is gone.
Click to expand...
Click to collapse
Welcome to the train bro,..... None for now...
skywalker-live said:
@chin'ah.girl. That is the whole point of anti roll back, to prevent going backwards, in this case it closes the last exploit used for rooting. This phone started with full fastboot capability on android 5.1.1. (yay we did everything like normal dev phones) Then with 6.0 LG removed fastboot flashing commands (unlocked bootloader that can't do anything), the dirty cow exploit gave us temp root to install twrp. There were 3 updates for the h901 in 6.0. The first 2 were ARB 0, the 3rd ("security" update) increased ARB to 1. Then 7.0 came and ARB increased to 2, because LG patched dirty cow. In a way ARB is designed to brick your phone if you force it, sure our phones are recoverable but only with the same version you started with. On newer LGs (v20? and newer) it just warns you and won't let you downgrade. I've looked back at all the posts from when 7.0 (30b) was released and anyone on unrooted, untwrped software has been stuck there. The only way to have root/ twrp on 30b is to have flashed a safely created stock rom in twrp. Even the best devs for this phone are stuck on 30b. I'm even looking at different brands unless someone can root the latest LG firmwares ( I would like a v20 but all my local stores only have the latest firmwares in stock).
Click to expand...
Click to collapse
Among the marshmallows for H901, I have seen 20e, 20j and 20l here. And I have myself seen that 20e is on ARBv1 while 20j and 20l are on ARBv2 just like 30b and 30c. So 30b and 30c must be downgradable to 20j or 20l via LGUP due to having the same ARB version i.e. 2.
You can yourself verify the ARB versions by extracting the KDZ, then DZ and then searching for SW_ID in either ABOOT or SBL1 partition images. They both contain the same string whose 8th-last digit shows the ARB version of that KDZ.
I have tried flashing 20j and 20l on my h901 30b via LGUP. All checks pass as well as many partitions including modem, boot, laf, factory, recovery, aboot etc. are flashed but on 23% while flashing system partition the 0x2000 Invalid Command Response is shown by LGUP. Can anyone please try this downgrade and let me know what they get?
Would it be due to the reason that I am flashing H901BK files over H901?
Hi everyone,
A couple months ago I switched over to T-Mobile. I bought my V30 from AT&T and got it unlocked after switching to T-Mobile.
Apparently Android Oreo 8.0 is rolling out to AT&T V30s but when I check for updates no updates are available. Is there any way I can get my phone to update now that I'm on T-Mobile?
Thanks
SuhasTheBest said:
Hi everyone,
A couple months ago I switched over to T-Mobile. I bought my V30 from AT&T and got it unlocked after switching to T-Mobile.
Apparently Android Oreo 8.0 is rolling out to AT&T V30s but when I check for updates no updates are available. Is there any way I can get my phone to update now that I'm on T-Mobile?
Thanks
Click to expand...
Click to collapse
If you can get your hands on an active att sim card, or from one of its MVNOs. That is how I updated my lg gpad. I put an h2o sim card and the next day the nougat update was already loaded. Other than that all I can think of is flashing the firmware.
poncespr said:
If you can get your hands on an active att sim card, or from one of its MVNOs. That is how I updated my lg gpad. I put an h2o sim card and the next day the nougat update was already loaded. Other than that all I can think of is flashing the firmware.
Click to expand...
Click to collapse
Thanks! I'll try my friend's ATT sim later today.
poncespr said:
If you can get your hands on an active att sim card, or from one of its MVNOs. That is how I updated my lg gpad. I put an h2o sim card and the next day the nougat update was already loaded. Other than that all I can think of is flashing the firmware.
Click to expand...
Click to collapse
Thanks! I'll try my friend's ATT sim later today.
I had an AT&T sim in my LG-H931 (that is unlocked and has been running on T-Mo since I got it) for about an hour on Saturday with no luck. For what it is worth, I am still on the September security patch, so at the very least I would have expected to see an update to that right away.
I may be unhappily stuck on 7.1.2 unless someone else figures out a trick.
SuhasTheBest said:
Thanks! I'll try my friend's ATT sim later today.
Click to expand...
Click to collapse
Any luck?
I'm in the same boat, a firmware file that we could flash though bridge would probably fix it, but I haven't found any firmware files for the H931 Oreo anywhere =/
Update?
Any update with this? I am on the same boat. I bought unlocked V30 from attached and use it with MetroPCS..
I bought ATT prepaid card hoping that it will prompt the update with no luck so far.
Considering flashing but like previous poster said , I could not find update file for H931 ATT oreo.
Switching from Apple btw and I wish I did it a long time ago, love it!
Jkho89 said:
Any update with this? I am on the same boat. I bought unlocked V30 from attached and use it with MetroPCS..
I bought ATT prepaid card hoping that it will prompt the update with no luck so far.
Considering flashing but like previous poster said , I could not find update file for H931 ATT oreo.
Switching from Apple btw and I wish I did it a long time ago, love it!
Click to expand...
Click to collapse
There's long been an "update" with this. You convert the H931 to open market US998 and flash the latest KDZ. See the Frankenstein thread. I post latest US998 KDZ whenever they are released.
https://forum.xda-developers.com/lg-v30/how-to/using-lgup-crossflashing-t3780969
AT&T, along with Sprint, won't release KDZ and won't give updates to non-customers. So, best to convert phone to variant that receives public KDZ.
ChazzMatt said:
There's long been an "update" with this. You convert the H931 to open market US998 and flash the latest KDZ. See the Frankenstein thread. I post latest US998 KDZ whenever they are released.
https://forum.xda-developers.com/lg-v30/how-to/using-lgup-crossflashing-t3780969
AT&T, along with Sprint, won't release KDZ and won't give updates to non-customers. So, best to convert phone to variant that receives public KDZ.
Click to expand...
Click to collapse
Oh wow, that made total sense. Thank you for guiding me to the right post, I am really new with this.
ChazzMatt said:
There's long been an "update" with this. You convert the H931 to open market US998 and flash the latest KDZ. See the Frankenstein thread. I post latest US998 KDZ whenever they are released.
https://forum.xda-developers.com/lg-v30/how-to/using-lgup-crossflashing-t3780969
AT&T, along with Sprint, won't release KDZ and won't give updates to non-customers. So, best to convert phone to variant that receives public KDZ.
Click to expand...
Click to collapse
Sorry Chaz, I hope it is okay for me to post it here. I noticed your name on most LG V30 posts and I know you are probably the best person to ask. First of all I wanted to thank you for providing the instruction for the flashing. I really thought I bricked my phone for a couple times. Here is what I did:
1. Wrongfully ran the flashing not in donwload mode - was not able to turn on the phone.
2. Panicked, followed instruction to master reset.
3. I went back to download mode, Flash US998 Nougat.
4. For some reason it could not go pass the setup (keep restarting).
5. Went to Download Mode - Flash Upgrade to Oreo US988. Stable.
6. I think I was successful as I was able to restore my data and the phone works.
One question..probably a stupid one as I am new android user, but I noticed the User Interface is really different , I believe this is what they referred as a "stock" Oreo? It is useable but the UI is really basic. See the attached link:
[url]https://photos.app.goo.gl/h3eeBdoGTtHRM6Y4A[/URL]
[url]https://photos.app.goo.gl/S1PiJQR3XcYn9cZe7[/URL]
Does this mean I just had my Bootloader unlocked and the phone is now ready to flash different variants with LG UP "update" selection?
I am currently using Metro PCS and was wondering of I can flash Tmobile variant to my phone, not sure if flashing Verizon (CDMA) will cause problem for the network.
Greatly appreciate all suggestions or advice
Jkho89 said:
Sorry Chaz, I hope it is okay for me to post it here. I noticed your name on most LG V30 posts and I know you are probably the best person to ask. First of all I wanted to thank you for providing the instruction for the flashing. I really thought I bricked my phone for a couple times. Here is what I did:
1. Wrongfully ran the flashing not in donwload mode - was not able to turn on the phone.
2. Panicked, followed instruction to master reset.
3. I went back to download mode, Flash US998 Nougat.
4. For some reason it could not go pass the setup (keep restarting).
5. Went to Download Mode - Flash Upgrade to Oreo US988. Stable.
6. I think I was successful as I was able to restore my data and the phone works.
One question..probably a stupid one as I am new android user, but I noticed the User Interface is really different , I believe this is what they referred as a "stock" Oreo? It is useable but the UI is really basic. See the attached link:
https://photos.app.goo.gl/h3eeBdoGTtHRM6Y4A
https://photos.app.goo.gl/S1PiJQR3XcYn9cZe7
Does this mean I just had my Bootloader unlocked and the phone is now ready to flash different variants with LG UP "update" selection?
I am currently using Metro PCS and was wondering of I can flash Tmobile variant to my phone, not sure if flashing Verizon (CDMA) will cause problem for the network.
Greatly appreciate all suggestions or advice
Click to expand...
Click to collapse
You're welcome! You've now successfully Frankensteined your phone to open market US998. Let me try to answer your questions...
As you admitted in step 1, you didn't follow the instructions. But also in step 4 you didn't... Luckily you survived it! Especially in step 4 -- between US998 Nougat and US998 Oreo -- is when you really needed to Master Reset, as that Nougat flash is necessary but very unstable. After Master Reset, then that Nougat is stable and you can continue to flash Oreo.
No, your bootloader is not unlocked, but you are carrier unlocked/SIM card unlocked to use this phone on different carriers.
I'm not sure if you are confusing terminology and are really asking about bootloader unlock? (which is necessary for root) You flashed US998 Oreo 20D, which has the bootloader lock security patch. If you want to unlock bootloader, you would need to temporarily downgrade to Oreo 20A or 20B first and run the instructions in the WTF thread... You could root, then update back to newest firmware after bootloader unlock. I'm only mentioning this because you asked about bootloader unlock.
Right now, you now have the open market, carrier unlocked US998 variant -- the one designed to run on all North American carriers. It will run on T-Mobile/MetroPCS quite fine. Lots of T-Mobile users have US998 on T-Mobile. Not only is there no need to flash T-Mobile variant KDZ, but since T-Mobile KDZ has different RSA encryption than all the other North America V30 variants, you'll definitely brick your phone if you try.
You can use "update" for US998 for future updates or you can use simple "upgrade" with full KDZ in the dev patched LGUP when future US998 KDZ are released. Simple "upgrade" in dev patched LGUP does not wipe your data. You had to wipe your data THIS time because you were converting to another model. Now that you are on US998, you can stay there. In the future you can just use "upgrade" for KDZ if you do not receive update prompts. I prefer flashing full image KDZ myself instead of partial image OTA.
The plain look is just the layout and theme choices you've made. (Go into Settings and search for Home and also Theme. ) Plus there's no carrier bloatware on US998. Also Oreo looks a little different, if you're just upgrading from Nougat.
For myself, I use Nova launcher with an icon theme pack to change the look. It has lots of different choices. I prefer a separate app drawer, and I prefer my app drawer have a black background to clearly differentiate it from my desktop. I like the Nova "cube" transition to go to my different desktop screens.
ChazzMatt said:
You're welcome! You've now successfully Frankensteined your phone to open market US998. Let me try to answer your questions...
As you admitted in step 1, you didn't follow the instructions. But also in step 4 you didn't... Luckily you survived it! Especially in step 4 -- between US998 Nougat and US998 Oreo -- is when you really needed to Master Reset, as that Nougat flash is necessary but very unstable. After Master Reset, then that Nougat is stable and you can continue to flash Oreo.
No, your bootloader is not unlocked, but you are carrier unlocked/SIM card unlocked to use this phone on different carriers.
I'm not sure if you are confusing terminology and are really asking about bootloader unlock? (which is necessary for root) You flashed US998 Oreo 20D, which has the bootloader lock security patch. If you want to unlock bootloader, you would need to temporarily downgrade to Oreo 20A or 20B first and run the instructions in the WTF thread... You could root, then update back to newest firmware after bootloader unlock. I'm only mentioning this because you asked about bootloader unlock.
Right now, you now have the open market, carrier unlocked US998 variant -- the one designed to run on all North American carriers. It will run on T-Mobile/MetroPCS quite fine. Lots of T-Mobile users have US998 on T-Mobile. Not only is there no need to flash T-Mobile variant KDZ, but since T-Mobile KDZ has different RSA encryption than all the other North America V30 variants, you'll definitely brick your phone if you try.
You can use "update" for US998 for future updates or you can use simple "upgrade" with full KDZ in the dev patched LGUP when future US998 KDZ are released. Simple "upgrade" in dev patched LGUP does not wipe your data. You had to wipe your data THIS time because you were converting to another model. Now that you are on US998, you can stay there. In the future you can just use "upgrade" for KDZ if you do not receive update prompts. I prefer flashing full image KDZ myself instead of partial image OTA.
The plain look is just the layout and theme choices you've made. (Go into Settings and search for Home and also Theme. ) Plus there's no carrier bloatware on US998. Also Oreo looks a little different, if you're just upgrading from Nougat.
For myself, I use Nova launcher with an icon theme pack to change the look. It has lots of different choices. I prefer a separate app drawer, and I prefer my app drawer have a black background to clearly differentiate it from my desktop. I like the Nova "cube" transition to go to my different desktop screens.
Click to expand...
Click to collapse
Appreciate the answers, Chazz.
Ok, I believed I did not do master reset from H931 to US998 Nougat but I did master reset from US998 Nougat to US998 Oreo. Now that you mentioned it, that was probably the reason why I succeeded.
Yes I am pretty sure I mixed up terms as I am probably not 100% with the terminologies, my apologies. Thanks for the warning, will definitely not flash T-Mobile variant.
Good to know that from now on I just have to do upgrade through dev patched LG UP to update US998 kdz.
I think the reason I thought the step was not complete was because in the UI, I was not able to move any app shorcut (and widget) on my screen. It is also not arrangeable. Also when I go to App and touch-hold the app icon, there is no option delete it. Is this normal? I went to try different themes and it did not fix the problem. I youtubed LGV30 Oreo and it looks really different from my current phone.
Couple of screenshots:
Last Page of the main screen, I had to click the "+" sign to add apps. and the app is not move-able.
https://photos.app.goo.gl/BgcRPCrdsaEDx4uX8
Swipe left from the main screen:
https://photos.app.goo.gl/BtMEkyrvv5vfrpQi8
Will Nova Launcher fix this?
Thanks Chazz.
Jkho89 said:
Appreciate the answers, Chazz.
Ok, I believed I did not do master reset from H931 to US998 Nougat but I did master reset from US998 Nougat to US998 Oreo. Now that you mentioned it, that was probably the reason why I succeeded.
Yes I am pretty sure I mixed up terms as I am probably not 100% with the terminologies, my apologies. Thanks for the warning, will definitely not flash T-Mobile variant.
Good to know that from now on I just have to do upgrade through dev patched LG UP to update US998 kdz.
I think the reason I thought the step was not complete was because in the UI, I was not able to move any app shorcut (and widget) on my screen. It is also not arrangeable. Also when I go to App and touch-hold the app icon, there is no option delete it. Is this normal? I went to try different themes and it did not fix the problem. I youtubed LGV30 Oreo and it looks really different from my current phone.
Couple of screenshots:
Last Page of the main screen, I had to click the "+" sign to add apps. and the app is not move-able.
https://photos.app.goo.gl/BgcRPCrdsaEDx4uX8
Swipe left from the main screen:
https://photos.app.goo.gl/BtMEkyrvv5vfrpQi8
Will Nova Launcher fix this?
Thanks Chazz.
Click to expand...
Click to collapse
Try Nova launcher.
If that doesn't fix the problem, do a Master Reset and then use dev patched LGUP and DL PARTITION (choose all partitions) the US998 Oreo KDZ over your phone. You may want to do that anyways...
ChazzMatt said:
Try Nova launcher.
If that doesn't fix the problem, do a Master Reset and then use dev patched LGUP and DL PARTITION (choose all partitions) the US998 Oreo KDZ over your phone. You may want to do that anyways...
Click to expand...
Click to collapse
Wow, a simple Master Reset fixed this issue! Thanks, you are the best man.
Jkho89 said:
Thanks, you are the best man.
Click to expand...
Click to collapse
Seconded!
ETA: I think your LG launcher had the "simple mode" option (or whatever it is called) turned on. I am using Nova too, so I am not positive where that setting is.
jaysus145 said:
Seconded!
ETA: I think your LG launcher had the "simple mode" option (or whatever it is called) turned on. I am using Nova too, so I am not positive where that setting is.
Click to expand...
Click to collapse
I am quite happy with the UI as is. I am just glad that I was able to get out of that "simple mode" UI.
The UI looks awesome now!
https://photos.app.goo.gl/k5yCxcVmWJvw9NrN8
Anyone else get a notification for an Android system update today? I just received one and haven't clicked it yet...
Added screenshot. Appears to be a security update.
I was under the impression that since my phone is rooted and Bootloader unlocked that I wouldn't receive security updates through play services. Apparently I was incorrect though.
Anyone know if this is safe to install or more specifically if installing it will effect my root status? I've switched back to the LS998 w. 21a update currently.
I installed the security update and all seems ok. I'm not rooted, so there's that also.
JonnyTrulove said:
Added screenshot. Appears to be a security update.
I was under the impression that since my phone is rooted and Bootloader unlocked that I wouldn't receive security updates through play services. Apparently I was incorrect though.
Anyone know if this is safe to install or more specifically if installing it will effect my root status? I've switched back to the LS998 w. 21a update currently.
Click to expand...
Click to collapse
You can't install an update without factory recovery.
Yeah I got the notification today too. I wonder if anyones working on repacking the update so it can be flashed in TWRP on unlocked rooted devices.
Side note, is there any way right now to unroot and put stock recovery on to get the update then reflash TWRP and re-root or would you lose the update in the process?
txag2011 said:
Yeah I got the notification today too. I wonder if anyones working on repacking the update so it can be flashed in TWRP on unlocked rooted devices.
Side note, is there any way right now to unroot and put stock recovery on to get the update then reflash TWRP and re-root or would you lose the update in the process?
Click to expand...
Click to collapse
IIRC for this, one needs a KDZ. Since Sprint does updates via FOTA, KDZs don't get released.
Updating requires someone to repack the update. Or flash the US998 KDZ, flash modems, edit APNs.
Last week I flashed my girl phone to sprint21a and forgot to root(flash Magisk)so she update her phone sometime in the last week and today when I tried to play around on her phone it was a no go
No more fastboot even though phone says it's bootloader unlocked .. I'm open to any suggestions .. going to try a few things tomorrow (Don't really care to much cause it's not my phone)
SO YEAH DON'T UPDATE LOL
pjsnyc said:
I installed the security update and all seems ok. I'm not rooted, so there's that also.
Click to expand...
Click to collapse
Can you post a screenshot of what your software version is now after taking the update?
elijah420 said:
IIRC for this, one needs a KDZ. Since Sprint does updates via FOTA, KDZs don't get released.
Updating requires someone to repack the update. Or flash the US998 KDZ, flash modems, edit APNs.
Click to expand...
Click to collapse
Saw your other reply in the US to LS thread. Oddly enough something weird went down when I was doing that and I flashed the LS version back along with root to get my LTE back, yet my software version still shows up as US. I dunno if that guide just flashed the modems back leaving the software version or if it should have changed the software version back to LS, but I've got a running phone with root and sprint APNs + LTE so I'm happy with it even if the software versions messed up.
Haven't seen any new US998 KDZ files though on xda (or google for that matter). Guess I'll have to wait and see if someone releases a new file that goes past the 99821a that I currently have, as thats the only one that appears to be available right now on here.
txag2011 said:
Haven't seen any new US998 KDZ files though on xda (or google for that matter). Guess I'll have to wait and see if someone releases a new file that goes past the 99821a that I currently have, as thats the only one that appears to be available right now on here.
Click to expand...
Click to collapse
Then you haven't looked at all.
We have US998 20D posted here in Development section as both full image KDZ as well as TWRP flashable zipped file.
And 20B before that, as both full image KDZ and TWRP flashable zipped file.
The threads are very active.
ChazzMatt said:
You haven't looked.
We have US998 20D posted here as KDZ and as well as TWRP flashable zipped file.
And 21B before that.
The threads are very active.
Click to expand...
Click to collapse
20d is the most recent? I did see that earlier (on google, but not here oddly enough) but I had figured that 20d came before 21a. My mistake.
edit: I found this post here. is this the correct file needed?
https://forum.xda-developers.com/lg-v30/development/rom-lg-us998-20d-rom-t3830318
txag2011 said:
20d is the most recent? I did see that earlier (on google, but not here oddly enough) but I had figured that 20d came before 21a. My mistake.
Click to expand...
Click to collapse
Typo. While 20D is the most recent, 20B was prior, and 20A before that, for US998. 20A is the first (oldest) US998 Oreo KDZ.
ChazzMatt said:
Typo. While 20D is the most recent, 20B was prior, and 20A before that, for US998. 20A is the first (oldest) US998 Oreo KDZ.
Click to expand...
Click to collapse
This is a bit odd then.. I'm on sprint.. The version I have is US99821a according to the software info page. I had followed JWnSC's thread for restoring LTE bands for sprint. I had the US998 software from your guide installed before flashing over his version. I had assumed that would set the version back to LS99821a but evidently I was wrong. Where exactly would 21a fit into this update timeline?
Assuming 20d is the most recent in this case, would the xda link I posted in my previous reply be the correct one to flash over? And if so, would that mean that JWnSC's files for restoring the LTE bands wouldn't work? I apologize if these questions seem dumb, I'm just trying to wrap my head around all of this.
txag2011 said:
This is a bit odd then.. I'm on sprint.. The version I have is US99821a according to the software info page. I had followed JWnSC's thread for restoring LTE bands for sprint. I had the US998 software from your guide installed before flashing over his version. I had assumed that would set the version back to LS99821a but evidently I was wrong. Where exactly would 21a fit into this update timeline?
Assuming 20d is the most recent in this case, would the xda link I posted in my previous reply be the correct one to flash over? And if so, would that mean that JWnSC's files for restoring the LTE bands wouldn't work? I apologize if these questions seem dumb, I'm just trying to wrap my head around all of this.
Click to expand...
Click to collapse
There is a European H930 21A, but I'm not aware of US998 21A. There may be an LS998 21A, but I don't keep up with Sprint firmware versions...
Go to Settings, About Phone, Software Info, Software version. Tell me what you see?
ChazzMatt said:
There is a European H930 21A, but I'm not aware of US998 21A. There may be an LS998 21A, but I don't keep up with Sprint firmware versions...
Go to Settings, About Phone, Software Info, Software version. Tell me what you see?
Click to expand...
Click to collapse
US99821a. I had assumed JWnSC's guide was going to revert this back to LS but it doesn't appear to have done so, but I have my LTE network restored. I've attached a screenshot of it. For what it's worth the phone's model number shows up as LS998 under the hardware info.
txag2011 said:
US99821a. I had assumed JWnSC's guide was going to revert this back to LS but it doesn't appear to have done so, but I have my LTE network restored. I've attached a screenshot of it. For what it's worth the phone's model number shows up as LS998 under the hardware info.
Click to expand...
Click to collapse
Then there is something really messed up. There's no US998 21A with May 2018 security update. That matches US998 20B.
Sent via open market LG US998 V30/V30+
ChazzMatt said:
Then there is something really messed up. There's no US998 21A with May 2018 security update. That matches US998 20B.
Sent via open market LG US998 V30/V30+
Click to expand...
Click to collapse
I'm wondering if something got mislabeled in JWnSC's file then... The file I had flashed to restore LTE and sprint APN's was the sprint 21a (May security patch) linked in his main post on this thread:
https://forum.xda-developers.com/lg-v30/how-to/us998-to-ls998-sprint-lte-root-t3802310
I did notice the first time around I was rooting the phone I flashed the sprint 20b image first off, then when I got a notification there was an update available someone else told me to use the 21a zip which was right below the 20b. While I was running 20b both the model and software showed LS after flashing it. Is it possible this is merely a typo somewhere within the 21a zip file?
In any case, should I avoid using the 20d files I found posted by you and westwood24 and then trying to flash the modem bin for sprint LTE over?
The entire reason I brought this up is because I've been getting notifications that theres an update available now for the system. Since I'm rooted and TWRP'd and don't want to lose either of those I figured the only way I could get it was to come back here and find the update file and flash it.
EDIT: after doing some more reading on the sprint specific update that occurred at the same time as the update OP was mentioning, it turns out this update is named LS99822a. As far as I can tell, theres no KDZ or zip files for this specific update on xda, or anywhere else for that matter. So I guess I won't be touching this 20d update or flashing this 22a one whatsoever.
Source:
https://www.androidinfotech.com/2018/08/lg-v30-sprint-usa-ls998-august-2018-ota.html
ChazzMatt said:
Then there is something really messed up. There's no US998 21A with May 2018 security update. That matches US998 20B.
Sent via open market LG US998 V30/V30+
Click to expand...
Click to collapse
It's normal maybe a type-o somewhere or result of flashing us988kdz
@txag2011
You can flash latest us998 and then flash modem and it will be fine the only thing is that sprint visual voicemail won't work right out the bag and sprint calling plus you won't be able to upgrade prl or profile that the only difference I see but you may or may not use other sprint stuff
If you want to run Sprint's latest and you don't need root you can always update
Last week I updated to Sprint's ls99822a as you can see on my screen shots(last page) Lost root and fastboot commands but bootloader stayed unlooked and I was able to downgrade back @ChazzMatt
When I downgrade I saw lgup checking for antirollback and it was all good
That was on sprint latest software security patch August 1
ricohz said:
It's normal maybe a type-o somewhere or result of flashing us988kdz
@txag2011
You can flash latest us998 and then flash modem and it will be fine the only thing is that sprint visual voicemail won't work right out the bag and sprint calling plus you won't be able to upgrade prl or profile that the only difference I see but you may or may not use other sprint stuff
If you want to run Sprint's latest and you don't need root you can always update
Last week I updated to Sprint's ls99822a as you can see on my screen shots(last page) Lost root and fastboot commands but bootloader stayed unlooked and I was able to downgrade back @ChazzMatt
When I downgrade I saw lgup checking for antirollback and it was all good
That was on sprint latest software security patch August 1
Click to expand...
Click to collapse
So aside for the sprint LTE bands and calling plus, theres zero difference between US99820d and LS99822a? If thats the case I might give that a shot. Still havent heard any confirmation if the forum post I linked to a few posts back was the correct update (it's from westwood24, titled US99820D(TWRP).zip) In addition to that I'm not sure how exactly I'd go about obtaining the modem file let alone flashing it. Is it particularly difficult?
What did you end up doing with yours once you downgraded away fro m22a? Did you end up trying to flash US20d over and patching the modem yourself or are you just staying with the 21a built JWnSC did?
txag2011 said:
So aside for the sprint LTE bands and calling plus, theres zero difference between US99820d and LS99822a? If thats the case I might give that a shot. Still havent heard any confirmation if the forum post I linked to a few posts back was the correct update (it's from westwood24, titled US99820D(TWRP).zip) In addition to that I'm not sure how exactly I'd go about obtaining the modem file let alone flashing it. Is it particularly difficult?
What did you end up doing with yours once you downgraded away fro m22a? Did you end up trying to flash US20d over and patching the modem yourself or are you just staying with the 21a built JWnSC did?
Click to expand...
Click to collapse
both and more ...
currently I have 4 nandriods backups I f__k around with ( US998d,Sprint 21a, AIS and Dotos )I also like trying out all aosp roms
Which os I run depends where I'm working at if I'm out where service is bad I use sprints for the calling plus feature other then that it depends on what mood I am
(Visual voicemail dosen't matter much to me if I got a lost call I can always check voicemail manualy)
I lguped us99820a then dirty flashed us99820d
ricohz said:
both and more ...
currently I have 4 nandriods backups I f__k around with ( US998d,Sprint 21a, AIS and Dotos )I also like trying out all aosp roms
Which os I run depends where I'm working at if I'm out where service is bad I use sprints for the calling plus feature other then that it depends on what mood I am
(Visual voicemail dosen't matter much to me if I got a lost call I can always check voicemail manualy)
I lguped us99820a then dirty flashed us99820d
Click to expand...
Click to collapse
Thats an impressive setup you have there. You must be pretty damn adept at this kind of thing.
So you just used LGup to put on chazzmatt's zip using the partition DL function and then... I'm sorry, still new to this, what exactly is dirty flashing? Is that flashing the 20d zip file under TWRP or also in lgup? and afterwards you flashed the sprint modem?
Hi, i want to downgrade my phone to Oreo from US998 Pie but my phone is not recognized by the dev patched Lg Up...
It said "There is no Handset connected. Please, connect a handset" when i plug my phone in download mode...
Can someone help me pls ?
Pluginbaby00 said:
Hi, i want to downgrade my phone to Oreo from US998 Pie but my phone is not recognized by the dev patched Lg Up...
It said "There is no Handset connected. Please, connect a handset" when i plug my phone in download mode...
Can someone help me pls ?
Click to expand...
Click to collapse
Make sure you are using the Dev Patched LGUP from the Pie KDZ threads. Uninstall any prior version. Read the Troubleshooting Tips in the Pie KDZ threads just below the Dev Patched LGUP installation instructions.
I fixed my problem by flashing US998_20E and it fixed my download mode which appeared to be the problem
Thank you
ChazzMatt said:
Make sure you are using the Dev Patched LGUP from the Pie KDZ threads. Uninstall any prior version. Read the Troubleshooting Tips in the Pie KDZ threads just below the Dev Patched LGUP installation instructions.
Click to expand...
Click to collapse
Hmm no link??? I have the same issue, it all worked and I was going to downgrade again to version A7 and then out of the sudden it does not work anymore. SIGH, so sick and tired of this nonsense.
Whatever it took, I downloaded something which seemed to work and I have downgraded to version 7 - sadly I seem to have lost the link. But here are the files for installing it, first install the msi file and then copy the things in the folder LGUP_pie to the place where it was installed and override anything. And it should work.
So now my F800K is now again running A7, downgraded from A9! Back to looking into rooting and fixing boot loader.
install msi file and copy the things in folder pie into the installation and override it. At least it fixed my issue and downgraded from version 9 to 7.
Just go to ChazzMatt's Stock KDZ thread for your model. It has all the links you need for the correct LGUP version AND the KDZ file AND anything else you're likely to need. PLUS exact steps to install LGUP and perform the flashing. Oh, AND troubleshooting steps in case you have problems.
It's true, it DOES require that you go to the V30 ROM section and click on the thread for your model
I want to know if frankensteining a carrier unlocked us998 to vs99(Verizon version) is just a quick one step process to latest Pie, or do I need to install all updates one by one? The us998 is activated on Verizon and has Android 7.0 on it. Thanks.
charulo316 said:
tried all. After a few restarts, now get a "DLL for us99810b is invalid. Please install valid DLL package (*.msi) for the model". I've uninstalled and reinstalled a few times, deleted the folder, moved cable around, tried new cable. This is the furthest i've gotten now.
Click to expand...
Click to collapse
One of the trouble shooting tips in the Frankenstein post is to reinstall drivers, another is to try a different computer.
The dll error ALWAYS means either you didn't install the correct version of the Dev Patched LGUP or not using it correctly (like not launching from desktop shortcut, but instead trying to use the folder .exe file). If you are sure you have installed correct, have installed all the correct drivers, then try a different computer.
Thanks for reply. I've tried all steps from the post. Reinstalled, deleted, restarted. Only thing I haven't done is try a different computer. I get "LGUP can't load the model[c:\Program Files\LG Electronics\LGUP\model\com" error. Am i missing a file?
I noticed that the program also installs onto my C:. I also have to delete c:\LG Electronics folder. Is this normal? I've downloaded LGUP Dual from both links in the post. I guess i'll try a different PC. Thanks for your help.
I got it to recognize! Had to try on another computer but now it works. One more question though. Do I need to make a backup? If for some unknown reason I need to get back to the original software, how do I go about doing that? I have us998 with us99810b installed with Android 7.1.2. Thanks again.
charulo316 said:
I got it to recognize! Had to try on another computer but now it works.
Click to expand...
Click to collapse
That's why that tip is listed in the Trouble Shooting tips.
charulo316 said:
I got it to recognize! Had to try on another computer but now it works. One more question though. Do I need to make a backup? If for some unknown reason I need to get back to the original software, how do I go about doing that? I have us998 with us99810b installed with Android 7.1.2. Thanks again.
Click to expand...
Click to collapse
You would simply do the reverse. You would flash your phone back to US998 KDZ. However, US998 10b was very early Nougat. If you ever go back to US998, like to sell the phone or something, I would at least flash to newer US998 firmware -- like 20h (last Oreo).
charulo316 said:
I want to know if frankensteining a carrier unlocked us998 to vs99(Verizon version) is just a quick one step process to latest Pie, or do I need to install all updates one by one? The us998 is activated on Verizon and has Android 7.0 on it. Thanks.
Click to expand...
Click to collapse
Actually it's VS996, for the Verizon V30, not VS9998.
So you're on US998 Nougat?
Technically for Frankenstein, using Dev Patched LGUP you should Partition DL to VS996 Nougat, use Master Reset, then Refurbish to VS996 Pie.
However, US998 and VS996 have a level of compatibility the others don't enjoy. I think you can Partition DL straight to VS996 Pie, followed by Master Reset.
If you're not sure what Master Reset is (sequence of button), see the Frankenstein instructions.
ChazzMatt said:
Actually it's VS996, for the Verizon V30, not VS9998.
So you're on US998 Nougat?
Technically for Frankenstein, using Dev Patched LGUP you should Partition DL to VS996 Nougat, use Master Reset, then Refurbish to VS996 Pie.
However, US998 and VS996 have a level of compatibility the others don't enjoy. I think you can Partition DL straight to VS996 Pie, followed by Master Reset.
If you're not sure what Master Reset is (sequence of button), see the Frankenstein instructions.
Click to expand...
Click to collapse
Thanks for the reply. Do you recommend going straight to Pie? If its more reliable in steps ex. Nougat, Oreo, Pie, then ill do it. I was just wondering if jumping straight to Pie would cause issues.
charulo316 said:
Thanks for the reply. Do you recommend going straight to Pie? If its more reliable in steps ex. Nougat, Oreo, Pie, then ill do it. I was just wondering if jumping straight to Pie would cause issues.
Click to expand...
Click to collapse
No, won't cause issues if you're using the KDZ.
____
You're not Bootloader Unlocked and rooted, are you? You don't care about that? It's fine if you don't. Neither is my wife's, sister's nor brother-in-law's V30/V30+.
BUT if that is something you would want, no, you can't go straight to VS996 Pie until you do some other stuff.
But if you just want Verizon firmware, then you should be able to jump straight to VS996 Pie from US998 Nougat, going by what other Verizon users have done. Use Dev Patched LGUP in Partition DL mode, with all Partitions. Then Master Reset.
If for some reason, doesn't work, then tour would need to flash VS996 Nougat, Master Reset, then VS996 Pie.
At the most, all you would need
Thanks for the reply. I'm having difficulty getting LGUP to run. I get a 'LGUP can't load the model' I got the file from download LG dualmode. Any suggestions? I'm just trying to load Verizon stock on here, no root. Thanks.
ChazzMatt said:
No, won't cause issues if you're using the KDZ.
Thanks for the reply, I'm having a hard time installing LGUP dev tool. I get an' LGUP can't load the model' error. Any suggestions? Just trying to load Verizon stock on here. No root if possible.
____
You're not Bootloader Unlocked and rooted, are you? You don't care about that? It's fine if you don't. Neither is my wife's, sister's nor brother-in-law's V30/V30+.
BUT if that is something you would want, no, you can't go straight to VS996 Pie until you do some other stuff.
But if you just want Verizon firmware, then you should be able to jump straight to VS996 Pie from US998 Nougat, going by what other Verizon users have done. Use Dev Patched LGUP in Partition DL mode, with all Partitions. Then Master Reset.
If for some reason, doesn't work, then tour would need to flash VS996 Nougat, Master Reset, then VS996 Pie.
At the most, all you would need
Click to expand...
Click to collapse
I'm wondering the same as charulo316, but my v30+ is already running pie, but for the unlocked and I want to switch to the Verizon one, do I need to downgrade to Oreo and then back the the Verizon pie version??
Wolfpack81 said:
I'm wondering the same as charulo316, but my v30+ is already running pie, but for the unlocked and I want to switch to the Verizon one, do I need to downgrade to Oreo and then back the the Verizon pie version??
Click to expand...
Click to collapse
Read my previous answer:
ChazzMatt said:
Technically for Frankenstein, using Dev Patched LGUP you should Partition DL to VS996 Nougat, use Master Reset, then Refurbish to VS996 Pie.
However, US998 and VS996 have a level of compatibility the others don't enjoy. I think you can Partition DL straight to VS996 Pie, followed by Master Reset.
If you're not sure what Master Reset is (sequence of button), see the Frankenstein instructions.
Click to expand...
Click to collapse
You are basically asking about Frankenstein, where one North American variant can be fully converted to another (firmware, modem with LTE bands, etc)
Normally, for most North American variants, when flashing KDZ (LG stock firmware image) you actually need to downgrade all the way to Nougat first before upgrading to more current firmware. See Frankenstein instructions.
But US998/VS996 have a very close relationship. If have US998 firmware on the phone, you can go straight to Verizon VS996 Pie firmware using Dev Patched LGUP. For this specific combination you do not need to downgrade first.
ChazzMatt said:
You are basically asking about Frankenstein, where one North American variant can be fully converted to another (firmware, modem with LTE bands, etc)
Normally, for most North American variants, when flashing KDZ (LG stock firmware image) you actually need to downgrade all the way to Nougat first before upgrading to more current firmware. See Frankenstein instructions.
But US998/VS996 have a very close relationship. If have US998 firmware on the phone, you can go straight to Verizon VS996 Pie firmware using Dev Patched LGUP. For this specific combination you do not need to downgrade first.
Click to expand...
Click to collapse
Thank you!! I did some more searching around the site late last night and am going to try it tonight. The main reason is because i just switched to Verizon and the WIFI calling option disappeared even though it was "turned" through Verizon. It seems to be that even though I have a carrier unlocked phone, Verizon doesn't see that and will block certain features unless it is a Verizon phone. I have access to the network, but not the wifi calling
So I'm still having issues. I've downloaded and installed drivers and LGUP Dual mode from the link and can't seem to get it to work. I get the phone into download mode and it goes into the firmware upgrade screen but my LGUP doesn't load. I get a "LGUP can't load the model[c:\Program Files\Lg Electronics\LGUP\model\com" error. Any suggestions?
Just trying to install VS996 onto a Verizon enabled us998 so that i can get wifi calling, visual voicemail and video calling to work. Thanks
charulo316 said:
So I'm still having issues. I've downloaded and installed drivers and LGUP Dual mode from the link and can't seem to get it to work. I get the phone into download mode and it goes into the firmware upgrade screen but my LGUP doesn't load. I get a "LGUP can't load the model[c:\Program Files\Lg Electronics\LGUP\model\com" error. Any suggestions?
Just trying to install VS996 onto a Verizon enabled us998 so that i can get wifi calling, visual voicemail and video calling to work. Thanks
Click to expand...
Click to collapse
See the trouble shooting tips in the Frankenstein Instructions. How many of those have you tried?
Sounds like LGUP wasn't installed correctly. It needs to be installed using very specific steps. There are other possible explanations, but this is where I would start.
Uninstall LGUP completely (in Programs & Features control panel), then delete all its remnants and folders and restart Windows (not Shutdown, Restart).
Now download LGUP from the link in one of ChazzMatt's Pie KDZ ROM threads, and install it EXACTLY folding the steps he gives, no shortcuts or deviations.
If it still doesn't work, follow his troubleshooting steps in the same ROM thread.
Edit: Oops, Chazz beat me to it.
tried all. After a few restarts, now get a "DLL for us99810b is invalid. Please install valid DLL package (*.msi) for the model". I've uninstalled and reinstalled a few times, deleted the folder, moved cable around, tried new cable. This is the furthest i've gotten now.