Related
I do contract work for a cellular dealer, and they've given me some demo units to set up as loaner units for client devices going out for service.
I've been able to disable and remove the Retail Mode application on most of the devices, but two of the devices (the v30 and the G7 Thinq) don't seem to allow it to be removed - it's effectively baked into the ROM (it can be stopped/disabled, but that doesn't allow for full access - each time the device is wiped it goes back into demo mode, something that's useless for a service loaner).
Can I just follow the WTF guide, unlock the bootloader, and install a stock ROM without the retail mode included? My knowledge in my time with devices leads me to understand that there's no way to remove an app that's baked in (although some Samsung devices have bloatware removal tools or ADB commands to help with this process, so I figured asking might be a long shot!)
Thanks in advance
There was an LG package disabler floating around, or you *might* be able to "uninstall" it for the base user using ADB and the package manager.
If you could attain root access, there's no reason at all that you couldn't use a file manager and outright delete the app, but...
At that point you may as well go the extra mile and flash a retail ROM, since there might be other differences in the ROM that prevent it from being usable on a day-to-day basis.
There shouldn't be any hardware difference between a "display" unit and a retail unit, so flash away.
I would get the correct carrier firmware for the phone and use refurbish mode in LGUP (from the WTF thread). This is assuming they were originally regular phones that were opened, put in demo mode, and put on display.
However, if the V30 is carrier specific and the store sells multiple carriers (like a Best Buy), I would in this instance go through with the WTF method and convert it to a retail US998 (much more convenient), but no root or TWRP since it's to be used as a loaner. I don't know if there is a way to do something similar to the G7.
sh0nuff said:
I do contract work for a cellular dealer, and they've given me some demo units to set up as loaner units for client devices going out for service.
I've been able to disable and remove the Retail Mode application on most of the devices, but two of the devices (the v30 and the G7 Thinq) don't seem to allow it to be removed - it's effectively baked into the ROM (it can be stopped/disabled, but that doesn't allow for full access - each time the device is wiped it goes back into demo mode, something that's useless for a service loaner).
Can I just follow the WTF guide, unlock the bootloader, and install a stock ROM without the retail mode included? My knowledge in my time with devices leads me to understand that there's no way to remove an app that's baked in (although some Samsung devices have bloatware removal tools or ADB commands to help with this process, so I figured asking might be a long shot!)
Thanks in advance
Click to expand...
Click to collapse
hitokage004 said:
I would get the correct carrier firmware for the phone and use refurbish mode in LGUP (from the WTF thread). This is assuming they were originally regular phones that were opened, put in demo mode, and put on display.
However, if the V30 is carrier specific and the store sells multiple carriers (like a Best Buy), I would in this instance go through with the WTF method and convert it to a retail US998 (much more convenient), but no root or TWRP since it's to be used as a loaner. I don't know if there is a way to do something similar to the G7.
Click to expand...
Click to collapse
The only thing I would add is that once you use refurbish to carrier unlocked US998 with dev patched LGUP and stock firmware, you may not even need to use WTF to unlock the bootloader and root.
Yes, root would give you ultimate control to remove system apps. But just for getting the phone out of demo mode, that may not be necessary.
What I'm curious about is exactly which variant of LG v30 we're talking about? I assume it's one of the North America models, but which one? Or is this a store that sells phones from several carriers? Just be aware T-mobile H932 cannot be used for Frankenstein and WTF, due to different RSA encryption. All the other North American variants can be flashed to US998 or use refurbish to keep that variant's firmware. However, Sprint and AT&T do not release KDZ so it's very hard to get firmware for those models. It's usually best just to convert them to US998.
If you're converting one North America LG v30 to carrier unlocked US998, it's safer to first install US998 Nougat, do a master reset, then install US998 Oreo. See the instructions in the Frankenstein thread.
I don't mention "refurbish" in those instructions, but that's a very powerful command to use.
CONVERTING ANY NORTH AMERICA V30/V30+ TO US998 OREO (except T-Mobile H932)
ChazzMatt said:
The only thing I would add is that once you use refurbish to carrier unlocked US998 with dev patched LGUP and stock firmware, you may not even need to use WTF to unlock the bootloader and root.
Yes, root would give you ultimate control to remove system apps. But just for getting the phone out of demo mode, that may not be necessary.
What I'm curious about is exactly which variant of LG v30 we're talking about? I assume it's one of the North America models, but which one? Or is this a store that sells phones from several carriers? Just be aware T-mobile H932 cannot be used for Frankenstein and WTF, due to different RSA encryption. All the other North American variants can be flashed to US998 or use refurbish to keep that variant's firmware. However, Sprint and AT&T do not release KDZ so it's very hard to get firmware for those models. It's usually best just to convert them to US998.
If you're converting one North America LG v30 to carrier unlocked US998, it's safer to first install US998 Nougat, do a master reset, then install US998 Oreo. See the instructions in the Frankenstein thread.
I don't mention "refurbish" in those instructions, but that's a very powerful command to use.
CONVERTING ANY NORTH AMERICA V30/V30+ TO US998 OREO (except T-Mobile H932)
Click to expand...
Click to collapse
Didn't see this reply until now (for some reason I do t have an auto notify for my posts.)
The carrier is Telus, a Canadian provider. In the past they've been identical in software to AT&T hardware and I've been able to use files made for those phones.
I'll have a dig and see what I can do. Thanks for your help and apologies in not seeing this until now!
sh0nuff said:
Didn't see this reply until now (for some reason I do t have an auto notify for my posts.)
The carrier is Telus, a Canadian provider. In the past they've been identical in software to AT&T hardware and I've been able to use files made for those phones.
I'll have a dig and see what I can do. Thanks for your help and apologies in not seeing this until now!
Click to expand...
Click to collapse
Hello man.
I want to know if you've been able to remove the retail mode ?
I have a h931, i kdz to the us998 20h to get android 8 and every work fine .
Last night, i try to kdz my phone to h933 . it is ok too. But when i kdz back to us998.20h again. . my phone got a bootloop. It restart after enter home screen about 30 second . it restart again and again . .i try to master reset but it still restart so i have too kdz h933.20i and it is ok .
I really want to comeback us998 to root my phone. What should i do . tks .
Sorry for my bad english. Xd
ekko199331 said:
I have a h931, i kdz to the us998 20h to get android 8 and every work fine .
Last night, i try to kdz my phone to h933 . it is ok too. But when i kdz back to us998.20h again. . my phone got a bootloop.
It restart after enter home screen about 30 second . it restart again and again . .i try to master reset but it still restart so i have too kdz h933.20i and it is ok .
I really want to comeback us998 to root my phone. What should i do . tks .
Sorry for my bad english. Xd
Click to expand...
Click to collapse
1) Follow the Frankenstein instructions.
There's specific DIFFERENT step you have to take for Canada H933 to go to US998. Read the instructions.
2) Why are you jumping all over the place? You were on US998 before. Especially for people outside the North America who have North American variants, US998 is the best carrier unlocked V30 firmware to be using.
Besides lack of fastboot flash commands necessary for root, Canada H933 still doesn't have the 2019 DTS 3D Surround stereo libs (as of this moment in time). I'm sure they will get it eventually. But for users in other countries (who do not use North American carriers), US998 is the best choice for V30 stock firmware -- for LTE bands, features, lack of bloatware, and fastboot flash commands.
Tks ChazzMatt . I partition DL us99810d and us99820h after that and it's ok now .
I'm from Vietnam . and these seller in my country usually recommend the H933 firmware for any American V30 . They said they will have better signal .
ekko199331 said:
Tks ChazzMatt . I partition DL us99810d and us99820h after that and it's ok now .
Click to expand...
Click to collapse
Yes, that was it. The H933 requires Partition DL for both stages to convert to US998.
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.
My V30 doesn't seem to enjoy being flashed with Android 10, as it bootloops no matter what ROM I decide to use (Lineage, Havoc, Pixel Experience), and now I'm thoroughly stumped on what to do, as I can't find a fix for this issue. My phones bootloader is unlocked via Frankenstein, and I've used the method of flashing over 10d with 30b and having no luck. I've recently come across a post that said to attempt trying 20b to 30b, which I'll try as a last effort to get this working, but I'd still appreciate advice on what to do. Whether it be this last method, a modification of it, or just something else entirely, I'd be forever grateful for the help.
If you need more information, feel free to ask and I'll provide to the best of my ability.
AkajiWins said:
My V30 doesn't seem to enjoy being flashed with Android 10, as it bootloops no matter what ROM I decide to use (Lineage, Havoc, Pixel Experience), and now I'm thoroughly stumped on what to do, as I can't find a fix for this issue. My phones bootloader is unlocked via Frankenstein.
Click to expand...
Click to collapse
So you Frankensteined to US998, then unlocked the bootloader via WTF exploit. What variant did you start with?
AkajiWins said:
I've used the method of flashing over 10d (Nougat/Android 7) with 30b (Pie/Android 9) and having no luck. I've recently come across a post that said to attempt trying 20b (early Oreo) to 30b, which I'll try as a last effort to get this working, but I'd still appreciate advice on what to do. Whether it be this last method, a modification of it, or just something else entirely, I'd be forever grateful for the help.
If you need more information, feel free to ask and I'll provide to the best of my ability.
Click to expand...
Click to collapse
1) You need stock Android 9 (Pie) as a base before flashing any LOS-17 (Android 10) ROMs. But you seem to know that.
There are several methods to update to to Pie US998. See US998 Pie KDZ thread, post #2 and FOUR MORE WORKAROUND in post #6.
2) What variant did you start with? If you have former AT&T H931 or Canada H933, you'll need to do additional prep steps before installing any LOS custom ROMs.
Of course, you've read the V30 custom ROMs FAQ -- before you even unlocked your bootloader -- right? It tells all this and conveys other important information. This FAQ is prominently linked in the WTF instructions, with suggestion to read first, then come come back to finish unlocking bootloader...
V30 CUSTOM ROMS FAQ
https://forum.xda-developers.com/showpost.php?p=79459374&postcount=2
ChazzMatt said:
So you Frankensteined to US998, then unlocked the bootloader via WTF exploit. What variant did you start with?
1) You need stock Android 9 (Pie) as a base before flashing any LOS-17 (Android 10) ROMs. But you seem to know that.
There are several methods to update to to Pie US998. See US998 Pie KDZ thread, post #2 and FOUR MORE WORKAROUND in post #6.
2) What variant did you start with? If you have former AT&T H931 or Canada H933, you'll need to do additional prep steps before installing any LOS custom ROMs.
Of course, you've read the V30 custom ROMs FAQ -- before you even unlocked your bootloader -- right? It tells all this and conveys other important information. This FAQ is prominently linked in the WTF instructions, with suggestion to read first, then come come back to finish unlocking bootloader...
V30 CUSTOM ROMS FAQ
https://forum.xda-developers.com/showpost.php?p=79459374&postcount=2
Click to expand...
Click to collapse
Yes, I did read through the FAQ before and after unlocking. My variant is the US998U/V30+, which is why I'm a bit confused. The US998 and US998U are identical, aside from storage capacity, right?
I was following one of the guides you posted that stated:
ChazzMatt said:
So for installing the KDZ, I suggest FIRST downgrading to US998 Nougat 10d via Partition DL mode, Master Reset, then Refurbish to US998 Pie KDZ. Here are the steps...
If you have problems flashing this US998 Pie 30b KDZ, see post #6 for FOUR more workaround methods proven to work for some people.
You should probably use this method (DOWNGRADE to NOUGAT first) even if you have TWRP installed. Then reinstall TWRP again after successfully updating to Pie.
KDZ INSTALLATION INSTRUCTIONS
0) Turn off phone, manually go into Download mode before opening Dev Patched LGUP.
1) Using Dev Patched LGUP from THIS thread, flash US998 10d Nougat KDZ via Dev Patched LGUP using Partition DL mode. Select ALL partitions.
2) Master Reset. This is NOT Factory Reset.
3) Boot up to Welcome screen. Turn off phone, manually go back into Download mode.
4) Flash US998 30b Pie KDZ via Dev Patched LGUP using Refurbish mode.
5) Master Reset. This is NOT Factory Reset.
If you did not unlock your bootloader before doing this, then you bootloader is still locked -- because that's what you want. Finished. Set up your phone.
If you had unlocked bootloader before doing all this, you will still have it. Boot to ADB, and PLEASE follow these instructions for re-install TWRP and root!!
Click to expand...
Click to collapse
So that's what I had done a few days ago, but that's also when my problems arose. I was on the TWRP flashable kdz of 30b for a month or two now after Frankensteining it, but wanted to try out some 10 ROMS, but attempting to flash those ROMs was when I started having issues. Flashing the stock US998 kdzs didn't cause issues, the 30b zip I had been running daily wasn't weird, and the md5s for all the files downloaded matched what was provided as correct. That's why I'm a bit stumped, since I believe I followed all the guides I've looked at to make things work correctly, but this one part is giving me a hard time.
I will try those other four methods, since I don't believe to have seen them yet. I will provide an edit to this post after trying them, thank you.
AkajiWins said:
Yes, I did read through the FAQ before and after unlocking. My variant is the US998U/V30+, which is why I'm a bit confused. The US998 and US998U are identical, aside from storage capacity, right?
I was following one of the guides you posted that stated:
So that's what I had done a few days ago, but that's also when my problems arose. I was on the TWRP flashable kdz of 30b for a month or two now after Frankensteining it, but wanted to try out some 10 ROMS, but attempting to flash those ROMs was when I started having issues. Flashing the stock US998 kdzs didn't cause issues, the 30b zip I had been running daily wasn't weird, and the md5s for all the files downloaded matched what was provided as correct. That's why I'm a bit stumped, since I believe I followed all the guides I've looked at to make things work correctly, but this one part is giving me a hard time.
I will try those other four methods, since I don't believe to have seen them yet. I will provide an edit to this post after trying them, thank you.
Click to expand...
Click to collapse
If you Frankenstein'ed, I'm asking what your original variant is. Frankenstein is to convert North American variant to another, also called cross flashing.
Whereas " WTF" is bootloader unlock and installing TWRP. Some North American variants have to Frankenstein to US998 for fastboot flash commands. Then they can use WTF INSTRUCTIONS. But Frankenstein itself is not bootloader unlock, TWRP and root. It's just fully converting one variant to another. It ONLY works with the North American variants, except for T-Mobile H932.
_____
OK, so you were on LG US998 30b stock Pie successfully.
Put your IMEI into this database and tell me what it says? Don't post your IMEI here, publicly. Just curious what variant it says you have.
https://www.imeipro.info/
If you have V30+ US998 , then it's either native US998U or was formerly LS998U and converted to US998 by you or previous owner if you bought it used.
Neither AT&T H931 not Canada H933 have a native V30+, but I've seen H933 V30+ which were Frankenstein'ed.
ChazzMatt said:
If you Frankenstein'ed, I'm asking what your original variant is. Frankenstein is to convert North American variant to another, also called cross flashing.
Whereas " WTF" is bootloader unlock and installing TWRP. Some North American variants have to Frankenstein to US998 for fastboot flash commands. Then they can use WTF INSTRUCTIONS. But Frankenstein itself is not bootloader unlock, TWRP and root. It's just fully converting one variant to another. It ONLY works with the North American variants, except for T-Mobile H932.
_____
OK, so you were on LG US998 30b stock Pie successfully.
Put your IMEI into this database and tell me what it says? Don't post your IMEI here, publicly. Just curious what variant it says you have.
https://www.imeipro.info/
If you have V30+ US998 , then it's either native US998U or was formerly LS998U and converted to US998 by you or previous owner if you bought it used.
Neither AT&T H931 not Canada H933 have a native V30+, but I've seen H933 V30+ which were Frankenstein'ed.
Click to expand...
Click to collapse
Ahh, alrighty, I understand the difference now. So I had Frankenstein'ed to unlock my bootloader, then unlocked it with "WTF".
Also, the IMEI checker reported my device as a US998U V30+, which was what I bought it as used.
AkajiWins said:
Ahh, alrighty, I understand the difference now. So I had Frankenstein'ed to unlock my bootloader, then unlocked it with "WTF".
Also, the IMEI checker reported my device as a US998U V30+, which was what I bought it as used.
Click to expand...
Click to collapse
Merely downgrading to earlier firmware is not Frankenstein. Frankenstein is fully converting one variant to another. It takes on those different LTE bands, etc. Cross flashing AT&T H931 to US998 gives it CDMA bands the H931 doesn't have, different LTE bands, fastboot flash commands. Same with Frankenstein'ed H933. See screenshot.
If you already had US998 firmware and your IMEI check says it's a native US998U (V30+), then you didn't Frankenstein to US998. You already had US998 with fastboot flash commands. You just used LGUP to downgrade to early US998 Oreo for WTF bootloader unlock, TWRP installation and root and/or maybe you went to US998 Nougat at one point. But you were already US998. You weren't on LS998, AS998, H933, H931, VS996 firmware, at any point in time.
Why you are bootlooping on LOS-17 Android 10 ROMs, I don't know. You don't have former H931 or H933, and you said you were on US998 30b (Pie) when you tried to flash those ROMs.
ChazzMatt said:
Merely downgrading to earlier firmware is not Frankenstein. Frankenstein is fully converting one variant to another. It takes on those different LTE bands, etc. Cross flashing AT&T H931 to US998 gives it CDMA bands the H931 doesn't have, different LTE bands, fastboot flash commands. Same with Frankenstein'ed H933. See screenshot.
If you already had US998 firmware and your IMEI check says it's a native US998U (V30+), then you didn't Frankenstein. You already had US998 with fastboot flash commands. You just used LGUP to downgrade to early Oreo for WTF bootloader unlock, TWRP installation and root.
Why you are bootlooping on LOS-17 Android 10 ROMs, I don't know. You don't have former H931 or H933, and you said you were on US998 30b (Pie) when you tried to flash those ROMs.
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Should I attempt to Frankenstein to a different variant then come back? I was going to try to use the fourth method that you linked to before to try to put myself on an actual US998.
AkajiWins said:
Should I attempt to Frankenstein to a different variant then come back? I was going to try to use the fourth method that you linked to before to try to put myself on an actual US998.
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The problem with Method #4 is you are willingly converting to Canada H933. While that might get you back to US998 30b, it will then give you more difficulty in flashing LOS ROMs. You have to go through the tedious extra steps of former H931/H933.
ChazzMatt said:
The problem with Method #4 is you are willingly converting to Canada H933. While that might get you back to US998 30b, it will then give you more difficulty in flashing LOS ROMs. You have to go through the tedious extra steps of former H931/H933.
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As someone who doesn't necessarily mind the extra preparation, would you recommend it for someone in my predicament? And is there any log file I can provide to hopefully help give more insight?
AkajiWins said:
As someone who doesn't necessarily mind the extra preparation, would you recommend it for someone in my predicament?
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That's your decision. It should get you back to 30b. After that, for flashing ROMs, you'll have to follow the other instructions for H933 (since you will have converted to that, then converted back).
ChazzMatt said:
That's your decision. It should get you back to 30b. After that, for flashing ROMs, you'll have to follow the other instructions for H933 (since you will have converted to that, then converted back).
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Though if I am to do that, would I still keep the bands I have at the moment or would I lose them when converting? Would I have to refflash my modem partition(s)?
AkajiWins said:
Though if I am to do that, would I still keep the bands I have at the moment or would I lose them when converting? Would I have to refflash my modem partition(s)?
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The method is flash to H933 Nougat I believe, then flash back to US998. You don't stay on H933. You flash everything via LGUP Partition DL mode.
ChazzMatt said:
The method is flash to H933 Nougat I believe, then flash back to US998. You don't stay on H933.
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Ah alright, I'll try that. So just to clarify, I'd flash over to an H933, then come back to a US998, and then install the 30b kdz, and that should hopefully fix my issues?
AkajiWins said:
Ah alright, I'll try that. So just to clarify, I'd flash over to an H933, then come back to a US998, and then install the 30b kdz, and that should hopefully fix my issues?
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Yes. But read Method 4 carefully. Involves timing and buttons.
ChazzMatt said:
Yes. But read Method 4 carefully. Involves timing and buttons.
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LGUP doesn't seem to recognize my phone as a H933 after flashing and rebooting back to download mode, but the phone seems to know it's one when I flash and it says what build it's on and what's being flashed.
EDIT 1: Reinstalling LGUP fixed that particular issue, so I'll have to restart the procedure just so it's as unobstructed as possible.
EDIT 2: Never mind, still the same strange occurrence that happened before. I'll try to move on and see if it'll still work.
Okay so, after a lot of trouble, everything seems to work. I ran Jett's Wifi Backup fix to fix the broken wifi on Havoc, along with the Haumea kernel, and now everything seems stable.
Thank you for your help!!
I guess I just had to keep doing the procedure until it stuck
Hi guys, I'm a bit lost too.
My phone is a V300S that is Frankensteined to US998 with V300S modem, bootloader unlocked and installed TWRP.
However i also faced the problem of installing Android 10 based roms causing bootloops, I've seen on the Custom ROMs page that i needed the lastest stock Pie blobs, which is what i have currently (30b)
Is this variant using a different way for custom ROMs? Or did i do something entirely wrong on Frankensteining?
Edit: silly me recently saw that i need to convert my V300S to H930, not US998... I guess I'll try that first
Update: well everything went south, now i can't go back to US99830b anymore, stuck at V300s Oreo. I guess I'll start everything over again, but if there are things or procedures i needed to know, please, any help will do
I've been on Page Plus (Verizon MVNO) for a couple of years with this phone. I unlocked the bootloader and rooted it via Frankenstein and WTF methods. I just switched over to Mint (T-Mobile MVNO) and am missing a couple of features on the VS996 rom. I'm also getting incoming calls going straight to voicemail. I'd read that flashing it to US998 could fix it.
How can I flash it over and which stock rom should I use? Can I go straight for US998 Pie or start with Oreo? Can I flash the zips through TWRP or does it have to be through LGUP? I've been wading through a ton of posts for hours and can't seem to find a definitive answer.
What ROM are you coming from? Nougat, Oreo, Pie? That makes a difference...
pearlheartgtr said:
I've been on Page Plus (Verizon MVNO) for a couple of years with this phone. I unlocked the bootloader and rooted it via Frankenstein and WTF methods. I just switched over to Mint (T-Mobile MVNO) and am missing a couple of features on the VS996 rom. I'm also getting incoming calls going straight to voicemail. I'd read that flashing it to US998 could fix it.
How can I flash it over and which stock rom should I use? Can I go straight for US998 Pie or start with Oreo? Can I flash the zips through TWRP or does it have to be through LGUP? I've been wading through a ton of posts for hours and can't seem to find a definitive answer.
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Yes. For one, on VS996 firmware you don't have LTE band 12, which is very important to T-mobile network. US998 will give you that, plus US998 firmware will handle T-mobile VoLTE. It should also handle that on T-mobile MVNOs.
Do NOT try to flash actual T-mobile firmware onto anything but a true native T-mobile H932. I'm sure you understand that, but reiterating for others.
Instead we will be flashing US998 firmware back onto your VS996 phone.
When you used WTF you had to temporarily flash early Oreo US998 for fastboot flash commands, so you were on US998 at one time. We are just going back to US998, but more recent firmware.
Either flash last Oreo US998 20h or Pie US998 30b. You would use the TWRP flashable zips, NOT KDZ. With the TWRP flashable zips you can flash straight to those.
The Pie US998 firmware is a little wonky. Many people get stuck on the LG logo and then have to go down the rabbit hole of tedious workarounds. I am still on last Oreo 20h US998 for my daily phone, even though I flashed to Pie on a backup phone just to prove it works.
Even though these threads are labelled KDZ, you will also find the TWRP flashable zip versions there side-by-side:
[US998][STOCK][OREO]LG V30 US998 US99820h_00_0318.KDZ
NOTE: You possibly can just flash US998 20h, when going from VS996 later firmware. However, you may need to flash 20e, 20f, 20g and 20h all back-to-back. For the Oreo TWRP flashable zips they were incremental to some degree and just flashing 20h only may not be best case scenario. We figured out 20e, 20f, 20g, 20h was a good combination. I know this is true when going from US998 20a or 20b. I do not know if this is necessary when going from VS996 last Oreo or Pie to US998 20h. Just giving you more information.
[US998][STOCK][PIE]LG V30 US998 US99830b_00_0902.KDZ
If you use this and get stuck on LG logo read ALL of post #6 for various workarounds.
What VS996 firmware are you on? Pie or still Oreo?
Thank you so much!
I have everything working, as it should. I'm getting calls, AND I have wifi calling now. I didn't have it on VS996 after switching to Mint from Page Plus.
I was on VS996 Pie and I had to flash E-H. I first tried just H, but it went into a boot loop that was really fun to get out of because it wouldn't let me power down. I had to wait til it went to the Unlocked Device screen to get into TWRP again.
Now, I have to debloat and install everything again. No biggie. I've done this a million times with my other phones.
Thank you, again.
I hope this can help someone else.