Flash different firmware for MetroPCS LG L70 MS323 - Android Q&A, Help & Troubleshooting

Hi
I bought MetroPCS LG L70 MS323 unlocked. I am from india and i realised now that this doesnot support 2100hz UMTS frequency which is the one in india for 3G.:crying:
Please help whether i can flash different international firmware to make it work on 2100hz band
Thanks & regards

Bands are your hardware so you can't,download the lg firmware update tool to see if your firmware updates.
Sent from my LGMS323 using XDA Free mobile app

yogeshsr said:
Bands are your hardware so you can't,download the lg firmware update tool to see if your firmware updates.
Sent from my LGMS323 using XDA Free mobile app
Click to expand...
Click to collapse
Hi i read that the phones are made for all markets. So the manufacturer would have just disabled this band for metro pcs
so i was thinking whether by flashing different firmware we can activate this band

kss1 said:
Hi
I bought MetroPCS LG L70 MS323 unlocked. I am from india and i realised now that this doesnot support 2100hz UMTS frequency which is the one in india for 3G.:crying:
Please help whether i can flash different international firmware to make it work on 2100hz band
Thanks & regards
Click to expand...
Click to collapse
I believe it has the 2100hz band. To check all the available bands on the phone do the following:
1. On the dialer, key in 3845#*323# to bring up the hidden menu.
2. Then select the following menus: WCDMA-Only > Modem Settings > Network Mode
3. You should see WCDMA 2100. From googling my understanding is UMTS is built on top of WCDMA. So technically you're good.
Now why 3G may not work in India - One possibility is you may not have the APN settings configured for the local operator.
---------- Post added at 12:43 AM ---------- Previous post was at 12:09 AM ----------
Since the title of this thread refers to flashing firmware, I've a question: Can one flash the international (D320) firmware i.e. kdz file without any modification on the MS323 phone? Yes I'm aware about the boot loader being locked. But the goal here is to flash LG's own kdz as is - perhaps by tricking the LG Mobile Support Tool. There is a thread that talks in general about flashing any kdz. But it appears to be leveraging the older version of LG tool. Curious, if any one has tried using the newer version or has alternatives ideas if this can be done.

can we unlock the bootloader
hi thank u for the reply. itried the way u told. there is wcdma2100 available. but when i select this it says fail.
but for wcdma1900 it says pass.
i think since metro pcs doesnot operate on 2100hz this may be disabled in s/w.
tthat is reason i was asking bout flashing diff firmware
can we unlock the bootloader ??
thanks
AndyIce said:
I believe it has the 2100hz band. To check all the available bands on the phone do the following:
1. On the dialer, key in 3845#*323# to bring up the hidden menu.
2. Then select the following menus: WCDMA-Only > Modem Settings > Network Mode
3. You should see WCDMA 2100. From googling my understanding is UMTS is built on top of WCDMA. So technically you're good.
Now why 3G may not work in India - One possibility is you may not have the APN settings configured for the local operator.
---------- Post added at 12:43 AM ---------- Previous post was at 12:09 AM ----------
Since the title of this thread refers to flashing firmware, I've a question: Can one flash the international (D320) firmware i.e. kdz file without any modification on the MS323 phone? Yes I'm aware about the boot loader being locked. But the goal here is to flash LG's own kdz as is - perhaps by tricking the LG Mobile Support Tool. There is a thread that talks in general about flashing any kdz. But it appears to be leveraging the older version of LG tool. Curious, if any one has tried using the newer version or has alternatives ideas if this can be done.
Click to expand...
Click to collapse

i am also stuck at 2G
kss1 said:
hi thank u for the reply. itried the way u told. there is wcdma2100 available. but when i select this it says fail.
but for wcdma1900 it says pass.
i think since metro pcs doesnot operate on 2100hz this may be disabled in s/w.
tthat is reason i was asking bout flashing diff firmware
can we unlock the bootloader ??
thanks
Click to expand...
Click to collapse
Please Help i have same problem.
Any one Have LG D320N Firmware then please post link..

Hello guys,does anyone know if i can flash a firmware from LG L70 D325? the reason si that i need a russian language on my phone.. Thanks

jpwall-cell said:
Please Help i have same problem.
Any one Have LG D320N Firmware then please post link..
Click to expand...
Click to collapse
Check out the Metro PCS LG 70 thread for the D320 firmware (FYI - It's not D320N but D320 may be of alternate interest). There is also another thread about flashing KDZ. If you're able to flash successfully, please do post your experience.

Lost the Hope and Sold MS323
AndyIce said:
Check out the Metro PCS LG 70 thread for the D320 firmware (FYI - It's not D320N but D320 may be of alternate interest). There is also another thread about flashing KDZ. If you're able to flash successfully, please do post your experience.
Click to expand...
Click to collapse
i have tried to flash d320 firmware but i was not able to complete because driver error.
After doing try and error i have finally sold the device.
But plan to buy if confirmed to be work on 3G.
Thanks for reply.

I also have a lg l70 from metro pcs... does anyone unlocked the 2100 band?

jpwall-cell said:
i have tried to flash d320 firmware but i was not able to complete because driver error.
After doing try and error i have finally sold the device.
But plan to buy if confirmed to be work on 3G.
Thanks for reply.
Click to expand...
Click to collapse
FYI - On a different thread (scroll to post #790), they have now posted instructions on how to unlock the boot loader. Perhaps one can now try to flash the d320 firmware.

Thanks For Reply !! Via Flashing can we unbale 3G Band in India ?
AndyIce said:
FYI - On a different thread (scroll to post #790), they have now posted instructions on how to unlock the boot loader. Perhaps one can now try to flash the d320 firmware.
Click to expand...
Click to collapse
Thanks For Reply.
But after flashing d320 firmware can we unlock 2100 band for use in india ?

jpwall-cell said:
Thanks For Reply.
But after flashing d320 firmware can we unlock 2100 band for use in india ?
Click to expand...
Click to collapse
The band may have been disabled via software. If that is the case, you may get lucky. But if the hardware itself is absent to begin with, then the flashing will not help. Unless one tries, one cannot conclusively tell one way or the other.

AndyIce said:
The band may have been disabled via software. If that is the case, you may get lucky. But if the hardware itself is absent to begin with, then the flashing will not help. Unless one tries, one cannot conclusively tell one way or the other.
Click to expand...
Click to collapse
According to earlier comments#5, the MS323 hardware supports WCDMA 2100 band, but this band is blocked by software.
So, anyone can try this method to unlock 2100 bands.

AndyIce said:
The band may have been disabled via software. If that is the case, you may get lucky. But if the hardware itself is absent to begin with, then the flashing will not help. Unless one tries, one cannot conclusively tell one way or the other.
Click to expand...
Click to collapse
Did you try enabling the WCDMA AWS Band under modem settings>WCDMA Only( to get this, please dial 3845#*323#)
Try this and see if if you can get 3G sinals in India...

dose any one fixed this problem??

I am also looking to see if the LG L70 can be flashed to a different baseband radio. I'd like to see if flashing the international firmware will not delete any data on my phone. I travel to Spain and woudl like the L70 to be on anything other than the 2G it defaults to. My L70 is BootLoader unlocked, carrier unlocked and rooted. Thanks.

Related

[Q] How can I get AWS bands back on a bricked Rogers Lumia 920?

Hello everybody,
My Rogers Lumia 920 (unlocked and pentaband beforehand) was bricked mysteriously overnight and I came across the instructions to unbrick the phone. In my NaviFirm search, I noticed that the Rogers ROMs (releases 1232.2109.1242.1002 i believe) for the RM-820 have disappeared as there are many screenshots of them which were posted a few weeks ago. As a last resort, I flashed the AT&T ROM onto my 920 and I have lost the ability to use my phone on Wind mobile and all other AWS networks. Does anybody by chance have an already downloaded Rogers ROM they could share with me? Are there any other roms for the 920 that don't have the AWS bands disabled?
Thanks in advanced!
TheElse said:
Hello everybody,
My Rogers Lumia 920 (unlocked and pentaband beforehand) was bricked mysteriously overnight and I came across the instructions to unbrick the phone. In my NaviFirm search, I noticed that the Rogers ROMs (releases 1232.2109.1242.1002 i believe) for the RM-820 have disappeared as there are many screenshots of them which were posted a few weeks ago. As a last resort, I flashed the AT&T ROM onto my 920 and I have lost the ability to use my phone on Wind mobile and all other AWS networks. Does anybody by chance have an already downloaded Rogers ROM they could share with me? Are there any other roms for the 920 that don't have the AWS bands disabled?
Thanks in advanced!
Click to expand...
Click to collapse
I just posted links to the Rogers firmware at http://forum.xda-developers.com/showpost.php?p=36686433&postcount=8 .
However, I hate to be the bearer of bad news, but there are reports of the AT&T firmware fully disabling the AWS bands, even if you re-flash the Rogers ROM afterwards. Maybe the posts I've seen are wrong, so by all means give it a try and please let us know the result. :fingers-crossed:
Good Luck!
Wow, thank you so much!!! I'll try it and let you know how it goes.
You have just made my week
Edit: Yeah, the band is still disabled on the Rogers ROM. CURSE YOU AT&T!
Does anybody know how to do a total clearing and re installation of the Rogers ROM then? A bit of a stretch, but hoping this phone won't have to meet Craigslist or something, I love everything about it minus the fact it doesn't work on my network.
Thanks again!
TheElse said:
Wow, thank you so much!!! I'll try it and let you know how it goes.
You have just made my week
Edit: Yeah, the band is still disabled on the Rogers ROM. CURSE YOU AT&T!
Does anybody know how to do a total clearing and re installation of the Rogers ROM then? A bit of a stretch, but hoping this phone won't have to meet Craigslist or something, I love everything about it minus the fact it doesn't work on my network.
Thanks again!
Click to expand...
Click to collapse
After reflashing the rogers rom did you do a factory reset? I really doubt that flashing an at&t rom permanently disables the aws band even after the original rogers rom has been flashed again. That would mean the at&t rom changes a very secure low level area of the phone and it just doesn't seem that likely or anything I've heard of happening before...
TheElse said:
Wow, thank you so much!!! I'll try it and let you know how it goes.
You have just made my week
Edit: Yeah, the band is still disabled on the Rogers ROM. CURSE YOU AT&T!
Does anybody know how to do a total clearing and re installation of the Rogers ROM then? A bit of a stretch, but hoping this phone won't have to meet Craigslist or something, I love everything about it minus the fact it doesn't work on my network.
Thanks again!
Click to expand...
Click to collapse
yea man , same here had a bricked developer phone which I flashed with ATT Rom and now flashed it to Rogers Rom. I am still stuck with Edge on Tmobile :crying:. If only there is a method for a clean installation !
patrick92260 said:
After reflashing the rogers rom did you do a factory reset? I really doubt that flashing an at&t rom permanently disables the aws band even after the original rogers rom has been flashed again. That would mean the at&t rom changes a very secure low level area of the phone and it just doesn't seem that likely or anything I've heard of happening before...
Click to expand...
Click to collapse
By factory reset, do you mean going into about and reset my phone? If so, yep, I tried it and it didn't help recover the aws band. Is there any way to access the system root of the phone, or am I dreaming at this point? Thanks!
TheElse said:
By factory reset, do you mean going into about and reset my phone? If so, yep, I tried it and it didn't help recover the aws band. Is there any way to access the system root of the phone, or am I dreaming at this point? Thanks!
Click to expand...
Click to collapse
Yeah that's what I meant for a reset. The only other way I can even think of getting the AWS back is possibly finding a dialer code that would let you select radio bands. I want to figure this out too b/c I have a sim unlocked at&t lumia that I want to flash the rogers rom to so I can get the AWS band.
patrick92260 said:
Yeah that's what I meant for a reset. The only other way I can even think of getting the AWS back is possibly finding a dialer code that would let you select radio bands. I want to figure this out too b/c I have a sim unlocked at&t lumia that I want to flash the rogers rom to so I can get the AWS band.
Click to expand...
Click to collapse
##3282# (Or ##3282 call) will present you with a thing that lets you change the bands used for 3g and lte, but it doesn't have the aws band (band IV) for selection under 3g D:
TheElse said:
##3282# (Or ##3282 call) will present you with a thing that lets you change the bands used for 3g and lte, but it doesn't have the aws band (band IV) for selection under 3g D:
Click to expand...
Click to collapse
I really have no idea then... But I'm 99% sure after flashing dozens of phones from different companies that the AWS band is not permanently disabled. We just need to find a way to get it back on. Problem is it's probably going to take someone with more technical skills about windows phone 8 (probably searching thru the root directory) to re-enable it.
someone would need to post the baseband of the rogers model and then you can flash the baseband and get your aws band back.
I read somewhere that all the lumias 920 are the same on hardware side, that they only have different softwares and firmware on the inside; rumor has it that if you could get the firmware and baseband that nokia flashes into the dev phones, you could convert any lumia 920 into a dev phone with anything unlocked.
ellokomen said:
someone would need to post the baseband of the rogers model and then you can flash the baseband and get your aws band back.
I read somewhere that all the lumias 920 are the same on hardware side, that they only have different softwares and firmware on the inside; rumor has it that if you could get the firmware and baseband that nokia flashes into the dev phones, you could convert any lumia 920 into a dev phone with anything unlocked.
Click to expand...
Click to collapse
If flashing the att rom to a rogers phone installs the att baseband (which disables AWS) then reflashing the original rogers rom would overwrite the att baseband with the original rogers baseband (should re-enable AWS) so I don't think that is the issue.
patrick92260 said:
If flashing the att rom to a rogers phone installs the att baseband (which disables AWS) then reflashing the original rogers rom would overwrite the att baseband with the original rogers baseband (should re-enable AWS) so I don't think that is the issue.
Click to expand...
Click to collapse
The AT&T baseband seems to stick though, maybe the AT&T rom has another file that has no equivalent in the rogers ROM that's sole purpose it to lock out the AWS band. Hopefully we can get this fixed soon, I'd love to love the Lumia 920, but at this rate, my eyes are starting to turn to the 8x.
patrick92260 said:
If flashing the att rom to a rogers phone installs the att baseband (which disables AWS) then reflashing the original rogers rom would overwrite the att baseband with the original rogers baseband (should re-enable AWS) so I don't think that is the issue.
Click to expand...
Click to collapse
I don't think the rogers firmware includes the rogers baseband, as the baseband is the one that controls the radios and frequencies of the handset.
One can install a firmware without a baseband and viceversa
ellokomen said:
I don't think the rogers firmware includes the rogers baseband, as the baseband is the one that controls the radios and frequencies of the handset.
One can install a firmware without a baseband and viceversa
Click to expand...
Click to collapse
Hmm, I guess we're basically just hunting for the Rogers baseband then. If only there was a way to browse the system root of a windows phone device D:
TheElse said:
Hmm, I guess we're basically just hunting for the Rogers baseband then. If only there was a way to browse the system root of a windows phone device D:
Click to expand...
Click to collapse
The baseband for my stock at&t 920 with the portico ota is 1.0.202075.3. Someone who has a stock rogers 920 that didn't flash the att rom what is your baseband version? (about - more info) Then we need to compare and see what the baseband is on a rogers phone that has lost the AWS band.
patrick92260 said:
The baseband for my stock at&t 920 with the portico ota is 1.0.202075.3. Someone who has a stock rogers 920 that didn't flash the att rom what is your baseband version? (about - more info) Then we need to compare and see what the baseband is on a rogers phone that has lost the AWS band.
Click to expand...
Click to collapse
I just updated my phone to portico and it seems that I've got the same baseband as you. Can anybody with a stock Rogers ROM post their baseband? After updating, my phone popped up with a new message when I put in my wind sim. It said "Phone mode changes. Your phone is now in GSM mode." I have no idea if you can change modes or anything like that.
Hey guys, I just wanted to jump in here and say that I'm having the same issues. I have a BUILD Dev phone that was bricked -> flashed AT&T -> flashed Rogers and the AWS band is disabled / vanished.
I've contacted Nokia Experts and was told the only option at the moment was to get me a new phone... and I've been waiting for months, lol. I'm thinking that they're going to send me a standard unlocked L920 without AWS bands but that's a bridge I'll cross when or if I get there... I was also told that the repair center did not have the ability to fix this problem and when I asked for the original firmware I was told they (Nokia Experts) did not have it.
Someone HAS to know what's going on here and how to fix it!
If anyone finds a way to get the AWS band back I'm willing to PayPal them $100. Maybe those with more skill will help if we offer financial incentive?
I'm in the US on T-Mobile for reference.
What we need to figure out first is what the baseband is on a stock rogers 920 that has never had the att firmware flashed on it. If it is different then it looks like you'll have to wait this out until nokia comes out with new firmware that has an upgraded baseband and hopefully that brings back the AWS
What about the base band from a Dev device like mine? If the Rogers would work as a reference point then I'd imagine the Dev base band would work too.
There are several users here with them. I can't provide mine because It's been flashed as I mentioned, but I'm currently running 1.0.202075.3 as well as others in this thread.
Onyx Z32 said:
What about the base band from a Dev device like mine? If the Rogers would work as a reference point then I'd imagine the Dev base band would work too.
There are several users here with them. I can't provide mine because It's been flashed as I mentioned, but I'm currently running 1.0.202075.3 as well as others in this thread.
Click to expand...
Click to collapse
Is there a way to port TouchXPlorer to WP8? I think it has access to the system directory on WP7 but I've never actually used it before. That might help us extract the correct baseband.

flash the t-mobile firmware to the verizon lg g5

Hi, could I flash the t-mobile firmware file or rom to the verizon lg g5? I switched to t-mobile, and am able to use the verizon phone, but lte drops to 3g for calls and lots of the time data shows up as hspa when I check the icon. If it can be done, please explain how. Thanks in advance.
No you can't flash the T Mobile firmware.
other firmwares beeing flashed on different lg g5's
So, there is no way to flash different firmwares on the verizon model, just other ones. Is this because the bootloader is locked? How can people flash a different region firmware on some of the models?
I to am curious on this, i have called LG and was told that the only difference between the T-Mobile and the Verizon LG G5, was software based, and that their was no hardware differences at all.
If that is true, why would we not be able to flash the T-Mobile rom onto our verizon phone?
DO NOT ATTEMPT THIS OR YOU WILL BRICK YOUR PHONE BEYOND ANY REPAIR. It has been said MANY times before, google it first
gigawatt said:
Hi, could I flash the t-mobile firmware file or rom to the verizon lg g5? I switched to t-mobile, and am able to use the verizon phone, but lte drops to 3g for calls and lots of the time data shows up as hspa when I check the icon. If it can be done, please explain how. Thanks in advance.
Click to expand...
Click to collapse
The hardware is essentially different... Has nothing to do with locked bootloader, u could still use LGUP to flash regardless but it would likely brick your phone. Drops to 3g because of the bands used, there may be a workaround but it's unlikely.

LG v10 korean version-flash or not

Hi to all!
This is my first post here.
Couple days ago i purchased LG v10 (F600L) with 64GB of ROM! This is korean model from network U+.
I live in Croatia so I can't use some features from phone, and it's not the major problem.
I wonder if is possible to flash phone with H960 firmware? Via LGUP app from my PC? Is it problem because my phone has no unlocked bootloader and in some posts on the internet I readed I can brick up my phone.
4G does not work either. Probably only korean version of LTE, not supported in Croatia.
So, if I do firmware upgrade via LGUP, with euro-version, will I get phone with only 32GB, will LTE bands be opened to euro-networks?
I didn't say that I can't upgrade my korean version to Android 6.0, via OTA or LG Bridge. It says Cannot check the latest firmware.
So, guys, to do it or stay out of any attempting?
Thanks and regards from Dubrovnik!
Is it true that noone knows?
Cannot, ne mozes! Just try to read a little more about it.
If you click the link you can see there is support for 4G in Croatia.
https://www.frequencycheck.com/compare-devices/ynatK8/lg-v10-h961n/lg-v10-h962
Pozdraviti iz Thailanda
I can see Croatian operators can offer me LTE 1800mHz only.
So, in suburbs of croatian big cities I have LTE, but only in streets, outside places etc. Whei I enter in some bar or restaurant, LTE wanishes.
I'm on VIPnet Croatia which provides LTE 800/1800. It seems my Korean V10 works only on 1800.
Too bad. Cause, it's good phone. I upgraded recently to Android 6.0 (MM) via link on this forum and it works even better than on 5.1.
On posts on this forum(s) I can see that my device cannot be flashed with another firmware. I've downloaded Turkish version (64GB) but LG UP says Error. It seems I have to root my device, but even than, it's not for sure that all LTE bands will working.
Koreans made the mess by locking with brandings their devices.
@moby77: for what I know, you can't flash a different firmware... a brick is nearly assured.
But you can try this code: 5457#*600# then go to Multi Band Selection and check LTE bands that are available in your Country.
Don't know if that procedure works in your device, but it well worth a try!
moby77 said:
Hi to all!
So, if I do firmware upgrade via LGUP, with euro-version, will I get phone with only 32GB, will LTE bands be opened to euro-networks?
Click to expand...
Click to collapse
I am not sure but most probably flashing wrong firmware will brick the phone. However, one thing I am sure is just flashing the firmware on different version never unlocks the bands of 3G/LTE. These bands cannot be unlocked this way. If F600L does not support a particular band in your country, it will not run LTE no matter what firmware you flash.
F600L is very well locked by Koreans so I san't do anything except flashing new kind of firmware, but one provided from U+ network.
One day I got mad, so I used LG UP, downloaded firmware for Turkish H960, and pressed Start button (it really was pissed off so even I bricked phone, my fault. Totaly insane, but...). After 4% od doing "something" it said Error, cannot flash firmware! (or something like this).
Official os
you have H901-10c official os bcz when i upgred using LGUP my phone is not starting as well as not showing charging sign when i am connect my charger

Where To Download Latest USA Factory Unlocked Firmware For Stylo 4 (KDZ)?

I'm looking for the latest USA factory unlocked firmware for the Stylo 4 (KDZ file), does anyone know where I can find that? I have looked everywhere I can think of and everyone has carrier specific firmware, but not the one I am looking for.
The specific model is LMQ710ULM.AUSABK.
The IMEI is: 357183090498307
Try This
SpikeyPsyche said:
I'm looking for the latest USA factory unlocked firmware for the Stylo 4 (KDZ file), does anyone know where I can find that? I have looked everywhere I can think of and everyone has carrier specific firmware, but not the one I am looking for.
The specific model is LMQ710ULM.AUSABK.
The IMEI is: 357183090498307
Click to expand...
Click to collapse
Hi there,
I would like to know which specific carrier that your looking for.
Sincerely
KIBS2173
KIBS2173 said:
Hi there,
I would like to know which specific carrier that your looking for.
Sincerely
KIBS2173
Click to expand...
Click to collapse
It is the unlocked model sold directly by LG in the USA, so it is non-carrier firmware.
Try This
SpikeyPsyche said:
It is the unlocked model sold directly by LG in the USA, so it is non-carrier firmware.
Click to expand...
Click to collapse
Hi there,
You can try this website.
https://lg-firmwares.com/
or
https://lg-firmwares.com/lg-lmq710ulm-firmwares/#tab=firmwares
since your phone is network unlocked I think it might be safe to reinstall the firmware.
However, if you have your doubts feel free to search it online or ask LG directly.
Sincerely
KIBS2173
KIBS2173 said:
Hi there,
You can try this website.
https://lg-firmwares.com/
or
https://lg-firmwares.com/lg-lmq710ulm-firmwares/#tab=firmwares
since your phone is network unlocked I think it might be safe to reinstall the firmware.
However, if you have your doubts feel free to search it online or ask LG directly.
Sincerely
KIBS2173
Click to expand...
Click to collapse
Thank you. I found out that they never released the KDZ for the factory unlocked phones (region USA). So, the only way to update my phone would be to flash carrier firmware, which, is kinda risky, since it would technically be a crossflash. I would likely lose certain features, such as Wi-Fi calling and/or VoLTE. One of the few firmwares that supports wi-fi calling is the T-Mobile firmware, but I wouldn't flash that firmware because it is different than the hardware of my phone (their model has 2 GB of RAM, mine has 3 GB of RAM, etc...
Try This
SpikeyPsyche said:
Thank you. I found out that they never released the KDZ for the factory unlocked phones (region USA). So, the only way to update my phone would be to flash carrier firmware, which, is kinda risky, since it would technically be a crossflash. I would likely lose certain features, such as Wi-Fi calling and/or VoLTE. One of the few firmwares that supports wi-fi calling is the T-Mobile firmware, but I wouldn't flash that firmware because it is different than the hardware of my phone (their model has 2 GB of RAM, mine has 3 GB of RAM, etc...
Click to expand...
Click to collapse
Hi there,
Yes, while I was researching it online I found two firmware for this phone for the US region. But anyways have you tried using a PC suite from LG to reinstall the firmware. Or have you tried going on to the recovery mode and just reset the whole device. Or better try to install a custom ROM, to be honest I think it might be okay if you flashed a Europe region firmware, but make sure you back up the current firmware. I flashed a Samsung phone which was used to be locked and then I unlocked it after that I flashed the carrier firmware and it didnt carrier locked my phone. But anyways try your best.
Sincerely
KIBS2173

Calls not working through Simple Mobile / T-Mobile network

I'm at my wit's end on this. Calls stopped working the other day due to 3G disablement as far as I can tell. AT&T model unlocked and using with Simple Mobile on T-Mobile network. Calls would just say "Calling" for a long time and then eventually disconnect. I could switch to GSM and make calls again, but slow data. Simple told me to get a new SIM and when trying to activate, it shows ineligible IMEI due to no Volte it seems.
I'm trying to get that fixed, but running into various issues.
LM-G850UM
I tried to crossflash (https://forum.xda-developers.com/t/tutorial-crossflash-bypass-opid-mismatched-error.4345963/)
I flashed G850QM30c_00_NAO_US_OP_0224.kdz but it didn't ask me to change the model, so it still shows LM-G850UM software G850UM30c. IMEI is the same.
Since this didn't get calls back or Volte, I tried updating the MBN (https://forum.xda-developers.com/t/...ther-qualcomm-powered-lg-devices-too.4343655/)
Data shows 4G. Calls don't even try to connect.
I don't know what to do next and don't have much time to try to figure it out. I like the G8X, so I'm hoping there's a way to save it.
Any thoughts from the experts?
Brando81 said:
I'm at my wit's end on this. Calls stopped working the other day due to 3G disablement as far as I can tell. AT&T model unlocked and using with Simple Mobile on T-Mobile network. Calls would just say "Calling" for a long time and then eventually disconnect. I could switch to GSM and make calls again, but slow data. Simple told me to get a new SIM and when trying to activate, it shows ineligible IMEI due to no Volte it seems.
I'm trying to get that fixed, but running into various issues.
LM-G850UM
I tried to crossflash (https://forum.xda-developers.com/t/tutorial-crossflash-bypass-opid-mismatched-error.4345963/)
I flashed G850QM30c_00_NAO_US_OP_0224.kdz but it didn't ask me to change the model, so it still shows LM-G850UM software G850UM30c. IMEI is the same.
Since this didn't get calls back or Volte, I tried updating the MBN (https://forum.xda-developers.com/t/...ther-qualcomm-powered-lg-devices-too.4343655/)
Data shows 4G. Calls don't even try to connect.
I don't know what to do next and don't have much time to try to figure it out. I like the G8X, so I'm hoping there's a way to save it.
Any thoughts from the experts?
Click to expand...
Click to collapse
Make a back up,and cross flash it with T-Mobile firmware.Problem solved.
Thanks Surge!
I crossflashed to general firmware. Where's the best place for the TMobile firmware? Just off their website? Will that lock the phone again, or will I still be able to use the Simple Mobile Service?
Brando81 said:
Thanks Surge!
I crossflashed to general firmware. Where's the best place for the TMobile firmware? Just off their website? Will that lock the phone again, or will I still be able to use the Simple Mobile Service?
Click to expand...
Click to collapse
It shouldn't lock the device if it's already unlocked.You can also use G8 firmware as well.(same device)Look here,this should get you the firmware you need.
Models - LG-Firmwares.com
Free archive of LG firmwares. Comparison of features and reviews of all mobile devices. Quick download of updates for your device.
lg-firmwares.com
Thanks again, Surge.
That's where I got my KDZ before. I used the one here: https://lg-firmwares.com/lg-lmg850qm-firmwares/ and used the 3/24/22 version for Android 11. When I flashed it with LG UP, it didn't ask me to change models, which I'm not sure if that's why it didn't trigger it to start working again.
Brando81 said:
Thanks again, Surge.
That's where I got my KDZ before. I used the one here: https://lg-firmwares.com/lg-lmg850qm-firmwares/ and used the 3/24/22 version for Android 11. When I flashed it with LG UP, it didn't ask me to change models, which I'm not sure if that's why it didn't trigger it to start working again.
Click to expand...
Click to collapse
Most are using the international firmware for the G8 and G8x models.Which is what the qm firmware is.If you're carrier is T-Mobile or any T-Mobile MVNO,I would solely use T-Mobile firmware.My G8x is AT&T branded and factory unlocked,and I tried using Tmobile service about 2 months ago and was having issues sending text messages.I could place and receive calls and get text but couldn't send them period.
Yeah, so my G8X is AT&T unlocked. AT&T didn't activate VOLTE on this model, so when T-Mobile shut down their 3G network, Simple Mobile calls won't work and the current IMEI shows it's not eligible (because of the model.) At least that's my understanding so far.
So for the G8, is this the firmware I should crossflash? https://lg-firmwares.com/lg-lmg820tm-firmwares/ or I could try the QM which may or may not work. Is that correct? Basically going to the 820 firmwares instead of the 850?
Brando81 said:
Yeah, so my G8X is AT&T unlocked. AT&T didn't activate VOLTE on this model, so when T-Mobile shut down their 3G network, Simple Mobile calls won't work and the current IMEI shows it's not eligible (because of the model.) At least that's my understanding so far.
So for the G8, is this the firmware I should crossflash? https://lg-firmwares.com/lg-lmg820tm-firmwares/ or I could try the QM which may or may not work. Is that correct? Basically going to the 820 firmwares instead of the 850?
Click to expand...
Click to collapse
I would go with the T-Mobile firmware since you're on their network.It wouldn't make a difference with VoLTE enabled with an AT&T sim.Once you pull the sim,and swap it it defaults back and turns the IMS settings off until it receives the configuration from their servers.Yes,820 firmware.It at least has the higher android builds,and better security patches.Once you put T-Mobile firmware on the device it should all work regardless of IMEI.
Edit:Make a back-up.Don't forget to do that first!
OK Surge....you've been helpful and seem to know what you're doing. What did I mess up?
I followed the cross flash instructions. I flashed the 820QM firmware first, and System loaded but the touchscreen wouldn't respond. I could only use the hard phone buttons. Decided to go to what you recommended with 820TM and it wouldn't boot at all - black screen - but I could still get to QFIL and LGUP.
I reflashed 850QM and touchscreen works again and I'm back to where I started.
When I flashed 820s, It did ask me if I wanted to change model numbers this time and I said Yes. And it asked it said it was changing some partitions on the 820 loads.
I may have been working on this too late. I appreciate your help so far.
Brando81 said:
OK Surge....you've been helpful and seem to know what you're doing. What did I mess up?
I followed the cross flash instructions. I flashed the 820QM firmware first, and System loaded but the touchscreen wouldn't respond. I could only use the hard phone buttons. Decided to go to what you recommended with 820TM and it wouldn't boot at all - black screen - but I could still get to QFIL and LGUP.
I reflashed 850QM and touchscreen works again and I'm back to where I started.
When I flashed 820s, It did ask me if I wanted to change model numbers this time and I said Yes. And it asked it said it was changing some partitions on the 820 loads.
I may have been working on this too late. I appreciate your help so far.
Click to expand...
Click to collapse
I think someone else encountered this once before,and it was caused by certain manufacturering dates of the device.Some models can use 820 firmware,and some can only use 850.Looks as if yours is kind of stuck with 850 firmware only.I think the AT&T version I have I could go either way it worked with no problems.I still have my G8x but never really used it.I bought it because it came with the dual screen attachement,and $125 I took it.Here's my Sprint copy if you want to give it a try.It's a LUNS copy minus LUNS 5 for IMEI information etc.I was in the same boat as you on certain features not working with AT&T at one point myself and had to crossflash the Sprint version of the device.With that being said,try this one from LG Fans first.If that doesn't work,try my LUNS Sprint copy and let me know which ones works the best.
LG G850UM | LG G8X ThinQ | Version: G850UM30a_00_0901 | Firmware for Region: CAN from - Lg-firmwares.com
LG G850UM Download the latest version of firmware | OS Version: Android 11 R | Firmware version: G850UM30a_00_0901 | CAN - Fan club LG-firmwares
lg-firmwares.com
Sprint LG G8x Last Update - Google Drive
drive.google.com
So interesting news....I obviously didn't try making calls last night at 2AM, but apparently reflashing with the same exact 850QM software I used before seems to have fixed the issue. Maybe changing the model to 820 and then changing back to 850? Who knows? That's like the 3rd thing that happened with this process that I have no idea why it started working differently, but hey I'm happy and back up and rolling.
Thanks for all of your help, Surge! I was truly at wits end, and had already ordered a new phone, even though I'm happy with the G8X overall. Now I can return that and keep rolling with the G8X.
Thanks again, you were a huge help and its much appreciated!
Brando81 said:
So interesting news....I obviously didn't try making calls last night at 2AM, but apparently reflashing with the same exact 850QM software I used before seems to have fixed the issue. Maybe changing the model to 820 and then changing back to 850? Who knows? That's like the 3rd thing that happened with this process that I have no idea why it started working differently, but hey I'm happy and back up and rolling.
Thanks for all of your help, Surge! I was truly at wits end, and had already ordered a new phone, even though I'm happy with the G8X overall. Now I can return that and keep rolling with the G8X.
Thanks again, you were a huge help and its much appreciated!
Click to expand...
Click to collapse
Glad you got it working!I run in to a same similar issue with a Note 8 I have,and it being an international unlocked AT&T phone.No calls would work period,and swapped firmware over and over and finally started to give up and flashed the stock firmware back and it worked.It's something that hangs in Android with the changed IMS settings that are sent to the device.It's all odd at the moment with carriers,but nothing surprises me anymore..lol..
"G850QM30c_00_NAO_US_OP_0224.kdz" Is a BPT kdz and is not truly open even though it says, "NAO US OP".
I got the phone working by using "G850QM30b_00_NAO_US_OP_0902.kdz", the "real" open kdz. Everything worked fine after that.
BereiBlue said:
"G850QM30c_00_NAO_US_OP_0224.kdz" Is a BPT kdz and is not truly open even though it says, "NAO US OP".
I got the phone working by using "G850QM30b_00_NAO_US_OP_0902.kdz", the "real" open kdz. Everything worked fine after that.
Click to expand...
Click to collapse
Can someone please explain to me the different versions of the firmware
BPT and CCT and USA
are they really different
there is also the 40A now which is android 12?
G850QM40b_00_NAO_US_OP_0805.kdz
https://lg-firmwares.com/lg-lmg850qm-firmwares/
most of these firmwares are are 4GB in size, the newer KDZ are just 1GB
G850QM30c_00_NAO_US_OP_0224.kdz
My ATT G8X just got the update to G850QM40A which is android 12
how is android 12? do the firehose , root and bootloader unlock apply
doctorman said:
Can someone please explain to me the different versions of the firmware
BPT and CCT and USA
are they really different
there is also the 40A now which is android 12?
G850QM40b_00_NAO_US_OP_0805.kdz
https://lg-firmwares.com/lg-lmg850qm-firmwares/
most of these firmwares are are 4GB in size, the newer KDZ are just 1GB
G850QM30c_00_NAO_US_OP_0224.kdz
My ATT G8X just got the update to G850QM40A which is android 12
how is android 12? do the firehose , root and bootloader unlock apply
Click to expand...
Click to collapse
Yes,the firehose will always work regardless of the Android version.Also from what I have read,yes the same procedures work for A12 for root and unlocking the bootloader.As always,backup your firmware before rooting and attempting to unlock the bootloader just in case something goes wrong!
Surgemanxx said:
Yes,the firehose will always work regardless of the Android version.Also from what I have read,yes the same procedures work for A12 for root and unlocking the bootloader.As always,backup your firmware before rooting and attempting to unlock the bootloader just in case something goes wrong!
Click to expand...
Click to collapse
Do you think there is any point to crossflash
USA G850QM40b_00_NAO_US_OP_0805.kdz
on ATT G8X to be used on Tmobile network? I can do the VOLTE patch after rooting it . is it worth the headache?
doctorman said:
Do you think there is any point to crossflash
USA G850QM40b_00_NAO_US_OP_0805.kdz
on ATT G8X to be used on Tmobile network? I can do the VOLTE patch after rooting it . is it worth the headache?
Click to expand...
Click to collapse
QM versions are international unlocked versions of the firmware.My branded AT&T G8x had issues sending text messages with T-Mobile service I do remember.I crossflahed my variant with the QM version and it worked flawless after that.But,I do have a full backup copy of the AT&T firmware if I ever decide to put it back.
Surgemanxx said:
QM versions are international unlocked versions of the firmware.My branded AT&T G8x had issues sending text messages with T-Mobile service I do remember.I crossflahed my variant with the QM version and it worked flawless after that.But,I do have a full backup copy of the AT&T firmware if I ever decide to put it back.
Click to expand...
Click to collapse
May I ask how did you back it up?
also if I have androind 11 ATT can I crossflash to android 12? that should not be an issue right?
the partitioning is not changed in the update?

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