Database Develop

[Q] Optimus black stuck on firmware update screen

The story so far...
Bought a new Optimus Black and gave it to my girlfriend for her birthday a couple of days ago. After playing with it for about an hour she put it down, I picked it up and decided to have a tinker. I installed Cyanogen mod 3.5.1 after rooting it with Gingerbreak. So far so good but I didn't really like the look of the ROM and the absence of a Market seemed like hassle so I used ClockworkMod to restore the backed up stock ROM.
It's still working fine but now I see there is an official update from inside the phone. I presume it's the upgrade to Android 2.3 so run it and reboot the phone. That's when it all goes wrong. I'm now stuck in the CWM recovery screen. I try all the options, following any online guides I can find that were supposed to have worked for people. I try restoring the backup, restoring cyanogen, clearing the cache, dalvik, everything but nothing happens and I keep booting back into the CWM recovery screen.
Next day I try the LGUnitedMobileDriver and the phone recovery option but despite trying several times I can get no further. A friend tried to use Odin to restore it but got no success. Finally, we tried restoring with a KDZ file with
KDZ_FW_UPD_EN, Windows Enabler and LG B2CTool and now the phone got stuck in yet another loop - a black screen with 'updating firmware'. The LEDs flash for a minute and it reboots and does the same again.
What's more, the phone will now no longer charge or turn on without being connected to the mains.
What are my options here?

Follow the tutorial given below.
http://forum.xda-developers.com/showthread.php?t=1275315

Thanks, but I've already tried that and it doesn't work. I'm forever stuck in the firmware update screen.

pickarooney said:
Thanks, but I've already tried that and it doesn't work. I'm forever stuck in the firmware update screen.
Click to expand...
Click to collapse
have you tried the CS_EMERGENCY option in R&D TOOLS? Wait I'll find the link..
Here >>> http://forum.xda-developers.com/showpost.php?p=18841596&postcount=8
http://forum.xda-developers.com/showpost.php?p=18740082&postcount=45
The CS_EMERGENCY is the only thing worked, he used a german V10A ROM. If you managed to unbrick it, you can flash it again with your desired KDZ, or use CS_EMERGENCY and flash directly your desired KDZ. TRIAL AND ERROR.

Emergency c-section... nope, I will try that now!

Said that it will get stuck at 4% but it is still flashing. Just wait for the phone to reboot by itself.

It just crashes with a fatal error as soon as it gets to the second tab (downloading) on both PCs I tried it on. I tried several KDZ files with the same result.

Does anyone know if it's possible to physically change the ROM on this phone and if it would be worth trying that before binning the thing?

pickarooney said:
Does anyone know if it's possible to physically change the ROM on this phone and if it would be worth trying that before binning the thing?
Click to expand...
Click to collapse
Does it have warranty? Why not RMA it, I think it has a hardware problem now since you mentioned it doesn't charge anymore. Also, have you tried a different USB cable?

The warranty gets voided as soon as you root or mod a phone and it's probably as expensive to get it fixed outside of warranty as to buy a new one.

pickarooney said:
The warranty gets voided as soon as you root or mod a phone and it's probably as expensive to get it fixed outside of warranty as to buy a new one.
Click to expand...
Click to collapse
Most of the time they change the board right away if it can't boot (as many as I've read) board was changed and none just revived the OS. So they won't know you rooted it. Just specify that they should contact you first before making any changes.

gabwerkz said:
Most of the time they change the board right away if it can't boot (as many as I've read) board was changed and none just revived the OS. So they won't know you rooted it. Just specify that they should contact you first before making any changes.
Click to expand...
Click to collapse
true.. you can just tell them that you received an update and upon getting it the phone wont boot anymore.. just dont tell them that you rooted it or tinkered it in any way.. i'm sure you'll be able to get your warranty that way..

darkzorn said:
true.. you can just tell them that you received an update and upon getting it the phone wont boot anymore.. just dont tell them that you rooted it or tinkered it in any way.. i'm sure you'll be able to get your warranty that way..
Click to expand...
Click to collapse
Well, that's exactly what I did so we'll see in two weeks if I get a fixed phone free of charge

pickarooney said:
Well, that's exactly what I did so we'll see in two weeks if I get a fixed phone free of charge
Click to expand...
Click to collapse
Fingers crossed for you !!!

pickarooney said:
Well, that's exactly what I did so we'll see in two weeks if I get a fixed phone free of charge
Click to expand...
Click to collapse
IT will mostly work..Good luck though and please do reply here and let us know if it worked..

Emergency calls only

For a couple of days now I've had 'Emergency Call Only' status on my phone, i.e. can't make calls. Internet is working fine (with or without WIFI).
It is nothing to do with the SIM card, the SIM card works fine in another phone and I've tried a different SIM card in my S5830i which doesn't work either.
I have the normal stock Android ROM installed and have never flashed any other ROM. The only thing I have done is rooted my phone and everything was still working fine for a while after this.
The origin of the problem seemed to coincide with my internal becoming full and as a result user and system apps crashing all over the place on the phone.
What's worse, if I dial *#06#, I get "IMEI ", i.e. nothing just blank!
Please advise, I've only had this phone a few weeks, I'm worried this is irreversible!

Did you put your phone on CDMA only (in mobile data settings), by any mistake?
If not, you can always try flashing the stock ROM again (using Odin), resetting all settings.

GermainZ said:
Did you put your phone on CDMA only (in mobile data settings), by any mistake?
If not, you can always try flashing the stock ROM again (using Odin), resetting all settings.
Click to expand...
Click to collapse
The short answer is no, the long one is that I have no such options under the normal menus in GB 2.3.6, but I can get to these settings by accessing testing mode. My current setting is "WCDMA preferred" and I have never changed this before.
Well as my phone is under warranty I was thinking of unrooting it, doing a factory reset and if its still not working, taking it back to the shop and pleading ignorance before I try flashing it!

Unrooting your phone and taking it back to the shop sounds like the best way. If they say the warranty's void because you rooted it or flashed a firmware (ODIN counter) there's something you could try instead:
http://forum.xda-developers.com/showthread.php?t=1264021
http://forum.xda-developers.com/showthread.php?t=1308546

adrian816 said:
Unrooting your phone and taking it back to the shop sounds like the best way. If they say the warranty's void because you rooted it or flashed a firmware (ODIN counter) there's something you could try instead:
http://forum.xda-developers.com/showthread.php?t=1264021
http://forum.xda-developers.com/showthread.php?t=1308546
Click to expand...
Click to collapse
Ok thanks for that, yeah I took the phone back to the shop today, they've sent it off to their engineers, I'll post again when I get it back, they said a couple of weeks. I've never flashed it with anything so the ODIN counter should be at 0 and I unrooted it and done a factory reset on it before taking it back so hopefully they won't realize or can't realize it previously was rooted.
As far as I'm concerned the phone isn't even fit for purpose unrooted as the 200MB internal storage space is almost insufficient for updates to system apps, let alone any user apps, which is why I rooted it in the first place, to get full apps2sd functionality!

makeyourself said:
Ok thanks for that, yeah I took the phone back to the shop today, they've sent it off to their engineers, I'll post again when I get it back, they said a couple of weeks.
Click to expand...
Click to collapse
Got the phone back today, well a phone anyway. Apparently they couldn't repair the old one, so they replaced it with a new one.
What precautionary steps can I take to make sure this doesn't happen again. Is backing up my /efs folder enough with regards to securing IMEI information?
Also, I was thinking I should install some decent anti-virus software, anything else I should be doing to secure / protect a rooted Android?

[Q] SIM stopped working in my LG Optimus 4X HD

I'm new to this.
A totally random event. I restarted my phone one evening last week and it show no sim. Using the LG support tool I had multiple failed attempts to update the software. Then as sudden a the sim registration had disappeared it came back to life. All fine until again the phone just stopped registering the sim.
Phone is secondhand. And I have tried numerous times removing, cleaning and replacing the SIM. Tried another active SIM on the same network with no luck.
I've never had a 'bricked' phone so don't know what to expect but I imagine the phone wouldn't even boot up!
I have now rooted the phone and installed CWM recovery, still no joy and have in desperation performed a hard reset. Nada!
Software is V10h. I read something about EFS folder to backup but all I could find is a text file. The IMEI is not registering on the phone. It could be a very simple answer but currently I'm stumped. I have requested a replacement SIM but have little hope this will resolve the issue.
I hope someone has an answer...

mvz3k said:
I'm new to this.
A totally random event. I restarted my phone one evening last week and it show no sim. Using the LG support tool I had multiple failed attempts to update the software. Then as sudden a the sim registration had disappeared it came back to life. All fine until again the phone just stopped registering the sim.
Phone is secondhand. And I have tried numerous times removing, cleaning and replacing the SIM. Tried another active SIM on the same network with no luck.
I've never had a 'bricked' phone so don't know what to expect but I imagine the phone wouldn't even boot up!
I have now rooted the phone and installed CWM recovery, still no joy and have in desperation performed a hard reset. Nada!
Software is V10h. I read something about EFS folder to backup but all I could find is a text file. The IMEI is not registering on the phone. It could be a very simple answer but currently I'm stumped. I have requested a replacement SIM but have little hope this will resolve the issue.
I hope someone has an answer...
Click to expand...
Click to collapse
re-flash 10h or 20a kdz. look for various tutorials on the forum. (btw, your phone isnt registring on network cuz your imei isnt being read, probably due to failed upgrade process
(or some other bug). it should be fixable though)
also, replacement sim wont help. its your cell phone that's faulty, either hardware or software, not the SIM itself
also, i'm not sure how it goes if your IMEI is blacklisted by your cell phone company - is it possible the phone was stolen? perhaps the original owner reported it stolen to his carrier and they blocked the IMEI?

Flying_Bear said:
also, i'm not sure how it goes if your IMEI is blacklisted by your cell phone company - is it possible the phone was stolen? perhaps the original owner reported it stolen to his carrier and they blocked the IMEI?
Click to expand...
Click to collapse
If the IMEI is blacklisted, the phone will still show it correctly in the settings and the carrier will just block based on this. This is why changing an IMEI is illegal in most countries and why discussions on how to change it aren't allowed on XDA as it can get the site in serious trouble.

mvz3k said:
I'm new to this.
A totally random event. I restarted my phone one evening last week and it show no sim. Using the LG support tool I had multiple failed attempts to update the software. Then as sudden a the sim registration had disappeared it came back to life. All fine until again the phone just stopped registering the sim.
Phone is secondhand. And I have tried numerous times removing, cleaning and replacing the SIM. Tried another active SIM on the same network with no luck.
I've never had a 'bricked' phone so don't know what to expect but I imagine the phone wouldn't even boot up!
I have now rooted the phone and installed CWM recovery, still no joy and have in desperation performed a hard reset. Nada!
Software is V10h. I read something about EFS folder to backup but all I could find is a text file. The IMEI is not registering on the phone. It could be a very simple answer but currently I'm stumped. I have requested a replacement SIM but have little hope this will resolve the issue.
I hope someone has an answer...
Click to expand...
Click to collapse
check if ur gapps are fine. reinstall all gapps. maybe u deleted some app that u shouldnt. happened to me too 2 weeks ago and i had no sim so signal , i couldnt see my imei, etc. if that doesnt help , then reinstall ur rom or install a custom one. I mean maybe u must be sure to check if u deleted some system app that u shouldnt. Since u have double checked with other sim , if its not from an app , then the above thread is right, the owner could have reported the phone stolen

kessaras said:
if its not from an app , then the above thread is right, the owner could have reported the phone stolen
Click to expand...
Click to collapse
I have had this phone since June and this only happened last week.

Flying_Bear said:
re-flash 10h or 20a kdz. look for various tutorials on the forum. (btw, your phone isnt registring on network cuz your imei isnt being read, probably due to failed upgrade process
(or some other bug). it should be fixable though)
also, replacement sim wont help. its your cell phone that's faulty, either hardware or software, not the SIM itself
also, i'm not sure how it goes if your IMEI is blacklisted by your cell phone company - is it possible the phone was stolen? perhaps the original owner reported it stolen to his carrier and they blocked the IMEI?
Click to expand...
Click to collapse
Okay, strange happenings with this phone. I've not hd the opportunity to re-flash as suggested but by the by I put my SIM back in and it worked fine. IMEI registered in the phone settings and all was as it should be. Until again first the signal disappeared and when I restarted the SIM did not register. Has anyone experienced this before?

mvz3k said:
Okay, strange happenings with this phone. I've not hd the opportunity to re-flash as suggested but by the by I put my SIM back in and it worked fine. IMEI registered in the phone settings and all was as it should be. Until again first the signal disappeared and when I restarted the SIM did not register. Has anyone experienced this before?
Click to expand...
Click to collapse
There have been some problems with this, but normally due the the RIL on CyanogenMod-based ROMs. I would suggest that you find the time to either reflash v10h or upgrade to v20A/B/C (as appropriate for your region) and see if that fixes it for you.

you still havent mentioned anything about gapps. this means you checked and you are sure that they are fine ??

So I have tried flashing software V20A using the LG software updater and now all I get is the phone booting into 'S/W Upgrade please wait while upgrading'
I can get into any other screen, despite pressing all combination of buttons together.
I have attempted reflashing back to V10H and try and get it back to how I had the phone. No luck there
And also tried again with V20A. No joy.
Is there anything else I could try?

mvz3k said:
So I have tried flashing software V20A using the LG software updater and now all I get is the phone booting into 'S/W Upgrade please wait while upgrading'
I can get into any other screen, despite pressing all combination of buttons together.
I have attempted reflashing back to V10H and try and get it back to how I had the phone. No luck there
And also tried again with V20A. No joy.
Is there anything else I could try?
Click to expand...
Click to collapse
Yes, Follow the instructions to flash a v20x KDZ EXACTLY and look at your drivers.

SimonTS said:
Yes, Follow the instructions to flash a v20x KDZ EXACTLY and look at your drivers.
Click to expand...
Click to collapse
Which version of instructions is definitive? I've tried multiple methods with battery in and out. Are you referring to the LG drivers?
Thanks for responding.

mvz3k said:
Which version of instructions is definitive? I've tried multiple methods with battery in and out. Are you referring to the LG drivers?
Click to expand...
Click to collapse
I have always found this thread [TUTORIAL]Update firmware through flashing the kdz files( With Picture )Step by Step works perfectly every time.

Got the same problem here, running cm for a month with no probs, restarted phone and sim not recognized. Installed a backup of the original rom and everything ok. Reflashed kdz's and did a fresh install of cm and still no sim. Am now on Zaiben which is ok but takes about 15 mins to recognize sim?

fastpottsy said:
Got the same problem here, running cm for a month with no probs, restarted phone and sim not recognized. Installed a backup of the original rom and everything ok. Reflashed kdz's and did a fresh install of cm and still no sim. Am now on Zaiben which is ok but takes about 15 mins to recognize sim?
Click to expand...
Click to collapse
Hello, did you solved this issue?
I´m struggling with it now.

ssefrgr said:
Hello, did you solved this issue?
I´m struggling with it now.
Click to expand...
Click to collapse
hi, sorry but no, i think it was probably hardware related as it would no longer allow me to flash kdz's.
good luck.

fastpottsy said:
hi, sorry but no, i think it was probably hardware related as it would no longer allow me to flash kdz's.
good luck.
Click to expand...
Click to collapse
Hi again. I ordered one of these. Lets test it. Last resort
http://forum.xda-developers.com/showthread.php?t=2780274&page=165

Fingerprint sensor error ?

Hi I'm trying to set up my lock screen whit finger print but no matter homw many time i try i keep getting an error has occurred whit the fingerprint sensor if this messages appears repeatedly restart you phone i restarted the phone multiple times and same problem tried diffrent roms same problem any one else has this problem ?

COCODRILO45 said:
Hi I'm trying to set up my lock screen whit finger print but no matter homw many time i try i keep getting an error has occurred whit the fingerprint sensor if this messages appears repeatedly restart you phone i restarted the phone multiple times and same problem tried diffrent roms same problem any one else has this problem ?
Click to expand...
Click to collapse
Interesting, this happened to me as well yesterday along with some incredible lag with keyboard and scrolling pages. Like the phone is doing something, ive Odin flashed stock fw 4 times with full wipes. seems something just suddenly defected my phone..
EDIT: BTW this happened after trying to flash a custom rom to my phone, phone was running great when i got it.

i got it working i had to flash back to stock via odin that's the only way it works for me as soon as i flash a custom rom it will stop working if you figure out how to get it working whit a custom rom let me now pls

COCODRILO45 said:
i got it working i had to flash back to stock via odin that's the only way it works for me as soon as i flash a custom rom it will stop working if you figure out how to get it working whit a custom rom let me now pls
Click to expand...
Click to collapse
Really? flashing back to stock worked for you? hmm wonder if my stock fw from sammy is damaged, but usually if it was it wouldn't flash via Odin it fail.

yea that worked for me im about to flash it back to stock again i just cant get it to work on any rom I keep getting that error i guess ill go stock rooted for now

COCODRILO45 said:
yea that worked for me im about to flash it back to stock again i just cant get it to work on any rom I keep getting that error i guess ill go stock rooted for now
Click to expand...
Click to collapse
Now when you got that fingerprint error, did you experience and hard core lag in scrolling or in the keyboard? like every 3 seconds it pause like it's doing something?

not really im using nova launcher and for keyboard swiftkey running preety smooth im on firekat rom

Having the same issue with Hyperdrive. Restore my stock rooted backup and it works fine. Really looking forward to an answer on this one.

Must setup first time before rooting and flashing roms. This has been discussed in other threads.

Did that, still didn't work.

Diablohtr said:
Having the same issue with Hyperdrive. Restore my stock rooted backup and it works fine. Really looking forward to an answer on this one.
Click to expand...
Click to collapse
Is it just Hyperdrive or have you tried one of the other ROMs? I am Dynamic Kat and do not have the issue although other people do, ones that did not setup before flashing that ROM.

keitht said:
Is it just Hyperdrive or have you tried one of the other ROMs? I am Dynamic Kat and do not have the issue although other people do, ones that did not setup before flashing that ROM.
Click to expand...
Click to collapse
Haven't tried any others yet. Going to wait it out a few days and hopefully we will have a solution.

COCODRILO45 said:
Hi I'm trying to set up my lock screen whit finger print but no matter homw many time i try i keep getting an error has occurred whit the fingerprint sensor if this messages appears repeatedly restart you phone i restarted the phone multiple times and same problem tried diffrent roms same problem any one else has this problem ?
Click to expand...
Click to collapse
I have your same problem but even worse, not going to solve it stock still gives the same result I am losing faith

CapitanFantasma said:
I have your same problem but even worse, not going to solve it stock still gives the same result I am losing faith
Click to expand...
Click to collapse
I tried using odin, I was on NIH firmware with no luck... and then flashed odin with NJ7 with no luck from that, I must of flashed the firmwares over 8 times,
I went and replaced my white note 4 at a corporate near me, with a black note 4.. no one had them in stock, dialing 611 was no help, they said since u bought it at a store, I had to go there, I found a corp store that had 2 left, I rushed over cause they don't hold it for anyone. employee wanted to charge a $50 restocking fee, I told them the phone is defective, and the manager override the sale..

I am having the same problem of the fingerprint scanner not working after flashing a custom ROM. I followed everything to a T & it didn't install (& yes, it is for my N4). I went back to stock using Odin, several times & have not resolved it yet. I do not want to take it back but I do like having the fingerprint scanner. Luckily, I have another N4 cause I bought 2 when they came out cause I planned on trying to turn a profit on 1 of them, but I'll be damned if everybody didn't make it easy as hell for anyone to get one. I guess I can use the 1 that doesn't work right for flashing & playing around on & then when I find "THE" ROM that I'm happiest with, I can flash it on the good 1. IDK. This is BS though. Somebody has to know how to get it back working right. I know that people that helped create this phablet, are members of this site, so I hope that they or someone else that has fixed this problem replies to our question. I flashed this ROM... http://forum.xda-developers.com/note-4-sprint/development/rom-alpha-semper-fi-t2926682 & the fingerprint scanner still worked, but after flashing this ROM... http://forum.xda-developers.com/note-4/snapdragon-dev/25-october-2014-n4-echoe-rom-1-t2917941 it no longer worked & hasn't since. I am going back to stock (again) & hoping this will work. I'll update if it works.

See this post/thread, it worked for me....
http://forum.xda-developers.com/showpost.php?p=56896357&postcount=85
http://forum.xda-developers.com/not...ure-fingerprint-scanner-t2919478/post56896357

Looks like these are for T-Mobile. What about Sprint? N910P
Sent from my SM-N910P

JoeBear1975 said:
I am having the same problem of the fingerprint scanner not working after flashing a custom ROM. I followed everything to a T & it didn't install (& yes, it is for my N4). I went back to stock using Odin, several times & have not resolved it yet. I do not want to take it back but I do like having the fingerprint scanner. Luckily, I have another N4 cause I bought 2 when they came out cause I planned on trying to turn a profit on 1 of them, but I'll be damned if everybody didn't make it easy as hell for anyone to get one. I guess I can use the 1 that doesn't work right for flashing & playing around on & then when I find "THE" ROM that I'm happiest with, I can flash it on the good 1. IDK. This is BS though. Somebody has to know how to get it back working right. I know that people that helped create this phablet, are members of this site, so I hope that they or someone else that has fixed this problem replies to our question. I flashed this ROM... http://forum.xda-developers.com/note-4-sprint/development/rom-alpha-semper-fi-t2926682 & the fingerprint scanner still worked, but after flashing this ROM... http://forum.xda-developers.com/note-4/snapdragon-dev/25-october-2014-n4-echoe-rom-1-t2917941 it no longer worked & hasn't since. I am going back to stock (again) & hoping this will work. I'll update if it works.
Click to expand...
Click to collapse
sorry dude, I don't know what it was, but when it happened to me, I was on NIH, and had the fingerprint saved, i tried everything, and when i deleted the saved fingerprint, it didn't want to work, nothing worked, i tried for 2 days searching and trying out my own stock odex roms and the firmware, it did not work.. sucks i know...
i had to return it to tmobile corporate store, if u have insurance on it, just play stupid and return it, if u have someone you know on tmobile, just let them put it on their account with put the $8 insurance, have them wait 1 week, call 611 and just say the fingerprint sensor went bad, and just pay $5 and have a replacement sent out,
lucky for me it happened less than a week for me, and went to a tmobile corporate store and they gave me a new phone in a box, but a replacement is still good it is not a refurbished phone...

I got it figured out & will post a file once it finally uploads, but in the mean time. If you have registered at SamMobile.com go there, click on the firmware tab, scroll halfway down to where it says FIRMWARE on the left side of the column & search device here on the right side. Type in your model number & it will show up right below the search area. Click & download the newest file. Here is the link for the Firmware site with search field filled in with N910 http://www.sammobile.com/firmwares/ While that is downloading, do a factory reset on your phone, DO NOT backup your info, you will need to restart it, but it's worth it. Once the reset is done, your phone will reboot, don't worry about going into setup, just turn the phone off & go into download mode (while phone is completely off, hold, in this order, VOLUME DOWN, HOME & POWER, press VOLUME UP when prompted. Connect your phone to computer. After the file downloads, open Odin (I'm assuming you already have Odin installed on your computer, if not you can find the link here http://odindownload.com/ I didn't have luck with Odin 3.09, but the 3.07 version works great. Your Firmware file should be done downloading by now, if it is, put it in your Note 4 folder (or whatever folder you have designated for your N910-) & extract it to there. Open Odin & click on the PDA button (& DO NOT CLICK ANYTHING ELSE), click on the file you just extracted & then click Start. Once that loads, your phone will reboot & be just like it was from the factory. Hope this helps everybody. Once the file uploads to my Dropbox, I'll post it on here to save you some time.
Here's the link for N910P https://www.dropbox.com/s/f5f63rb4d8ybsm3/N910PVPU1ANK2_N910PSPT1ANK2_XAS.zip?dl=0
If this was helpful, please hit thanks.

mdiaz33685 said:
sorry dude, I don't know what it was, but when it happened to me, I was on NIH, and had the fingerprint saved, i tried everything, and when i deleted the saved fingerprint, it didn't want to work, nothing worked, i tried for 2 days searching and trying out my own stock odex roms and the firmware, it did not work.. sucks i know...
i had to return it to tmobile corporate store, if u have insurance on it, just play stupid and return it, if u have someone you know on tmobile, just let them put it on their account with put the $8 insurance, have them wait 1 week, call 611 and just say the fingerprint sensor went bad, and just pay $5 and have a replacement sent out,
lucky for me it happened less than a week for me, and went to a tmobile corporate store and they gave me a new phone in a box, but a replacement is still good it is not a refurbished phone...
Click to expand...
Click to collapse
I stuck with it & fianlly got it figured out. What a pain in the a$$ that was, lol

Unique Soft Brick??? Any ideas?

I purchased the H811 off ebay last week because I am finally sick of my old Note 5 with no service at home. The G4 did great until I decided to flash it. The phone was on H81120i.
No big deal unlocking bootloader or installing TWRP. I flashed Lineage OS 14.1. About a minute after booting up, the phone got the error Camera stopped working. After checking more stuff on the device, nothing seems to work - i.e. - The accelerometer, speakers, microphone, flashlight, etc are dead. I installed a sensor test app and it doesn't detect any of the sensors.
After that, I downloaded LGUP and the stock KDZ file to flash back to phone hoping to fix it. Unfortunately, LGUP doesn't recognize the phone. It says unknown model but shows the com port, h81120i on the right hand side. I also tried LG FlashTool to see if that would work but it crashes about 26% into the it.
I have searched the forums up and down and have googled the crap out of this. I did find a thread from last month with a very similar issue a moment ago, https://forum.xda-developers.com/tmobile-g4/help/camera-stopped-audio-flashing-lg-g4-t3620516, and perhaps I should post in that thread, but my issue is that LG Bridge gives me an error stating it can't detect the software version.
If I were using Samsung, I don't think I would have this problem because I have unbricked several Samsung devices. The issue here is I am new to LG and have no idea if files are corrupt, if hardware was screwed, or what the situation is. I would hate to think that it was a $100 wasted.
Any help would be greatly appreciated.

x3n0n907 said:
I purchased the H811 off ebay last week because I am finally sick of my old Note 5 with no service at home. The G4 did great until I decided to flash it. The phone was on H81120i.
No big deal unlocking bootloader or installing TWRP. I flashed Lineage OS 14.1. About a minute after booting up, the phone got the error Camera stopped working. After checking more stuff on the device, nothing seems to work - i.e. - The accelerometer, speakers, microphone, flashlight, etc are dead. I installed a sensor test app and it doesn't detect any of the sensors.
After that, I downloaded LGUP and the stock KDZ file to flash back to phone hoping to fix it. Unfortunately, LGUP doesn't recognize the phone. It says unknown model but shows the com port, h81120i on the right hand side. I also tried LG FlashTool to see if that would work but it crashes about 26% into the it.
I have searched the forums up and down and have googled the crap out of this. I did find a thread from last month with a very similar issue a moment ago, https://forum.xda-developers.com/tmobile-g4/help/camera-stopped-audio-flashing-lg-g4-t3620516, and perhaps I should post in that thread, but my issue is that LG Bridge gives me an error stating it can't detect the software version.
If I were using Samsung, I don't think I would have this problem because I have unbricked several Samsung devices. The issue here is I am new to LG and have no idea if files are corrupt, if hardware was screwed, or what the situation is. I would hate to think that it was a $100 wasted.
Any help would be greatly appreciated.
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maybe you got a frankenphone .. a supposely H811 and its not .. why not open it and see the actual motherboard and see wich variant you really have .seems like its not a h811 or try uppercut LGUP. see what it finds and downloads.

raptorddd said:
maybe you got a frankenphone .. a supposely H811 and its not .. why not open it and see the actual motherboard and see wich variant you really have .seems like its not a h811 or try uppercut LGUP. see what it finds and downloads.
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Uppercut found nothing... I opened the phone and found this though... EAX6658501_H810_MAIN_1.0
Of course, the tag on the inside of battery compartment says H811 with a date of 02/2016. Would it be a refurb or what? Anyway, I may be on the right track now.

x3n0n907 said:
Uppercut found nothing... I opened the phone and found this though... EAX6658501_H810_MAIN_1.0
Of course, the tag on the inside of battery compartment says H811 with a date of 02/2016. Would it be a refurb or what? Anyway, I may be on the right track now.
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maybe yes .. cover h811 and so software easy to edit.. but the only way is that take the motherboard and read the variant.
h810 is att?

I checked out the AT&T forum and found nothing other than stock that, obvious under my current situation, I can't flash because lgup with uppercut nor lg flash tools can flash.
LGUP gives an error code in the log file. PACKET_ERROR code = 1460
The phone internet still works. It has downloaded an update from t-mobile that's 460+MB that I can't install because I'm rooted with TWRP. Is it possible to update the phone with adb and TWRP? If I could find stock recovery, I would flash that and using autoprime's bootloader flash it back, even remove root if the update may revive the device.

After a week, a thought occurred to me and i tried it. I backed up a working h811 ( minus efs partition) with twrp with 20o firmware to an sd card then restored that version to this phone. I immediately wiped and flashed G4 20o with root zip file. It unbricked the phone and I'm currently using it.
Thanks raptorddd for replying and helping me. It seems that somewhere in the flash process something was corrupted and this fixed it.

x3n0n907 said:
After a week, a thought occurred to me and i tried it. I backed up a working h811 ( minus efs partition) with twrp with 20o firmware to an sd card then restored that version to this phone. I immediately wiped and flashed G4 20o with root zip file. It unbricked the phone and I'm currently using it.
Thanks raptorddd for replying and helping me. It seems that somewhere in the flash process something was corrupted and this fixed it.
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youre welcomed but then phone is H811? or H810 i know that what ever the motherboard says thats your variant. am glad you have back up and running. :good:

It is crazy because the board said 810 but it had h81120i official when i got it. It worked but i have always used custom roms. Oh well, I'm going to stay stock with root. Just need to debloat now.