Develop Bugs

[Q] How to unbrick my dead boot Desire HD

Hey Geeks,
I need some help and I bet that you could help me!
I ve used the search engine to not post anything someone did before. But there was nothing that could help me.
First I ll describe you what I ve done to brick my Desire HD:
My phone is rooted, S-OFF, ENG S-OFF with CM 7. After installing the new ROM I wasn`t able to install anything from the amrket. So I ve looked up for the reason and tried different things to sovle it. I ve read somewhere that it could help to add a partition to my SD-card. So I ve used the ROM Manager to format my sd card and create a partition.
ROM Manager asked me if I am sure bla bla... you know what I mean. After giving ROM Manager su-permission my phone shuts down. From there on nothing happened. (and still no patition on my sd card).
It`s not reacting to the power button, to the volume-down + power button nor is blinking my LED when I connect it to the USB-Port. Seems like it`s out of energy (but my akku was charged before I ve stzarted with the partition of my sd card).
I ve tried to put out the akku for several minutes. No reaction.
Removing SD-Card before pushing the power button: No reaction
Plug in to charge battery without hitting any button... some hours later: still no reaction
Formating SD-Card: No reaction
Then I ve tried to install the RUU 1.32., saved it on my sd-card, plugged phone in to start... my pc is not detecting my phone.
And now I am helpless

So it doesn't boot at all? Because if it doesn't, you are pretty much screwed...no boot -> no access -> no fix, but I don't believe that you can screw your phone up that badly by partitioning your sd-card.
Unless someone has a fix for this (and the problem doesn't solve itself somehow), your best bet is to send your phone to HTC for a repair, they probably won't charge you anything if it is still covered under warranty, since they can't really check for any modifications if it doesn't boot. It is probably a hardware problem any way.

frosty_ice said:
So it doesn't boot at all?
Click to expand...
Click to collapse
Nope, nothing happened.
frosty_ice said:
it is still covered under warranty, since they can't really check for any modifications if it doesn't boot. It is probably a hardware problem any way.
Click to expand...
Click to collapse
THIS makes me happy, but I would prefer any other solution.

Sleipnir1985 said:
Nope, nothing happened.
THIS makes me happy, but I would prefer any other solution.
Click to expand...
Click to collapse
The fact that it doesn't boot at all is a good thing for send it back for warranty purpose. But if you formated your sd-card, you lost root anyway. You have to make a backup of your SD-Card before you format/partition it, and then copy everything back.
And your initial issue was maybe due to an outdated version of Gapps...

why should he loose root if he formats his sd-card? you have root even without an sd-card.
if nothing helps to get your DHD back to life, you probably have to send it to HTC. but I think it's covered by warranty since it's (probably) a hardware fault.
btw, i think i've seen a thread like this somewhere here yesterday... i'll have a look and post a link if i find something
Edit: found it! http://forum.xda-developers.com/showthread.php?t=1013582&page=2
look at page 2. there are some people with the same problem, but there is no solution yet.

But you do have CWM-Recovery on it don't you?
And if, can you get into Recovery?
Had similar Problems, once...
But my phone only showed the white HTC Logo and that was it....
What i did was the following... flashed Revory via Fasbootload from Computer...
Next, i formatted my sd card via computer and copied a new Rom.zip onto it.
In my Case, leedroid.
Next, i just flashed it and it happened to work again, luckily.

he can't even boot into the bootloader.

Flussen said:
why should he loose root if he formats his sd-card? you have root even without an sd-card.
if nothing helps to get your DHD back to life, you probably have to send it to HTC. but I think it's covered by warranty since it's (probably) a hardware fault.
btw, i think i've seen a thread like this somewhere here yesterday... i'll have a look and post a link if i find something
Edit: found it! http://forum.xda-developers.com/showthread.php?t=1013582&page=2
look at page 2. there are some people with the same problem, but there is no solution yet.
Click to expand...
Click to collapse
Hardware fault or not, rooting voids warranty. Let's hope that they can't inspect the internal memory.
Anyway, is the phone reacting to connecting to a proper charger (try to leave it plugged in for a couple of hours even if the LED doesn't light up)? The other thing you could try is to find a friend with a DHD and swap the batteries just to try if somehow you managed to kill your battery.

hi Sleipnir1985,
go back to your shop,
when did you buy it? they must take it for service, or they give you new one.
it is only best solution in this case
if you take battery out for 5! min, then plug it in and hold volume down then push power button - nothing happened, this is it, the end...
cheers/

tkolev said:
Hardware fault or not, rooting voids warranty. Let's hope that they can't inspect the internal memory.
Click to expand...
Click to collapse
yes, but HTC replaces your phone if it's a hardware and not a software fault. a friend of mine got his DHD replaced with eng hboot, radio S-OFF, custom rom and so on. and lots of people here on XDA also.

Here`s another mate with the same problem.
I am going to give my HTC to the shop this evening. Push your thumbs that I ll get a new one

here is an other brick htc hd g10
cause by rom mananger.

hzjinjie said:
cause by rom mananger.
Click to expand...
Click to collapse
That was a bug with an older version of ClockWorkMod Recovery - http://forum.xda-developers.com/showthread.php?t=1043160 and has now been fixed.

Hi all,
My DHD is bricked (I think).
When I try to access to the recovery the phone vibrate 3 times and nothing on the screen
When I send : "adb devices" it replies HT0xxxxxxxxxxx recovery.
The HBOOT driver is installed and in the peripheral manager my DHD appears : android USB devices
What can I do ??
Help me please and sorry for my bad English !!

Welcome to XDA.
Please start a new thread on this issue.

this Problem same my DHD i'dont know my DHD die or not .
If You repair your DHD ok pls share with me.
I'm live in Viet nam.
Thanks.

datcvn said:
this Problem same my DHD i'dont know my DHD die or not .
If You repair your DHD ok pls share with me.
I'm live in Viet nam.
Thanks.
Click to expand...
Click to collapse
Same problem here. It is out of warranty date.
I am a Vietnamese too.

Help meee. Htc desire hd ace
my phone is brickeo anyone know what I can do? No power or bootloader or CWM.
I was root, but returned to its factory version of AT & T gingerbread rom. I did not like and wanted to go back to being root but not knowing how I Birck the cell. I need a solution please

germancalvobolivar said:
my phone is brickeo anyone know what I can do? No power or bootloader or CWM.
I was root, but returned to its factory version of AT & T gingerbread rom. I did not like and wanted to go back to being root but not knowing how I Birck the cell. I need a solution please
Click to expand...
Click to collapse
Please tell me that you did not factory reset via bootloader
Sent from my ATRIX HD using Tapatalk

Help meee. Htc desire hd ace, htc inspire 4g at&t
marknoll said:
Please tell me that you did not factory reset via bootloader
Sent from my ATRIX HD using Tapatalk
Click to expand...
Click to collapse
Thank you. I did as he told me the official website of HTC, step by step. When I finished the phone worked well, but then I got bored of gingerbread quiser again become root, and that's when my phone brick. Now not light, it does not go bootloader fastboot, CWM, nothing. Only if I turn volume + volume - and power, virbra 7 times and LED lights green battery and nothing more. It does nothing, it is a brick
htc. com/ us/ support/ htc-inspire-4g -att/ news/
RUU_Ace_Sense30_S_Cingular_US_3.20.502.63_Radio_ 12.69c.60.29U_26.09.13.17_M_release_ 335423_ signed.exe

[Q] No Boot! No LED Signal

So, i tried changing my roms from Paranoid Android to myonev 9.5
And i knew i had to flash boot.img but then i thought I'd do it after flashing the rom (sorry im a noob) which happened to be a graaaaaave mistake
Now my phone doesnt switch on to bootloader nor does it show the charging LED!'
I have a primoU device. Ive googled aroud and found out that it could be a hard brick and the only way is to give it to a service centre..
But the problem there is i live in INDIA and we dont have much service centres here, the closest one is around 400kms from my home :/
So i wanna really make sure that is it worth travelling all those miles..
PLUS, My warranty expired 2 months back :crying:
I wish somebody helps me here, i will do ANYTHINGGG

fznnsr said:
So, i tried changing my roms from Paranoid Android to myonev 9.5
And i knew i had to flash boot.img but then i thought I'd do it after flashing the rom (sorry im a noob) which happened to be a graaaaaave mistake
Now my phone doesnt switch on to bootloader nor does it show the charging LED!'
I have a primoU device. Ive googled aroud and found out that it could be a hard brick and the only way is to give it to a service centre..
But the problem there is i live in INDIA and we dont have much service centres here, the closest one is around 400kms from my home :/
So i wanna really make sure that is it worth travelling all those miles..
PLUS, My warranty expired 2 months back :crying:
I wish somebody helps me here, i will do ANYTHINGGG
Click to expand...
Click to collapse
Try reverting to stock with a stock backup you'll find that on xda ... of your phones not booting into bootloader manually try using the all in one kit..it should have such an option although i didn't try this... If u can boot in bootloader then there's 99.9% chance that ur phone will come back to live

hold your power button until the screen goes off
then hold down your volume down button until u boot into bootloader
if it doesnt boot, try and try again
if u can boot into bootloader, the rest is easy

Pranav Sharma (PS) said:
Try reverting to stock with a stock backup you'll find that on xda ... of your phones not booting into bootloader manually try using the all in one kit..it should have such an option although i didn't try this... If u can boot in bootloader then there's 99.9% chance that ur phone will come back to live
Click to expand...
Click to collapse
Thanks for ur quick reply
No matter how hard i try it doesnt boot in bootloader.
I tried the all in one kit, it doesnt detect my phone..
My pc detects it as QHSUSB_DLOAD

fznnsr said:
Thanks for ur quick reply
No matter how hard i try it doesnt boot in bootloader.
I tried the all in one kit, it doesnt detect my phone..
My pc detects it as QHSUSB_DLOAD
Click to expand...
Click to collapse
hmmm then im sorry to say but i think u have bricked your phone :crying:
no choice but to send to hTC

is it this easy to brick?
one small error?
arent there any drivers for this qhsusb thing? so that it can detect my phone and then i can adb it to bootloader?

Sorry mate then I'm afraid it's bricked but still you should keep trying put the phone in charging even if its not showing led signal.. Then try again to boot into bootloader...maybe it helps..coz it should not brick so easily:fingers-crossed:

Pranav Sharma (PS) said:
Sorry mate then I'm afraid it's bricked but still you should keep trying put the phone in charging even if its not showing led signal.. Then try again to boot into bootloader...maybe it helps..coz it should not brick so easily:fingers-crossed:
Click to expand...
Click to collapse
Isi it possible that i allow it to drain the battery and then it boots by itself?

The phone is off, it will take years to drain the battery

fznnsr said:
Isi it possible that i allow it to drain the battery and then it boots by itself?
Click to expand...
Click to collapse
Actually it is a very good idea i myself did it once .. but the difference was that screen was struck on white bright HTC screen taking a lot of battery so it got discharged in 10 hrs but just now it will take a lot of time .. so i don't think you have that much patience...

That happened to me too, but that's not a brick, that's just stuck. This dude's phone is badly bricked, only way would be to find a driver for QHSUBS_DLOAD but I don't think it will be easy to find as all htc devices have this problem, someone would have already found it by now

HELP needed! G4 Bootloop!!

Hello guys!
It all started today in the morning when I opened Instagram application on my G4 (H815 model) and suddenly the phone froze. After 15 or 20 seconds it tried to reboot itself but it went straight into bootloop. It's not acctually a bootloop. It tries to go past loading screen and reboots another time and after that all I can see is LG logo.
I tried to enter recovery mode. No success. I tried updating/flashing KDZ file with LG Flash Tool and I got error everytime saying there was not enough information....
Last thing I tried was to boot into download mode. It shows Firmware Update screen but I don't thing ADB is working. I tried command adb devices and it found nothing.
I'm so desperate now as I need phone tomorrow. I hope it's not hard-bricked. Do any of you have idea what to do?
Any help apprechiated
TIA
Nejc

NejcSterle said:
Hello guys!
It all started today in the morning when I opened Instagram application on my G4 (H815 model) and suddenly the phone froze. After 15 or 20 seconds it tried to reboot itself but it went straight into bootloop. It's not acctually a bootloop. It tries to go past loading screen and reboots another time and after that all I can see is LG logo.
I tried to enter recovery mode. No success. I tried updating/flashing KDZ file with LG Flash Tool and I got error everytime saying there was not enough information....
Last thing I tried was to boot into download mode. It shows Firmware Update screen but I don't thing ADB is working. I tried command adb devices and it found nothing.
I'm so desperate now as I need phone tomorrow. I hope it's not hard-bricked. Do any of you have idea what to do?
Any help apprechiated
TIA
Nejc
Click to expand...
Click to collapse
you phone is dead. and must be sent to LG for repair or your retailer.. you got the famous bootloop issue. alot of people have it.. whats you first 3 digits of serial number ?

raptorddd said:
you phone is dead. and must be sent to LG for repair or your retailer.. you got the famous bootloop issue. alot of people have it.. whats you first 3 digits of serial number ?
Click to expand...
Click to collapse
are you sure it's dead???
Cause, OMG!
I can't be without phone. Is there any other way?
And BTW, I have unlocked bootloader, so no warranty for me
Why do I need first 3 digits of serial number?

NejcSterle said:
are you sure it's dead???
Cause, OMG!
I can't be without phone. Is there any other way?
And BTW, I have unlocked bootloader, so no warranty for me
Why do I need first 3 digits of serial number?
Click to expand...
Click to collapse
lots of people report bottloops theres a thread and i said about 80% suffers from it.. its a hardware problem from lg .
thers the flash kdz to disable big core ,phone will be slow but usable.. and some have reported that warranty was denied and some had luck and phone was fixed give it a try..
because the first phone are suppose to be more likely to suffer from it.. so to know if its old earlier phone. or new one . that soeant suppose to happen anymore but it still does..

raptorddd said:
lots of people report bottloops theres a thread and i said about 80% suffers from it.. its a hardware problem from lg .
thers the flash kdz to disable big core ,phone will be slow but usable.. and some have reported that warranty was denied and some had luck and phone was fixed give it a try..
because the first phone are suppose to be more likely to suffer from it.. so to know if its old earlier phone. or new one . that soeant suppose to happen anymore but it still does..
Click to expand...
Click to collapse
Thanks for the info. I checked serial number on the box and it says 507. I know a lot of 505 has this issue.
Do you have a link to that thread to disable main cores? I can still sell working phone rather than bricked
And I'm so pissed now because I didn't do anything wrong. Damn LG! Life's not good anymore!!
Is there possibility to flash KDZ with other program than LG flash tool? I can't get it working, it always says it couldn't find right information...

NejcSterle said:
are you sure it's dead???
Cause, OMG!
I can't be without phone. Is there any other way?
And BTW, I have unlocked bootloader, so no warranty for me
Why do I need first 3 digits of serial number?
Click to expand...
Click to collapse
Mine has gone away for repair . and by the way I'm not sure if you've noticed but you are without the phone anyway if it doesn't work . lol

fridaycider said:
Mine has gone away for repair . and by the way I'm not sure if you've noticed but you are without the phone anyway if it doesn't work . lol
Click to expand...
Click to collapse
I want to fix it. This would probably be possible if LG flash tool worked. Do you have any suggestions? I really like this phone

NejcSterle said:
I want to fix it. This would probably be possible if LG flash tool worked. Do you have any suggestions? I really like this phone
Click to expand...
Click to collapse
I really wish I could help . I managed to do a factory reset and it lasted 5 mins . you could try the oven fix .

fridaycider said:
I really wish I could help . I managed to do a factory reset and it lasted 5 mins . you could try the oven fix .
Click to expand...
Click to collapse
well, i guess I'll have to buy new phone. I'm a little disappointed with LG for this issue. Anyway, thanks for all of the useful posts. Thread can be locked now

Yes it's LG issue, but if you had not unlocked the bootloader , you would still have warranty. They will be fix this without problem
Wysłane z mojego LG-H815 przy użyciu Tapatalka

NejcSterle said:
Do you have a link to that thread to disable main cores? I can still sell working phone rather than bricked
Click to expand...
Click to collapse
https://m.reddit.com/r/lgg4/comment..._guide/?utm_source=mweb_redirect&compact=true

NejcSterle said:
well, i guess I'll have to buy new phone. I'm a little disappointed with LG for this issue. Anyway, thanks for all of the useful posts. Thread can be locked now
Click to expand...
Click to collapse
Give it a shot to try to get it fixed.. some had with unlocked bootloader.. someone already posted the KDZ that disables big cores..

mine is 603, anybody knows if it could have the problem?
Inviato dal mio LG-H815 utilizzando Tapatalk

nic85 said:
mine is 603, anybody knows if it could have the problem?
Inviato dal mio LG-H815 utilizzando Tapatalk
Click to expand...
Click to collapse
well only time will tell most will do .its just a matter of time.. since they are new and the ones getting bootloops are older.. so they say it takes about 8-9 months to show.. will need to wait and see. in 10 months from manufacturing date.
you cant tell wich one will but, LG says they fixed the issue in new phones..

Here is the video tutorial: https://www.youtube.com/watch?v=lbJXwPmbXFc

raptorddd said:
well only time will tell most will do .its just a matter of time.. since they are new and the ones getting bootloops are older.. so they say it takes about 8-9 months to show.. will need to wait and see. in 10 months from manufacturing date.
you cant tell wich one will but, LG says they fixed the issue in new phones..
Click to expand...
Click to collapse
thanks, bought a Galaxy s7 edge tho
Inviato dal mio LG-H815 utilizzando Tapatalk

NejcSterle said:
Hello guys!
It all started today in the morning when I opened Instagram application on my G4 (H815 model) and suddenly the phone froze. After 15 or 20 seconds it tried to reboot itself but it went straight into bootloop. It's not acctually a bootloop. It tries to go past loading screen and reboots another time and after that all I can see is LG logo.
I tried to enter recovery mode. No success. I tried updating/flashing KDZ file with LG Flash Tool and I got error everytime saying there was not enough information....
Last thing I tried was to boot into download mode. It shows Firmware Update screen but I don't thing ADB is working. I tried command adb devices and it found nothing.
I'm so desperate now as I need phone tomorrow. I hope it's not hard-bricked. Do any of you have idea what to do?
Any help apprechiated
TIA
Nejc
Click to expand...
Click to collapse
Have you tried flash your KDZ file with LGUP software? http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803

InterCity92 said:
Have you tried flash your KDZ file with LGUP software? http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
Click to expand...
Click to collapse
Yes, I tried everything. I've sent LG G4 for repair with unlocked bootloader, they replaced it without problems. I was without phone for 16 days though. It's working now, but I have some WiFi issues (slow download speeds)
[CAN LOCK THREAD NOW]

raptorddd said:
well only time will tell most will do .its just a matter of time.. since they are new and the ones getting bootloops are older.. so they say it takes about 8-9 months to show.. will need to wait and see. in 10 months from manufacturing date.
you cant tell wich one will but, LG says they fixed the issue in new phones..
Click to expand...
Click to collapse
They are 100% lying almost every other phone is being bootloop .. Hey guys dont buy new phone buy refurbished phones instead..
Sent from my LG-H815 using XDA-Developers mobile app

Phone stuck on LG start up

Hi, I have cynogen installed and all was working fine until this morning, noticed my phone appeared to be booting up, gets to the blue circle then goes black and goes back to the LG screen, then repeats. Ive never been able to get into recovery by pressing the power and vol button and have tried numerous times with no joy. I know i can boot into recovery using ADB but the phones needs to be on doesnt it? Is there any other way that I can do this? Please help been with out my phone all day! Feel lost lol

foxguard said:
Hi, I have cynogen installed and all was working fine until this morning, noticed my phone appeared to be booting up, gets to the blue circle then goes black and goes back to the LG screen, then repeats. Ive never been able to get into recovery by pressing the power and vol button and have tried numerous times with no joy. I know i can boot into recovery using ADB but the phones needs to be on doesnt it? Is there any other way that I can do this? Please help been with out my phone all day! Feel lost lol
Click to expand...
Click to collapse
you could do 2 things.. one download KDZ use LGUP flash it and see if it was software related or something went wrong at flash.. if it keeps doing it then it has the bootloop issue.. and need to be sent back for repair....can you provide your first 3 digits of your serial number...?

raptorddd said:
you could do 2 things.. one download KDZ use LGUP flash it and see if it was software related or something went wrong at flash.. if it keeps doing it then it has the bootloop issue.. and need to be sent back for repair....can you provide your first 3 digits of your serial number...?
Click to expand...
Click to collapse
Thank you, will look at this kdz, is it simple to use?
it has been working fine on cynogen for last few months, nor changed anything
s/n is 508

foxguard said:
Thank you, will look at this kdz, is it simple to use?
it has been working fine on cynogen for last few months, nor changed anything
s/n is 508
Click to expand...
Click to collapse
yes it is its pretty easy... . file is big though... download kdz for you variant.. what android you are using.? MM or were you on stock LP.?
well i think since your phone is from 2015 august. that bootloop was supposed to be fixed by then. but newer phone are still getting hit by the bootloop.. but be aware unlocking the bootloader voids warranty.. some been lucky that phone were repaired some were denied repair..

raptorddd said:
yes it is its pretty easy... . file is big though... download kdz for you variant.. what android you are using.? MM or were you on stock LP.?
well i think since your phone is from 2015 august. that bootloop was supposed to be fixed by then. but newer phone are still getting hit by the bootloop.. but be aware unlocking the bootloader voids warranty.. some been lucky that phone were repaired some were denied repair..
Click to expand...
Click to collapse
Its been unlocked for ages and running the cyanogen rom, this is what is now stuck but was running fine. lg website doesnt have the programme any more, will hunt for it. so this will work even though phone doesnt boot?

foxguard said:
Its been unlocked for ages and running the cyanogen rom, this is what is now stuck but was running fine. lg website doesnt have the programme any more, will hunt for it. so this will work even though phone doesnt boot?
Click to expand...
Click to collapse
her it is..
http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
http://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
here are the links but i think you got the BOOTLOOP problem that many been affected..
NO ...... the only way for your phone to boot and gather all data is to flash a moddedKDZ.. but am not sure if it works on your variant..
if you have warranty send it back...but if they find out its unlocked they may deny repair.. you must pay for it...
this will make it boot but it will make it slow. as it disables the main cores...
https://www.reddit.com/r/lgg4/comments/45gfg2/dae_g4_series_msm_big_core_disable_tool_guide/
read this post..
http://forum.xda-developers.com/g4/help/lg-g4-stuck-bootloop-t3268734

raptorddd said:
her it is..
http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
http://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
here are the links but i think you got the BOOTLOOP problem that many been affected..
NO ...... the only way for your phone to boot and gather all data is to flash a moddedKDZ.. but am not sure if it works on your variant..
if you have warranty send it back...but if they find out its unlocked they may deny repair.. you must pay for it...
this will make it boot but it will make it slow. as it disables the main cores...
https://www.reddit.com/r/lgg4/comments/45gfg2/dae_g4_series_msm_big_core_disable_tool_guide/
read this post..
http://forum.xda-developers.com/g4/help/lg-g4-stuck-bootloop-t3268734
Click to expand...
Click to collapse
Going to give this a whirl now mate, thanks.

LG G4 H810 Doesn't power up

Hello there, First of all i am new here, This is my first post here... well let's continue with my problem.
I bought a LG G4 about 1 month ago, everything was going perfectly, but 2 days ago it start to install a new android version on the phone, it says a new update was there, so i tried to download it... Everything goes ok and then my phone start with problems, i can't unistall any app because my phone restart, can't do a password because it close, can't use my phone like always...
So i tried to downgrade my phone to a previous android version, i tried this method: http://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
I used the kdz method using LG UP, i downloaded the firmware (PR H810PR10a_04.kdz) so i decided to follow the step in the thread mentioned before, everything was ok, it show up 100% and say complete, so i decide to unplug my phone and tried to power up, so what's up? My phone died, i can't make it power up, can't access download mode, can't acess factory reset or anything else, It doesn't power up using power on button, tried to charge and does nothing, PC don't reconigze it...
So maybe i bricked it, Is there any solution to this? As i need help... I am afraid of losing my phone as it was working amazing before.
Thanks you in advance.

moises1012 said:
Hello there, First of all i am new here, This is my first post here... well let's continue with my problem.
I bought a LG G4 about 1 month ago, everything was going perfectly, but 2 days ago it start to install a new android version on the phone, it says a new update was there, so i tried to download it... Everything goes ok and then my phone start with problems, i can't unistall any app because my phone restart, can't do a password because it close, can't use my phone like always...
So i tried to downgrade my phone to a previous android version, i tried this method: http://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
I used the kdz method using LG UP, i downloaded the firmware (PR H810PR10a_04.kdz) so i decided to follow the step in the thread mentioned before, everything was ok, it show up 100% and say complete, so i decide to unplug my phone and tried to power up, so what's up? My phone died, i can't make it power up, can't access download mode, can't acess factory reset or anything else, It doesn't power up using power on button, tried to charge and does nothing, PC don't reconigze it...
So maybe i bricked it, Is there any solution to this? As i need help... I am afraid of losing my phone as it was working amazing before.
Thanks you in advance.
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Anyone can help me please? I really need help with this!

moises1012 said:
Anyone can help me please? I really need help with this!
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Just give another cable a try. Maybe it's just the charger. Otherwise you may be another victim of the motherboard issue. Which serial? 5xx?

steadfasterX said:
Just give another cable a try. Maybe it's just the charger. Otherwise you may be another victim of the motherboard issue. Which serial? 5xx?
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Where can i find the serial number? Sorry i am just newbie in this.
About your solution it doesn't work, I have tried diferrent cables chargers and still don't work, It don't make any sign of life, it's dead completely.

Anyone please help me....

moises1012 said:
Where can i find the serial number? Sorry i am just newbie in this.
About your solution it doesn't work, I have tried diferrent cables chargers and still don't work, It don't make any sign of life, it's dead completely.
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Pull out he battery and you will see the serial. If it starts with 5xx your chances are big that you're another victim of the main board issue.
Check the other threads regarding bootloop and if you wanna recover your data try the freezer or oven method (search for those here)
.

steadfasterX said:
Pull out he battery and you will see the serial. If it starts with 5xx your chances are big that you're another victim of the main board issue.
Check the other threads regarding bootloop and if you wanna recover your data try the freezer or oven method (search for those here)
.
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No, My serial number don't start with 5, it's 404kxxxxx
Anyways i am going to give those threads a look, thanks you so much.

steadfasterX said:
Pull out he battery and you will see the serial. If it starts with 5xx your chances are big that you're another victim of the main board issue.
Check the other threads regarding bootloop and if you wanna recover your data try the freezer or oven method (search for those here)
.
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I have read others thread regarding the bootloop issue but it's not my problem... The main problem is my phone is dead... I can't make PC to recognize it, can't put chargers, don't even give any sign of life to power up, LED don't power up... So how can i do any of these methods when i can't make it awake?
Thanks you.

Me too, my phone doesn't turn on anymore, please help

Any solution to this please?

Your phone is proably refurbrished, and it have no all h810 parts inside. So proably it's not H810, and you flashed image for this, that's can be problem. you have to disassembly your phone and check parts.

I buyed it new so it's not refurbrished

Where you bought

Ganjax said:
Where you bought
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Amazon, I bought it new. I know in amazon are some refurbrished phones but i am sure i bought it new.

moises1012 said:
Amazon, I bought it new. I know in amazon are some refurbrished phones but i am sure i bought it new.
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Amazon? It's same as aliexpress or even wish

It's an Online shop, I bought it directly of a trusted seller so i am sure it's new... The problem come when it start updating.

LG is having a hard time with dead phones, one of my Nexus 5x just died... It just died and will need to send it to repair.
Enviado desde mi Nexus 5X mediante Tapatalk