Hello, I decided to go back to the stock rom on my Optimus 4X HD. I did so by following this guide by Demetris: http://forum.xda-developers.com/optimus-4x-hd/general/lg-p880-firmware-flash-upgrade-t2919195
I flashed V20B kdz in upgrade mode through the LGflashtool and everything worked fine. When rebooting I can hear the bootup sound and see the logo but it stays in a bootloop. The thread I linked above suggests that I do a factory reset.
I can access the stock recovery but it's not working properly. When I press factory reset I see the android guy with an Error! icon above him and nothing happens.
adb sideload fails everytime but I can use adb shell and access the phones storage that way.
Bootloader is unlocked. Another thing to mention is that on the back of the battery it says not for "resale". It might be a developer preview phone because I bought on display for half the price in a phone store.
How can I recover from this bootloop? Any help ?
Related
I'm new to the development side of Android and I bought a ROOTED phone from a Co-worker. Well my phone tried to do a software update and the phone is stuck in a CWM boot loop. Me not being familiar with CWM or ROOT, I pressed the factory reset button in CWM. Now I am unable to fix it. I have tried ADB sideload to load ROMS to the phone. They will say they are installed but then it will just go right back to CWM. I am trying the LG flash tool now but my phone will not go into download mode. Can anyone help me, please. I love this phone....
okcthunderfan94 said:
I'm new to the development side of Android and I bought a ROOTED phone from a Co-worker. Well my phone tried to do a software update and the phone is stuck in a CWM boot loop. Me not being familiar with CWM or ROOT, I pressed the factory reset button in CWM. Now I am unable to fix it. I have tried ADB sideload to load ROMS to the phone. They will say they are installed but then it will just go right back to CWM. I am trying the LG flash tool now but my phone will not go into download mode. Can anyone help me, please. I love this phone....
Click to expand...
Click to collapse
Can you get into clockwork mod without it looping
If not try command
Adb reboot recovery
Chances are previous owner has some Roms saved on the SD card
In the download folder
Keep in mind Roms are carrier specific on this phone
Yes it boots into CWM recovery and I accidentally wiped everything. I am trying to use the LG flash tool but it will not even go to download mode....
In recovery factory reset clear your cache and dalvic
And try sideload again,if it doesn't work try pushing the file with adb
If you can't get that pm me and I'll troubleshoot with you.
D950 on LG logo
I have a D950 only boots to the LG logo. I rooted the phone and then tried to install CWM. I didn't know about Freedom Flex then, so i used a forum post to try and do it. I successfully got CWM on the phone, but now it won't boot past the LG logo (also boots to CWM, I think it'll go into download mode). I'm not sure if I did any of it correctly, but I've tried CWM, ADB, LG Flash Tool, Odin, etc to somehow get the phone working again to no avail. I'm not even sure if anything can connect/detect the phone. If there's nothing I can do then fine, but if anyone can help/try to help please do. It was a nice phone an i'd love to have it working again, its been so long.
I tell my problem, I had running my lg, then I saw that I could install TWRP / CWM Recovery, but my lg is D950 AT & T, install the recovery and everything ok, when I gave enter recovery mode, the phone will reboot and all good do not touch anything in recovery, just wanted to see if it had worked, when you reboot, the phone will stay in LG and there does not pass, looking at other forums I read that this recovery can not be installed in these models because they are D950 variant, have a different software, the fact is that now the phone just stays in LG, I put in download mode on the PC, but only placed in donwload mode and the PC does not identify anything, does not sound anything that is connected the phone, and not to do !!! I tried to hard reset and nothing, and in the other forum say the phone is Brick, please, I need help
Hi all,
I have put myself in horrible situation look like phone is bricked . I can not start my phone in recovery or download mode even.
here are the series of step I had performed:
1)Unlock bootloader and intalled latest twrp-3.0.2-1-h815.img 16.5M 2016-09-15 07:23:54 EDT for ( since 815/811) has same twrp on twrp website.
2) tried to install lineage OS rom for 811 but the recovery gave me problem that device is 815. Please install 815 rom, so I flashed 815 and it flashed fine and device booted and worked fine.
3)Now the problem starts, it crashed after some time and stuck in boot loop.
4)I had tried to boot in recovery and tried to restore back up image, but it crashed in the middle and after that I was not able to start to recovery.
5) Then I used the LG UP and flash kdz file H811V20r_00_0111.kdz for stock rom.
6) It flashed successfully, but device never got boot up and now I am unable to go to download mode.
7) Displaying small download mode symbol but device is stuck on the symbol and not going to Download mode.
I am stuck now, Is there any solution to come out of it. Please help me.
Thanks
Now my phone starts into download mode, and I flashed the original kdz h81120v_00_0425 using download mode, after flashing first time, it went to opitmizing Apps screen but restated in middle.
After that I tried multiple times sing hard reset, but it always freeze on 2nd screen when I press yes to reset.
I flashed kdz multiple time using LG up, but it stuck on LG logo with unlocked boot loader msg. not going to the bootloop.
Current condition is now I am unable to enter download mode it respond but freeze before entering download.
I can not hard reset as it always freezes on 2nd hard reset screen and not formatting.
No charging.
I am not sure, If this is some hardware issue or emmc fault , Please help me on this..
droidprav said:
Hi all,
I have put myself in horrible situation look like phone is bricked . I can not start my phone in recovery or download mode even.
here are the series of step I had performed:
1)Unlock bootloader and intalled latest twrp-3.0.2-1-h815.img 16.5M 2016-09-15 07:23:54 EDT for ( since 815/811) has same twrp on twrp website.
2) tried to install lineage OS rom for 811 but the recovery gave me problem that device is 815. Please install 815 rom, so I flashed 815 and it flashed fine and device booted and worked fine.
3)Now the problem starts, it crashed after some time and stuck in boot loop.
4)I had tried to boot in recovery and tried to restore back up image, but it crashed in the middle and after that I was not able to start to recovery.
5) Then I used the LG UP and flash kdz file H811V20r_00_0111.kdz for stock rom.
6) It flashed successfully, but device never got boot up and now I am unable to go to download mode.
7) Displaying small download mode symbol but device is stuck on the symbol and not going to Download mode.
I am stuck now, Is there any solution to come out of it. Please help me.
Thanks
Click to expand...
Click to collapse
droidprav said:
Now my phone starts into download mode, and I flashed the original kdz h81120v_00_0425 using download mode, after flashing first time, it went to opitmizing Apps screen but restated in middle.
After that I tried multiple times sing hard reset, but it always freeze on 2nd screen when I press yes to reset.
I flashed kdz multiple time using LG up, but it stuck on LG logo with unlocked boot loader msg. not going to the bootloop.
Current condition is now I am unable to enter download mode it respond but freeze before entering download.
I can not hard reset as it always freezes on 2nd hard reset screen and not formatting.
No charging.
I am not sure, If this is some hardware issue or emmc fault , Please help me on this..
Click to expand...
Click to collapse
thats not latest TWRP... latest unified h815- h811 name is twrp-3.1.1-0-g4 official
2) tried to install lineage OS rom for 811 but the recovery gave me problem that device is 815. Please install 815 rom, so I flashed 815 and it flashed fine and device booted and worked fine. why if you know its h811.. or is it.??
5) Then I used the LG UP and flash kdz file H811V20r_00_0111.kdz for stock rom. did you select refurbished .? this will clean wipe all partitions/
not sure how to help .. but next time search for uppercut// LGUP// and itll point you to file needed..
is it a h811 or h815.. could be that outside case is switched.?
raptorddd said:
thats not latest TWRP... latest unified h815- h811 name is twrp-3.1.1-0-g4 official
2) tried to install lineage OS rom for 811 but the recovery gave me problem that device is 815. Please install 815 rom, so I flashed 815 and it flashed fine and device booted and worked fine. why if you know its h811.. or is it.??
5) Then I used the LG UP and flash kdz file H811V20r_00_0111.kdz for stock rom. did you select refurbished .? this will clean wipe all partitions/
not sure how to help .. but next time search for uppercut// LGUP// and itll point you to file needed..
is it a h811 or h815.. could be that outside case is switched.?
Click to expand...
Click to collapse
I know I have done few things wrong in confusion, but realized later on. It is H811 TMO model for sure.
I did select refurbished while using LG UP
My phone is not completely dead.
Pressing power button it stuck on LG logo with unlocked boot loader msg. not going to the bootloop.
I am unable to enter download mode, it responds but freeze before entering download showing 4 blue dots.
I am able to enter recovery but I can not hard reset as it always freezes on 2nd hard reset screen and not formatting.
No charging, Device Manager shows nothing.
Is there a way to recover??
I am not sure, If this is some hardware issue or emmc fault , Please help me on this..
I'm in the same situation.
I tryed to install h81120v kdz and did it perfectly, but when the phone restarted... bootloop!
And now, if I try to enter in Download Mode, a message 'Download Mode' appear with 5 blue dots and nothing else.
My computer don't recognize it
I tryed the Unbrick method with SD Card but still the same
ReDemonBR said:
I'm in the same situation.
I tryed to install h81120v kdz and did it perfectly, but when the phone restarted... bootloop!
And now, if I try to enter in Download Mode, a message 'Download Mode' appear with 5 blue dots and nothing else.
My computer don't recognize it
I tryed the Unbrick method with SD Card but still the same
Click to expand...
Click to collapse
exactly same problem here but i managed to get out of 9008 brick by ls991 files now i have no download mode and only a charge before turning on message on the screen really pissed off now
Hi guys,
So I had a stock T-Mobile LG G4 H811 that I had unlocked and booted into twrp version 3.1.1-1-g4. I wasn't able to actually flash recovery of this .img becuase of a write failure. So I booted into it instead and then installed it from within twrp into the recovery partition. The actual stock software was the ORIGINAL original, which I think was android 5.1.1
From there, I cleared the cache and delvik cache and installed the G4-H811-10N-xTreme-2.0 Rom. Now, I can't boot into recovery mode anymore, and all I get is the bootloop.. but it's not dead yet because it's a software issue on my part and not a hardware failure.
Any advice on how to get it to recovery mode or at least so I can boot into twrp somehow to try and get this fixed? I tried Power+Volume Down and then let go a sec and Power+Vol Down again and it won't work at all. Just goes straight to bootloop.
Thanks in advance.. I know I screwed up somewhere.. just so many loopholes, it's easy to miss.
Best,
Johnnie
Got somewhere, still broke
Well, somehow I managed to boot into recovery mode only 1 time and installed the stock Tmobile rom. It installed, but now I get a white T-Mobile screen on boot up and it stays there. I tried using the LG Flash Tool 2014 and the stock T-Mobile H811 10N firmware for T-Mobile, but all I get is connection to server errors and the software won't install to the phone over download mode. Anyone else have this problem? I've been trying to figure this stupid thing out for 6 hours. Also, I'm wondering if installing the stock firmware caused the original recovery partition to go back to stock too which is the reason I'm no longer able to boot into recovery mode? It just doesn't recognize it. Power+vol down and then vol down doesn't do anything.
When using the LG Flash Tool 2014, all I get is Connection to Server Failed, Try again. So I do, and nothing. It fails at 9%
Thanks.
jtlefebvre said:
Well, somehow I managed to boot into recovery mode only 1 time and installed the stock Tmobile rom. It installed, but now I get a white T-Mobile screen on boot up and it stays there. I tried using the LG Flash Tool 2014 and the stock T-Mobile H811 10N firmware for T-Mobile, but all I get is connection to server errors and the software won't install to the phone over download mode. Anyone else have this problem? I've been trying to figure this stupid thing out for 6 hours. Also, I'm wondering if installing the stock firmware caused the original recovery partition to go back to stock too which is the reason I'm no longer able to boot into recovery mode? It just doesn't recognize it. Power+vol down and then vol down doesn't do anything.
When using the LG Flash Tool 2014, all I get is Connection to Server Failed, Try again. So I do, and nothing. It fails at 9%
Thanks.
Click to expand...
Click to collapse
try using LGUP
Hi, I made factory reset in TWRP and then problems started. After Huawei logo, screen got dark and only three buttons on the bottom were visible and active. I decided to install stock rom(using fastboot and extracting system boot and recovery), but whenever I do it, phone restarts and go to erecovery. Factory reset in stock recovery always stuck on 99%.
I have got unlocked bootloader, but I dont even know if I install proper version of ROM. Prevoiusly it was PRA-LX1....B161, so I searched for exact rom, but can't install rom properly.
Help me please
Use the Unbrick section incthe How to root thread