Hello guys,
I have an LG G4 H811 T-Mobile variant, it has gone into boot loop since last week. I have tried different things but nothing worked. Living in a third world country, there no LG service center here. The phone costs alot here, please someone help me fix it. I don't care if any data will be lost, I just want the phone fixed and working. There is a big core disable method but it doesn't support H811 model. Anyone here who can create a tot file for this model, help will be appreciated.Thanks in advance
Try flash the phone with the stock rom in Download Mode:
Tools:
1-Download and Install LG USB Drivers -> LGMobileDriver_WHQL_Ver_4.2.0.exe
2-Install the dll's for your phone, in your case a Qualcomm Snapdragon 800 based phone -> LGUP_8974_DLL_Ver_0_5.MSI
3-Install LG UP -> LGUP_Install_Ver_1_14_3.msi
4-Download your stock ROM -> H81120i_00_0201.kdz (latest) or H81120x_00_1108.kdz
Procedures:
1-Open LG UP you will see a popup waiting for you to connect the phone, now connect only the cable without the phone
2-Make sure your phone is completely off
3-Once the LG G4 is off, press and hold the Volume Up button, plug the USB cable into the phone. Continue Holding the Volume Up Button, you'll see ‘Download Mode’ but continue holding.
4-Let Go of the Volume Up Button When You See the Firmware Update Screen on the LG G4
5-From LG UP main screen, Choose Upgrade and CLICK “BIN/File” to select the kdz file you just downloaded
I can't put external links so google it.
Hope i help.
mgelo said:
Try flash the phone with the stock rom in Download Mode:
Tools:
1-Download and Install LG USB Drivers -> LGMobileDriver_WHQL_Ver_4.2.0.exe
2-Install the dll's for your phone, in your case a Qualcomm Snapdragon 800 based phone -> LGUP_8974_DLL_Ver_0_5.MSI
3-Install LG UP -> LGUP_Install_Ver_1_14_3.msi
4-Download your stock ROM -> H81120i_00_0201.kdz (latest) or H81120x_00_1108.kdz
Procedures:
1-Open LG UP you will see a popup waiting for you to connect the phone, now connect only the cable without the phone
2-Make sure your phone is completely off
3-Once the LG G4 is off, press and hold the Volume Up button, plug the USB cable into the phone. Continue Holding the Volume Up Button, you'll see ‘Download Mode’ but continue holding.
4-Let Go of the Volume Up Button When You See the Firmware Update Screen on the LG G4
5-From LG UP main screen, Choose Upgrade and CLICK “BIN/File” to select the kdz file you just downloaded
I can't put external links so google it.
Hope i help.
Click to expand...
Click to collapse
Already tried flashing stock rom but it didn't work,still stuck on bootloop . Btw thanks for your help
Try this: https://forum.xda-developers.com/tmobile-g4/general/lg-g4-h811-complete-unbrick-guide-100-t3461629
mgelo said:
Try this: https://forum.xda-developers.com/tmobile-g4/general/lg-g4-h811-complete-unbrick-guide-100-t3461629
Click to expand...
Click to collapse
Well I can still go in download mode and flash kdz but the phone doesn't go pass the LG logo after flashing.
mohaimin said:
Well I can still go in download mode and flash kdz but the phone doesn't go pass the LG logo after flashing.
Click to expand...
Click to collapse
This can be a hardware malfunction related to LG G4 phones as reported by the manufacturer:
https://wccftech.com/lg-g4-v10-lawsuit/
If your phone is under warranty and if this is the problem they must give you a new one. Contact your operator Technical Support service and they will send the phone to the manufacturer.
If it's not under warranty, there is a bunch of videos in youtube explaining how to fix this problem:
Try this: https://www.youtube.com/watch?v=frrCUkwzKzE
Related
LG P500
I Advancement through
impossible to go back to the V20F V10h
or from 2.3.3 to 2.2.2 with KDZ and I put everything comes to an end, but when I turn on the LG-P500 on the boot and stay in the boot nemoze to convert to the main screen WHY. my English is desperate
make hard-reset:
a) Turn off the phone. If Power Off not working, remove the battery.
b) Press and hold ‘Home’ key and ‘Volume Down’ key.
c) With these 2 keys pressed, press Power button and hold till phone starts to boot in reset mode.
rajko34 said:
LG P500
I Advancement through
impossible to go back to the V20F V10h
or from 2.3.3 to 2.2.2 with KDZ and I put everything comes to an end, but when I turn on the LG-P500 on the boot and stay in the boot nemoze to convert to the main screen WHY. my English is desperate
Click to expand...
Click to collapse
So is Google translate too.
Sent from my LG-P500 using XDA Premium App
whether it will then work through V10h returned in this way
if u have flash sucessfully than switch off ur phn and PRESS 3 BUTTON COMBO ( HOME + VOL DOWN +POWER BUTTON ) and it will boot fine .
if not than raed downgrading ur phn in thread
http://forum.xda-developers.com/showthread.php?t=1038338
it will work same way wth the 1 u want to downgrade if it stuck at android logo
rockvoid said:
make hard-reset:
a) Turn off the phone. If Power Off not working, remove the battery.
b) Press and hold ‘Home’ key and ‘Volume Down’ key.
c) With these 2 keys pressed, press Power button and hold till phone starts to boot in reset mode.
Click to expand...
Click to collapse
Thank you a lot of combinations of 3 booton Home, Volume Down, Power solve the problem thank you very much
I would really like to return to Froyo, but... I don't understand what rajko34 did.
Like, the v10 baseband is available but where I can get a stock froyo rom to flash with the LGMDP.exe?
If I flash with KDZ, the baseband is flashed/downgraded too?
Thanks in advance
rajko34 said:
LG P500
I Advancement through
impossible to go back to the V20F V10h
or from 2.3.3 to 2.2.2 with KDZ and I put everything comes to an end, but when I turn on the LG-P500 on the boot and stay in the boot nemoze to convert to the main screen WHY. my English is desperate
Click to expand...
Click to collapse
Hi,
I am replying to this post just want that other should aware about the facts that Downgrading from 2.3.3 (V20) to 2.2.2 (V10) is possible and is successful using KDZ. You just have to take care of some below Points before flashing:
I AM NOT RESPONSIBLE FOR ANYTHING GOES WRONG TO YOUR DEVICE. TRY ON YOUR OWN RISK
1. Always Use latest driver from LG and make sure that your device is disconnected and any previous version of drivers should be uninstalled from "add and remove programs" using Windows XP SP3 system (Including LGE Virtual Modem,etc. etc. ..!!! (The one who already have latest drivers and clean PC won't find "Virtual Modem" in the device manager, So just Chill ) ..Check device manager and uninstall if they still there and also uninstall drivers from other vendors like Nokia, samsung, etc.
2. After uninstalling drivers , restart your system and make sure that your user is an administrator and then install New LG drivers from the LG official website (Just Google== LG P500 drivers ). and Disable LGE Virtual Modem if still its appearing in the device manager.
3. Always make sure that USB Debugging is enabled on the device and your system supports USB 2.0 (High Speed), so notification like "Hi-Speed device is plugged into Non Hi-speed USB" should not appear.!!
3. Extract KDZ_FW_UPD_EN.zip and Install msxml.msi and reboot your system again.!
4. Again you need administrator.!
5. Now Plugged the Device via USB.!, System will install drivers for your device. Wait let the system completes the driver installation .!
6. Unplugged the USB from the phone and Restart the Phone.
7. Wait for the phone to Boot and load completely (Approx 5 minutes).
8. Set Display Brightness timeout to 30 minutes and ensure USB debugging is ON.
9. Plug the device again and keep it at a place where it will not get disturbed. (Also ensure that You have Good working Data Cable, Hope Your Original one is still alive )
10. Open KDZ_FW_UPD.exe, select type "3GQCT" and phonemode "DIAG"
11. Click browse and select "V10E_00.kdz" file from where you have download it, I have used Indian version because I have Indian LG O1. (I recommend V10E_00.kdz because i used it twice and it works lika a charm :victory: )
12. Now the Flashing Part .! :fingers-crossed: ...!!. Click Launch Software Update.!
13. The phone will goes to Emergency Mode (Don't panic).! and the flashing process will start.. ! wait for flashing to complete.! Ensure that your system will not goes on Standby or sleep.! And If you are using a Laptop I suggest you to plug in the power first.!
14. I always make my mouse moving while flashing process is in progress. It make me feel better . So you can also try this
15. The flashing process may take 5-10 minutes to complete. and you phone will restart itself indicating the offline battery charging screen.!
16. Wait until KDZ prompt "FINISHED" in the end of the log.
17. Unplug the USB and wait for 5 seconds and press and hold Home+VolumeUp+Power simultaneously for Hard resetting the phone .
18. When The screen Shows LG Logo leave the buttons and Hard reset will take half a minute to complete.
19. Wait and Let the device Boots ups completely. (First Boot will take 5 minutes to get you to the lock screen)
20. Done.!! Congratulations.! You are now Downgraded to 2.2.2 . :highfive:
Good Luck :good:
IF anything went wrong during the flashing process or KDZ gave you any error in between the process.! Please DONT pull the battery out from the Phone. Else It will HARD BRICK YOUR PHONE.! And u are not even able to get the phone Power on..I mean Dead! Just Find Support on XDA and try and try again.! (Also suggest you to do not unplug the data cable, it may also lead to HARD brick the phone.)
In this situation ensure that you have a right flashing KDZ file. and IF you have the right one use different "phonemode" like Emergency, Emergency_CS, etc and try and try again.!
IF still wont work try to shake your phone and touch the screen again and again and try to launch the software upgrade
If still device is not responding try lgmdp method and try to flash a recovery and Image.
If nothing works restart you system and then again launch the software update in emergency mode.! (This option works for me once but i recommend you to try it as a last choice)
Don't pull the battery out and ask for support on xda.! Might be someone save your phone's life.
If the phone is still stucked you have to get it to the service centre. (If your phone is in warranty they will replace the PCB free of cost)
Afternoon guys, so today, I finally found my phone. I moved out this previous weekend and I left it at my old place, my friends figured it'd be hilarious to post something on Facebook or send people texts from my phone, but locked themselves out, and then apparently attempted to restart in recovery mode. Now it's stuck on the LG logo, it's not seen by my computer by LG's software, or KDZ, and I don't want to take it back to the shop and get it replaced because it has all of my stuff on it (And it was rooted with Cyanogenmod installed) Anyone have any other suggestions? Do you think the store will find out or even care if I had Cyanogen installed?
Cheers, Chris.
Also, I apologize in advance if this thread is in the wrong place.
1.does it boot in recovery or not. If it does there is no problem
2.Have you tried wiping dalvik cache and data.
3.you can flash another rom it boots in recovery
Attempt Further
Try all SWISS ARMY methods ;-)
Can you get into RECOVERY???
If so try wiping CACHE,DALVIK,BAT STATS then reboot..else
You can use option MOUNT USB STORAGE(when connected to pc)
and COPY files from sd to pc.
After that Flash a new ROM after a HARD RESET
rishabho1 said:
1.does it boot in recovery or not. If it does there is no problem
2.Have you tried wiping dalvik cache and data.
3.you can flash another rom it boots in recovery
Click to expand...
Click to collapse
No, doesn't boot at all, stuck on the LG logo.
I haven't wiped any caches, I don't have a clue how.
I can get it into Emergency Mode, but KDZ isn't finding the phone, with the modem disabled. The LG software wont update, says there's a problem with the connection between the phone and the computer (My guess would be that it doesn't like Emergency Mode). Does it want a recovery image to be on the SD card?It'd be my first point of call, but I don't have an SD card reader on hand, but if that's all it wants, I could probably find one around.
I usually work with computers, not phones, and to my understanding, this could all be resolved by resetting the bios/removing the CMOS battery for 5 minutes, is there a way to do this on my phone?
do you have lg united drivers because kdz updater picks up the phone even while booting and also if phone is off .
dont use the computer scienve in phones..
what mode are u using in kdz updater
thank me please....
chart75 said:
No, doesn't boot at all, stuck on the LG logo.
I haven't wiped any caches, I don't have a clue how.
I can get it into Emergency Mode, but KDZ isn't finding the phone, with the modem disabled. The LG software wont update, says there's a problem with the connection between the phone and the computer (My guess would be that it doesn't like Emergency Mode). Does it want a recovery image to be on the SD card?It'd be my first point of call, but I don't have an SD card reader on hand, but if that's all it wants, I could probably find one around.
I usually work with computers, not phones, and to my understanding, this could all be resolved by resetting the bios/removing the CMOS battery for 5 minutes, is there a way to do this on my phone?
Click to expand...
Click to collapse
HARD RESET is like removing CMOS battery... but it reverts phone back to ORIGINAL STATE n you will lose all your data and apps..
So Backup all data in SD then PERFORM Hard Reset by:
Pressing Home+Vol.Down+Power
(CAUTION:HARD RESET DELETE ALL USER DATA
rishabho1 said:
do you have lg united drivers because kdz updater picks up the phone even while booting and also if phone is off .
dont use the computer scienve in phones..
what mode are u using in kdz updater
Click to expand...
Click to collapse
Yep, LG United Drivers.
I'm using;
Type: 3GQCT
And Phonetype: Emergency
I still get;
17:29:03 : Launching SW update
17:29:03 : Unpacking KDZ
17:29:06 : KDZ file extraced
17:29:08 : Files were extracted.
17:29:08 : LGMobileDL Load.
17:29:08 : Port = -1
17:29:08 : Connecting to phone
17:29:13 : PHONE WAS NOT FOUND!
17:29:15 : ===FINISHED===
I've read the other threads, and they all say that it's usually the Modem driver, but I've made sure that it's disabled, and the battery's out, so it's getting power from the USB, so I don't think it can be the cable.
u didnt explain what is happening
1when you press power button it gets stuck on lg or what
2 when you press vol up + home + power what happens
you didnt tell correctly
rishabho1 said:
u didnt explain what is happening
1when you press power button it gets stuck on lg or what
2 when you press vol up + home + power what happens
you didnt tell correctly
Click to expand...
Click to collapse
Its like removing CMOS battery of your pc.
But in PC, BIOS Settings are reverted to DEFAULT and OS is not harmed.
Here, Your phone will appear as if you just powered it up after FLASHING CM7
CHECK OUT HERE:
http://forum.xda-developers.com/showthread.php?t=1257134
Press Thanks If I Helped You! ;-)
rishabho1 said:
u didnt explain what is happening
1when you press power button it gets stuck on lg or what
2 when you press vol up + home + power what happens
you didnt tell correctly
Click to expand...
Click to collapse
Sorry I was vague, it gets stuck on the LG symbol. With Vol up , home and power it sits on the LG screen as well.
chart75 said:
Sorry I was vague, it gets stuck on the LG symbol. With Vol up , home and power it sits on the LG screen as well.
Click to expand...
Click to collapse
My mistake it was Vol.down..
thank you. i will try it later
chart75 said:
Yep, LG United Drivers.
I'm using;
Type: 3GQCT
And Phonetype: Emergency
I still get;
17:29:03 : Launching SW update
17:29:03 : Unpacking KDZ
17:29:06 : KDZ file extraced
17:29:08 : Files were extracted.
17:29:08 : LGMobileDL Load.
17:29:08 : Port = -1
17:29:08 : Connecting to phone
17:29:13 : PHONE WAS NOT FOUND!
17:29:15 : ===FINISHED===
I've read the other threads, and they all say that it's usually the Modem driver, but I've made sure that it's disabled, and the battery's out, so it's getting power from the USB, so I don't think it can be the cable.
Click to expand...
Click to collapse
dont take out the battery and use rear usb port and shake ur phone hard to make it detect usually shaking helps
Have you tried shaking the phone?:
http://forum.xda-developers.com/showthread.php?t=883314
laz3r69 said:
My mistake it was Vol.down..
Click to expand...
Click to collapse
Still just that damn LG symbol.
Try These:
http://forum.xda-developers.com/showthread.php?t=1257134
http://forum.xda-developers.com/showthread.php?t=883314
One thing you can always do is brick your phone and take it to lg ppl and say i was playing a game suddenly my phone switched off do this only if in warranty!
or
DO NOT PLUG IN YOUR PHONE UNTIL STEP 3!
1. Went to system restore in windows(you'll find it under Backup and Restore in the Control Panel) and restore your computer to a state before installing any drivers for your phone.
2. After everything had completed, installed LG Mobile update. There is an option to install general USB drivers for your phone, DO NOT do it! Go to Customer Support > Application, Manual & USB driver download. Input your IMEI number from behind the battery in the back of your phone(or just select the "Read your phone" option if you can get it to read your phone). It will search and return the correct drivers for your exact phone. Download and install your USB drivers.
3. Keep your phone disconnected from your PC, and start up LG mobile update again. Connect your phone, LG mobile update should verify the connection by trying to connect to your phone, checking software versions, etc. It will connect even if you are stuck at the LG screen.
4. If everything checks out run KDZ updater and flash your phone back to original specs.
try this this uses lg updater instead of kdz updater
have you flashed a .32 kernel on .35 rom or vice versa?
Press thanx if i helped you..
Sent from LG-P500 using xda premium
Hello.
I recently sold this phone and went to factory reset. no problem. However, i forget i deleted the STOCK home app. THere is no launcher on the device so LG Setup Wizard simply crashes when finished setting it up. There is NO ADB since the setting has been erased. I need to re-enable it in settings but can't get that far since LG Setup Wizard keeps crashing..
I think i'm screwed.. what a stupid way to brick..
Device is: LG Optimus L9 P769 T-Mobile variant. Thanks guys!
you should be able to put your device on download/emergency mode and flash a kdz file with lg tool, you tried it?
if don't try yet, take out your battery, hold + volumen botton and put your battery again holding even + volumen key, and conect your to your computer, it must show the yellow screen with the legend download/emergency mode, and in your computer must be install the drivers, to exit the download/emergency mode just take out the battery or hold the power button, and for flash a kdz file, search a tuto, there are many, and many videos to make it easy . All this process let your device as new, all applications and configurations
I am aware of that mode but when attempting to flash that way before, after upgrading to jellybean, it would never flash for me. So I didn't even try it. I'll give it a shot though. I also was able to download one of the cwm backup zips posted in the other thread and extracted the system partition then created a .img image out of it and will try both your method and flashing that img file when I get home from work. Thank you for your post!
Sent from my SM-G900T using Tapatalk
SOLUTION
Installed the ICS uboot.
Booted to SW Upgrade mode via plug USB, hold volume up button, place battery into device
Launched KDZ update tool and it connected and went smoothly!
If you have the JellyBean uboot, it won't connect in SW Upgrade mode if booted manually.
Hello, I want to unroot and upgrade my LG G2 mini (LG-D620r) from Android 4.4.2 to Lollipop but I have some doubts, that is why I have decided to ask You Guys some questions. First of all I read somewhere that unroot can be done using LG suit. Is that true? If yes, would it be possible to upgrade my Android to Lollipop? If not, is the Return Stock the only way to upgrade to Lollipop?
Like this:
RETURN STOCK :AN USER FRIENDLY GUIDE
to return stock we need
- drivers http://oceanhost.eu/ed0bnrnghgef/LGU...3.12.3.exe.htm
- lg flash tool (a software similar an Odin)http://oceanhost.eu/mipqojfvv9ti/LG_..._2014.zip.html
- a Run Time library (if you have problem with install or play lg flash tool) http://oceanhost.eu/mipqojfvv9ti/LG_..._2014.zip.html
- the stock rom http://lg-firmware-rom.com/ ( go here and use your Imei which is inside your lg g2 mini box or obtainable typing *#06# from your Dialer). The stock Rom is big (1 gb approximately)
this is the Euopean stock no brand rom (only d620r)
firmware: D62010g_00
https://drive.google.com/file/d/0B5G...ew?usp=sharing
download and install drivers
download and unpack in a folder LG FLAH TOOL
open LG FLASH TOOL as administrator
where is written "Select KDZ file" put the your stock rom
if you want only reflash the stock rom , choose "Normal flash" , otherwise if you want to make no brand , choose "CSE flash"
and tap "START"
choose your Country and language
connect your device in DOWNLOAD MODE ( insert usb cable holding the + volume button; the device is off)
click retry and Wait Until the end ( IF you Choise CSE Flash ,after the flash all user data will be erased!)
IF THE DEVICE IS BLOCKED IN BOOTLOOP AFTER THE PROCESS, SWITCH OFF , AND SWITCH ON THE DEVICE HOLDING THE POWER BUTTON AND THE - VOLUME BUTTON; WHEN APPEAR THE LG LOGO , LEAVE THE BUTTONS FOR A SECOND AND HOLD THEM AGAIN. DO AN HARD RESET AND REBOOT(after the hard Factory reset , all data will be ERASED!)
Click to expand...
Click to collapse
source: http://forum.xda-developers.com/g2-mini/general/complete-guide-vademecum-lg-g2-mini-t2900073
My friend was following the WTF V30/V30+/V30S Bootloader Unlock and Root and Frankenstein posts. He started using the Magstik to uninstall bloatware then tried applying a OTA update that showed up on the phone it restarted but never went past the Verizon load screen. The phone now no longer boots to where you can use the phone nor stays in download mode to use adb. On one computer sees the device as LGE Android MTP Device on another computer it shows it as that but the device needs troubleshooting. Anyone have any advice to get it back to where I might be able to get it functional again?
Thank you again in advance!
LawndoCalrissian said:
Bootloader Unlock and Root and Frankenstein posts. He started using the Magstik to uninstall bloatware then tried applying a OTA update that showed up on the phone it restarted but never went past the Verizon load screen.
Click to expand...
Click to collapse
Why would he apply an OTA update when he no longer has full stock firmware? He had TWRP custom recovery!
Yeah, he messed up the phone.
Just to be clear WTF instructions -- that had nothing to do with his actions.
By this point he had successfully completed all those instructions and had flashed back to VS996 firmware.
The WTF Instructions tell you how to update your phone correctly once TWRP custom recovery is installed.
____
Try Master Reset from Frankenstein instructions.
Then if you can get back into Download mode, flash back to Nougat US998 via Partition DL, all partitions.
Master Reset again.
Then Refurbish to US998 Oreo 20h.
Your bootloader will still be unlocked.
Go through WTF INSTRUCTIONS SECTION 6 and re-install TWRP and the three root files again.
ChazzMatt said:
Try Master Reset from Frankenstein instructions.
Click to expand...
Click to collapse
Thanks ChazzMatt, however I've tried the Master Reset and it doesn't seem to be doing anything to the phone. It presents the message about Delete all user data (including LG and carrier apps) and reset all settings. I select "Yes" screen goes black for about 2 to 3 seconds then I get the same message, Delete all user data (including LG and carrier apps) and reset all settings with Yes already selected. I've selected that or left it alone and the results are the same. Screen flashes LG V30 ThinQ up for a sec then the screen goes black for about 3 seconds then shows the LG V30 ThinQ again before going back to the Verizon logo screen.
Just to confirm: holding vol+ with USB plugged in during a reboot doesn't go to download mode for using LGUP. Also holding vol- with USB plugged in during a reboot doesn't go to fastboot mode for using ADB since you... Sorry, your friend, was running VS996 firmware, correct?
Correct, if I hold Vol+ and plug usb in I get download mode for maybe 2 secs but LGUP and computer doesn't recognize the phone then it begins to boot up the phone. I have the LG Mobile USB drivers installed as well. Vol- doesn't do anything. Yeah I don't know what my friend did but it doesn't seem to be good. I'm not even sure what ROM or version of ROM it has on it because he doesn't remember. All it does currently if I power it on is it sets at the Verizon traveling dots screen.
xaxxelous said:
Just to confirm: holding vol+ with USB plugged in during a reboot doesn't go to download mode for using LGUP. Also holding vol- with USB plugged in during a reboot doesn't go to fastboot mode for using ADB since you... Sorry, your friend, was running VS996 firmware, correct?
Click to expand...
Click to collapse
Correct, if I hold Vol+ and plug usb in I get download mode for maybe 2 secs but LGUP and computer doesn't recognize the phone then it begins to boot up the phone. I have the LG Mobile USB drivers installed as well. Vol- doesn't do anything. Yeah I don't know what my friend did but it doesn't seem to be good. I'm not even sure what ROM or version of ROM it has on it because he doesn't remember. All it does currently if I power it on is it sets at the Verizon traveling dots screen.
Find someone with an octoplus box and use 9008 mode to flash a kdz. I think thats your only option unless your friend can return it or warranty it through Verizon.
Then, dont ever ever take an OTA on a modded phone again.