Develop Bugs

[SOLVED] Bricked when finished install kdz rom

Hello
I've installed a oficial ROM of LG Optimus G (10g) with kdz file. When it put iParam= 1 i close the program and then disconnect usb cable but LG's logo is stopped and don't do anything
I see in post that enter in recovery and do wipe with a cmd file, but when reboot after this is stopped again with LG's logo
Can anyone help me ? i can't use mobile
Thanks

dsb_spain said:
Hello
I've installed a oficial ROM of LG Optimus G (10g) with kdz file. When it put iParam= 1 i close the program and then disconnect usb cable but LG's logo is stopped and don't do anything
I see in post that enter in recovery and do wipe with a cmd file, but when reboot after this is stopped again with LG's logo
Can anyone help me ? i can't use mobile
Thanks
Click to expand...
Click to collapse
Charge battery to about 75%. Disconnect cable from anything. Make sure the phone is turned off and full computer installed drivers for your devices. Press both volume keys at the same time (Press Volume - and Volume +). Connect cable with Computer. On screen of phone will be display logo: DOWNLOAD MODE. done.
Run Flash Tool or KDZ Tool, then flash file ROM do you want. Good luck!

Power + volume down will get you the LG factory reset.

Thanks for your help !
the problem has been solved
bye and thanks

Solution for Hard Bricked LG G4 (9008)

Hi guys,
Some people including me faced Hard brick issue with LG G4, which has now two solutions. the first is temporary, i discovered it and it involves using an SD card flashed with Original EMMC dump ( i tested it with H815 ands H811) , the second needs advanced hardware, equipment and soldering skills ( JTAG) .
The solution that i want to explore is trying to revive the phone with the SD card.
http://forum.xda-developers.com/g4/development/unbrick-lg-g4-h811-9008-qualcomm-t3456417
http://forum.xda-developers.com/g4/development/unbrick-lg-g4-h815-9008-qualcomm-t3452853
The H811 dump that i made has TWRP recovery and unlocked bootlloader, so if someone know how to help that would be awesome.
How ???, its very simple. I dont have very good UNIX architecture skills , but if the SoC successfully booted from the SD card. We could see if it detects the EMMC memory ( with parted or with LS command). I personally Tried to brow /dev/block directory from TWRP i hoped to find MMCBLK1 or something but that was unsuccessful , im pretty sure the TWRP or the Soc Does not mount it automatically .
I really dont know How , but i'm very Sure that there is a Solution headed that way , So if some one is Good with Unix architecture and can find a way to soft Flash the EMMC from TWRP ( installed in the SD card ) it would be very Nice

hi,i tried the sd card method...it boots but immediately gives me secure boot error (1006).
i have an h815 bl locked

Hello
I have LG H815 and have bricked. I have installed wrong firmware so it is brick now.
I try new tot file with QPST . but it says fail what s wrong with me?
My computer is win 10 64 bit

You can fix fastboot mode with this way.
1. First you need to download stock rom that your phone supported. extract laf.img file from rom and copy it into fastboot directory
2. download LG Flash Tool and make it ready
3. open flash tool and load firmware and dll that support your model.
open command prompt and make sure you in fastboot directory where the fastboot and related files are stored.
Run following commands.
fastboot erase recovery
fastboot erase laf
fastboot flash laf laf.img
fastboot reboot
Click to expand...
Click to collapse
Hurry up, now you need to start flash with lg flash tool, if device does not start into download mode. remove battery and insert again, press and hold Vol Up btn and plug USB cable it will boot into download mode. and your device com port should be 41, if not change it in device manager. and start LG Flash tool to load stock rom. once it finish loading rom your device will start and will show you factory test 1, 2, or 3. if it stuck there more than 3-5 minutes. reboot your phone. now you will have welcome screen.
I hope this will work with supported models.
Hit Thanks button if this work for you to help others for this useful reply.

ayuda
sylentears said:
You can fix fastboot mode with this way.
1. First you need to download stock rom that your phone supported. extract laf.img file from rom and copy it into fastboot directory
2. download LG Flash Tool and make it ready
3. open flash tool and load firmware and dll that support your model.
open command prompt and make sure you in fastboot directory where the fastboot and related files are stored.
Run following commands.
Hurry up, now you need to start flash with lg flash tool, if device does not start into download mode. remove battery and insert again, press and hold Vol Up btn and plug USB cable it will boot into download mode. and your device com port should be 41, if not change it in device manager. and start LG Flash tool to load stock rom. once it finish loading rom your device will start and will show you factory test 1, 2, or 3. if it stuck there more than 3-5 minutes. reboot your phone. now you will have welcome screen.
I hope this will work with supported models.
Hit Thanks button if this work for you to help others for this useful reply.
Click to expand...
Click to collapse
hi , am sorry for my inglish is bad
my lg h815 don't have recovery mode , no fastboot mode , no logo,
without connection to the computer when before if it was
only when press power button the phone make a 1 vibration, but nothing more
i need help¡¡ the phone woking with normality , i make downgrade to mm, bootloader unlocked unofficial, install twrp and flash firmware to android n, flash rom v30 h-rom, and magistic, after swipe for reboot birck no more display
one more thing, when press power button the phone make a vibration but no image in the display , wait a 30 seconds and again press power button and appears a imagen with 0% and a connection cable but I connect it and nothing, the screen turns off, another thing when I remove the battery with the phone connected to the PC the non-battery icon appears but when I put it back it turns off I want to think that it is not hardware
the phone worked very well until I gave it a restart, I hope it is not the plate regarts from arequipa, PERU sorry for my inglish

MichaelCV said:
hi , am sorry for my inglish is bad
my lg h815 don't have recovery mode , no fastboot mode , no logo,
without connection to the computer when before if it was
only when press power button the phone make a 1 vibration, but nothing more
i need help¡¡ the phone woking with normality , i make downgrade to mm, bootloader unlocked unofficial, install twrp and flash firmware to android n, flash rom v30 h-rom, and magistic, after swipe for reboot birck no more display
one more thing, when press power button the phone make a vibration but no image in the display , wait a 30 seconds and again press power button and appears a imagen with 0% and a connection cable but I connect it and nothing, the screen turns off, another thing when I remove the battery with the phone connected to the PC the non-battery icon appears but when I put it back it turns off I want to think that it is not hardware
the phone worked very well until I gave it a restart, I hope it is not the plate regarts from arequipa, PERU sorry for my inglish
Click to expand...
Click to collapse
lol, when you see a screen with 0% and a usb connected image, that mean your battery dead
why not just try to charge your phone? or replace a battery?

ling751am said:
lol, when you see a screen with 0% and a usb connected image, that mean your battery dead
why not just try to charge your phone? or replace a battery?
Click to expand...
Click to collapse
Hello, well after what happened I thought the same and went to buy another battery and when they tried it did not work, I repeat, not fastboot, no logo, no recovery, only a small vibration without screen, it is not detected by the PC in any of its modes as dead, the detail is that this happened after restarting when I had flashed bootloader N, rom V30, magiistic, I gave it restart and it did not turn on again, so I discard that it is hardware .
I think the problem was that I flashed the bootloader with full aboot, that gave me hardbrick I was told in a forum in Spanish I leave the link I hope you help me thanks
https://www.htcmania.com/showthread.php?t=1397519 use this method to unlock the bootloader

Hey MichaelCV
I have exactly the same problem with my LG G4 H815p. I was running [ROM][H815] H-ROM G4 NOUGAT [v29a] _ LG G4. The phone was up and running and last night I flashed the "LG-H815_29a_Modem_and_Bootloader.zip" to try resolve an issue I was having with the mobile data indicator not showing. I flashed the zip in TWRP, rebooted the phone and now it is bricked. I have exactly the same symptoms as you. Windows and FWUL does not see the phone, no matter what combination of keypressed etc that I try.
Lets hope we find a solution here for it.
Chris

[Q]E988 bricked

I have bricked lg e988 indonesia firmware rooted,updated to kitkat 4.4.2,cwm 6.4.0.4
Due to some issue I factory reset from settg menu and the phone rebooted to cwm recvry mode
I tried to rebootd to system but fail
I tried to flash stock rom via adb sideload but fail too so does with lg flash tool
So I thght smtg wth cwm then I tried to flash twrp loki 2.6 and then stuck to lg logo only until now
Pls help

You're still soft bricked, just force your device into download mode and use LG Flash Tool to return back to stock and start again.

ShadySquirrel said:
You're still soft bricked, just force your device into download mode and use LG Flash Tool to return back to stock and start again.
Click to expand...
Click to collapse
Thank you for the respond. Mind if you share me on how to force my device into download mode?
I have tried the power + volume keys combination but nothing happened, back and stop at lg logo
Before i flash the twrp, i tried the LG Flash Tool, but i wont recognize the phone, something like usb connection issue

hotmatua.parulian said:
Thank you for the respond. Mind if you share me on how to force my device into download mode?
I have tried the power + volume keys combination but nothing happened, back and stop at lg logo
Before i flash the twrp, i tried the LG Flash Tool, but i wont recognize the phone, something like usb connection issue
Click to expand...
Click to collapse
If I remember correctly (please check threads here, it's been a long time since I've used this device, so memories are fading), download mode is activated when you press Volume Up (or both of volume buttons) and insert USB cable. I know that E98x has some strange button sequences, like rebooting to recovery is a two step operation (Volume Up + Power until navbar blinks, then power button twice, that's the only way mine wanted to boot into recovery), so please check around.
As far as USB connection issues, don't use USB3+ ports and if you're on Windows 8.1+ and later, run with Administrator privileges. I never experienced that one (used LGFlashTools from inside VirtualBox running Win XP for all my needs, I'm not a Windows user), so can't really help much but forums are full with explanations how.

ShadySquirrel said:
If I remember correctly (please check threads here, it's been a long time since I've used this device, so memories are fading), download mode is activated when you press Volume Up (or both of volume buttons) and insert USB cable. I know that E98x has some strange button sequences, like rebooting to recovery is a two step operation (Volume Up + Power until navbar blinks, then power button twice, that's the only way mine wanted to boot into recovery), so please check around.
As far as USB connection issues, don't use USB3+ ports and if you're on Windows 8.1+ and later, run with Administrator privileges. I never experienced that one (used LGFlashTools from inside VirtualBox running Win XP for all my needs, I'm not a Windows user), so can't really help much but forums are full with explanations how.
Click to expand...
Click to collapse
Thank you very much...now the phone is back to initial state. This what i've done:
1. Download LG Flash tool from http://lgflashtool.com/
2. Download LG USB Drivers from http://lgflashtool.com/
3. Install LG flash tool and LG USB Drivers
4. Plug usb cable to phone
5. Hold volume buttons and then plug the usb cable to PC (i use win 10)
6. Voila, the Download Mode icon is showed up
7. Run LG Flash Tool (Administrator privilege) & follow the instruction (i use e988 v20c stock firmware)
8. Phone back to normal (only if you use the correct stock firmware)
A very big thanks to ShadySquirrel
Hopefully this thread can also be used as reference for anyone who has the same issue as i had

[HELP] V500 stuck in download mode, LG Flash tool gets stuck at 4%

Hello xda
So I decided it was time to have some fun with my good old v500 and get rid of the annoying kitkat limitations.
I installed twrp recovery and flashed AOSP 7.1 which looked great but after some days of use I started getting some serious glitches in wireless and decided to go back to something lg-made
So I downloaded the korean v50030a kdz, got in download mode and then when I run LG update tool it got stuck at 4%
So I said ok and tried to reboot the phone, but after reboot it goes every time to download mode.
Then my adventure starts, I read that the proper way to get out of download mode is while pressing power button to plug the micro usb.
This didnt work for me no matter if I tried switching the phone off first (holding power for 10secs to go off, then power button and then plug micro usb) or while it was on (showing the download mode logo) pressing the power and plugging the micro usb.
I tried using the official LGMobile support tool to download the official kdz (20F kitkat version / upgrade recovery) it also gets stuck at 4% when trying to install the kdz,
I tried using the LG flash tool to install it myself again no luck
I tried the old ways with the manual trick editing the hosts file and running the http server to send the v30 kdz to the update tool, again it got stuck at 4%
I changed the COM port to 47 for the LGE AndroidNet USB serial port -> this seemed to make read phone information work once but no luck with getting past 4%
So I have run out of ideas. Any help is greatly appreciated

I have found a solution by downloading and reinstalling the driver from here https://forum.xda-developers.com/showthread.php?t=2797190 while having connected the gpad in the pc
Then opened device manager in windows and changed from COM4 to COM41 the LGE device under Ports (COM &LPT ) section
Then used the official 20F rom and Normal flash / CDMA mode :good:
I believe that the problem was in the drivers but I am not sure, I hope the above information will help others as well

for what is worth, I tried to flash 30a again using the same method as above and got again stuck at download mode LOL

I connected the usb cable to a different port in the PC and installing 30a worked
Thats it for my gpad, too much adventure for it

lg g4 h815 - bricked... need help and ideas.

my phone is a lg g4 h815.
tried to flash lineage, i ****ed up with twrp and i think i accidently wiped everything.
the phone starts fine, blue led is blinking, lg logo comes on, then nothing happens.
i have tried:
- factory reset: pressed yes to both, phone boots again, same ****.
- download mode: turned off phone, pressed vol up then usb cable in - download mode does not start.
- adb devices do not see the phone, but it is in windows devices, under ports, com4.
- i have installed the lg usb driver.
tools used:
- lg up: says unknown model. wont let me do anything.
- lg bridge: cant connect to the phone.
- lg mobile support tool: after downloading the image, it wont upload it to the phone. says control pc status (and yes, my pc works fine!)
- lg flashtool 2014: says required info cannot be found. contact system administrator. i have downloaded a kdz image.
any ideas? exchanging the motherboard is a 150$ job, which i'm unsure i'm willing to spend on a 1½ yr old phone.
thanks in advance.

i found the solution.
1) do a factory reset. press yes and yes. turn off phone, and hold vol up down, so you will boot into download mode immediately afterwards factory reset.
2) now the phone says firmware update.
3) open up LG UP, latest version. now the phone is recognized (mine as h81520g).
4) download a .kdz image, that matches the version LG UP specify (in my case, h18520g). you can find official .kdz images at www.lg-firmwares.com - find one, that matches your country and model.
5) flash with LG UP (click on 'upgrade' for .kdz to become available, and then choose your .kdz image).
hope this can be of some help.