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Hello, i have a question. How to back from 4.4.2 android to 4.1.2 android? i need 4.4.2 no root in my phone. :c Thanks for replies
Hello!
Hello, to revert to Jellybean you need to flash a KDZ file of Jellybean, here you can find it:
http://lg-phone-firmware.com/index.php?id_mod=21 (Every with V10 version is Jellybean, V20 is KitKat)
VERY IMPORTANT!
After installer the Jellybean rom and finish with the flashing, you need to do a hard reset or it wont boot.
Hard reset:
Press Volumen Down - Power Key and Quick memo Key at the same time
When LG logo appear, release the Power Key one
When LG logo disappear, release all the buttoms. It'll appear a Android robot and when it finish, boot.
If u don't know how to flash KDZ ask me!
Hello Juaaanchi,
How to flash KDZ in my phone P710?
Thanks
pjprojekce said:
Hello Juaaanchi,
How to flash KDZ in my phone P710?
Thanks
Click to expand...
Click to collapse
1. Download the .kdz file. I should be named V10A, V20C etc.
2. Install your device drivers.
3. Connect USB wire to PC.
3. Turn off the phone and enter download mode by taking out the battery, pluging in USB while holding VOLUME DOWN button.
4. Open LG update tool (DOWNLOAD HERE) <MODERATOR EDITED - VIRUS / TROJAN LINK REMOVED>
5. Don't change anything, just select your .kdz file.
6. Press start, next, select enlgish and wait.
7. Then your phone should reboot into stock ROM.
That's all. Write if something goes wrong.
i was use this tool, with CSE mode. but when firmware finish extracted, this tool stop responding. in the detail report APP CRASH happened.
i try with NORMAL mode. but when the tool flash my device, in 5% my device disconnect unexpectedly. i've already instal the driver with LG port, modem, and usb device. but that also happened again and again
pjprojekce said:
i was use this tool, with CSE mode. but when firmware finish extracted, this tool stop responding. in the detail report APP CRASH happened.
i try with NORMAL mode. but when the tool flash my device, in 5% my device disconnect unexpectedly. i've already instal the driver with LG port, modem, and usb device. but that also happened again and again
Click to expand...
Click to collapse
Use LGFlashtool in EMERGENCY MODe and 3GCQT, and it will work
Can anyone help me with jelly bean kdz file link?
Thank you.
If flashed LG G2 D802 rom on D800/similar OR no recovery, no download, no fastboot OR errors like:
Lg g2 "cross dll" or "device model different" or "fota/laf partion changed" while flashing,
please follow :(Thanks to aftabalam8c2)
http://forum.xda-developers.com/lg-g2/general/lg-g2-cross-dll-device-model-fota-laf-t3003717
also if no download mode, no recovery mode, no fastboot mode follow this:(Thanks to Partager.info)
http://forum.xda-developers.com/showthread.php?t=2582142
if no success, please follow qhsub_bulk mode(its a bit tricky but possible, i did it myself after trying all above):(Thanks to tungkick)
http://forum.xda-developers.com/lg-g2/general/unbrick-lg-g2-qhsusbbulkqualcomm-9006-t2939627
to get into qhsub_bulk mode: (thanks to Aftab Alam)
remove battery connection inside the mobile, keep usb cable pugged from lg g2 to your windows pc and watch this video
https://www.youtube.com/watch?v=FiofVOqfnxw
helpful video, how to remove logic board(its not require to remove full logic board, just for reference): (Thanks to Paul W)
https://www.youtube.com/watch?v=O12UJMOCx1w
hope your phone comes back to life...
I don't want any donations, just wanted to help, as i spend so many days and nights to bring my phone back to life, after lots of research i am sharing all at one place so you guys can save your time.
Thanks and regards
Abhishek Sharma
Helppp meeee pleaseeee...!!
Hi bro, i was trying to upgrade my firmware via LG PC Suite and it upgraded my firmware to
D80220C on my LG_LS980 now im stuck at LG boot screen ( light keeps blinking ), cant do anything, pleaseeeeeeeeeeee help ASAP!!!
At the back cover it says LS 980 but the phone was showing it as D 802 ( firmware D80220b ) ABOUT PHONE ( im sure its a refurbished set / had no idea before ) , before upgrading it had D80220C , D80220b was installed on it , any solution [ STUCK AT LG LOGO SCREEN ] sorry for my bad english ? and please can you guide me STEP by STEP ( just want it to work again / stock / custom any rom will work for me )
M Tariq Khan said:
Hi bro, i was trying to upgrade my firmware via LG PC Suite and it upgraded my firmware to
D80220C on my LG_LS980 now im stuck at LG boot screen ( light keeps blinking ), cant do anything, pleaseeeeeeeeeeee help ASAP!!!
At the back cover it says LS 980 but the phone was showing it as D 802 ( firmware D80220b ) ABOUT PHONE ( im sure its a refurbished set / had no idea before ) , before upgrading it had D80220C , D80220b was installed on it , any solution [ STUCK AT LG LOGO SCREEN ] sorry for my bad english ? and please can you guide me STEP by STEP ( just want it to work again / stock / custom any rom will work for me )
Click to expand...
Click to collapse
Phone off you hand logo lg
You need short testpoint phone detect qhsusb_bulk and show very partitiont download tool unbrick qualcom 9006 of my download all partitiont img and use tool unbrick qualcom 9006 of my unbrick
If you attack pc detect qhsusb_bulk but no show very partitiont you try unplug cable and inplug attack again( and again) and show partitiont done.Next unbrick
tungkick said:
Phone off you hand logo lg
You need short testpoint phone detect qhsusb_bulk and show very partitiont download tool unbrick qualcom 9006 of my download all partitiont img and use tool unbrick qualcom 9006 of my unbrick
If you attack pc detect qhsusb_bulk but no show very partitiont you try unplug cable and inplug attack again( and again) and show partitiont done.Next unbrick
Click to expand...
Click to collapse
Thankyou, Update : I can go to Download mode, but when i enter into Dwn mode it there is a blackscreen written FASTBOOT, RESET , PORT etc , any idea how to fix it? Model : D-800-32GB
M Tariq Khan said:
Thankyou, Update : I can go to Download mode, but when i enter into Dwn mode it there is a blackscreen written FASTBOOT, RESET , PORT etc , any idea how to fix it? Model : D-800-32GB
Click to expand...
Click to collapse
PHONE of you in fastboot
need download driver fastboot connect pc and install
use fastboot flash all partitiont in cmd
fastboot flash boot boot.img (enter)
fastboot flash aboot aboot.img
fastboot flash tz tz.img
fastboot flash rpm rpm.img
fastboot flash laf laf.img
fastboot flash recovery recovery.img
fastboot flash sbl1 sbl1.img
all file partitione download http://downloads.codefi.re/autoprime/LG/LG_G2/D800/Stock_Firmware/10d_partitions
i install stock firmware posted by tungkick this post , New root android 6.0 H901 i am flash lgup tot file LGH901AT-01-V20j-310-260-JUL-12-2016-ARB02+0ROOTTWRP. flash complete and my phone restart but not enter rom mm,any time restat cell phone enter twrp mode and not mount any partitions ,not enter download mode ,i am very up set plz help me any one
i want to unlock OEM but cant go to fastboot mode then i trai to flash with LGUP kdz MM i scrow up and chose h900 dll
now it is on qualcomm hs-usb qdloader 9008 when i put it on charger it not show battery
i try to debrick with qfil i got error:crying::crying:
i try with microSD dump its showing nothing
please any help:crying::crying:
Hello everyone..
I just got hands on LG V30+ carrier device from ntt docomo model number to be exact L-01K It's network unlocked and using adb debloat i have managed to get rid of almost docomo japan apps.
But i am stuck on android 9 pie. I tried to unlock bootloader official way but my device doesn't go for fastboot. I was wondering someone had this device and whether if it's possible to unlock and flash custom recovery..thank you
before you flash anything to your L-01k you need to backup the modem partitions with LG UP.
https://androidfilehost.com/?fid=11410963190603845019
for details about LGUP, go read here: https://forum.xda-developers.com/t/...-lgup-for-crossflashing.3780969/post-76510671
(Dump these partitions
-misc
-modem
-modemst1
-modemst2
-persist
-pstore
-recovery
If you have no backup of the modem, you will lose network and there's no firmware for the L-01k anywhere on the net to restore... ask me how I know..
see also
H930+ (L-01K) unlocked, but no carrier
I got me a V30+ 'Docomo' 128GB which had a japanese firmware installed and got recognized as a L-01K. I followed the WTF guide and successfully unlocked the bootloader after installing the H930 20r firmware, installed TWRP (and changed to 3.3.1...
forum.xda-developers.com
if you have backup your modem partitions please upload the files to some filehoster and share them here. I will try to restore my modem on my L-01k if I succeed Î will write a guide on how to unlock and root the L-01k and post it here.
relevant links:
Making modem.bin flashables for twrp
Starting this off by admitting that i fuxed up and failed to dump/backup my sprint stock files and such with the lgup dump option...luckily another member had the modem.bin file to hopefully fix my phone as i am stuck on 3g and cannot acces lte...
forum.xda-developers.com
[Guide] Getting H933/Any? Modem to work on a converted US998/H930.
A SOLUTION WAS DISCOVERED CLICK HERE TO ENJOY Hi Guys! So... I've no clue if my LTE connectivity is worse then before and since I'm scared of bricking my device by reverting back to the canadian firmware... I've got a canadian G6 so I...
forum.xda-developers.com
Hi,
Here is backup you required I done from my v30+. I used qfil to backup them you can also restore with qfil and your network will be back.
lg-v30-l01k.zip
drive.google.com
Just restore
modem
m1 > modemst1
m2 > modemst2
fsg
fsc
using qfil and lgv30 firehose elf file. go to partitions in qfil and restore each file.
Thanks
RomSlammer said:
before you flash anything to your L-01k you need to backup the modem partitions with LG UP.
https://androidfilehost.com/?fid=11410963190603845019
for details about LGUP, go read here: https://forum.xda-developers.com/t/...-lgup-for-crossflashing.3780969/post-76510671
(Dump these partitions
-misc
-modem
-modemst1
-modemst2
-persist
-pstore
-recovery
If you have no backup of the modem, you will lose network and there's no firmware for the L-01k anywhere on the net to restore... ask me how I know..
see also
H930+ (L-01K) unlocked, but no carrier
I got me a V30+ 'Docomo' 128GB which had a japanese firmware installed and got recognized as a L-01K. I followed the WTF guide and successfully unlocked the bootloader after installing the H930 20r firmware, installed TWRP (and changed to 3.3.1...
forum.xda-developers.com
if you have backup your modem partitions please upload the files to some filehoster and share them here. I will try to restore my modem on my L-01k if I succeed Î will write a guide on how to unlock and root the L-01k and post it here.
relevant links:
Making modem.bin flashables for twrp
Starting this off by admitting that i fuxed up and failed to dump/backup my sprint stock files and such with the lgup dump option...luckily another member had the modem.bin file to hopefully fix my phone as i am stuck on 3g and cannot acces lte...
forum.xda-developers.com
[Guide] Getting H933/Any? Modem to work on a converted US998/H930.
A SOLUTION WAS DISCOVERED CLICK HERE TO ENJOY Hi Guys! So... I've no clue if my LTE connectivity is worse then before and since I'm scared of bricking my device by reverting back to the canadian firmware... I've got a canadian G6 so I...
forum.xda-developers.com
Click to expand...
Click to collapse
Here is elf file if you dont have. You can go to qualcomm mode by plugging in usb cable in mobile and press volume - and power button and when black screen show keep pressing volume +. you also need to install qualcomm drivers to detect mobile in windows.
Thanks a lot for the files and advice! Will try to restore the modem now..
dont restore ftm i mentioned it by mistake.
I can't figure out how to flash the files back using QFIL. I was in download mode volup then connect USB, same as you do it with LGUP). But that didn't work. QFIL says "Download Failed switch to Emergency Download Mode".
I also tried flashing the modem.bin with TWRP (backup in TWRP, then replace modem.emmc.win with modem.bin and rename that accordingly, then restore backup in TWRP. But that did not work (SIM Card not recognized and no IMEI). Then I flashed back the original modem.emmc.win backup to fix sim card and IMEI.
I think I am missing the XML file for QFIL?
first install qualcomm drivers.
plug usb cable to pc and mobile. hold volume down and power button at same time and when black screen show on mobile keep pressing (don't hold) volume up without leaving other buttons.
when qualcomm mode is detected > run qfil and select port and than > select flat build and > elf file in programmer path and > select ufs storage type in bottom right.
then go to tools > partition manager and there you can find all the partitions first backup and than restore which i said before.
these backups will not work in twrp i think.
don't mix this with download mode in which we can go with just volume up and put cable in pc. if you don't know please google it first its qualcomm mode.
if you have fastboot try this command in fastboot:
fastboot reboot edl
if that works than just follow other steps. to quit this mode press volume down and power button for few seconds. in this mode screen just stay black and nothing will display on your screen.
OK found a youtube video on how to get into EDL 9008 mode:
- Connect the smartphone via USB to the computer.
- On the switched-on smartphone, hold VOL- and POWER
- As soon as the screen turns off, keep holding the VOL- and POWER buttons and simultaneously press VOL + quickly.
- The smartphone will have a black screen, and in the device manager on the PC will be "QUSB_BULK_CID: xxxx_SN: xxxxxxxx" or "Qualcomm HS-USB QDLoader 9008 (COM x)
OK, that worked for me (windows device manager reported "Qualcomm HS-USB QDLoader 9008) , but when I wanted to use the partition manager in QFIL i get the "Download Fail Sahara QSaharaServer Fail: Process Fail "
I'll try this now:
-downgrade to Nougat H930 KDZ ( H93010v_00_OPEN_EU_OP_1120.kdz)
in fastboot: (Using the modem.bin, modemst1.bin, modemst2.bin from L-01k QFIL dump)
fastboot erase modem (enter)
fastboot erase modemst1 (enter)
fastboot erase modemst2 (enter)
fastboot oem lock (enter)
fastboot flash modem modem.bin (enter)
fastboot flash modem modemst1.bin (enter)
fastboot flash modem modemst2.bin (enter)
EDIT: it didn't work
But at least I know now how to get into Download Mode from a Bootloop:
1. Connect USB to PC
2. press Vol+, Vol-, Power until the phone restarts with black screen
3. immediately release Vol- and Power and keep pressing Vol+
.. voila.. Download mode
did you add the v30 file in proggamer path in qfil which i provided and changed the storage type to ufs?
yes, I used that firehose V30 file and I verified that storage is set to UFS.
have you fixed it?
nope, but after flashing the modem with ADB and also trying the V300k Korean ROM, I have learned how to fix a near bricked V30 by using 9008 Qualcomm unbrick mode back to life .
I think the only way to fix this is if a L-01k KDZ is released or someone manages to root his L-01k without overwriting the modem and uploads his complete TWRP backup.
Thanks guys for ur help. It seems like no bootloader unlock for my LG L-01K. So modem backup didn't work. I'm so sorry to hear that. I wish i had rooted my device. But i can't even unlock the bootloader. I want to try custom roms so badly. I guess i have to stuck with android pie. Thanks again.
RomSlammer said:
nope, but after flashing the modem with ADB and also trying the V300k Korean ROM, I have learned how to fix a near bricked V30 by using 9008 Qualcomm unbrick mode back to life .
I think the only way to fix this is if a L-01k KDZ is released or someone manages to root his L-01k without overwriting the modem and uploads his complete TWRP backup.
Click to expand...
Click to collapse
do you have wifi working and your imei is not null?
wifi works, IMEI exists, says Sim card 1 is "PERM locked".
I'm on H93020d_00_OPEN_EU_OP_0326.kdz now.
The same Sim card works perfectly in my LG G8s
NamlaGeeX said:
Hello everyone..
I just got hands on LG V30+ carrier device from ntt docomo model number to be exact L-01K It's network unlocked and using adb debloat i have managed to get rid of almost docomo japan apps.
But i am stuck on android 9 pie. I tried to unlock bootloader official way but my device doesn't go for fastboot. I was wondering someone had this device and whether if it's possible to unlock and flash custom recovery..thank you
Click to expand...
Click to collapse
Debloat Japanese Apps like Docomo Contacts App from L01K V30+ ?
How did you do that using ADB ?
With or w/o Root ?
Can you or anyone explain ?