Tmobile LG G4 Cannot Flash - G4 Q&A, Help & Troubleshooting

Hi I am attempting to flash stock android onto my US LG G4 from Tmobile. I am running the following command on windows fastboot flashing unlock twrp.img. When I do my commands prompts pukes a man page but doesn't actually flash. I am following these two guides https://theunlockr.com/2015/08/23/how-to-root-the-lg-g4-t-mobile/ and http://forum.xda-developers.com/tmobile-g4/development/stock-h811-20i-images-kdz-flashable-t3308227 .

WeepAndGreep said:
Hi I am attempting to flash stock android onto my US LG G4 from Tmobile. I am running the following command on windows fastboot flashing unlock twrp.img. When I do my commands prompts pukes a man page but doesn't actually flash. I am following these two guides https://theunlockr.com/2015/08/23/how-to-root-the-lg-g4-t-mobile/ and http://forum.xda-developers.com/tmobile-g4/development/stock-h811-20i-images-kdz-flashable-t3308227 .
Click to expand...
Click to collapse
why not use KDZ adn LGUP.? you trying to go back to stock right?

raptorddd said:
why not use KDZ adn LGUP.? you trying to go back to stock right?
Click to expand...
Click to collapse
Pardon my ignorance but what are those? I need to root my phone and I am just following that unlockr guide.

WeepAndGreep said:
Pardon my ignorance but what are those? I need to root my phone and I am just following that unlockr guide.
Click to expand...
Click to collapse
i tought you wanted to flash stock rom.. well KDZ its the file name for stock image from LG.. and LGUP its to flash KDZ
never rooted my phone sorry.

Related

Tried rooting, failed. need kdz for h810

Where can I find the kdz for lg g4 h810? Ive looked everywhere. Thanks.
bump?
Cluesade said:
bump?
Click to expand...
Click to collapse
Keep an eye on this thread --> http://forum.xda-developers.com/g4/development/stock-complete-kdz-list-t3147406
I am sure when one is available it'll be posted there.
You don't need the H810 KDZ... All you need is the modified VS986 IMG and a few commands.
geoff5093 said:
You don't need the H810 KDZ... All you need is the modified VS986 IMG and a few commands.
Click to expand...
Click to collapse
Well can you please help me with the commands? tell me what I need to do please. Im about to go out of town and im in desperate need of a phone.
Cluesade said:
Well can you please help me with the commands? tell me what I need to do please. Im about to go out of town and im in desperate need of a phone.
Click to expand...
Click to collapse
Did you follow this thread? http://forum.xda-developers.com/g4/orig-development/root-tmo-vzw-intl-variants-soon-root-lg-t3164765
I did this step by step. The only files you download/need are the VZW LG drivers, the LGG4_Root zip (using send_command and adb files in that zip), and the 11A VS986 IMG file.
geoff5093 said:
You don't need the H810 KDZ... All you need is the modified VS986 IMG and a few commands.
Click to expand...
Click to collapse
geoff5093 said:
Did you follow this thread? http://forum.xda-developers.com/g4/orig-development/root-tmo-vzw-intl-variants-soon-root-lg-t3164765
I did this step by step. The only files you download/need are the VZW LG drivers, the LGG4_Root zip (using send_command and adb files in that zip), and the 11A VS986 IMG file.
Click to expand...
Click to collapse
Thank you so much for the respone! I almost couldnt sleep last night worrying about this. im going to try and get back with you.
geoff5093 said:
Did you follow this thread? http://forum.xda-developers.com/g4/orig-development/root-tmo-vzw-intl-variants-soon-root-lg-t3164765
I did this step by step. The only files you download/need are the VZW LG drivers, the LGG4_Root zip (using send_command and adb files in that zip), and the 11A VS986 IMG file.
Click to expand...
Click to collapse
also, my phone is booting with "security error" thats why I need to kdz to flash back to it. So should I now try with the Verizon variant?
Cluesade said:
also, my phone is booting with "security error" thats why I need to kdz to flash back to it. So should I now try with the Verizon variant?
Click to expand...
Click to collapse
I followed the directions so never got that error, I'm not sure what your best course of action is. I highly doubt you'd want to flash the KDZ for a different model, you'd probably brick your device or cause major issues if it works.
geoff5093 said:
I followed the directions so never got that error, I'm not sure what your best course of action is. I highly doubt you'd want to flash the KDZ for a different model, you'd probably brick your device or cause major issues if it works.
Click to expand...
Click to collapse
well the reason I got that error is because I used the h810c and my phone is the h810e. So Im going to have to wait until the h810e kdz is out.
Cluesade said:
well the reason I got that error is because I used the h810c and my phone is the h810e. So Im going to have to wait until the h810e kdz is out.
Click to expand...
Click to collapse
This is the Verizon G4 VS986 forum...

Wanted - Stock firmware for LG G Pad 7.0 V410 (.kdz)

Hi every body!
I'm looking for stock firmware for G Pad 7 V410 LTE file .kdz. I just found file kdz of V400.
Help me! Thaks!
kutinh135 said:
Hi every body!
I'm looking for stock firmware for G Pad 7 V410 LTE file .kdz. I just found file kdz of V400.
Help me! Thaks!
Click to expand...
Click to collapse
There isn't one that I'm aware of. Last night I was looking. If you're on a custom rom/recovery just install the stock rooted rom and install flashify and install the stock recovery which is floating around here somewhere then unroot. you'll be able to receive the update after.
help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I wish there was one, too. My tablet is bricked into fastboot boot loop and the LgMobile support tool does not work. Only hope is LG Flash tool. But I need the kdz.
Is there a way to convert an image (zip) into kdz?
EDIT: I found (with a lot of help) a way to unbrick it with adb.
Please message me all the details that are needed in order to unbrick my LTE V410!!!
I have two tablets one is mine and one belongs to my son. Both are bricked!
Please H*E*L*P
nicospanas said:
I wish there was one, too. My tablet is bricked into fastboot boot loop and the LgMobile support tool does not work. Only hope is LG Flash tool. But I need the kdz.
Is there a way to convert an image (zip) into kdz?
EDIT: I found (with a lot of help) a way to unbrick it with adb.
Click to expand...
Click to collapse
Please help me with unbricking, could you outline the process for using ADB, or maybe send me the links that helped you? if you could it would be sooo much appreciated. thank you
jgray3493 said:
Please message me all the details that are needed in order to unbrick my LTE V410!!!
I have two tablets one is mine and one belongs to my son. Both are bricked!
Please H*E*L*P
Click to expand...
Click to collapse
dudedude363 said:
Please help me with unbricking, could you outline the process for using ADB, or maybe send me the links that helped you? if you could it would be sooo much appreciated. thank you
Click to expand...
Click to collapse
This is the link with all the help and the steps I took to unbrick my tablet. Although the thread was for another model, the help I'm given is for the LG G-Pad 7.0 v410.
http://androidforums.com/threads/twrp-bootloop-fix-after-update-ota.922585/
I basically had to flash TWRP recovery and then the stock ROM (which was rooted). Check #37 of the above link.
If you want to upgrade to lollipop you will have to flash custom recovery and unroot the tablet.
Things you may need:
TWRP recovey found here. Scroll half way down, make sure you use the right image for your model.
Stock ROM found here. Note that stock rom is rooted.
Minimal ADB and Fastboot found here. Or you can use adb.
If you need any more help, please let me know.
HOLY SH*T!!!!
:laugh:
WOW! I followed these simple instructions and fixed the first tablet in under 5 min. My son's tablet wasn't primed and ready like mine was. I had already tried every little trick n trade I could find on the net...which consisted of "NOTHING"!!! really... Kept coming up with the same ole bricks though. Until this VITAL information surfaced!!! All I had to do on my first tablet was open up TWRP Terminal and enter the TWO codes.....rebooted.... Now enjoying!!! You got definite props from me bro! :good::good:
v410 kdz can be found here
achonappdotcom/downloaddotphp#
just1jonathan said:
achonappdotcom/downloaddotphp#
Click to expand...
Click to collapse
is the test one?
nicospanas said:
This is the link with all the help and the steps I took to unbrick my tablet. Although the thread was for another model, the help I'm given is for the LG G-Pad 7.0 v410.
http://androidforums.com/threads/twrp-bootloop-fix-after-update-ota.922585/
I basically had to flash TWRP recovery and then the stock ROM (which was rooted). Check #37 of the above link.
If you want to upgrade to lollipop you will have to flash custom recovery and unroot the tablet.
Things you may need:
TWRP recovey found here. Scroll half way down, make sure you use the right image for your model.
Stock ROM found here. Note that stock rom is rooted.
Minimal ADB and Fastboot found here. Or you can use adb.
If you need any more help, please let me know.
Click to expand...
Click to collapse
I have the following links if someone in need of these
Download link for LG Gpad v410 4.4.2 http://www.mediafire.com/download/2433xqabj1k8b8d/V41007h_0.kdz
LG Flash tool http://www.mediafire.com/download/fwrcd3pdj0svjtb/LG+Flash+Tool+2014.zip
Guide to recover the stock ROM http://androidforums.com/threads/guide-restoring-stock-firmware.877472/
LG Mobile Drivers https://www.androidfilehost.com/?fid=24052804347802528
talvigi said:
I have the following links if someone in need of these
Download link for LG Gpad v410 4.4.2 http://www.mediafire.com/download/2433xqabj1k8b8d/V41007h_0.kdz
LG Flash tool http://www.mediafire.com/download/fwrcd3pdj0svjtb/LG+Flash+Tool+2014.zip
Guide to recover the stock ROM http://androidforums.com/threads/guide-restoring-stock-firmware.877472/
LG Mobile Drivers https://www.androidfilehost.com/?fid=24052804347802528
Click to expand...
Click to collapse
Or you could follow this tutorial and thank the respective devs
forum.xda-developers.com/g-pad-10/general/tutorial-lg-gpad-v410-5-1-to-4-4-t3232150
https://docs.google.com/uc?id=0B7wEkGpeHpR1SVQwZTFUdkRmbjQ&export=download Google drive link for stock FW V410 4.2.2
Do i have to do anything else with this google drive image other than use the flash tool on a 16 GB v410?
Do you still have this stock firmware?

LGUP - NEW!!! - INSTALL KDZ - MM or LP - FACTORY RESET/UPGRADE

NEW software!!!!!...... LGUP WILL FLASH YOUR KDZ files
Download LGUP from here http://www.filedropper.com/g4 or here https://www.dropbox.com/s/d2dw48uqh4hku8m/G4.rar?dl=0 or here http://oceanhost.eu/eps4h4pmwphu/LGUP.zip.htm thank you hyelton for this link :good:
Install LGUP_8994_DLL_Ver_0_0_3_23 first and then LGUP_Install_Ver_1_14_3
Make sure you have downloaded the required KDZ file MM or LP
Start LGUP prog on your computer "make sure your phone is plugged in"
ARE YOU HAVING TROUBLE WITH LGUP NOT SEEING YOUR MOBILE?
Try this....... take the back off your mobile so you can get at the battery. Connect your mobile via USB. Start LGUP, if it does not see your phone DO NOT DISCONECT, DO NOT RESTART OR TURN OFF LGUP. Take out the battery and then put it back in.......let the phone restart on its own. LGUP should now see it.
THANK YOU FOR THIS Killerdog:good: <~~~To Modify This File You Must Have Root!!
For me it's show in LGUP as unknow device.
reboot my phone, remove battery and anything else don't work.
I install LG Bridge to test, and nothing seem to work.
After make some test and search, i find some info modified by S3V3N into his rom (cust partition) that he have modify into this file:
/cust/OPEN_COM/cust_OPEN_EU.prop
Code:
ro.lge.swversion=[COLOR="Red"]some info[/COLOR]
ro.lge.swversion_short=[COLOR="Red"]some info[/COLOR]
change to
Code:
ro.lge.swversion=[COLOR="Red"]H81510c[/COLOR]
ro.lge.swversion_short=[COLOR="Red"]V10c[/COLOR]
restart my phone and woow it show correctly in LGUP and i can refurbish my phone.
TO UPGRADE TO MM from LP - make sure BIN file is ticked and in the File Path point it towards the MM KDZ you have downloaded. MAKE SURE YOU HAVE CLICKED UPGRADE! This will update you from LP to MM with out wiping any of your info. Press Start. Make cup of tea and be patient
TO DO A FULL WIPE AND INSTALL MM - Open the LGUP on your computer. FILE PATH point it towards the MM KDZ.
IMPORTANT!!!!!!! shut down LGUP!
Now open LGUP again - you will notice that the MM KDZ will still be showing in the FILE PATH section. Select REFURBISH and make sure BIN file is ticked. Press Start. Make cup of tea and be patient
TO GO BACK TO LP FROM MM - Open LGUP on your computer, click on FILE PATH and point it towards your LP KDZ. Close LGUP and re-open LGUP. Make sure you select REFURBISH this will do a full wipe, tick BIN file. Press Start. Make cup of tea and be patient
If you are worried about losing your data after a full wipe, why not use the LG Bridge software to backup and restore.... it works fine!
YOU WILL LOSE ROOT!
There is no need to enter download mode! LGUP will do it for you.
Original thread by schafi03 http://www.android-hilfe.de/thema/a...er-zurueck-auf-android-5.733674/#post-9342963
Thank You schafi03
INSTALL TWRP
Make sure you have ADB and Fastboot installed.
I always put TWRP.img in the ADB folder - so if I want to boot into TWRP with out installing it this is what I do:
make sure you open a command prompt in the ADB folder "VERY IMPORTANT" and type:
adb reboot bootloader <enter>
fastboot boot TWRP.img <whatever your TWRP image is called in your ADB folder><enter> dont forget the .img at the end
That will re-start your phone straight into TWRP - You can transfer files to and from your computer while in recovery.
If you want to install TWRP permanently, copy your TWRP image to your mobile "while you are in TWRP RECOVERY mode" then press install then select images then select recovery NOT BOOT then swipe to flash. This method does not install TWRP app on your phone, all you need is a reboot app from the play store that will re-boot you into recovery.
How to root LG G4 H815 on Android Marshmallow
http://www.ibtimes.co.uk/how-root-lg-g4-h815-android-marshmallow-1526102
OTHER GREAT THREADS TO HELP YOU
http://forum.xda-developers.com/g4/development/stock-h815-20a-stock-images-kdz-t3232282 by autoprime "Great Job"
http://storagecow.eu/index.php?dir=Xda/LG+G4/ an extensive list of KDZ files
Have fun people! :good:
don't know if it makes a difference, but i read somewhere to install LGUP dll first, then the other one.
reg66 said:
don't know if it makes a difference, but i read somewhere to install LGUP dll first, then the other one.
Click to expand...
Click to collapse
Not sure but I'll put that in the op cheers.
Do you need root so use this method to upgrade to marshmallow ?
H81520A_00.Kdz flashed (by upgrade option) succesfully. It takes 10-15 mins(longest part is "android upgrading" screen.), and i lost root access. By the way root access is not necessary for upgrade.
So since it wasn't clarified, I'll be the one to ask...
Will this work on a unit without root (which is yes according to the OP), and without a bootloader unlock, ie the Taiwan (TWN) variant of the H815.
I completely understand it's a complete wipe and root will not be retained.
I would also like to know about this..... will it work on a unit with a locked bootloader... TWN variant?
downloaded from a different mirror re flashed no problems
Hello downgrande wokrs?
munkypoo7 said:
So since it wasn't clarified, I'll be the one to ask...
Will this work on a unit without root (which is yes according to the OP), and without a bootloader unlock, ie the Taiwan (TWN) variant of the H815.
I completely understand it's a complete wipe and root will not be retained.
Click to expand...
Click to collapse
its working on all last night i did downgrade to 5.1 and so far all working great
no root or unlocked bootloader is needed
madshabz said:
I would also like to know about this..... will it work on a unit with a locked bootloader... TWN variant?
Click to expand...
Click to collapse
yes it will work with locked bootloader
ktomika said:
Hello downgrande wokrs?
Click to expand...
Click to collapse
great i did it and now using 7Rom 6.3 3d Rom
best of luck guys
Rikoman17 said:
Do you need root so use this method to upgrade to marshmallow ?
Click to expand...
Click to collapse
no you do not need root....this method will take you back to stock ROM
do I have to unlock bootloader?
microcens said:
do I have to unlock bootloader?
Click to expand...
Click to collapse
no you do not
Kdz only? Does it work with tot file?
bobimbap said:
Kdz only? Does it work with tot file?
Click to expand...
Click to collapse
I'm presuming yes but I havn't tried this, maybe someone could enlighten us
madshabz said:
I would also like to know about this..... will it work on a unit with a locked bootloader... TWN variant?
Click to expand...
Click to collapse
work for all . root and unroot . locked or unlocked . doesnt care . its a special software
---------- Post added at 09:05 AM ---------- Previous post was at 09:04 AM ----------
bobimbap said:
Kdz only? Does it work with tot file?
Click to expand...
Click to collapse
that work fine with TOT file too my friend tested on corean version of g4
Worked a treat no issues so far
Sent from my LG-H815 using Tapatalk
kevtrysmoddin said:
Worked a treat no issues so far
Sent from my LG-H815 using Tapatalk
Click to expand...
Click to collapse
Great... Did you upgrade to MM or factory reset MM or LP?
shakeyabooti said:
Great... Did you upgrade to MM or factory reset MM or LP?
Click to expand...
Click to collapse
Upgraded
Sent from my LG-H815 using Tapatalk
info
i tried with this tutorial , but the program search my lg g4 with unknown model and i can't use this procedure..
why?
at moment i have a unlocked bootloader and a 10 ve rooted rom twrp

Problem with TWRP MM, Please Help

Dear All,
I install Android 6 KDZ yesterday , but i have some problem with network
I wan't to flash a modem , but i don't have any recovery like TWRP
i try to install but no way
any help please about how install twrp on LG G3 D855 MM ?
me too it....
Now... I WANT GO BACK LOPLIPOP....
But... Very Hard.
Help me!!!!!!!!!!!!!
maen.safadi said:
Dear All,
I install Android 6 KDZ yesterday , but i have some problem with network
I wan't to flash a modem , but i don't have any recovery like TWRP
i try to install but no way
any help please about how install twrp on LG G3 D855 MM ?
Click to expand...
Click to collapse
Please Help
farary11 said:
Please Help
Click to expand...
Click to collapse
Here's all you need You must be rooted
maen.safadi said:
Dear All,
I install Android 6 KDZ yesterday , but i have some problem with network
I wan't to flash a modem , but i don't have any recovery like TWRP
i try to install but no way
any help please about how install twrp on LG G3 D855 MM ?
Click to expand...
Click to collapse
Ernesto0023 said:
Here's all you need You must be rooted
Click to expand...
Click to collapse
False information shared by @Ernesto0023.
Following this guide will get you a secure boot error when attempting to boot into recovery. Even so following this guide is impossible because root is required and OP has no root on his kdz flashed MM.
My recommended solution would be reverting back to kitkat via kdz. If unfamiliar with the method follow this guide: http://forum.xda-developers.com/showthread.php?t=2785089
After reverting use the guide from post above: http://forum.xda-developers.com/lg-g3/orig-development/recovery-twrp-touch-recovery-2-8-2-0-t2966129
to flash TWRP.
Then fell free to flash whatever you want in TWRP. If stock lollipop ROM is you what you desire, download zip from here: http://forum.xda-developers.com/lg-g3/development/stock-t2961073
if stock MM is what you wish for download zips from here:
http://forum.xda-developers.com/lg-g3/development/stock-t2961073
or here:
http://forum.xda-developers.com/lg-g3/development/stock-d855-30b-images-kdz-flashables-t3282012
maen.safadi said:
Dear All,
I install Android 6 KDZ yesterday , but i have some problem with network
I wan't to flash a modem , but i don't have any recovery like TWRP
i try to install but no way
any help please about how install twrp on LG G3 D855 MM ?
Click to expand...
Click to collapse
You can't install it because you don't have root and it is not for MM availible yet
NatusVincere said:
False information shared by @Ernesto0023.
Following this guide will get you a secure boot error when attempting to boot into recovery. Even so following this guide is impossible because root is required and OP has no root on his kdz flashed MM.
My recommended solution would be reverting back to kitkat via kdz. If unfamiliar with the method follow this guide: http://forum.xda-developers.com/showthread.php?t=2785089
After reverting use the guide from post above: http://forum.xda-developers.com/lg-g3/orig-development/recovery-twrp-touch-recovery-2-8-2-0-t2966129
to flash TWRP.
Then fell free to flash whatever you want in TWRP. If stock lollipop ROM is you what you desire, download zip from here: http://forum.xda-developers.com/lg-g3/development/stock-t2961073
if stock MM is what you wish for download zips from here:
http://forum.xda-developers.com/lg-g3/development/stock-t2961073
or here:
http://forum.xda-developers.com/lg-g3/development/stock-d855-30b-images-kdz-flashables-t3282012
Click to expand...
Click to collapse
But with root and installing over ADB should work, or not?
I mean root isn't a Big Deal on the G3
Edit: Sorry, now i recognized its the unrooted official MM - maybe to much partying yesterday
Ernesto0023 said:
But with root and installing over ADB should work, or not?
I mean root isn't a Big Deal on the G3
Edit: Sorry, now i recognized its the unrooted official MM - maybe to much partying yesterday
Click to expand...
Click to collapse
Yeah
Even so if his MM would somehow be rooted it was still kdz flashed so it contains
MM bootloader. That equals BUMP not working.
Hope you had fun.
NatusVincere said:
False information shared by @Ernesto0023.
Following this guide will get you a secure boot error when attempting to boot into recovery. Even so following this guide is impossible because root is required and OP has no root on his kdz flashed MM.
My recommended solution would be reverting back to kitkat via kdz. If unfamiliar with the method follow this guide: http://forum.xda-developers.com/showthread.php?t=2785089
After reverting use the guide from post above: http://forum.xda-developers.com/lg-g3/orig-development/recovery-twrp-touch-recovery-2-8-2-0-t2966129
to flash TWRP.
Then fell free to flash whatever you want in TWRP. If stock lollipop ROM is you what you desire, download zip from here: http://forum.xda-developers.com/lg-g3/development/stock-t2961073
if stock MM is what you wish for download zips from here:
http://forum.xda-developers.com/lg-g3/development/stock-t2961073
or here:
http://forum.xda-developers.com/lg-g3/development/stock-d855-30b-images-kdz-flashables-t3282012
Click to expand...
Click to collapse
Thank you for replay
but i try to reverting back to kitkat via kdz, it not allow me to downgrade , and it's stuck and freeze on Download mode screen
NatusVincere said:
Yeah
Hope you had fun.
Click to expand...
Click to collapse
Offtopic:
Of course
Happy New Year to everyone here!
My phone doesnt want to downgrade. I stuck at download mode. I put my kdz file to lg flash tool and start it. After starting, lg mobile support comes and analyses phone. After that it says Upgrade stopped due to an error. I flashed mm yesterday! Phone opens normally everything works. No problem on recovery too (stock one). But i cant downgrade to lollipop! Please help!
Now, you flash TOT file 10x again with TOT file.... but dont change file DLL you have....
Download... file DLL fix...
https://drive.google.com/file/d/0B0VrTZddvLF7b3Q1b1BlQ2w0clE/view?usp=sharing

v521 - downgrade from 7.0 to 6.0

Is this possible?
I tried several ways via LGUP and uppercut one and it would just error out. Also tried flashing "pioneer" 6.0 rom, which works fine but my LTE keep dropping in and out. I assumed that is because I am still on a 7.0 Baseband?
If so, can i downgrade to a 6.0 baseband ?
Please help
I was in the same situation, and this is what I did:
1. using WindowsLGFirmwareExtract-1.2.6.1, extract dz from 10c kdz file.
2. extract modem?????.bin from dz file. (do't remember the exact name)
3. copy this modem???.bin to /sdcard
4. in TWRP, open terminal
5.
Code:
dd if=/sdcard/modem???.bin of=/dev/block/bootdevice/by-name/modem bs=512
6. reboot
And for LGUP error, you need a updated LGUP_c.dll, the 6.0 dll is not compatible with 7.0 downloader.
extract it from 20f(7.0) kdz file and try LGUP again.
yaana said:
I was in the same situation, and this is what I did:
1. using WindowsLGFirmwareExtract-1.2.6.1, extract dz from 10c kdz file.
2. extract modem?????.bin from dz file. (do't remember the exact name)
3. copy this modem???.bin to /sdcard
4. in TWRP, open terminal
5.
Code:
dd if=/sdcard/modem???.bin of=/dev/block/bootdevice/by-name/modem bs=512
6. reboot
And for LGUP error, you need a updated LGUP_c.dll, the 6.0 dll is not compatible with 7.0 downloader.
extract it from 20f(7.0) kdz file and try LGUP again.
Click to expand...
Click to collapse
wow you are a savior.
worked perfectly!
thank you
nnguyen04 said:
wow you are a savior.
worked perfectly!
thank you
Click to expand...
Click to collapse
Is it possible to downgrade without twrp? I haven't been able to root yet because i am on the latest rom. I am trying to downgrade to 6.0 but i am getting same errors. Tried different LGUP_c.dll's but i keep getting errors. I tried flashing modem in fastboot but that also gives error. Im at a loss. TIA!
NoMoreBackdoors said:
Is it possible to downgrade without twrp? I haven't been able to root yet because i am on the latest rom. I am trying to downgrade to 6.0 but i am getting same errors. Tried different LGUP_c.dll's but i keep getting errors. I tried flashing modem in fastboot but that also gives error. Im at a loss. TIA!
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Used uppercut to downgrade. I had to select refurbish first and let it fail, then select upgrade and it was successful. Weird, but it allowed me to downgrade that way.
can I downgrad LG V521 from v20h to v20f or Marshmallow or not?
Thanks all
hsrose09 said:
can I downgrad LG V521 from v20h to v20f or Marshmallow or not?
Thanks all
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i need to know too if nougat(20h) can be downgraded to marshmallow.
el_venga said:
i need to know too if nougat(20h) can be downgraded to marshmallow.
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can
hsrose09 said:
can
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Hi hsrose09,
How to do it? What tools do I need?
I feel it a little bit slower than previous 6.0.

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