Database Develop

[Q] Trying to flash drunk- failed. Now what?

Ok guys, so I was trying to flash the software on my Sprint HTC One with a custom one, while drunk. Needless to say it didn't work. I suspect that chrome f*cked up downloading the rom, because it was only 800mb, and should have been about 1gb. Now, the phone isn't working. When I try to turn it on it shows the htc logo and then boots up in fastboot. Fastboot still receives cmd commands, but I still havent found a way to flash an RUU on it. Tryed with twrp as a recovery- cant mount to computer. Tryed sending the file to phone through cmd- some error about not working radio came through. I'm cutting corners explayning all the methods I tryed to make it work, but there were a lot of them and I dont remember all. I have flashed the boot and the recovery back to the stock ones, bootloader IS unlocked. Phone vertion (as shown in the bootloader screen):
***TAMPERED***
***UNLOCKED***
M7_WLS PVT SHIP S-ON RH
HBOOT- 1.44.0000
OpenDSP-v31.120.274.0617
eMMC- boot
Jul 5 2013,17:19:22:-1
My question is how do I return it to stock condition (or unlocked to all networks if possible)? Please, I've been trying to fix it on my own for over a week now, and am getting desperate. If possible please give links to step-by-step tutorials and/or files I'll need. Thank you in advance.
PS.: Also, for some reason my computer does fails to install the HTC MTP device driver. Could it be from that, and if it is- will using a different computer solve the problem (tryed a million times to fix that as well- no luck)?

drobalqk said:
Ok guys, so I was trying to flash the software on my Sprint HTC One with a custom one, while drunk. Needless to say it didn't work. I suspect that chrome f*cked up downloading the rom, because it was only 800mb, and should have been about 1gb. Now, the phone isn't working. When I try to turn it on it shows the htc logo and then boots up in fastboot. Fastboot still receives cmd commands, but I still havent found a way to flash an RUU on it. Tryed with twrp as a recovery- cant mount to computer. Tryed sending the file to phone through cmd- some error about not working radio came through. I'm cutting corners explayning all the methods I tryed to make it work, but there were a lot of them and I dont remember all. I have flashed the boot and the recovery back to the stock ones, bootloader IS unlocked. Phone vertion (as shown in the bootloader screen):
***TAMPERED***
***UNLOCKED***
M7_WLS PVT SHIP S-ON RH
HBOOT- 1.44.0000
OpenDSP-v31.120.274.0617
eMMC- boot
Jul 5 2013,17:19:22:-1
My question is how do I return it to stock condition (or unlocked to all networks if possible)? Please, I've been trying to fix it on my own for over a week now, and am getting desperate. If possible please give links to step-by-step tutorials and/or files I'll need. Thank you in advance.
Click to expand...
Click to collapse
It sounds like you have the same problem that a lot of people are getting into around here, myself included. You tried to flash a non-cdma compatible rom onto your phone.
There are numerous postings about how to fix this, however, it depends on the condition of your phone which step you take.
If you have recovery installed and you have access to recovery you will take different steps than if you only have access to fastboot.
You need to have a recovery installed and you need to relock your phone to fastboot ruu. Once that is done you basically start from scratch and unlick your phone again and then you can reinstall the recovery and then flash the correct cdma compatible roms.

MrFixit007 said:
It sounds like you have the same problem that a lot of people are getting into around here, myself included. You tried to flash a non-cdma compatible rom onto your phone.
There are numerous postings about how to fix this, however, it depends on the condition of your phone which step you take.
If you have recovery installed and you have access to recovery you will take different steps than if you only have access to fastboot.
You need to have a recovery installed and you need to relock your phone to fastboot ruu. Once that is done you basically start from scratch and unlick your phone again and then you can reinstall the recovery and then flash the correct cdma compatible roms.
Click to expand...
Click to collapse
The recovery I can install in a matter of seconds, same with relocking. I have the lastest vertions on both TWRP and Clockwork. Which one do I install and how do I proceed after? Thank you

drobalqk said:
The recovery I can install in a matter of seconds, same with relocking. I have the lastest vertions on both TWRP and Clockwork. Which one do I install and how do I proceed after? Thank you
Click to expand...
Click to collapse
do you have adb access? or only fastboot access?

MrFixit007 said:
do you have adb access? or only fastboot access?
Click to expand...
Click to collapse
adb- Im not sure. How do I check? Fastboot- I think so. It accepts my cmd commands for flashing recovery and rom (although when I tryed to flash rom it failed).

drobalqk said:
adb- Im not sure. How do I check? Fastboot- I think so. It accepts my cmd commands for flashing recovery and rom (although when I tryed to flash rom it failed).
Click to expand...
Click to collapse
In your command window in the same directory you run fastboot from, you should be able to run adb.
The easiest way to check is to type: adb devices
this should return a value if you are booted into recovery.
it will give you nothing if you aren't in recovery.
if you cannot get into recovery then you need to make sure your phone is unlocked and then fastboot a recovery onto your phone.

MrFixit007 said:
In your command window in the same directory you run fastboot from, you should be able to run adb.
The easiest way to check is to type: adb devices
this should return a value if you are booted into recovery.
it will give you nothing if you aren't in recovery.
if you cannot get into recovery then you need to make sure your phone is unlocked and then fastboot a recovery onto your phone.
Click to expand...
Click to collapse
I currently have the stock recovery flashed on it. Is that one going to work or should I flash TWRP/ Clockwork?

drobalqk said:
I currently have the stock recovery flashed on it. Is that one going to work or should I flash TWRP/ Clockwork?
Click to expand...
Click to collapse
as long as you can boot into recovery, it should work. i personally favor twrp, but any recovery should work.
try out some adb commands and see.
adb sevices
adb shell
if you get anywhere with those while booted into recovery you should be ok.

MrFixit007 said:
as long as you can boot into recovery, it should work. i personally favor twrp, but any recovery should work.
try out some adb commands and see.
adb sevices
adb shell
if you get anywhere with those while booted into recovery you should be ok.
Click to expand...
Click to collapse
adb devices returns no values
adb services returns big list of commands
adb shell returns error device not found.
I'm into TWRP v.2.6.1.0 start screen.

drobalqk said:
adb devices returns no values
adb services returns big list of commands
adb shell returns error device not found.
I'm into TWRP v.2.6.1.0 start screen.
Click to expand...
Click to collapse
did those adb errors or no devices found occur while your phone was showing the twrp start screen?
if yes, then we need to reboot into the bootloader-- to fastboot.
if no then try adb shell again while showing the twrp start screen.

MrFixit007 said:
did those adb errors or no devices found occur while your phone was showing the twrp start screen?
if yes, then we need to reboot into the bootloader-- to fastboot.
if no then try adb shell again while showing the twrp start screen.
Click to expand...
Click to collapse
Yes, I was IN TWRP recovery home screen. I'll try the commands in fastboot as soon as I come back from work. Thank you for the time you spend trying to help me, I do very much apreciate it.

drobalqk said:
Yes, I was IN TWRP recovery home screen. I'll try the commands in fastboot as soon as I come back from work. Thank you for the time you spend trying to help me, I do very much apreciate it.
Click to expand...
Click to collapse
It seems like you need to fastboot flash recovery onto your phone again.
Here are the steps as I think they should work to get you back up and running.
**Make sure your phone is unlocked. (it should display ***UNLOCKED*** at the top of the bootloader screen)
if you ARE unlocked do the following(+++see below if you are NOT unlocked+++)
1. from bootloader select fastboot - connect phone to computer. fastboot should change to fastboot usb when you have a good connection.
on your computer:
2. open a command window and navigate to the folder where adb and fastboot are located
3. type in "fastboot flash recovery xxxxxxxx.zip" where xxxxxxxx.zip is the name of recovery zip file without quotes. Make sure you download a good copy appropriate for your phone. I would use this one: http://techerrata.com/file/twrp2/m7wls/openrecovery-twrp-2.6.1.0-m7wls.img
4. type fastboot reboot
on your phone:
5. once it is rebooted and in bootloader select recovery and boot into recovery.
on your computer:
6. once your phone shows recovery main screen then typeat the command prompt: adb shell
7. no matter what the prompt looks like type: echo "1.29.651.10" | dd of=/dev/block/mmcblk0p19 bs=1 seek=160
8. no matter if it errors or not type: adb reboot bootloader
9. type: fastboot oem lock
10. type: fastboot oem rebootRUU
11. type fastboot flash zip xxxxxxxxxxxxx.zip where xxxxxxxxxxxxx.zip is the name of the ruu.zip file. i would use this one: http://www.androidfilehost.com/?fid=22926241640219526
12 reboot your phone once that is successful!! If you get the "flush image again immideately" error message then repeat step 11. then reboot your phone.
you should now be running a stock sprint phone.
you can now unlock your phone again and reinstall a recovery.
to unlock your phone the second time:
13. boot your phone into bootloader then go to fastboot - make sure the phone is connected to the computer
14. on your computer type in: fastboot flash unlocktoken Unlock_code.bin
15. on your phone select unlock with volume rocker and press power once unlock is selected
16. on computer type: fastboot flash recovery xxxxxxxxx.zip where xxxxxxxxxx.zip is the same recovery zip file we used above in step 3
17. reboot your phone and you are now unlocked and you have a custom recovery installed and you can download a CDMA compatible rom to your phone and install it with the recovery like normal. or you can continue to run stock.
MAKE SURE YOU ONLY DOWNLOAD CDMA COMPATIBLE ROMS FROM THE SPRINT HTC ONE FORUMS.
enjoii!!
+++if you are NOT unlocked+++
try the following:
step 13
step 14
step 15
step 16
step 4
step 5
step 6-17
make sure you complete all the way through 17 after you do step 6. good luck and let me know what your results are.

MrFixit007 said:
It seems like you need to fastboot flash recovery onto your phone again.
Here are the steps as I think they should work to get you back up and running.
**Make sure your phone is unlocked. (it should display ***UNLOCKED*** at the top of the bootloader screen)
if you ARE unlocked do the following(+++see below if you are NOT unlocked+++)
1. from bootloader select fastboot - connect phone to computer. fastboot should change to fastboot usb when you have a good connection.
on your computer:
2. open a command window and navigate to the folder where adb and fastboot are located
3. type in "fastboot flash recovery xxxxxxxx.zip" where xxxxxxxx.zip is the name of recovery zip file without quotes. Make sure you download a good copy appropriate for your phone. I would use this one: http://techerrata.com/file/twrp2/m7wls/openrecovery-twrp-2.6.1.0-m7wls.img
4. type fastboot reboot
on your phone:
5. once it is rebooted and in bootloader select recovery and boot into recovery.
on your computer:
6. once your phone shows recovery main screen then typeat the command prompt: adb shell
7. no matter what the prompt looks like type: echo "1.29.651.10" | dd of=/dev/block/mmcblk0p19 bs=1 seek=160
8. no matter if it errors or not type: adb reboot bootloader
9. type: fastboot oem lock
10. type: fastboot oem rebootRUU
11. type fastboot flash zip xxxxxxxxxxxxx.zip where xxxxxxxxxxxxx.zip is the name of the ruu.zip file. i would use this one: http://www.androidfilehost.com/?fid=22926241640219526
12 reboot your phone once that is successful!! If you get the "flush image again immideately" error message then repeat step 11. then reboot your phone.
you should now be running a stock sprint phone.
you can now unlock your phone again and reinstall a recovery.
to unlock your phone the second time:
13. boot your phone into bootloader then go to fastboot - make sure the phone is connected to the computer
14. on your computer type in: fastboot flash unlocktoken Unlock_code.bin
15. on your phone select unlock with volume rocker and press power once unlock is selected
16. on computer type: fastboot flash recovery xxxxxxxxx.zip where xxxxxxxxxx.zip is the same recovery zip file we used above in step 3
17. reboot your phone and you are now unlocked and you have a custom recovery installed and you can download a CDMA compatible rom to your phone and install it with the recovery like normal. or you can continue to run stock.
MAKE SURE YOU ONLY DOWNLOAD CDMA COMPATIBLE ROMS FROM THE SPRINT HTC ONE FORUMS.
enjoii!!
+++if you are NOT unlocked+++
try the following:
step 13
step 14
step 15
step 16
step 4
step 5
step 6-17
make sure you complete all the way through 17 after you do step 6. good luck and let me know what your results are.
Click to expand...
Click to collapse
Nope, adb still doesn't work. Could it be something wrong with the drivers my computer installs? Because when I'm in recovery my computer detects the device in "Other Devices" as "M7WLS", and I don't have a driver for that and neither does microsoft update. Any suggestions?

drobalqk said:
Nope, adb still doesn't work. Could it be something wrong with the drivers my computer installs? Because when I'm in recovery my computer detects the device in "Other Devices" as "M7WLS", and I don't have a driver for that and neither does microsoft update. Any suggestions?
Click to expand...
Click to collapse
Did you install HTC Sync or did you install the naked drivers from here?
Otherwise, where in the process did you get stopped?
EDIT: You can always PM me your teamviewer info and I can work on it.

(troubleshooting) PLZ NEED HELP WITH MY HTC ONE!!!!

I was trying to unroot my HTC ONE but i didn't do it right and now i'm in a mess my phone is relocked it still says tampered and it's s-on every time i try to flash a ota form bell even if i unlock it again it stops the green progress bar right at the end and i have to unplug it and restart it and now it's showing me a black screen with a android label and it stays stuck on that screen plz help i've been searching for hours to know how to fix it. plz help me anyone it's from bell mobility and i'm in Canada i can't find a ruu so that's why i tried to flash the ota...

danskins31 said:
I was trying to unroot my HTC ONE but i didn't do it right and now i'm in a mess my phone is relocked it still says tampered and it's s-on every time i try to flash a ota form bell even if i unlock it again it stops the green progress bar right at the end and i have to unplug it and restart it and now it's showing me a black screen with a android label and it stays stuck on that screen plz help i've been searching for hours to know how to fix it. plz help me anyone it's from bell mobility and i'm in Canada i can't find a ruu so that's why i tried to flash the ota...
Click to expand...
Click to collapse
are you flashing a rom.zip in fastboot RUU mode (fastboot oem rebootRUU) ? if so it's normal for the green bar to stop just short, and the command window should say flash completed.
just type fastboot reboot-bootloader and then fastboot erase cache
followed by fastboot reboot your phone will take about 3-5 min to boot up the first time
to fix the relocked just unlock again with the .bin file you got the first time you unlocked
you'll also need to reflash a custom recovery and root if you so desire

clsA said:
are you flashing a rom.zip in fastboot RUU mode (fastboot oem rebootRUU) ? if so it's normal for the green bar to stop just short, and the command window should say flash completed.
just type fastboot reboot-bootloader and then fastboot erase cache
followed by fastboot reboot your phone will take about 3-5 min to boot up the first time
to fix the relocked just unlock again with the .bin file you got the first time you unlocked
you'll also need to reflash a custom recovery and root if you so desire
Click to expand...
Click to collapse
can you give me a step by step lol i'm on a mac so it's a bit different i'm guessing

danskins31 said:
can you give me a step by step lol i'm on a mac so it's a bit different i'm guessing
Click to expand...
Click to collapse
No it's not that different. Just use the terminal app and follow the instructions to unroot it. Make sure you have the htc drivers installed

Ktan188 said:
No it's not that different. Just use the terminal app and follow the instructions to unroot it. Make sure you have the htc drivers installed
Click to expand...
Click to collapse
can someone send me a link to a good one or give me steps because i'm a noob

danskins31 said:
can someone send me a link to a good one or give me steps because i'm a noob
Click to expand...
Click to collapse
You can still search it for yourself, even if you are a noob. But here is a link : http://www.ibtimes.co.uk/articles/4...ot-official-firmware-android422-jellybean.htm

help me
i don't know what is the right ruu to use or ota all of the one's i try fail and i know i have to see my version i did it's BM_001
and my i read also that i need a ruu that has 666 in the middle for bell but still no luck

danskins31 said:
i don't know what is the right ruu to use or ota all of the one's i try fail and i know i have to see my version i did it's BM_001
and my i read also that i need a ruu that has 666 in the middle for bell but still no luck
Click to expand...
Click to collapse
I really don't know how to say it any better
go back to htc-dev and unlock your bootloader - http://www.htcdev.com/bootloader/
re-flash TWRP recovery - fastboot flash recovery TWRP.img
and re-flash a rom (if you don't have a rom on your sdcard you'll need to push or sideload a rom to your phones SDcard
the command is adb push name of rom.zip /data/media/0 change the name of coarse
here is the Nandroid Backup CID BM 001 3.23.666.1 for your phone
http://www.htc1guru.com/dld/m7-twrp-nandroid-backup-cid-bm___001-3-23-666-1-zip/
You will extract the Backup to your fastboot folder (make a folder called backup in fastboot) and then push it to your phone while it's booted to Recovery
adb push backup /data/media/0/TWRP/BACKUPS/Your phones Serial number/backup
you get your phones serial number by typing adb devices
C:\fastboot>adb devices
List of devices attached
HT343******* recovery
C:\fastboot>adb push backup /data/media/0/TWRP/BACKUPS/HT343*******/backup
push: backup/firmware_3.62.401.1.zip -> /data/media/0/TWRP/BACKUPS/HT343*******/
backup/firmware_3.62.401.1.zip
1 file pushed. 0 files skipped.
3881 KB/s (28795564 bytes in 7.245s)
Click to expand...
Click to collapse
a full backup will take much longer to transfer (4-5min maybe more)

plz help
i can't get adb working on my mac but fastboot works fine and i looked at tons on ways to get it to work but it still doesn't show me my devices listed and without that i can't go forward with the process

danskins31 said:
i can't get adb working on my mac but fastboot works fine and i looked at tons on ways to get it to work but it still doesn't show me my devices listed and without that i can't go forward with the process
Click to expand...
Click to collapse
adb works in recovery, not in fastboot usb
have you unlocked the bootloader and flashed the recovery ?

clsA said:
adb works in recovery, not in fastboot usb
have you unlocked the bootloader and flashed the recovery ?
Click to expand...
Click to collapse
thank you so much for everything it worked out great and i got the google edition rom its really neat thanks again for all of ur guys help!

[Q] Phone is Dead :(

Ok, first off i was soff unlocked.. i then updated my phone to the latest OTA sense 6. I then tried to install customs roms which ended up not booting and forcing my phone to have no OS. so not being able to access the OS or sideloading roms, i tried RUUing but couldnt get the side to side error fixed. so then i continued to try and downgrade my firmware so i can ruu the official htc 3.xx one. as soon as i downgraded to hboot 1.55, my phone isnt recognized in fastboot anymore. so i can not access my phone from either adb or fastboot. anyone have any suggestions?

here you are
firespitta said:
Ok, first off i was soff unlocked.. i then updated my phone to the latest OTA sense 6. I then tried to install customs roms which ended up not booting and forcing my phone to have no OS. so not being able to access the OS or sideloading roms, i tried RUUing but couldnt get the side to side error fixed. so then i continued to try and downgrade my firmware so i can ruu the official htc 3.xx one. as soon as i downgraded to hboot 1.55, my phone isnt recognized in fastboot anymore. so i can not access my phone from either adb or fastboot. anyone have any suggestions?
Click to expand...
Click to collapse
I recently had the same issue, you should be able to fix this by following these steps, keep in mind, continuing this process will unroot your device. Thus, you will loose all of your data on your phone.
first begin by booting into bootloader, then plugging in your device via usb cable to your computer, it should now say "fastbootusb" on the device's screen.
if you don't already have the the fastbooot files required for your computer, you can download them here: ftp.qbking77.(com)/Files/OneDrivers_Fastboot.zip
after that, extract the zip file somewhere on your computer, and open the fastboot folder. Now hold down shift and click on an empty space in the folder and choose open new command window here, or something along those lines.
Now that you've done this, type fastboot oem lock and press enter, this will relock your phones bootloader.
Now, unplug your phone from usb, and reboot back into fastboot, and once again, plug the device into the computer. Just as before, your phones screen should now say fastboot usb. You can now flash this file via fastboot by following the instructions below.
androidfilehost.(com)/?fid=23329332407568410
rename the file downlaoded to firmware.zip and copy it to the folder containing your fastboot.exe file
now in the command prompt window, type in Fastboot oem rebootRUU
you should now see a black screen with the HTC logo, type Fastboot flash zip firmware.zip,
once that is complete, type fastboot reboot and once more, reboot into fastboot
you can now download this RUU file from the following link: androidfilehost.(com)/?fid=23329332407573774
extract the zip folder somewhere on your computer
boot into bootloader, and once again choose fastboot,
plug in your usb cable to your phone and computer, and the phone should once again say fastboot usb.
now open the folder you extracted and run ARUWizard.exe, this will unroot your device and return you to stock.
now, if you wish, you may re root your device.
Hope this works, if none of this makes sense, mention it. I typed this up in a bit of a rush.
also, you will have to copy and paste the links, as I have not made 10 general posts, so I can't add direct links to my post. Sorry mate.
as far as your fastboot issue, try re installing the htc and fastboot drivers.

Was gifted the One. It's broken though. Help.

Just got my hands on this phone and I'm trying to figure out how to repair it. The phone is stuck in a boot loop with a red triangle and an exclamation mark! Can't do anything to get out of it. I don't know how or what happened to get it into this state. I'm familiar with android, but I'm new to HTC.
Any pointers on where to start troubleshooting? I've attached an image of what the HBOOT shows.

On the hboot screen select fastboot with the power button and run a RUU and it will restore to factory settings getting the phone up and running

I tried following this guide.
jpwhre said:
Download this
https://www.dropbox.com/s/v5h84hsysxvhm7g/6.16.651.2_firmware.zip?dl=0
reboot bootloader, make sure it says fastboot usb
Run these comands in CMD (copy/past)
If you are s-on
Code:
fastboot oem lock
PRESS ENTER
If you are s-off it don't matter.
Code:
fastboot reboot bootloader
PRESS ENTER
Code:
fastboot oem rebootRUU
PRESS ENTER
Code:
fastboot flash zip 6.16.651.2_firmware.zip
PRESS ENTER
Download this
https://www.dropbox.com/s/j4n7tlvvj...PCS_4.38_003_release_414036_signed_2.exe?dl=0
Run it.
S-on will delete device, s-off won't, so if you plan on getting rid of device, and it is s-off, after reboot, select restore device and select delete internal storage (if you don't want others to see those selfies of you eating banana split in PJ's with your cat)
Click to expand...
Click to collapse
I'm running into issues with the last step from flashing the RUU.exe update utility. The flash kept freezing at "Updating (1/6) sending..." for over half an hour each time I tried to redo it. I downloaded the encrypted RUU rom.zip and tried to flash via CMD prompt. That ALSO failed with a "signature verify fail." What am I doing wrong? Is it hard bricked?

Can somebody please point me in the right direction? (I've searched)

I need to root my G4 on TMO. It's on 6.0 and all I have done is enabled dev options - usb debugging- enable OEM in the menu. I've rooted devices before but it's been awhile. I obviously need to start from the beginning here, I assume by unlocking bootloader. I can't find any thread to start with as they are either outdated or for a different version of Android, or I just couldn't find one. I would really appreciate it if somebody could just link me to the thread/guide I need to be in! Thank you so much if you can!

MTN927 said:
I need to root my G4 on TMO. It's on 6.0 and all I have done is enabled dev options - usb debugging- enable OEM in the menu. I've rooted devices before but it's been awhile. I obviously need to start from the beginning here, I assume by unlocking bootloader. I can't find any thread to start with as they are either outdated or for a different version of Android, or I just couldn't find one. I would really appreciate it if somebody could just link me to the thread/guide I need to be in! Thank you so much if you can!
Click to expand...
Click to collapse
note it can only be unlock in this versions.. ill place them from oldest to newest 20i-(20p-20q-20r-20v) if you in any of the versions in parenthesis doent downgrade tp 20i... 20i is antirollback V2 all other in parenthsis is V3 you can switch bak and forth from 20p-to 20v.
well you have developers option enabled and OEM unlock
minimal adb. fastboot install it follow instructions. https://forum.xda-developers.com/showthread.php?t=2317790
download TWRP from here h811 and h815 same app for both. https://twrp.me/devices/lgg4.html
have 2 copies on in SD card other in minmal adb fastboot folder.
Bootloader OEM Unlock + Root:
Starting with the Android 6.0 20x bootloader it has to be unlocked, sorta like a Nexus, with fastboot. Previously only 'OEM Unlock' had to be toggled in Android Developer settings for TWRP or custom boot images to work.
download superSU
connect usb cable to phone.. then go to location folder of minimal adb.. ezample Crogramfiles/minimal.
then in the folder in a empty space press shift key.. and right click on mouse button . you should see open command prompt from here.. select it.
a new window should appear. enter this command
adb reboot bootloader and see screen for confirmation to acsess phone select yes.
if it doesnt boot into bootloader try command again
once booted youll see small letter on phone screen then enter command
fastboot oem unlock (this wipes ALL data!!)
it should restart phone. and optimize all apps...and bootloader should unlock
do same for twrp.... make sure command name of twrp is the same in the file example command is like this..
fastboot boot twrp-2.8.7.1-h811.img and file TWRP is say.. twrp.30.00 it wont work rename either command or files or both and name it twrp.img same in command. once it boot into twrp .. go to install then press button that says image. so the twrp.img you have in sd card appears/ select it then on next window tick recovery. swipe left to install permanently and you are done. flash new rom or superSU.
hope i make sense good luck

raptorddd said:
note it can only be unlock in this versions.. ill place them from oldest to newest 20i-(20p-20q-20r-20v) if you in any of the versions in parenthesis doent downgrade tp 20i... 20i is antirollback V2 all other in parenthsis is V3 you can switch bak and forth from 20p-to 20v.
well you have developers option enabled and OEM unlock
minimal adb. fastboot install it follow instructions. https://forum.xda-developers.com/showthread.php?t=2317790
download TWRP from here h811 and h815 same app for both. https://twrp.me/devices/lgg4.html
have 2 copies on in SD card other in minmal adb fastboot folder.
Bootloader OEM Unlock + Root:
Starting with the Android 6.0 20x bootloader it has to be unlocked, sorta like a Nexus, with fastboot. Previously only 'OEM Unlock' had to be toggled in Android Developer settings for TWRP or custom boot images to work.
download superSU
connect usb cable to phone.. then go to location folder of minimal adb.. ezample Crogramfiles/minimal.
then in the folder in a empty space press shift key.. and right click on mouse button . you should see open command prompt from here.. select it.
a new window should appear. enter this command
adb reboot bootloader and see screen for confirmation to acsess phone select yes.
if it doesnt boot into bootloader try command again
once booted youll see small letter on phone screen then enter command
fastboot oem unlock (this wipes ALL data!!)
it should restart phone. and optimize all apps...and bootloader should unlock
do same for twrp.... make sure command name of twrp is the same in the file example command is like this..
fastboot boot twrp-2.8.7.1-h811.img and file TWRP is say.. twrp.30.00 it wont work rename either command or files or both and name it twrp.img same in command. once it boot into twrp .. go to install then press button that says image. so the twrp.img you have in sd card appears/ select it then on next window tick recovery. swipe left to install permanently and you are done. flash new rom or superSU.
hope i make sense good luck
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I'm on 20v, so I should be good.

MTN927 said:
I'm on 20v, so I should be good.
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yes . thats latest version.. thats good.

OK, I got twrp installed but the two SU's I've flashed don't work. I have SU installed, it needs to update binaires, I try that but it fails every time. Root checkers say I'm not rooted. I think I'm using the wrong SU zip. Any help? Your guide was great btw.
EDIT: OK, now it says i am rooted but I can't get the SU binary to update. It fails every time and then asks me to reboot and try again. Any ideas?
UPDATE: Ok, the SU binary finally updated successfully! I think I'm all good! Gonna check out some custom ROMS later. Any recommendations?

Lineage
https://forum.xda-developers.com/g4/development/rom-cyanogenmod-13-0-lg-g4-t3477475