Hi,
I have an LG G6 and I want to put LineageOS on it. The problem is that the custom rom is only available for H870 international version, and not the H872 that I have. LG has an official unlock for the bootloader for the H870 version and I believe one more, but not for the one I have. But of course, I don't need an official unlock thing I can just do it myself, right? But after unlocking, I can't seem to flash any recovery on it because apparently, the 'fastboot' commands have been removed. So no using 'fastboot flash recovery recovery.img' type of command etc. So regarding this, I have three questions:
1) Is it in any way possible to recover the 'fastboot' commands?
2) If not, can I flash a recovery via another method?
3) If I successfully flash a recovery, can I flash the H870 ROM, considering I have a H872?
Thanks for the help!
-uHxshmii
uHxshmii said:
Hi,
I have an LG G6 and I want to put LineageOS on it. The problem is that the custom rom is only available for H870 international version, and not the H872 that I have. LG has an official unlock for the bootloader for the H870 version and I believe one more, but not for the one I have. But of course, I don't need an official unlock thing I can just do it myself, right? But after unlocking, I can't seem to flash any recovery on it because apparently, the 'fastboot' commands have been removed. So no using 'fastboot flash recovery recovery.img' type of command etc. So regarding this, I have three questions:
1) Is it in any way possible to recover the 'fastboot' commands?
2) If not, can I flash a recovery via another method?
3) If I successfully flash a recovery, can I flash the H870 ROM, considering I have a H872?
Thanks for the help!
-uHxshmii
Click to expand...
Click to collapse
as far as I know, you can't recover the 'fastboot' commands, but there is a way of rooting your h872 https://forum.xda-developers.com/tmobile-g6/how-to/root-h872-to-including-11g-t3775518 and no you can't flash an H870 international version on an h872 it will brick your phone
aquinoer said:
as far as I know, you can't recover the 'fastboot' commands, but there is a way of rooting your h872 https://forum.xda-developers.com/tmobile-g6/how-to/root-h872-to-including-11g-t3775518 and no you can't flash an H870 international version on an h872 it will brick your phone
Click to expand...
Click to collapse
Thank you!
Related
Hi all,
I am trying to re-lock my bootloader, but my fastboot commands aren't working. It says "remote error command not found."
I am running stock b19 (7.1.1) unrooted. The only thing modified is the bootloader, which is unlocked.
How do I fix this error. I installed the ADB drivers. I do not know what is causing this error. Any help will be appreciated.
TheWoerbler said:
Hi all,
I am trying to re-lock my bootloader, but my fastboot commands aren't working. It says "remote error command not found."
I am running stock b19 (7.1.1) unrooted. The only thing modified is the bootloader, which is unlocked.
How do I fix this error. I installed the ADB drivers. I do not know what is causing this error. Any help will be appreciated.
Click to expand...
Click to collapse
I think fastboot commands were disabled in b19. There's no harm in keeping it unlocked unless you're wanting to use Android Pay (in which case Magisk can hide the unlocked bootloader), or you're needing to return the phone for warranty reasons.
bluestudy said:
I think fastboot commands were disabled in b19. There's no harm in keeping it unlocked unless you're wanting to use Android Pay (in which case Magisk can hide the unlocked bootloader), or you're needing to return the phone for warranty reasons.
Click to expand...
Click to collapse
So I installed the factory image from ZTE's website, which uninstalled twrp and SuperSU (which I knew it would), but I am still unable to use fastboot commands. What might be causing this problem?
As far as I know you need to rollback and flash DrakenFX's fastboot command zip in order to be able to use fastboot again.
iNaruX said:
As far as I know you need to rollback and flash DrakenFX's fastboot command zip in order to be able to use fastboot again.
Click to expand...
Click to collapse
So I changed some settings in Windows Device Manager, now fastboot is working...kinda. I type "fastboot oem lock" and it hangs up for 5 seconds and gives me the error "FAILED (command write failed (Unknown error))...
I solve one problem, and another pops up... Thoughts?
EDIT: In regards to DrakenFX's fastboot command zip, where would I get that? Is it the full systemstock?
I read this guide for the Axon7 A2017G, but the zips used are for the A2017U.
https://forum.xda-developers.com/axon-7/how-to/guide-reinstall-twrp-root-update-to-t3578552
The first couple of steps restore the bootloader and get fastboot commands up and running via EDL mode.
iNaruX said:
I read this guide for the Axon7 A2017G, but the zips used are for the A2017U.
https://forum.xda-developers.com/axon-7/how-to/guide-reinstall-twrp-root-update-to-t3578552
The first couple of steps restore the bootloader and get fastboot commands up and running via EDL mode.
Click to expand...
Click to collapse
I am currently running B29 (6.0.1). Will this still work, even though I am on a different version of Android? Or should I update to B19?
Oh...if you are on MM this should work for you.
https://forum.xda-developers.com/axon-7/how-to/guide-how-to-unlock-bootloader-stay-t3461165
Just flashable zip in Recovery, no need for EDL.
I'm not an A2017U though...
iNaruX said:
Oh...if you are on MM this should work for you.
https://forum.xda-developers.com/axon-7/how-to/guide-how-to-unlock-bootloader-stay-t3461165
Just flashable zip in Recovery, no need for EDL.
I'm not an A2017U though...
Click to expand...
Click to collapse
Just for clarification: I am trying to LOCK my bootloader, not UNLOCK. Sorry if I've been unclear. I need to RE-LOCK my bootloader...everything else is stock (recovery, no SuperSU, etc.)
P.S. Thank you for your help, I really appreciate you taking the time.\
EDIT: AHHHHHHHHHHHHH I GOT IT!!!!! Thank you so so much!!! I really appreciate your help, you have no idea!! I followed the last guide you sent me and replaced "unlock" with "lock." You're the best, man...or woman!
TheWoerbler said:
Just for clarification: I am trying to LOCK my bootloader, not UNLOCK. Sorry if I've been unclear. I need to RE-LOCK my bootloader...everything else is stock (recovery, no SuperSU, etc.)
P.S. Thank you for your help, I really appreciate you taking the time.\
EDIT: AHHHHHHHHHHHHH I GOT IT!!!!! Thank you so so much!!! I really appreciate your help, you have no idea!! I followed the last guide you sent me and replaced "unlock" with "lock." You're the best, man...or woman!
Click to expand...
Click to collapse
Haha cheers, I think you got it, I sent that guide just to enable fastboot commands, glad it worked :good:
I need to re-lock the bootloader on my A2017U. I put in a warranty repair claim with ZTE for a dead SIM2 slot. They said if I could relock it to stock, they would not charge the $79.99 out-of-warranty fee.
My only concern with the guides above is that I'm on the RR Nougat ROM. Will any of the links above work for me?
Hi Guys,
The Axon 7 Model A2017U I just purchased has the bootloader locked and it is running LineageOS 14.1 - 2018032-Nightly-axon7. I need to relock the bootloader and get back to the stock MiFavor rom so that I can send the phone to ZTE for repair. Can you please explain to a newb in some detail how to achieve that.
Thank you.
TheBoozer said:
Hi Guys,
The Axon 7 Model A2017U I just purchased has the bootloader locked and it is running LineageOS 14.1 - 2018032-Nightly-axon7. I need to relock the bootloader and get back to the stock MiFavor rom so that I can send the phone to ZTE for repair. Can you please explain to a newb in some detail how to achieve that.
Thank you.
Click to expand...
Click to collapse
This guide should do the trick: https://forum.xda-developers.com/axon-7/how-to/guide-axon-7-universal-unbrick-t3814413
soren25 said:
This guide should do the trick: https://forum.xda-developers.com/axon-7/how-to/guide-axon-7-universal-unbrick-t3814413
Click to expand...
Click to collapse
Thank you very much for your help, I am now back to stock B15. The only thing left for me is to relock the bootloader.
I have a doubt that,In some of the devices we can install twrp using adb commands without rooting our device. But in many new generation devices there are always posts or videos about, first rooting the devices and then installing twrp.
So, what are the reasons that we don't directly flash twrp on moto g5 using adb commands, and first we prefer getting device unlocked by getting unlock code.
And for my general doubt can anyone please explain me what does "unlocking a bootloader" means and what does "OEM" means. Also if i unlock OEM using developer options it doesn't show up in the bootloader menu.
I request to please explain elaborately as I am just new to all this.
To flash Twrp you need unlocked bootloader. Rooting has nothing to do with it, that is OS side. If bootloader is unlocked, you can fastboot flash Twrp. However, I suggest if you are unsure but want to have custom ROMs, you should use the tool that does it all for you.
https://forum.xda-developers.com/g5-plus/development/toolkit-moto-g5-plus-toolkit-root-t3605203
This tool will get your unlock information which you must submit on the moto unlock site. They will send you email with your bootloader key. Once you unlock bootloader through the tool, you can also flash twrp through the tool. When you have flashed twrp, you must wipe data in twrp and flash SuperSU to get past the data encryption. There is plenty of info around here on these subjects, I would suggest to read very carefully all the guides before continuing.
I have Lineage OS 14.1 on my phone and need to use Duo Mobile for 2 factor authentication. In spite of the fact that I have "unrooted" the system is still detecting that I a have tampered with my device. I will assume it's because the bootloader is unlocked.
I really, really don't want to wipe the phone and reconfigure all my apps (yes, it's easier than it used to be). Getting into fastboot and doing the fast relock commands is pretty clear to me, but how to get my device back to exactly where it is, but just with the bootloader locked?
Not possible.
Sent from my ZTE A2017U using Tapatalk
kendoori said:
I have Lineage OS 14.1 on my phone and need to use Duo Mobile for 2 factor authentication. In spite of the fact that I have "unrooted" the system is still detecting that I a have tampered with my device. I will assume it's because the bootloader is unlocked.
I really, really don't want to wipe the phone and reconfigure all my apps (yes, it's easier than it used to be). Getting into fastboot and doing the fast relock commands is pretty clear to me, but how to get my device back to exactly where it is, but just with the bootloader locked?
Click to expand...
Click to collapse
You can't relock unless you are fully stock (actually you can, but you'll have a brick for life)
Choose an username... said:
You can't relock unless you are fully stock (actually you can, but you'll have a brick for life)
Click to expand...
Click to collapse
I have the a2017 model. Can I flash G or U stock firmware keeping the Chinese firmware modem and relock the bootloader. Do you know whether this is possible or would work without bricking.
FuzzyDunlop9 said:
I have the a2017 model. Can I flash G or U stock firmware keeping the Chinese firmware modem and relock the bootloader. Do you know whether this is possible or would work without bricking.
Click to expand...
Click to collapse
To relock the bootloader you will need fastboot. None of the newer stock firmwares have fastboot asides from Chinese B19. You will need to EDL Flash B19 and use the Axon 7 Tool to relock the bootloader. After that, you can flash any Axon 7 firmware you'd like. Any A7 firmware works on any A7 model.
Make sure to replace the NONHLOS.bin in the files of the EDL package with the NONHLOS.bin from the Chinese firmware. This file is the modem, and so if you live in China, you will need to replace the US/EU modem file inside the package with the Chinese one.
It won't brick your phone, but it's not possible to relock the bootloader without wiping. I'd suggest a backup app such as Titanium Backup or something else (not too sure about non-root backup apps).
runninghamster said:
To relock the bootloader you will need fastboot. None of the newer stock firmwares have fastboot asides from Chinese B19. You will need to EDL Flash B19 and use the Axon 7 Tool to relock the bootloader. After that, you can flash any Axon 7 firmware you'd like. Any A7 firmware works on any A7 model.
Make sure to replace the NONHLOS.bin in the files of the EDL package with the NONHLOS.bin from the Chinese firmware. This file is the modem, and so if you live in China, you will need to replace the US/EU modem file inside the package with the Chinese one.
It won't brick your phone, but it's not possible to relock the bootloader without wiping. I'd suggest a backup app such as Titanium Backup or something else (not too sure about non-root backup apps).
Click to expand...
Click to collapse
Thanks for replying. So I flashed the A2017_B15_FULL_EDL Android: 6.0.1 onto my a2017 axon 7. I replaced the NONHLOS.bin (modem) in the edl file with the Chinese modem which I took from A2017_B15_FULL_EDL Android: 6.0.1. I'm able to get network signal and works as expected.
I can't seem to lock the bootloader. Fastboot works on this firmware but the fastboot oem lock command does nothing, I keep getting failed.
Are you suggesting I flash stock firmware, one that has fastboot commands working, designed for a2017, lock the bootloader and then using a tool like djkuz Axon 7 EDL Tool flash a2017g firmware.
The reason why I need a2017g firmware is I'm tryna sell my axon at CEX and they won't accept it cos it has Chinese software. If it has European firmware with locked bootloader it'll pass their software check.
FuzzyDunlop9 said:
Thanks for replying. So I flashed the A2017_B15_FULL_EDL Android: 6.0.1 onto my a2017 axon 7. I replaced the NONHLOS.bin (modem) in the edl file with the Chinese modem which I took from A2017_B15_FULL_EDL Android: 6.0.1. I'm able to get network signal and works as expected.
I can't seem to lock the bootloader. Fastboot works on this firmware but the fastboot oem lock command does nothing, I keep getting failed.
Are you suggesting I flash stock firmware, one that has fastboot commands working, designed for a2017, lock the bootloader and then using a tool like djkuz Axon 7 EDL Tool flash a2017g firmware.
The reason why I need a2017g firmware is I'm tryna sell my axon at CEX and they won't accept it cos it has Chinese software. If it has European firmware with locked bootloader it'll pass their software check.
Click to expand...
Click to collapse
Yeah, that's basically it.
runninghamster said:
Yeah, that's basically it.
Click to expand...
Click to collapse
Ooh so it's possible to edl flash even with a locked bootloader?
FuzzyDunlop9 said:
Ooh so it's possible to edl flash even with a locked bootloader?
Click to expand...
Click to collapse
Yep.
Hello Team
i am stuck on Boot Loop after flashing V12A Rom using LGUP(with Patched DLL)
Last working rom was VS995-17A (non-rooted)
I successfully flashed V13A and V17A rom but no profit
tried UPDATE & PARTION DL modes
I tried US996 10F rom with LGUP - rom boots up but force closes in 10 seconds with errors com.android FC
My bootloader is locked - (checkd with fastboot getvar command)
I still have a working download mode
uccfar said:
Hello Team
i am stuck on Boot Loop after flashing V12A Rom using LGUP(with Patched DLL)
Last working rom was VS995-17A (non-rooted)
I successfully flashed V13A and V17A rom but no profit
tried UPDATE & PARTION DL modes
I tried US996 10F rom with LGUP - rom boots up but force closes in 10 seconds with errors com.android FC
My bootloader is locked - (checkd with fastboot getvar command)
I still have a working download mode
Click to expand...
Click to collapse
so your bootloader was looked when you tried to "update" rom?
if so thats your issue. you can try to connect to pc and put phone in fastboot mode and unlock bootloader.
cbissa18 said:
so your bootloader was looked when you tried to "update" rom?
if so thats your issue. you can try to connect to pc and put phone in fastboot mode and unlock bootloader.
Click to expand...
Click to collapse
No they cant. Fastboot oem unlock only works with the T-mobile variant (unlock works without a key but is missing flash commands) and the us unlocked us996 can unlock by flashing a key from lg but can actually flash roms.
@uccfar is using the term rom when meaning stock firmware, and if this didnt happen when rooted or trying to root it could easily be a hardware issue.
Phoenix591 said:
No they cant. Fastboot oem unlock only works with the T-mobile variant (unlock works without a key but is missing flash commands) and the us unlocked us996 can unlock by flashing a key from lg but can actually flash roms.
@uccfar is using the term rom when meaning stock firmware, and if this didnt happen when rooted or trying to root it could easily be a hardware issue.
Click to expand...
Click to collapse
I fixed my problems and my V20 VS995 is up and running .
Thanks goes to all the members who have posted their problems and a subsequent solution for each and every issue
uccfar said:
I fixed my problems and my V20 VS995 is up and running .
Thanks goes to all the members who have posted their problems and a subsequent solution for each and every issue
Click to expand...
Click to collapse
Just wondering, how did you fix your issue?
Thank you.
So back story, i used lg g6 last year and since there was no root i switched to huawei mate 10 pro and planned on sending g6 to a friend out of country and i was looking again yesterday if there was root but still none and i stumbled upon a thread about converting it to canadian h873 with 20g firmware and then to us997 20c september kdz and was able to boot back and able to connect to att and t mobile, havent tried BL unlock or root as us997 is unlocked model and i am finally happy that this g6 has some use, for anyone interested search in xda and you should find that thread and links for downloads.
Well after converting h871 to us997 using lgup and patched dll i am still not able to start fastboot, PC recognises device in adb and adb commands work fine but when i type adb reboot bootloader it boots to fastboot screen but my PC doesnt recognise it and fastboot device or any other fastboot commands not working but volte an att and wifi calling on t moblle working great, checked them to make and gauranteed to work but still unable to bootloader unlock, does anyone know another method, thanks.