Develop Bugs

huawei watch this device is unlocked and can't be trusted. Booting now...

Hey. I bought a usewatch. When charging watch, there is this inscription: "huawei watch this device is unlocked and can't be trusted. Booting now..."
when you press the power button nothing happens. when connected to the computer, nothing happens. Advise me what to do?

It had its bootloader unlocked. Not a huge deal to lock again. By having it unlocked allows for flashing TWRP recovery and custom rom

highaltitude said:
It had its bootloader unlocked. Not a huge deal to lock again. By having it unlocked allows for flashing TWRP recovery and custom rom
Click to expand...
Click to collapse
Please tell me, how to enter in TWRP recovery ?

I'm not sure of your level of Android flashing and custom things. This will give some good info. One of the easiest helper tools I found was Windroid tool.
http://forum.xda-developers.com/hua...al-complete-guide-how-to-flash-t3307137/page4
Windroid tool - - > http://forum.xda-developers.com/hua...roid-universal-android-toolkit-t3291270/page5

Pixel XL Stuck, Can't even get into recovery mode PLEASE HELP ME

It is stuck on a screen with the battery. I can get to bootloader mode but cannot get into recovery. Bootloader is locked... Please help
Basically I had the bootloader unlocked and it was rooted. I unrooted the phone and then I locked the bootloader and I am here now. Just wanted to make it go back to stock.

Is it a carrier model or a play store

https://forum.xda-developers.com/pixel-xl/how-to/psa-read-ca-bootloader-t3494615
This.

chapelfreak said:
Is it a carrier model or a play store
Click to expand...
Click to collapse
Google store

ASimpleSock said:
https://forum.xda-developers.com/pixel-xl/how-to/psa-read-ca-bootloader-t3494615
This.
Click to expand...
Click to collapse
I see the thread but it doesnt seem like theres a fix in it

tryfont said:
I see the thread but it doesnt seem like theres a fix in it
Click to expand...
Click to collapse
There probably isn't, if you've altered system and relock and toggle OEM unlocking off in dev. options you get bricked.

tryfont said:
It is stuck on a screen with the battery. I can get to bootloader mode but cannot get into recovery. Bootloader is locked... Please help
Basically I had the bootloader unlocked and it was rooted. I unrooted the phone and then I locked the bootloader and I am here now. Just wanted to make it go back to stock.
Click to expand...
Click to collapse
Did you try:
fastboot flashing unlock
Since you only relocked, you unlikely toggled "OEM unlock"?!
If it fails, I think you are SOL. Maybe someone with a proper solution will chime in. Otherwise, you have to RMA your device...
Good luck...

5.1 said:
Did you try:
fastboot flashing unlock
Since you only relocked, you unlikely toggled "OEM unlock"?!
If it fails, I think you are SOL. Maybe someone with a proper solution will chime in. Otherwise, you have to RMA your device...
Good luck...
Click to expand...
Click to collapse
It just says waiting for device and hangs there... I don't think it recognizes the phone
EDIT: IT WORKED!!!!!
It wouldnt recognize it and I ran fastboot continue and it just hanged there but I went into the bootloader mode and for like a quarter of a second it recognized it and forced it to boot

tryfont said:
It just says waiting for device and hangs there... I don't think it recognizes the phone
Click to expand...
Click to collapse
Open device manager in windows. Plug your phone and see how is your phone recognized.?!

5.1 said:
Open device manager in windows. Plug your phone and see how is your phone recognized.?!
Click to expand...
Click to collapse
Im on mac but its good now I edited my comment above. Only question is how to I completely clean the OS so I can relock bootloader without running into the same problem
This is whats happening to me- https://goo.gl/photos/2kv9Xo3HM3Mqn8AQ9

tryfont said:
Im on mac but its good now I edited my comment above. Only question is how to I completely clean the OS so I can relock bootloader without running into the same problem
Click to expand...
Click to collapse
Hey... Go into recovery and perform a factory reset.
Reboot bootloader and flash stock firmware. You could flash both slots to be sure your device is completely clean.
I wrote a how-to for someone having another issue. You.can follow this:
https://forum.xda-developers.com/showpost.php?p=71849370&postcount=28
When you are finished with flashing, reboot to be sure your system boot properly and your phone works as it should...
From here you can reboot into bootloader and issue:
fastboot flashing lock
If It was me I'd leave it unlocked though... Or at least OEM unlock enabled and ADB debugging ON. Since Google tend to release messed up OTA, you can always unlock the bootloader if needed.
But if you wish you can also disable the OEM unlock.
Good luck...

5.1 said:
Hey... Go into recovery and perform a factory reset.
Reboot bootloader and flash stock firmware. You could flash both slots to be sure your device is completely clean.
I wrote a how-to for someone having another issue. You.can follow this:
https://forum.xda-developers.com/showpost.php?p=71849370&postcount=28
When you are finished with flashing, reboot to be sure your system boot properly and your phone works as it should...
From here you can reboot into bootloader and issue:
fastboot flashing lock
If It was me I'd leave it unlocked though... Or at least OEM unlock enabled and ADB debugging ON. Since Google tend to release messed up OTA, you can always unlock the bootloader if needed.
But if you wish you can also disable the OEM unlock.
Good luck...
Click to expand...
Click to collapse
I'm pretty inexperienced with this kind of stuff and so you might have to explain it a bit further than what that link says. I did fastboot reboot bootloader in terminal but it can't find my device. Also I couldnt get into recovery when it was bricked so I probably still can't

tryfont said:
I'm pretty inexperienced with this kind of stuff and so you might have to explain it a bit further than what that link says. I did fastboot reboot bootloader in terminal but it can't find my device
Click to expand...
Click to collapse
Hey...
You boot into bootloader when the Device is powered off
Just like in your video: with power + volume down
You can see infos regarding:
Bootloader
Radio
S/N
DRAM
Boot-slot=
Etc...
This is the bootloader :good:
From here, unzip the google image you have downloaded, open the folder and from here run the flash-all script. Let your device reboot. Power it down, boot into bootloader again with power + volume down. Change active slot as I described in the link I gave you previously. Run the same flash-all again... Done!
Just for safety, remove your Google account before you continue. You'll add it again later...
Good luck...

5.1 said:
Hey...
You boot into bootloader when the Device is powered off
Just like in your video: with power + volume down
You can see infos regarding:
Bootloader
Radio
S/N
DRAM
Boot-slot=
Etc...
This is the bootloader :good:
From here, unzip the google image you have downloaded, open the folder and from here run the flash-all script. Let your device reboot. Power it down, boot into bootloader again with power + volume down. Change active slot as I described in the link I gave you previously. Run the same flash-all again... Done!
Just for safety, remove your Google account before you continue. You'll add it again later...
Good luck...
Click to expand...
Click to collapse
Alright thank you so much its doing the flashing right now. I really appreciate you helping...I was worried I'd have to get a replacement through google. Have a great day lad

tryfont said:
Alright thank you so much its doing the flashing right now. I really appreciate you helping...I was worried I'd have to get a replacement through google. Have a great day lad
Click to expand...
Click to collapse
Hey... Flash both slots... Just to be sure both are clean and nothing problematic​ remains on your device before locking your bootloader!
It could brick installing an OTA or whatever. Better restart 100% clean. :good:
Cheers...

Just flash the flash-all, relock and call it a day. Then you'll be fully stock and locked. I would however recommend rebooting once before locking to make sure its all good.

tryfont said:
It is stuck on a screen with the battery. I can get to bootloader mode but cannot get into recovery. Bootloader is locked... Please help
Basically I had the bootloader unlocked and it was rooted. I unrooted the phone and then I locked the bootloader and I am here now. Just wanted to make it go back to stock.
Click to expand...
Click to collapse
Hey man I have the same problem you can try calling Google support they can send you a replacement if you still have a warranty
my warranty has expired so I'm on my own

Cannot boot into bootloader/fastboot

Hello guys I have H815 and I can't proceed with unlocking bootloader cause my phone cannot boot into bootloader/fastboot mode. I'm not newbie, but with this phone everything goes ****ing different than in instruction.
I the instruction there is adb reboot bootloader. Of course my phone is seen in adb mode but after this command it just reboot to system. I tried also key combinations with no luck...
What to do?
My system is android 6

remialfa said:
Hello guys I have H815 and I can't proceed with unlocking bootloader cause my phone cannot boot into bootloader/fastboot mode. I'm not newbie, but with this phone everything goes ****ing different than in instruction.
I the instruction there is adb reboot bootloader. Of course my phone is seen in adb mode but after this command it just reboot to system. I tried also key combinations with no luck...
What to do?
My system is android 6
Click to expand...
Click to collapse
Hi,
I'm the same...
looking for solution I found this on Youtube:
Pratically, you have to press vol up while connect USB on PC....
I haven't the G4 with my today and so I cannot test if this is a valid mode...
If you do this, let me know if you can enter in fastboot mode

auceto63 said:
Hi,
I'm the same...
looking for solution I found this on Youtube:
Pratically, you have to press vol up while connect USB on PC....
I haven't the G4 with my today and so I cannot test if this is a valid mode...
If you do this, let me know if you can enter in fastboot mode
Click to expand...
Click to collapse
I did that and yeah it entered this mode but it's not valid bootloader/fastboot mode. It's some service mode to update firmware. Anyway it's not visible in pc as a normal fastboot and I cannot proceed further with unlocking bootloader...
Edit: it's download mode... So as I said it's not fastboot mode.
Anyone can help?

Seriously nobody? I thought this phone has good community and support...

I'm facing the exact same problem with my H810 on 6.0. Sick of not being able to root atleast.
Seriously hasn't anyone on earth found a way to boot this **** in fastboot? I mean there are a number of tutorials but everything goes different as F*** with this thing. Hope someone will update with good news. :fingers-crossed::fingers-crossed:

charith262 said:
I'm facing the exact same problem with my H810 on 6.0. Sick of not being able to root atleast.
Seriously hasn't anyone on earth found a way to boot this **** in fastboot? I mean there are a number of tutorials but everything goes different as F*** with this thing. Hope someone will update with good news. :fingers-crossed::fingers-crossed:
Click to expand...
Click to collapse
You can check out UsU. That is an unofficial bootloader unlock

ThePiGuy said:
You can check out UsU. That is an unofficial bootloader unlock
Click to expand...
Click to collapse
Thanks yeah I checked but that's for ARB<=2 devices. I forgot to mention earlier this godforsaken thing is ARB3.

I have an H811 (T-Mo) running firmware H81120p, ARB3. Doesn't seem to be much that can be done with it as far as rooting. It also has no stock recovery, only boots to system.

you did follow this official guide right? it unlocked mine after a few angry moments
http://developer.lge.com/resource/mobile/RetrieveBootloader.dev
use minimal ADB https://forum.xda-developers.com/showthread.php?t=2317790
Only way to boot twrp later is to use fastboot with ADB, recovery with buttons doesn't work.
if the device wont boot a rom use adb to get back in recovery.
if you use bank apps, install magisk before installing rom, do not get SU

samadee3 said:
you did follow this official guide right? it unlocked mine after a few angry moments
http://developer.lge.com/resource/mobile/RetrieveBootloader.dev
use minimal ADB https://forum.xda-developers.com/showthread.php?t=2317790
Only way to boot twrp later is to use fastboot with ADB, recovery with buttons doesn't work.
if the device wont boot a rom use adb to get back in recovery.
Click to expand...
Click to collapse
Only problem is that the info linked to above applies to ONE G4 variant only - the H815 international model. The rest of us are SOL. The bootloader on US carrier G4 - AT&T, T-Mo, VzW, etc (most later firmware revisions for G3 as well) models has been nailed down. The only exception is a G4 with ARB <= 2 can be hacked with UsU in order to root it and install a custom recovery.

SofaSpud said:
Only problem is that the info linked to above applies to ONE G4 variant only - the H815 international model. The rest of us are SOL. The bootloader on US carrier G4 - AT&T, T-Mo, VzW, etc (most later firmware revisions for G3 as well) models has been nailed down. The only exception is a G4 with ARB <= 2 can be hacked with UsU in order to root it and install a custom recovery.
Click to expand...
Click to collapse
Tmo is very easy
Go to dev options and enable adb
Then run "adb reboot bootloader"
Once there, run "fastboot oem unlock" and voila, you have an officially unlocked bootloader with no restrictions related to UsU
Please be aware the above will factory reset your device

ThePiGuy said:
Tmo is very easy
Go to dev options and enable adb
Then run "adb reboot bootloader"
Once there, run "fastboot oem unlock" and voila, you have an officially unlocked bootloader with no restrictions related to UsU
Please be aware the above will factory reset your device
Click to expand...
Click to collapse
Do you know anyone who has done it with H81120o or later? I've seen posts for two yrs about doing it that way, but I don't remember reading about it being done on 20o or later.
Sent from my SAMSUNG-SM-G935A using Tapatalk

SofaSpud said:
Do you know anyone who has done it with H81120o or later? I've seen posts for two yrs about doing it that way, but I don't remember reading about it being done on 20o or later.
Click to expand...
Click to collapse
Why v20o
Remember, this has nothing to do with UsU and therefore ARB etc doesn't matter
Edit: ps there are loads of H811 users in my Lineage thread and the other ROMs too

ThePiGuy said:
Why v20o
Remember, this has nothing to do with UsU and therefore ARB etc doesn't matter
Edit: ps there are loads of H811 users in my Lineage thread and the other ROMs too
Click to expand...
Click to collapse
Got it. Guess that it makes sense. ARB prevents rolling back to earlier release than 20o, I'm ok. Will try the BL unlock today then.
Sent from my SAMSUNG-SM-G935A using Tapatalk

I actually managed to get my LG V20 F800L into same situation after messing up my rooting process.
First i was stuck at logo and factory reset did nothing. Bootloader was working then.
Then i downloaded new firmware through "Download Mode", and after that i lost access to bootloader.
I know the phone model is different, but process seems to be very similar for all LG devices.
Trying to troubleshoot that atm, if i'll have results i'll post them here.
P.S. I know original poster long left (probably after throwing phone into a grinder), but maybe for someone with same problem as us in the future the info will be useful.

Florimer said:
I actually managed to get my LG V20 F800L into same situation after messing up my rooting process.
First i was stuck at logo and factory reset did nothing. Bootloader was working then.
Then i downloaded new firmware through "Download Mode", and after that i lost access to bootloader.
I know the phone model is different, but process seems to be very similar for all LG devices.
Trying to troubleshoot that atm, if i'll have results i'll post them here.
P.S. I know original poster long left (probably after throwing phone into a grinder), but maybe for someone with same problem as us in the future the info will be useful.
Click to expand...
Click to collapse
Ok, now i have to reply to my own post, since i believe i understand now something important:
LG phones usually dont have bootloader open to access. Until you use some exploits to do so.
I did not know that at the time of writing that reply.

Florimer said:
Ok, now i have to reply to my own post, since i believe i understand now something important:
LG phones usually dont have bootloader open to access. Until you use some exploits to do so.
I did not know that at the time of writing that reply.
Click to expand...
Click to collapse
Do you have more details about this? I seem to be in a similar situation than you and I'm struggling to make it work.

Can't unlock bootloader in realme 3

I've tried several in depth test apk,it either can't be installed or gets automatically close immediately on opening.can anyone of you suggest me how to unlock bootloader in realme 3 android 10 ui version 1.0 colors 7.

Yudhajit7 said:
I've tried several in depth test apk,it either can't be installed or gets automatically close immediately on opening.can anyone of you suggest me how to unlock bootloader in realme 3 android 10 ui version 1.0 colors 7.
Click to expand...
Click to collapse
I m having the same problem. The in depth test apk is not working on my phone. Please help

unlock your dev. mode
then shut down your phone
next, turn it one but press along lower button volume

The application does not open or does not install please

Unlock bootloader problem
Yudhajit7 said:
I've tried several in depth test apk,it either can't be installed or gets automatically close immediately on opening.can anyone of you suggest me how to unlock bootloader in realme 3 android 10 ui version 1.0 colors 7.
Click to expand...
Click to collapse
I install and run successfully but can't do anything in next step.
I can't enter to fastboot mode, it's nessesary to unlock bootloader.
Someone know solution please help!!!

Unlock Bootloader By Bugjaegar App.

thanhtu2592 said:
Unlock bootloader problem
I install and run successfully but can't do anything in next step.
I can't enter to fastboot mode, it's nessesary to unlock bootloader.
Someone know solution please help!!!
Click to expand...
Click to collapse
Have u unlocked your bootloader , if not use mtkclient , pretty straightforward, u can do it on your own.

Question Accidently locked bootloader.

Hello, i accidently locked my bootloader.
I can not get into fastboot mode again to unlock it again sadly since my device already had a patched magisk boot img.
It says my device is corrupt, therefor can't boot.
Is there anything i can do?
It does not allow me to progress like other screenshots i've seen sadly.

Fixed it myself by holding both Vol Keys and then Power.

That's good! Then, did you unlock the Bootloader again?

galaxys said:
That's good! Then, did you unlock the Bootloader again?
Click to expand...
Click to collapse
yes.