[SOLVED]Problem with unlock bootloader - HTC U12+ Questions & Answers

Hi guys,
I'm getting crazy, I tried on 3 different computers and between win 10 and win 7, the drivers are installed well, the pc recognizes my u12 adb and fastboot mode without problems, but when I go to type "fastboot oem get_identifier_token" gives me always the same error: "FAILED (remote: unknown command)"
I tried different types of drivers, htc usb, I installed and reinstalled htcsync manager, I tried to delete and reinstall drivers manually with usb view, but nothing always the same error ... I read all the posts and guides to unlock the bootloader, and I run everything to perfection, except for that error that always comes out of the command prompt
could anyone kindly help me?
thank you

Is the phone in DOWNLOAD Mode?

no, the phone its in fastboot mode, is correct? or not?
thx

yes now i solved, my mistake was that always i reboot the phone in wrong mode, now its ok!!

Related

ADB drivers problem

I've been trying to unlock bootloader on my Moto G with Android 4.3 but my PC doesn't seem to recognize it in fastboot mode, tried installing all drivers two times tried this but i only get the error ''this device cannot start (code 10)'' and installing other drivers just doesn't work, so please help with this
Also when i put ''fastboot device'' in the command terminal it get stuck in <waiting for device>
I have Windows 7 64-bit(i've checked that all programs are for 64-bit), the phone is in debugging mode(i think) while in fastboot and MTP usb
oxodunk said:
I've been trying to unlock bootloader on my Moto G with Android 4.3 but my PC doesn't seem to recognize it in fastboot mode, tried installing all drivers two times tried this but i only get the error ''this device cannot start (code 10)'' and installing other drivers just doesn't work, so please help with this
Also when i put ''fastboot device'' in the command terminal it get stuck in <waiting for device>
I have Windows 7 64-bit(i've checked that all programs are for 64-bit), the phone is in debugging mode(i think) while in fastboot and MTP usb
Click to expand...
Click to collapse
to whoever has this problem,check you USB ports, if USB 1.0 it won't run the device, but a 2.0+ port will work with no problem

[Completed] 1 year problem "FAILED (remote: Command not allowed)".

Hello to You all!
Having a hell of a problem here and I cant solve it by myself, tryed like 10 times over the past year and its time to realize I´ve been beaten...
I wonder if its possible to enable usb debugging in Fastboot mode?
I have this Mediapad x2 that i tryed to unlock the bootloader on a year ago and though the bootloader unlocked (shown as "unlocked" in Fastboot mode) the phone never restarted again... It loops at the bootscreen. Vol down gets me to Fastboot though, both vol up/down gets me to auto restore but even if I have the right file on the SD-card the phones autorestore hangs at 90%...
All manual commands like "fastboot flash system system.img" or "fastboot flash recovery TWRP.img" only give´s me "FAILED (remote: Command not allowed)"...
I THINK it must be the USB debugging that doesn´t allow me to write, I´m not that advanced in this area...
Any help appreciated mates, I really liked this phone.
Thank You.
PetroLars said:
Hello to You all!
Having a hell of a problem here and I cant solve it by myself, tryed like 10 times over the past year and its time to realize I´ve been beaten...
I wonder if its possible to enable usb debugging in Fastboot mode?
I have this Mediapad x2 that i tryed to unlock the bootloader on a year ago and though the bootloader unlocked (shown as "unlocked" in Fastboot mode) the phone never restarted again... It loops at the bootscreen. Vol down gets me to Fastboot though, both vol up/down gets me to auto restore but even if I have the right file on the SD-card the phones autorestore hangs at 90%...
All manual commands like "fastboot flash system system.img" or "fastboot flash recovery TWRP.img" only give´s me "FAILED (remote: Command not allowed)"...
I THINK it must be the USB debugging that doesn´t allow me to write, I´m not that advanced in this area...
Any help appreciated mates, I really liked this phone.
Thank You.
Click to expand...
Click to collapse
Hello,
Do you have correct fastboot drivers installed on your system? Please run it with administrative privileges.
Regards
Vatsal,
Forum Moderator.
Vatsal said:
Hello,
Do you have correct fastboot drivers installed on your system? Please run it with administrative privileges.
Regards
Vatsal,
Forum Moderator.
Click to expand...
Click to collapse
Hi there and thank you for your answer.
Yes, i Believe I have the right drivers, tryed many different over time, nothing helped... My current phone (also Huawei) works with the installed drivers.
I dont know how to run them with administrative privileges though, I´ll Google how to open a command prompt that way.
Is there any drivers that I should try instead, Huaweis own I have tryed and also Googles.
Thanks again!
Same thing... 8(
Command prompt with admin privileges didn´t do it eather I´m sorry to confirm...

driver and fastboot issues

Hello, today I finally received my one plus 6. Been loving the device so far
I was on my way to Chuck a custom recovery and rom unlocked the bootloader no drama
I then hit a Plato of fastboot coming up with no command error as in fastboot isn't working in cmd I have researched heaps about it and I can not find a single thing. I tried to reinstall drivers and all that, and yes I'm running cmd in the fastboot files, only adb seems to be working but I can no longer use fastboot on my PC.
Has anyone come across this error, it seems to be that after installing the one plus drivers it stopped working correctly and fastboot commands no longer register in fastboot...
My phone is detected in fastboot mode so it's not the drivers. What could be causing this, is it the computer at fault?

Question Fastboot drivers not working

searching all over the internet on how get my computer to recognize my device in fastboot..
I already had universal adb drivers installed, along with android studio.. so adb worked out of the box. I tried to root, got to where I need to unlock the bootloader but no fastboot..
Tried reinstalling universal adb drivers, also tried a few other downloads from google with no luck on anything..
Searching the forums it seems like fastboot 'just works' for everyone else, so maybe something on my computer is messed up..idk
device manager just shows 'unknown android device'
my phone is oneplus 9 unlocked version, model LE2115
any help is appreciated
cass89 said:
searching all over the internet on how get my computer to recognize my device in fastboot..
I already had universal adb drivers installed, along with android studio.. so adb worked out of the box. I tried to root, got to where I need to unlock the bootloader but no fastboot..
Tried reinstalling universal adb drivers, also tried a few other downloads from google with no luck on anything..
Searching the forums it seems like fastboot 'just works' for everyone else, so maybe something on my computer is messed up..idk
device manager just shows 'unknown android device'
my phone is oneplus 9 unlocked version, model LE2115
any help is appreciated
Click to expand...
Click to collapse
I had the same issue with my op9 unlocking bl.
ADB and Fastboot 29.0.2.zip | by evildog1 for Utilities
Download GApps, Roms, Kernels, Themes, Firmware, and more. Free file hosting for all Android developers.
androidfilehost.com
Use these and open your command window from this . Makes a shortcut on your desktop. I did and unlocking bl worked perfectly.
cass89 said:
searching all over the internet on how get my computer to recognize my device in fastboot..
I already had universal adb drivers installed, along with android studio.. so adb worked out of the box. I tried to root, got to where I need to unlock the bootloader but no fastboot..
Tried reinstalling universal adb drivers, also tried a few other downloads from google with no luck on anything..
Searching the forums it seems like fastboot 'just works' for everyone else, so maybe something on my computer is messed up..idk
device manager just shows 'unknown android device'
my phone is oneplus 9 unlocked version, model LE2115
any help is appreciated
Click to expand...
Click to collapse
Double post
ok now I'm confused.. those drivers didn't work. following the root guide on here it says 'unlock the usual way''boot to bootloader''issue command 'fastboot flashing unlock''
so I decided to try rebooting to fastboot instead, which brought me to fastbootd
fastboot does recognize fastbootd, but the unlock command "flashing unlock" is unrecognized
So do I use bootloader or fastbootd to issue the unlock command?
if the latter, why would fastbootd not recognize the command?
the 'oem unlock' option is ticked on...
cass89 said:
ok now I'm confused.. those drivers didn't work. following the root guide on here it says 'unlock the usual way''boot to bootloader''issue command 'fastboot flashing unlock''
so I decided to try rebooting to fastboot instead, which brought me to fastbootd
fastboot does recognize fastbootd, but the unlock command "flashing unlock" is unrecognized
So do I use bootloader or fastbootd to issue the unlock command?
if the latter, why would fastbootd not recognize the command?
the 'oem unlock' option is ticked on...
Click to expand...
Click to collapse
Make sure you enable oem unlocking in dev options first and reboot.Reboot to bootloader,issue command $fastboot flashing unlock..
cass89 said:
ok now I'm confused.. those drivers didn't work. following the root guide on here it says 'unlock the usual way''boot to bootloader''issue command 'fastboot flashing unlock''
so I decided to try rebooting to fastboot instead, which brought me to fastbootd
fastboot does recognize fastbootd, but the unlock command "flashing unlock" is unrecognized
So do I use bootloader or fastbootd to issue the unlock command?
if the latter, why would fastbootd not recognize the command?
the 'oem unlock' option is ticked on...
Click to expand...
Click to collapse
Are you a carrier variant or global unlocked 9/9pro?
OEM unlocking is enabled, reboot to bootloader, command 'fastboot devices' shows no devices
Still have unknown android device in device manager
It's a global unlocked 9
cass89 said:
OEM unlocking is enabled, reboot to bootloader, command 'fastboot devices' shows no devices
Still have unknown android device in device manager
It's a global unlocked 9
Click to expand...
Click to collapse
Did you create a shortcut to those adb driver's when you installed; on desktop. And open cmd window in that spot. ?
mattie_49 said:
Did you create a shortcut to those adb driver's when you installed; on desktop. And open cmd window in that spot. ?
Click to expand...
Click to collapse
I'm not sure what you mean by shortcut
I unzipped the file to my desktop, then tried installing driver through device manager, but no driver was found.. I then tried installing the driver with the "DPInst_x64.exe" file, but it says install failed with no other explanation
I tried just opening a command prompt in that folder, but with no driver installed, it still isn't recognized
Thanks for helping, I'm lost at this point lol
cass89 said:
I'm not sure what you mean by shortcut
I unzipped the file to my desktop, then tried installing driver through device manager, but no driver was found.. I then tried installing the driver with the "DPInst_x64.exe" file, but it says install failed with no other explanation
I tried just opening a command prompt in that folder, but with no driver installed, it still isn't recognized
Thanks for helping, I'm lost at this point lol
minimal_adb_fastboot_v1.4.3_setup.exe | by shimp208 for Utilities
Download GApps, Roms, Kernels, Themes, Firmware, and more. Free file hosting for all Android developers.
androidfilehost.com
Click to expand...
Click to collapse
Try one more thing. Install these and creat shortcut on desktop and try opening cmd in this. We gonna get you unlocked.
One last thing. You have also went into developer options and tic'ed "USB debugging on then ok on device when it asks if you wanna allow phone to communicate.
tried that, still nothing. usb debugging is on.
all I need is a working driver, everything else should be good..
one thing which i'm not sure if it's an issue, I'm using an old usb c to usb 2 cable, I'm not using the cable that came with the phone because my computer doesn't have usb c ports.. but adb and mass storage/file transfers work with no issue
Hate to say it, but it still COULD be your old USB cord even with file transfer and adb functionality preserved. I had a cord that did do file transfer but not adb. You should try another cord...
Here's another driver source to download:
Universal ADB Drivers
2 new cords, and also tried multiple driver downloads, but still nothing... i was really hoping to root this phone and it seemed so easy for everyone else, thats why i bought it.. but I guess I'm stuck with a locked bootloader...
I could try factory resetting windows or the phone, but would that even make a difference?
..rereading the root guide, at the beginning it says "if you're on global and want root, flash the eu boot.img" but I'm not sure if he means do that first or use that for the guide.. I'm assuming I need the bootloader unlocked in order to flash it first, but maybe not..
..also should I have just commented in the root guide post, instead of making a new post?..
I'm sure you've tried another usb port on your computer.
Last thing to try: another PC.
Shouldn't come to that, but that's where you look to be.
Got it!! Someone posted about the op6 not working either and the fix is turning off windows driver signature, not sure why but that worked for me..
Thanks, now on to root lol
I just had some serious fastboot driver issues when setting up my oneplus. Not sure if this helps but can you at least find the driver folder that was installed on your c:drive when you initially installed the drivers. Then check your device manager when your phone is in fastboot and update the device (usually under portable devices) through that path?
If you get a tampering /corrupt error when you do this you can disable driver signing in windows which is what worked for me thanks to this saint.
[Guide] Fix Device Not Showing Up In Fastboot Mode (Windows 10/11)
You sir are saint...I've been trying to get fastboot to recognize my OP6T for the last 8 hours. Thank you so much!
forum.xda-developers.com
Edit: you solved it while I was responding....I had the same issue..congrats...I know the feeling!

Question [Solved] Re-locking bootloader - no fastboot commands working

Hi everyone.
I´ve decided today that I want to re-lock my bootloader on Lenovo P11 tablet and I discovered no fastboot commands work on that.
I installed clean version of ROM from Lenovo Rescue and Smart Assistant (TB_J606L_S120217_210805_ROW) but still nothing works.
Normally i reboot to Fastboot and try "fastboot flashing lock" but i recieve:
< waiting for any device >
FAILED (remote: 'Unrecognized command flashing lock')
fastboot: error: Command failed
When i try others like "fastboot oem lock" i recieve:
FAILED (remote: 'Command not supported in default implementation')
fastboot: error: Command failed
Does anyone has any advice what can I do to relock bootloader?
1. enable developer option
2. enable oem unlock in developer option
3. boot to fastboot mode and run
fastboot flashing lock
Thanks @ong14 for your reply but as you can see above I already tried that...
If you're on chinese firmware, try "fastboot oem unlock-go".
Sadly I get this response for this command:
FAILED (remote: 'Command not supported in default implementation')
fastboot: error: Command failed
Is it possibly because of version of my ADB and Fastboot tools? I downloaded many versions (lastly directly from Android Studio) but it didn´t fix anything. @ong14, could you possibly upload the tools you are using?
Sorry for my last reply, it should be "fastboot oem lock-go".
AFAIK, if you're on global rom, use this "fastboot flashing lock".
And if you're on chinese rom, use this "fastboot oem lock-go"
I'm using an old minimal adb and fastboot.
It is totally OK, I am grateful that you are trying to help me at all.
I will try your old adb and fastboot tools and see what happens.
Sadly I don´t have much hope. I am on global rom and command "fastboot flashing lock" resulted only in:
"
FAILED (remote: 'Unrecognized command flashing lock')
fastboot: error: Command failed
"
I will keep you posted about my progress and what else I tried.
Well, sadly, still nothing. I tried everything I could think of. I even tried different PC, flash rom with QFIL even with stock bootloader. I still get the same response.
Did anyone else run into this problem?
Edit: After further investigation it seems that I shouldn´t be in the fastboot mode but in the bootloader mode. There i should try "fastboot flashing lock".
Sadly, I see my P11 in device manager only as unrecognized Android device and no drivers seem to change that. Tablet also isn´t visible in the "adb devices" or the "fastboot devices"
Does anyone pls have working drivers or should I continue trying fastboot mode?
Edit2: OMG, I finally solved it. Yes, i shouild be trying to lock the bootloader from the bootloader mode from the start. After I booted to bootloader mode, installed Lenovo USB drivers (https://www.mediafire.com/file/1bzfblquyofokgi/LenovoUsbDriver_v1.1.34.zip/file) and it finally worked!
kure94 said:
Well, sadly, still nothing. I tried everything I could think of. I even tried different PC, flash rom with QFIL even with stock bootloader. I still get the same response.
Did anyone else run into this problem?
Edit: After further investigation it seems that I shouldn´t be in the fastboot mode but in the bootloader mode. There i should try "fastboot flashing lock".
Sadly, I see my P11 in device manager only as unrecognized Android device and no drivers seem to change that. Tablet also isn´t visible in the "adb devices" or the "fastboot devices"
Does anyone pls have working drivers or should I continue trying fastboot mode?
Edit2: OMG, I finally solved it. Yes, i shouild be trying to lock the bootloader from the bootloader mode from the start. After I booted to bootloader mode, installed Lenovo USB drivers (https://www.mediafire.com/file/1bzfblquyofokgi/LenovoUsbDriver_v1.1.34.zip/file) and it finally worked!
Click to expand...
Click to collapse
My guy, you are brilliant. I wonder why the change from oem to flashing was done and were you getting sent to that fastbootd menu too? This worked for my 2020 Moto Edge and I don't know how much longer I would have needed without you.
Thanks.
kure94 said:
Well, sadly, still nothing. I tried everything I could think of. I even tried different PC, flash rom with QFIL even with stock bootloader. I still get the same response.
Did anyone else run into this problem?
Edit: After further investigation it seems that I shouldn´t be in the fastboot mode but in the bootloader mode. There i should try "fastboot flashing lock".
Sadly, I see my P11 in device manager only as unrecognized Android device and no drivers seem to change that. Tablet also isn´t visible in the "adb devices" or the "fastboot devices"
Does anyone pls have working drivers or should I continue trying fastboot mode?
Edit2: OMG, I finally solved it. Yes, i shouild be trying to lock the bootloader from the bootloader mode from the start. After I booted to bootloader mode, installed Lenovo USB drivers (https://www.mediafire.com/file/1bzfblquyofokgi/LenovoUsbDriver_v1.1.34.zip/file) and it finally worked!
Click to expand...
Click to collapse
Install RSA from Lenovo also works, and you can run rescue if you want to go back to 100% bone stock
kure94 said:
Well, sadly, still nothing. I tried everything I could think of. I even tried different PC, flash rom with QFIL even with stock bootloader. I still get the same response.
Did anyone else run into this problem?
Edit: After further investigation it seems that I shouldn´t be in the fastboot mode but in the bootloader mode. There i should try "fastboot flashing lock".
Sadly, I see my P11 in device manager only as unrecognized Android device and no drivers seem to change that. Tablet also isn´t visible in the "adb devices" or the "fastboot devices"
Does anyone pls have working drivers or should I continue trying fastboot mode?
Edit2: OMG, I finally solved it. Yes, i shouild be trying to lock the bootloader from the bootloader mode from the start. After I booted to bootloader mode, installed Lenovo USB drivers (https://www.mediafire.com/file/1bzfblquyofokgi/LenovoUsbDriver_v1.1.34.zip/file) and it finally worked!
Click to expand...
Click to collapse
Where and how do you get the drivers for this tablet? For some reason I'm stuck in (what I think) is the exact same screen on my tablet. It says fastboot... in the lower left hand corner and you can hear the disconnect chime come from my laptop every few seconds. I punch in fastboot devices and it's stuck in limbo, no error codes or anything.
BakedinRC said:
Where and how do you get the drivers for this tablet? For some reason I'm stuck in (what I think) is the exact same screen on my tablet. It says fastboot... in the lower left hand corner and you can hear the disconnect chime come from my laptop every few seconds. I punch in fastboot devices and it's stuck in limbo, no error codes or anything.
Click to expand...
Click to collapse
Did you check device manager?
I didn't think I had to, when I plug in the tablet it pops up with the name and everything.
I'll try the Motorola drivers, is that going to solve the fastboot stuck screen?
Where do I go about getting the Motorola drivers?
hey mate. i had problem. now my Xiaoxin Tablet Pro 2021 having widevine L3 even i already lock the BootLoader and Stock Rom. how do i get Widevine L1 ?
kure94 said:
Well, sadly, still nothing. I tried everything I could think of. I even tried different PC, flash rom with QFIL even with stock bootloader. I still get the same response.
Did anyone else run into this problem?
Edit: After further investigation it seems that I shouldn´t be in the fastboot mode but in the bootloader mode. There i should try "fastboot flashing lock".
Sadly, I see my P11 in device manager only as unrecognized Android device and no drivers seem to change that. Tablet also isn´t visible in the "adb devices" or the "fastboot devices"
Does anyone pls have working drivers or should I continue trying fastboot mode?
Edit2: OMG, I finally solved it. Yes, i shouild be trying to lock the bootloader from the bootloader mode from the start. After I booted to bootloader mode, installed Lenovo USB drivers (https://www.mediafire.com/file/1bzfblquyofokgi/LenovoUsbDriver_v1.1.34.zip/file) and it finally worked!
Click to expand...
Click to collapse
what did u do after installing the usb drivers?...can u pls explain in detail?....actually im facing the same problem again and again
me too can't figure it out, very sad

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