Wiko U Feel Prime bootloader unlock failed (unknown command) - Android Q&A, Help & Troubleshooting

Dear all,
I have made numerous attempts to unlock the bootloader of my Wiko U Feel Prime, but to no avail.
(My goal is to flash TWRP, root with Magisk and install LineageOS.)
USB debugging and OEM unlocking are enabled in the developer settings.
ADB recognises the device. When I execute adb reboot bootloader, the device reboots, and doesn't get past the "powered by Android" screen – but is nonetheless found by fastboot when I run fastboot devices. Seems like the USB drivers are functioning properly, correct?
Now, when I run fastboot oem unlock, I get the following response:
Code:
...
FAILED (remote: unknown command)
finished. total time: -0.000s
The command fastboot flashing unlock gives the same result.
Moreover, fastboot getvar all displays no unlocked variable. The command fastboot getvar unlocked yields
Code:
unlocked:
By the way, this phone was shipped SIM unlocked.
I've spent hours looking around the web for solutions, but everyone (including guides specifically written for Wiko U Feel Prime) simply says "unlock the bootloader" as if it's a trivial task. And I've run out of ideas. Could anyone help?
Thank you very much.

Related

impossible to unlock nexus 9 - adb said "no device"

Hello
I have a problem when I want to unlock my nexus 9.
First I have a problem because my tablet freezed.
I have made a factory reset, then google said me : used the first account to use your tablet" but I lost this account
So I want to flash my tablet.
to do that, I use the tutorial on HTC site. on step 5 they say:
type adb oem unlock
but the CMD windows just say:
<waiting for device>
then I try to show devices with adb device but my window don't show device.
to do those step my tablet was in recovery more "fastboot usb"
can you help me?
thanks
Jack
@jackvig Looks like you encountered Factory Reset Protection!
You can not use adb commands while in fastboot mode! "fastboot devices" should list your device.
And the command to unlock is "fastboot oem unlock" not adb!
Plus you won't be able to unlock the bootloader unless you have selected the option to do so in developer options, since you have factory reset that option may have been turned off even if you set it previously.
Your going to have to try and remember your account password to make the device usable.
Depending on what version/patch of the rom your device is on it maybe possible to Bypass FRP, google it.
If your device was on a very recent patch level, no bypass trick will work.
corkiejp said:
@jackvig Looks like you encountered Factory Reset Protection!
You can not use adb commands while in fastboot mode! "fastboot devices" should list your device.
And the command to unlock is "fastboot oem unlock" not adb!
Plus you won't be able to unlock the bootloader unless you have selected the option to do so in developer options, since you have factory reset that option may have been turned off even if you set it previously.
Your going to have to try and remember your account password to make the device usable.
Depending on what version/patch of the rom your device is on it maybe possible to Bypass FRP, google it.
If your device was on a very recent patch level, no bypass trick will work.
Click to expand...
Click to collapse
thanks @corkiejp for your reply
I agree with you for fastboot instead of adb but the result is the same.
I cannot go inside the tablet to change parameters
Some forum said that I can Unlock in recovery mode
Is it true?
when my tablet is in recovery mode (On/off + Vol Up)
the tablet show me device state : locked
I am in state HBOOT
the on my computer I do that
C:\Users\maison>fastboot oem unlock
...
(bootloader) ability is 0
(bootloader) Permission denied for this command!
OKAY [ 0.015s]
finished. total time: 0.018s
after I go in FASTBOOT mode then :
C:\Users\maison>fastboot oem unlock
< waiting for device >
what can I do to have the Key to unlock
No you need fastboot mode to unlock the bootloader!
Is the command "fastboot devices" listing your device. If not check your drivers for your device.
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot devices
HT4B6JT00881 fastboot
after that i try :
C:\Program Files (x86)\Minimal ADB and Fastboot>adb sideload volantis-ota-n9f27m-ad1aee0f.zip
loading: 'volantis-ota-n9f27m-ad1aee0f.zip'adb server is out of date. killing...
* daemon started successfully *
serving: 'volantis-ota-n9f27m-ad1aee0f.zip' (~0%) * failed to read command: Invalid argument
i think tablet i now connected to computer
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem unlock
...
(bootloader) ability is 0
(bootloader) Permission denied for this command!
OKAY [ 0.011s]
finished. total time: 0.014s
As suspected the option to unlock is not selected in developer options.
If your successful in sideloading an OTA image in recovery mode (not fastboot mode), you will still encounter FRP on booting the device.
Edit: - As said before ADB commands do not work in fastboot mode. And fastboot commands do not work in Recovery mode!
As said before your only hope is to remember your account and password used (or the very last account you used on the device might work).
If you haven't updated the rom in the last year, you maybe able to use FRP Bypass trick.
jackvig said:
Hello
I have a problem when I want to unlock my nexus 9.
First I have a problem because my tablet freezed.
I have made a factory reset, then google said me : used the first account to use your tablet" but I lost this account
So I want to flash my tablet.
to do that, I use the tutorial on HTC site. on step 5 they say:
type adb oem unlock
but the CMD windows just say:
<waiting for device>
then I try to show devices with adb device but my window don't show device.
to do those step my tablet was in recovery more "fastboot usb"
can you help me?
thanks
Jack
Click to expand...
Click to collapse
You should not have factory reset if you do not know the account password. It is protected by "factory reset protection". To prevent it from being used if it is stolen. You are most likely going to need the password for the account that was logged in when you reset.
Flashing is not going to help. And as mentioned previously, you cannot unlock the bootloader now since you cannot go into developer options and turn on oem unlocking.

Need help rooting Alcatel 1c (5003D)

Hi,
I've now spent quite a few frustrating hours trying to root my Alcatel 1c (model 5003D, running Android 8.1 Go) and nothing seems to work. A short overview of some of the rabbit holes I've gone down:
Root tools
Started with the obvious: root tools. In short, none that I ran work. There's a couple I haven't tried because the instructions were mostly in Russian and some googling turned up quite a few mentions of them containing malware, but other than that I've pretty much tried all the major ones.
Flashing images via fastboot
Naturally, the next place I turned was the awesome resource that is this forum. This thread gave me plenty of hope, but I was soon flummoxed by my device's fastboot mode for which a bunch of the normal features are either broken or are simply not implemented. Some examples of things that should work (and indeed work on other Alcatel phones, notably, it seems, ones that are not based on Spreadtrum) but didn't:
Code:
~/D/platform-tools > ./fastboot oem unlock
FAILED (remote: 'unknown cmd.')
fastboot: error: Command failed
Code:
~/D/platform-tools > ./fastboot oem unlock-go
FAILED (remote: 'unknown cmd.')
fastboot: error: Command failed
Code:
~/D/platform-tools > ./fastboot oem unlock-go --wipe
FAILED (remote: 'unknown cmd.')
fastboot: error: Command failed
Code:
~/D/platform-tools > ./fastboot flashing unlock
FAILED (remote: 'Not implemet.')
fastboot: error: Command failed
(note the spelling error in the error message...)
Code:
~/D/platform-tools > ./fastboot flash recovery ../recovery.img
Sending 'recovery' (28266 KB) OKAY [ 1.582s]
Writing 'recovery' FAILED (remote: 'Flashing Lock Flag is locked. Please unlock it first!')
fastboot: error: Command failed
That last one was particularly intriguing, as it suggests there is a Flashing Lock Flag that can be unlocked. I tried all of the fastboot commands that seemed relevant but couldn't find any way of setting that flag or even figuring out if it actually exists. I even rand the boot.img through strings to see if I could find something interesting, but didn't turn up anything.
Just to be clear, before doing all this I set the phone to Developer Mode and checked the "OEM unlocking" feature.
Flashing tools
I tried various tools with which it's possible to flash phones. A lot of them use fastboot under the covers which doesn't work (see above). Some of them don't but didn't work on my phone all the same, for various reasons:
SPD flash tool - After yet more Googling I stumbled upon the SPD flash tool,built specifically to flash Spreadtrum-based devices. I downloaded the latest version, installed all of the necessary USB drivers and tried to flash the phone with the stock ROM. No dice. The tool fails to connect to the device via the USB2Serial thing that it uses to communicate. No idea what's going on or why it won't work, and haven't yet mustered the courage to dive into the source code. Of course, if I do get it to work, then I have to figure out how to actually root the device using this tool. I'm guessing it will involve unpacking the ROM (a PAC file), modifying the recovery.img to a TWRP (or similar), repacking it and flashing the result. I've only managed the unpacking so far, no clue as to the other 2 steps. BTW, the SPD flash tool site als has a "factory" and a "research" tool, besides the "upgrade" tool that I tried. Unless I'm missing something, all three seem to be exactly the same (save for the color scheme).
Alcatel Mobile Upgrade S - Installs just fine and then allows you to choose your phone out of a dropdown... that doesn't include my model.
Sugar MTK/QCT - Installed it and the necessary drivers but it can't find my phone, no matter what I try. Also, I keep reading that it needs login credentials (wut?)
Conclusion: argh!
So, nothing so far. Since it's a Spreadtrum phone it has an engineering mode that can be explored with an APK I found in this thread. Nothing in the settings it reveals appears to be of any help though. I also contacted the makers of the AIO Alcatel toolkit to see if they had any ideas, but after I explained the situation one of them concluded "Hmmm. New one on me". Needless to say I also tried searching this forum for more tips, but googling 'site:forum.xda-developers.com "5003D"' returns no hits.
For now, I'm forced to conclude that there is a lot of really awesome tooling out there created by some very talented people, but none of it works on my phone. As of yet the 5003D appears pretty unrootable. If anyone has any tips to help me along or point me in the right direction, I would be very appreciative.
bump
bump
Then type the command to show the device
fastboot -i 0x1bbb devices
Execute the next command which will show device info including bootloader status (e.g. locked).
fastboot -i 0x1bbb oem device-info
This command is to unlock the bootloader on Alcatel device
fastboot -i 0x1bbb oem unlock
Repeat Step and you should see “Device unlocked: true”
To reboot normally type:
fastboot -i 0x1bbb reboot
Done
This command is to unlock the bootloader on Alcatel device
fastboot -i 0x1bbb oem unlock
Click to expand...
Click to collapse
I've tried that a bunch of times in an bunch of different ways, and unfortunately that doesn't work for this particular phone.
lotus118 said:
I've tried that a bunch of times in an bunch of different ways, and unfortunately that doesn't work for this particular phone.
Click to expand...
Click to collapse
Rooting your phone's Android does NOT require you fiddle around with its boot-loader. Forget trying to make use of Fastboot.
So how would I go about this without using fastboot?
lotus118 said:
So how would I go about this without using fastboot?
Click to expand...
Click to collapse
1. Open Windows command prompt and input the following comand
Code:
adb devices
2. Start the ADB sideload in your phone's recovery
3. Then input the following command in the Windows command prompt
Code:
adb sideload <filename.Zip>
where <filename.zip> must of course be the real full filepathname of ZIP to get flashed

Armour x5 Android 10

Hi, just got a brand new Armour x5, bought unlocked. It has Android 10 on it. First, I would like to back up entire phone without installing any apps at all, adb or fastboot commands to do so would be appreciated.
I tapped developer options 7 times, enabled adb, and OEM unlocking. I then adb reboot fastboot after allowing pc to connect, and in fastboot I try:
fastboot oem unlock
and
fastboot flashing unlock
C:\adb>adb devices
List of devices attached
3082SH1001004262 device
C:\adb>adb reboot recovery
C:\adb>fastboot devices
3082SH1001004262 fastboot
C:\adb>fastboot oem unlock
...
FAILED (remote: Command not supported in default implementation)
finished. total time: 0.010s
C:\adb>fastboot flashing unlock
...
FAILED (remote: Unrecognized command flashing unlock)
finished. total time: 0.010s
to no avail, fastboot just looks blackscreen and the tiniest of fonts lol... yes drivers are installed.
So I reboot, and try the Armour 6 tut, but Magisk manager has no option to patch the boot.img I extracted from stock firmware, it also has a distinct lack of advanced settings, most likely due to my not yet having flashed a twrp or magisk-20.4 due to still unable to find out about dm-verity, (is dm-verity different between android 9 + 10?) meaning I wont flash anything that will brick the fone before i even put a sim into it.
Any help appreciated. Google sux.
Edit: Well after 12 or so hours I can honestly say that rooting is all gone downhill, does anyone actually know what they are doing nowadays?
I read all 5 copies of the rooting procedure for this phone, none of which is anywhere near complete, and so very wrong. What might have worked years ago does not work now.
In the Armour x5, when rebooting into fastboot using adb reboot fastboot, we are taken to a black screen with the smallest of txt saying fastboot. This fastboot does not ****in work ('scuse the swearing) so dont tell people to do this, it wont work. Nothing works in this fastboot mode. What you have to do is go into ANOTHER fastboot, by going into what we call recovery, by pressing power and volume up button, then choosing fastboot, ONLY then will fastboot commands kind of work. I say kind of, because most of the fastboot commands do nothing anyway, but at least show some output proving that booting into fastboot from adb is useless now.
For instance, in the pure black screen fastboot, nothing is found in adb or fastboot shell, no 'null' (needing activation), no waiting, just black nothingness. But in the recovery version of fastboot, we see fastbootd at the top of the screen, this is the fastboot that recognises at least partial commands. But none I have actually tried re finding bootloader lock status etc, nada.
I also noticed, I do have shell access when in adb, but not recovery, so if anyone knows how to flash a twrp for android 10 using shell with no root, I'll try it on my not so shiney brand spankin blank fastbootin fone

TCL 20b Subforum

Hello there,
A newbie here, trying to unlock a TCL 20B (6159K) phone.
Android 11, November 2021 security patch (MTK Easy Su doesn't work with that, reportedly some vulnerability was patched), fastboot accessible but acting weird.
1. Got fastboot from here.
For some reason it doesn't understand the -i option, but connects with the only phone I'm trying to unlock attached anyway.
VID is 0x0e8d, btw.
2. Got adb from don't remember where about a year ago (for my previous Lenovo phone)
3. Unlocked the Developer Options
4. Checked "Allow bootloader unlock" and "Enable USB debugging" options there (not sure how those are named exactly in English, but I 100% guarantee, I've checked the right ones)
5. Sent phone into fastboot with
Code:
adb boot bootloader
6. Checked the unlockability with
Bash:
fastboot flashing get_unlock_ability
(bootloader) unlock_ability = 16777216
OKAY [ 0.005s]
Finished. Total time: 0.006s
7. Tried to unlock the thing, but
Code:
fastboot flashing unlock
FAILED (remote: 'not allowed in locked state')
fastboot: error: Command failed
and
Code:
fastboot flashing unlock_critical
FAILED (remote: 'not allowed in locked state')
fastboot: error: Command failed
8. Searching here, on XDA forums revealed there's no TCL 20B sub-form.
9. While there are tons of topics on not allowed in locked state, none of those helps.
fastboot oem unlock is seemingly an old way to do things (TCL 20B is a rather new device released WAY past 2015)
TCL is an Alcatel device, not a Xiaomi or some ZUK one, to require an account (haven't found anthing on "alcatel account")
trying to load some recovery from PC that might work failed as well (for the same reason)
Code:
[/LIST]
./fastboot boot twrp-3.6.1.img
Sending 'boot.img' (8932 KB) OKAY [ 0.212s]
Booting FAILED (remote: 'not allowed in locked state')
fastboot: error: Command failed
I've read some TCL 10 phones don't even have a fastboot, but TCL 20B clearly does.
Any Ideas how to unlock the bootloader?
P.S. Maybe a new sub forum for 20B? This got placed into the "TCL 20 5G" one, which doesn't seem right.
EDIT:
Ok, have found how to proceed on my own.
Even rooted the thing.
Go here https://github.com/bkerler/mtkclient, grab the ISO, backup, install patched magisk, patch the boot_a, flash patched boot_a and empty vbmeta_a, erase metadata, userdata and md_udc. Reboot, reinstall pathched magisk.
Don't lock the bootloader to avoid red state.
Huge kudos to mtkclient devs
Hello, i been trying to root my tcl 20b (6159a) but i cant figure how, i follow the instructions of mtkclient. Install it in windows, python, mtk repository, all the process, but when i try to replace boot_a.img it doesnt work from the cmd command, but in the python mtk_gui i can replace boot_a.bin and erase vbmeta_a.bin when i do it from there the cellphone keep in bootloop, i can fix the bootloop but cant root it. If u read this, can you plz be more specific with the steps, and made a little tutorial, its not necessary images or video just some more in deep info how you achieve root, thx

Question Trying to unlock Bootloader

Getting super frustrated!
Using ADB Debuging. Here are my steps.
1. adb devices
2. adb reboot bootloader
3.fastboot devices.
4. fastboot oem unlock
Then I get this...
FAILED (remote: unknown command)
finished. total time: 0.005s
after so many attempts I finally check adb devices and nothing shows up! It's like it automatically disconnects with adb debugging but it does not. Because I am able to to put fastboot reboot.
Can someone please help me with this! Thank you!
Use the fast boot command
Fastboot flashing unlock
Only this works on A12 devices
fastboot flashing unlock
oem unlock has been deprecated for awhile, manufacturers were just slow to implement changes.

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