Database Develop

Unable to unlock N6 bootloader (Android 6.0.1 Build MMB29X) [resolved]

Hi,
I am unable to unlock the bootloader on my Nexus 6, which was purchased new from Amazon.com. Or more accurately, I can issue the fastboot flashing unlock command without error, but my phone still says LOCKED and screen is frozen for 60 seconds.
I have followed the various HOWTOs on this website to the best of my ability:
1. Installed latest Android SDK tools(25.1.4.rc1), Platform-tools (24rc2) & Java8. I originally installed with the 23.1 platform-tools but then moved to the preview channel release when I had no luck.
2. USB debugging and OEM unlocking are both ON
3. Both "adb device" and "fastboot device" show my phone's serial number when in their respective modes, so I know communication is good between my laptop and phone.
How to replicate problem:
a. With my phone connected, I first issued "adb reboot bootloader". My phone then sucessfully changes to the AP Fastboot Flash Mode (Secure) screen. Beneath the green BATTERY OK (Charging) are the lines
Device is LOCKED. Status Code: 2
Transfer Mode: USB Connected
b. I then type "fastboot flashing unlock" and the output is
...
OKAY [ 0.016s]
finished. total time: 0.016s
However my phone does not ask me if I want to unlock. In fact, the screen then appears to be frozen -- pressing the volume up and down buttons does not change the power button selection menu. If I try to issue any other fastboot command, it says FAILED (command write failed (Unknown error)) finished. total time: 5.017s
The screen is frozen for 60 seconds. After that, the bootloader screen is once again functional (I can change menu options again) and I can issue new fastboot commands, such as 'fastboot reboot'
However, the device still says LOCKED and will refreeze for 60 seconds if I type 'fastboot flashing unlock'
Any suggestions would be appreciated!
Thank you.

type fastboot oem unlock to unlock your bootloader, then follow instruction. But beware, this will wipe your device

TMG1961 said:
type fastboot oem unlock to unlock your bootloader, then follow instruction. But beware, this will wipe your device
Click to expand...
Click to collapse
In newer versions of fastboot, the command is fastboot flashing unlock, not OEM unlock.
Code:
$ ./fastboot
usage: fastboot [ <option> ] <command>
commands:
update <filename> Reflash device from update.zip.
flashall Flash boot, system, vendor, and --
if found -- recovery.
flash <partition> [ <filename> ] Write a file to a flash partition.
flashing lock Locks the device. Prevents flashing.
flashing unlock Unlocks the device. Allows flashing
any partition except
bootloader-related partitions.

@webtrader,
@TMG1961 was trying to help you. Have you tried his recommendation before replying?

cam30era said:
@webtrader,
@TMG1961 was trying to help you. Have you tried his recommendation before replying?
Click to expand...
Click to collapse
No, I had not. I tried using fastboot oem unlock on an older version of the SDK toolkit and that had failed, but I had not tried using oem unlock again on the latest version, having noticed that "oem unlock" was no longer listed as an option.
I just tried it now on the latest SDK toolkit and it does indeed work for me. :good:
Thank you to the both of you for helping me out!

webtrader said:
No, I had not. I tried using fastboot oem unlock on an older version of the SDK toolkit and that had failed, but I had not tried using oem unlock again on the latest version, having noticed that "oem unlock" was no longer listed as an option.
I just tried it now on the latest SDK toolkit and it does indeed work for me. :good:
Thank you to the both of you for helping me out!
Click to expand...
Click to collapse
Welcome

i do believe the "fastboot flashing unlock" is for when a manufacture issues a binary token kinda of like how HTC does it. If the Nexus or any phone that is not carrier branded, "fastboot oem unlock" will be the command to pass.

Remote command not allowed for unlocked bootloader

I want to flash custom recovery in my phone but it shows
remote: command not allowed
In bootloader, it shows that it is unlocked.
i get the same error when I type
fastboot oem devices-info
remote: command not allowed
I tried
fastboot oem unlock XXXXXXX(huawei code)
and it shows my phone already unlocked
and I tried
fastboot oem relock XXXXXXX
it shows
remote root type is risk
and I tried
fastboot oem lock
it shows
remote command not allowed
The recovery is still Huawei e-recovery, it asked me to download the update but it always failed when it comes to download package.
What should I do now?

hjaxuan said:
I want to flash custom recovery in my phone but it shows
remote: command not allowed
In bootloader, it shows that it is unlocked.
i get the same error when I type
fastboot oem devices-info
remote: command not allowed
I tried
fastboot oem unlock XXXXXXX(huawei code)
and it shows my phone already unlocked
and I tried
fastboot oem relock XXXXXXX
it shows
remote root type is risk
and I tried
fastboot oem lock
it shows
remote command not allowed
The recovery is still Huawei e-recovery, it asked me to download the update but it always failed when it comes to download package.
What should I do now?
Click to expand...
Click to collapse
Connect to pc, issue unlock command, then
Fastboot flash recovery xxxxx.img
Where xxxxx is the name of custom recovery file. Take a picture of the error, if any and share here

muradulislam said:
Connect to pc, issue unlock command, then
Fastboot flash recovery xxxxx.img
Where xxxxx is the name of custom recovery file. Take a picture of the error, if any and share here
Click to expand...
Click to collapse
as i said, it shows that the phone already unlocked.
I able to flash the recovery successfully but when i tried to boot my recovery
it will show
remote command not allowed

hjaxuan said:
as i said, it shows that the phone already unlocked.
I able to flash the recovery successfully but when i tried to boot my recovery
it will show
remote command not allowed
Click to expand...
Click to collapse
To boot your recovery, disconnect from pc, press and hold power, vol up until a reboot, let go of power but keep the other pressed for about 5,6 sec more.

muradulislam said:
To boot your recovery, disconnect from pc, press and hold power, vol up until a reboot, let go of power but keep the other pressed for about 5,6 sec more.
Click to expand...
Click to collapse
Even though I had flash the recovery, when i enter recovery mode using this method, it is still showing huawei e recovery

hjaxuan said:
Even though I had flash the recovery, when i enter recovery mode using this method, it is still showing huawei e recovery
Click to expand...
Click to collapse
Did you disconnect it from PC before pressing and holding power, Vol up?
Just making sure...

muradulislam said:
Did you disconnect it from PC before pressing and holding power, Vol up?
Just making sure...
Click to expand...
Click to collapse
Yes and it show the fastboot
It shows that Phone Unlocked in red colour and FRP unlocked

hjaxuan said:
Yes and it show the fastboot
It shows that Phone Unlocked in red colour and FRP unlocked
Click to expand...
Click to collapse
And power + vol down also boots to fastboot mode?
If this is the case then I am of no help to you at all. Another user is facing the same problem and no solution there till now.

hjaxuan said:
Yes and it show the fastboot
It shows that Phone Unlocked in red colour and FRP unlocked
Click to expand...
Click to collapse
Phone off, disconnect cable to PC, vol+ and power - enter to recovery

DRUGER said:
Phone off, disconnect cable to PC, vol+ and power - enter to recovery
Click to expand...
Click to collapse
Yes I managed to enter huawei e recovery, the problem is i wan to flash the recovery but it show
remote command not allowed

hjaxuan said:
Yes I managed to enter huawei e recovery, the problem is i wan to flash the recovery but it show
remote command not allowed
Click to expand...
Click to collapse
Try to unlock bootloader again using
Fastboot OEM unlock xxxxxxxxxxxxxxxx
And then try flashing twrp again using
Fastboot flash recovery2 xxxxxx.img

muradulislam said:
Try to unlock bootloader again using
Fastboot OEM unlock xxxxxxxxxxxxxxxx
And then try flashing twrp again using
Fastboot flash recovery2 xxxxxx.img
Click to expand...
Click to collapse
I tried
fastboot oem unlock XXXXXXX
and it shows my phone already unlocked
and I tried
fastboot oem relock XXXXXXX
it shows
remote root type is risk
and I tried
fastboot oem lock XXXXXX
it shows
remote command not allowed

hjaxuan said:
I tried
fastboot oem unlock XXXXXXX
and it shows my phone already unlocked
and I tried
fastboot oem relock XXXXXXX
it shows
remote root type is risk
and I tried
fastboot oem lock XXXXXX
it shows
remote command not allowed
Click to expand...
Click to collapse
Just try
Fastboot OEM unlock xxxxxx
Followed by
Fastboot flash recovery xxxxxx.img
Many users reported that this worked. Don't do anything in between.

hjaxuan said:
Yes I managed to enter huawei e recovery, the problem is i wan to flash the recovery but it show
remote command not allowed
Click to expand...
Click to collapse
build number your firmware???

druger said:
build number your firmware???
Click to expand...
Click to collapse
nem-l22c636b140

hjaxuan said:
nem-l22c636b140
Click to expand...
Click to collapse
You may put screenshot comand line whith comand flashboot
Also try this TWRP https://drive.google.com/file/d/0B1Ez6wAY1mj6c0xxaTBUWmZVN1k/view?usp=sharing (Chinese)

Huawei E-Recovery is a secondary recovery. Try adb reboot recovery.
Sent from my honor 5X using XDA Labs

DRUGER said:
build number your firmware???
Click to expand...
Click to collapse
U don't have proper drivers installed.

Hi all ! I had exactly the same issue... The problem was solved by using the TWRP-CN image pointed by Druger ! (thank you mate) Any other attempt resulted into a fail. Twrp is of course in chinese language but follow this, and your life will be a bed of roses : youtube.com/watch?v=KOhR92EKD7A
Hope this will help
Note : Chinese NEM-AL10 2gigs ram model.

Huawei honor 5c
Can somebody help me my huawei (5c) i tried to install twrp on phone and it say command is not allowed. Im unlocked bootloader, i writed adb reboot bootloader, adb fastboot flash recovery xxxx.img and then it says command not allowed. Ps my file name is twrp and i try twrp.img on flashing

TWRP Fastboot Command not allowed (P10)

Hi!
I'm trying to install TWRP on my P10. I've unlocked bootloader on Huawei website.
Whenever I'm typing in fastboot "flash recovery twrp.img" it goes through and everything says OK
But when i try to "fastboot boot twrp.img" I get FAILED (remote: command not allowed)
"fastboot oem device-info" gives me the same error too and "fastboot oem unlock" gives me already fastboot unlocked

What do you thing "fastboot boot twrp.img" should do? This command isn't allowed because it does not exist.
If you want to boot into your flashed TWRP recovery, you have to enter "fastboot reboot" and press volume up while booting - the USB cable has to be disconnected.
Instead of "fastboot oem device-info" try "fastboot Gevtvar unlocked".

or use adb when the phone is running.
"adb reboot recovery"
you can't go direct from fastboot to recovery simply by a command

Yeah, the command was wrong, sorry xD
Anyway I thinks it's fixed now and I'm able to boot manually to recovery from phone now!

jejeje i was coming here to tell you about wrong command

I have the same problem with FAILED (remote: command not allowed). When I try to install or flash anything I see the info about FAILED (remote: command not allowed). I have FRP locked and I can't enable OEM developing option (it is inactive). I can't relock bootloader, can't instal TWRP, I have only simply erocevery where I can't wipe - only reboot and shutdown device.
I tried do update via dload, hwota - all with defeat
In ADB and Fastboot I can see my device connected.
Does anyone have any idea?

do you have instaled driver for P10, does computer recognice device like P10 ?

DiMeteo24 said:
I have the same problem with FAILED (remote: command not allowed). When I try to install or flash anything I see the info about FAILED (remote: command not allowed). I have FRP locked and I can't enable OEM developing option (it is inactive). I can't relock bootloader, can't instal TWRP, I have only simply erocevery where I can't wipe - only reboot and shutdown device.
I tried do update via dload, hwota - all with defeat
In ADB and Fastboot I can see my device connected.
Does anyone have any idea?
Click to expand...
Click to collapse
Any news? My p10+ it's in the same case

same problem im already unlock but the twr not install what is propper command

Hey guys, for all of you with "command not allowed" problem, you have to check OEM unlock setting on developer options but if you have a greyed out button, you need to flash again your stock room with a tool like dc-phoenix unlocker and bypass frp lock (on YouTube you will find tons of videos regarding this matter). Also, you can check if your Fastboot is protected (frp locked) on Fastboot screen...

There you go---> https://forum.xda-developers.com/hu...ution-bl-unlockedfrp-locked-fastboot-t3684302
PS READ the post to the END!! don't make mistakes it's really easy and fast. It works!

Hi guys.
I know this thread is pretty old but I'm getting the exact same problem as the OP except on my P20 Pro: I can flash a recovery but not boot one from fastboot.
The biggest difference is that my bootloader is unlocked and I have FRP Unlock, so according to every post I've seen it SHOULD be working.
My fastboot log:
PS C:\adb> fastboot devices
LCL0218415002142 fastboot
PS C:\adb> fastboot boot twrp-3.2.1-0-charlotte.img
downloading 'boot.img'...
OKAY [ 0.187s]
booting...
FAILED (remote: Command not allowed)
finished. total time: 0.187s

Armand Bernard said:
Hi guys.
I know this thread is pretty old but I'm getting the exact same problem as the OP except on my P20 Pro: I can flash a recovery but not boot one from fastboot.
The biggest difference is that my bootloader is unlocked and I have FRP Unlock, so according to every post I've seen it SHOULD be working.
My fastboot log:
PS C:\adb> fastboot devices
LCL0218415002142 fastboot
PS C:\adb> fastboot boot twrp-3.2.1-0-charlotte.img
downloading 'boot.img'...
OKAY [ 0.187s]
booting...
FAILED (remote: Command not allowed)
finished. total time: 0.187s
Click to expand...
Click to collapse
Have you try this command fasboot reboot recovery_ramdisk?

I get:
PS C:\adb> fastboot reboot recovery_ramdisk
fastboot: usage: unknown reboot target recovery_ramdisk
with "fastboot boot recovery_ramdisk" I get
error: cannot load 'recovery_ramdisk': No such file or directory

I sorted out my problem from a different angle so I no longer need to boot to TWRP from fastboot. Thanks for your help!

Question
Armand Bernard said:
I sorted out my problem from a different angle so I no longer need to boot to TWRP from fastboot. Thanks for your help!
Click to expand...
Click to collapse
Could you please tell me how did u solve this problem. thx

darkdante13 said:
Could you please tell me how did u solve this problem. thx
Click to expand...
Click to collapse
This was quite some time back so I don't remember all that well, but I think I just used the built in Huawei recovery, erecovery, to restore my whole phone and then I was able to reinstall my custom recovery and boot to it normally. I can't guarantee this as I don't remember the whole context of this. Using erecovery I didn't lose my locally stored files, only my apps and app data. Hope this helps.

Huawei P9 stuck In bootloop

what I have done is this:
Rooted phone
Installed TWRP
than I updated (stupid)
Lost root than I wanted to install Custom frimware what didnt work
Factory resetted phone, phone doesnt boot anymore now.
I can only access fastboot but I can not get fastboot to work on pc installed many different drivers just dont work.

lucmaas99 said:
what I have done is this:
Rooted phone
Installed TWRP
than I updated (stupid)
Lost root than I wanted to install Custom frimware what didnt work
Factory resetted phone, phone doesnt boot anymore now.
I can only access fastboot but I can not get fastboot to work on pc installed many different drivers just dont work.
Click to expand...
Click to collapse
Every two or three days people report here they bricked phones by forcing update or Factory reset (or relocking Bootloader) from custom or rooted phones (or by having TWRP) - one must first go back to the original stock firmware he had, before upgrading/resetting/relocking...
And this thread will also not help to somebody else -
since 'somebody' will not read (before bricking the phone) ;(
---
Do you still have TWRP - use HWOTA to flash stock
https://forum.xda-developers.com/showpost.php?p=75787156&postcount=3
If you have no TWRP but Fastboot is showing Bootloader unlocked, you should be able to flash TWRP.
If Fastboot is showing Bootloader locked but FRP unlocked, you should be able to unlock Bootloader.
But if there is no more TWRP and Fastboot is showing FRP and Bootloader locked - maybe DC Phoenix can help you
https://www.dc-unlocker.com/DC-Phoenix-flash-repair-tutorial

I used this command in fastboot: fastboot oem device-info
But I get this error: FAILED (remote: Command not allowed)
On my phone it says: Phone: unlocked and FRP: Lock

lucmaas99 said:
I used this command in fastboot: fastboot oem device-info
But I get this error: FAILED (remote: Command not allowed)
On my phone it says: Phone: unlocked and FRP: Lock
Click to expand...
Click to collapse
Yeah, this is not adb/fastboot drivers problem but a fact that you either did not keep OEM Unlocking or it locked due to your procedures. But you have no system to boot in and to unlock.
Is TWRP still on? Press and keep pressing Power until phone shuts down (from Fastboot).
Try to boot to recovery by keeping pressed Vol + and Power -- if it boots to TWRP proceed by HWOTA as above.
If it boots to eRecovery instead, maybe you can try Factory reset (although, I don't believe it will work)
If you don't have recovery anymore (and you have no system and FRP is locked) then you really bricked the phone, you should pay for DC Phoenix and try to unbrick

zgfg said:
Yeah, this is not adb/fastboot drivers problem but a fact that you either did not keep OEM Unlocking or it locked due to your procedures. But you have no system to boot in and to unlock.
Is TWRP still on? Press and keep pressing Power until phone shuts down (from Fastboot).
Try to boot to recovery by keeping pressed Vol + and Power -- if it boots to TWRP proceed by HWOTA as above.
If it boots to eRecovery instead, maybe you can try Factory reset (although, I don't believe it will work)
If you don't have recovery anymore (and you have no system and FRP is locked) then you really bricked the phone, you should pay for DC Phoenix and try to unbrick
Click to expand...
Click to collapse
I cannot get into to recovery but when I let the phone die and than it starts normally,
but everytime it turns off its get back stuck in bootloop I got my oem key when it booted back but now I tried unlocking it agian but it says this:
C:\adb>fastboot oem unlock <code>
...
FAILED (remote: Command not allowed)
finished. total time: 0.016s
C:\adb>fastboot reboot bootloader
rebooting into bootloader...
OKAY [ 0.023s]
finished. total time: 0.024s

lucmaas99 said:
I cannot get into to recovery but when I let the phone die and than it starts normally,
but everytime it turns off its get back stuck in bootloop I got my oem key when it booted back but now I tried unlocking it agian but it says this:
C:\adb>fastboot oem unlock <code>
...
FAILED (remote: Command not allowed)
finished. total time: 0.016s
C:\adb>fastboot reboot bootloader
rebooting into bootloader...
OKAY [ 0.023s]
finished. total time: 0.024s
Click to expand...
Click to collapse
I cannot flash anything because I cannnot enable USB debugging in developers options

zgfg said:
Yeah, this is not adb/fastboot drivers problem but a fact that you either did not keep OEM Unlocking or it locked due to your procedures. But you have no system to boot in and to unlock.
Is TWRP still on? Press and keep pressing Power until phone shuts down (from Fastboot).
Try to boot to recovery by keeping pressed Vol + and Power -- if it boots to TWRP proceed by HWOTA as above.
If it boots to eRecovery instead, maybe you can try Factory reset (although, I don't believe it will work)
If you don't have recovery anymore (and you have no system and FRP is locked) then you really bricked the phone, you should pay for DC Phoenix and try to unbrick
Click to expand...
Click to collapse
What can I do I can access phone but cannot unlock bootloader because cannot use remote commands and I can not get into any recovery menu I am out of idea's

lucmaas99 said:
I cannot flash anything because I cannnot enable USB debugging in developers options
Click to expand...
Click to collapse
You can boot to system?
Which (full name) build it shows in About?
Can you enable Developer options - then why cannot you enable USB debugging?!
You must first enable Allow ADB debugging in charge... and only then USB debugging -otherwise USB debugging switches off

zgfg said:
You can boot to system?
Which (full name) build it shows in About?
Can you enable Developer options - then why cannot you enable USB debugging?!
You must first enable Allow ADB debugging in charge... and only then USB debugging -otherwise USB debugging switches off
Click to expand...
Click to collapse
Modelnumber: EVA-L19
Build: NRD90M test-keys
I think I should not supposed to have test-keys doesnt seem correct?

So I got my phone to boot but everytime I want to do something in recovery or something else It wont boot anymore and than I need to make the battery run out of juice. are there anyfix without needing root recovery or fastboot.

ADB wont work because usb debugging wont turn on (tried many things), Fastboot kinda works but gives the error (remote command not allowed)
Cannot get into any Recovery I can boot to OS

phone corrupt and cant be trusted

i tried rooting my device but something went wrong after flashing the boot.img
now the device is stuck and i can only access fastboot.
i tried accessing the recovery but i get the same error msg.
i tried flashing every recovery img that exist for the red magic 3 but with no success

Flashing Unlock
Hey, make sure that you have first unlocked the bootloader with the fastboot command: "fastboot flashing unlock". Try it. It will erase all your data and do a reset factory and then you should be able to reboot your device normally. Also, it will let you flash the boot.img for root your device.

Perseo99 said:
Hey, make sure that you have first unlocked the bootloader with the fastboot command: "fastboot flashing unlock". Try it. It will erase all your data and do a reset factory and then you should be able to reboot your device normally. Also, it will let you flash the boot.img for root your device.
Click to expand...
Click to collapse
when i type "fastboot flashing unlock" in cmd it shows nothing .. just showing what commands i can do with fastboot

mashkalny said:
when i type "fastboot flashing unlock" in cmd it shows nothing .. just showing what commands i can do with fastboot
Click to expand...
Click to collapse
Did you let unlock bootloader and permitted the USB debbugin on the developers option before flash the boot.img?
Make sure you are using a USB 2.0 to connect your device to the PC. See if you PC recognizes the device into the fastboot menu with "fastboot devices", if doesn't, try reboot another phone with "adb rebbot bootloader", then enter "fastboot devices", your device should be listed into de the devices attached. Then try again entering "fastboot flashing unlock".

Perseo99 said:
Did you let unlock bootloader and permitted the USB debbugin on the developers option before flash the boot.img?
Make sure you are using a USB 2.0 to connect your device to the PC. See if you PC recognizes the device into the fastboot menu with "fastboot devices", if doesn't, try reboot another phone with "adb rebbot bootloader", then enter "fastboot devices", your device should be listed into de the devices attached. Then try again entering "fastboot flashing unlock".
Click to expand...
Click to collapse
i believe i forgot to unlock the bootloader when i tried to root. now i cant access anything in the fastboot mode.

mashkalny said:
i believe i forgot to unlock the bootloader when i tried to root. now i cant access anything in the fastboot mode.
Click to expand...
Click to collapse
Oh, that could be a problem. Try to use this tool. I hope you can get your phone working again. If this doesn't works, try to flash the original boot.img of your firmware version.
https://forum.xda-developers.com/re.../tool-nubia-red-magic-3-unbirck-tool-t3965044