I have a Micromax A290 [Canvas Knight Cameo] which is rooted. I have installed adb and fastboot drivers in my PC running Windows 8.1. I am trying to unlock the bootloader of my device.
So I connect the device, type "adb reboot bootloader" and the phone boots into fastboot mode.
Next, I type "fastboot oem unlock" to unlock my bootloader.
The phone asks me for confirmation and I go for Yes.
Here is the problem.
After I choose yes, a message comes up in my device saying this:
"BOOTLOADER UNLOCK FAILED. RETURNING TO FASTBOOT IS 3s..."
I have tried everything I know. Used a different cable, used another port, but to no avail.
Please help me.
Thanks in advance.
Tiks_Baralous said:
I have a Micromax A290 [Canvas Knight Cameo] which is rooted. I have installed adb and fastboot drivers in my PC running Windows 8.1. I am trying to unlock the bootloader of my device.
So I connect the device, type "adb reboot bootloader" and the phone boots into fastboot mode.
Next, I type "fastboot oem unlock" to unlock my bootloader.
The phone asks me for confirmation and I go for Yes.
Here is the problem.
After I choose yes, a message comes up in my device saying this:
"BOOTLOADER UNLOCK FAILED. RETURNING TO FASTBOOT IS 3s..."
I have tried everything I know. Used a different cable, used another port, but to no avail.
Please help me.
Thanks in advance.
Click to expand...
Click to collapse
Hi and welcome to XDA.
I couldn't find much information about your device here except this thread http://forum.xda-developers.com/android/general/tutorial-micromax-canvas-knight-a290-t2872896. Try posting your query there or in Android Q&A,Help and Troubleshooting. Experts there may be able to help you.
Good luck
Hi ,
I have recently purchased a Yu Yuphoria 5010A. I thought it had cyanogen mod but found to have just Android OS.
I have searched this forum for unlocking OEM and installing recovery to install cyanogen mod. I activated allow oem unlock in developers options and then tried to unlock via fastboot . fastboot detects the device but I am unable to unlock oem as it says "remote : oem unlock not allowed " . I was able to temporary boot into cwm recovery using "fastbbot 0x2A96 boot recovery.img" but it was not able to further install the mod.
Can you help with unlock the oem and install cyanogen mod. coz all the steps mentioned in this site and others have failed.
Thank you
Hii I also bought same model and also want cynogenmod os. But I don't know if its possible to flash cynogen os . but I rooted my phone an d its working perfectly. I had same problem of can't open bootloder not allowed to open bootloader. I checked the allow to open OEM in developer option. I guess this model has already unlocked bootloader cause I just rooted it even when it said can't unlock bootloader. You can try it but download stock ROM before if anything goes wrong. And please tell me if I can flash cynogen mod is it safe
shreyash11 said:
Hii I also bought same model and also want cynogenmod os. But I don't know if its possible to flash cynogen os . but I rooted my phone an d its working perfectly. I had same problem of can't open bootloder not allowed to open bootloader. I checked the allow to open OEM in developer option. I guess this model has already unlocked bootloader cause I just rooted it even when it said can't unlock bootloader. You can try it but download stock ROM before if anything goes wrong. And please tell me if I can flash cynogen mod is it safe
Click to expand...
Click to collapse
How you rooted it bro without unlocking the bootloader am also having the issue with oem unlocking
abees said:
How you rooted it bro without unlocking the bootloader am also having the issue with oem unlocking
Click to expand...
Click to collapse
As I said I think the bootloader in y5010A is already unlocked. I have a rooting guide I can upload it if anyone want. You just have to check the allow OEM unlocking in developer option
Guys, please take a look: http://forum.xda-developers.com/yu-yuphoria/help/guide-unlock-bootloader-yu-yuphoria-t3365251
Titokhan said:
Guys, please take a look: http://forum.xda-developers.com/yu-yuphoria/help/guide-unlock-bootloader-yu-yuphoria-t3365251
Click to expand...
Click to collapse
Thanx..but can I flash cynogen is on y5010A.
fastboot model : fastboot oem unlock
shreyash11 said:
Thanx..but can I flash cynogen is on y5010A.
Click to expand...
Click to collapse
you can flash cyanogenmod.. am using it....
Sent from my Hot Tempered Yuphoria
hi all!
when i write fastboot -i 0x2A96 oem unlock, it shows okay finished only. and the device is not unlocked. please help!
coolakash said:
Hi ,
I have recently purchased a Yu Yuphoria 5010A. I thought it had cyanogen mod but found to have just OS.
I have searched this forum for unlocking OEM and installing recovery to install cyanogen mod. I activated allow oem in options and then tried to via fastboot . fastboot detects the device but I am unable to oem as it says "remote : oem not allowed " . I was able to temporary boot into cwm recovery using "fastbbot 0x2A96 boot recovery.img" but it was not able to further install the mod.
Can you help with the oem and install cyanogen mod. coz all the steps mentioned in this site and others have failed.
Thank you
Click to expand...
Click to collapse
download kingroot.apk and then open it( it will unlock bootloader )
and then ownload root checker basic.apk (it will verify the root access )
and then download flashify.apk (it help you to flash twrp)
coolakash said:
Hi ,
I have recently purchased a Yu Yuphoria 5010A. I thought it had cyanogen mod but found to have just Android OS.
I have searched this forum for unlocking OEM and installing recovery to install cyanogen mod. I activated allow oem unlock in developers options and then tried to unlock via fastboot . fastboot detects the device but I am unable to unlock oem as it says "remote : oem unlock not allowed " . I was able to temporary boot into cwm recovery using "fastbbot 0x2A96 boot recovery.img" but it was not able to further install the mod.
Can you help with unlock the oem and install cyanogen mod. coz all the steps mentioned in this site and others have failed.
Thank you
Click to expand...
Click to collapse
did u solve it , m also stuck
Arzan03 said:
did u solve it , m also stuck
Click to expand...
Click to collapse
I had directly flashed cm12.1 fastboot file after that i had unlocked my bootloader
Sent from my YU5010 using Tapatalk
Hi guys
I own a YU-phoria YU-5010 which is Non-rooted and is in Boot loop I have tried to flash my device and install twrp but nothing happens Remote OEM is not allowed and I can not access usb debugging or root my phone can any one help?
Bill1303 said:
Hi guys
I own a YU-phoria YU-5010 which is Non-rooted and is in Boot loop I have tried to flash my device and install twrp but nothing happens Remote OEM is not allowed and I can not access usb debugging or root my phone can any one help?
Click to expand...
Click to collapse
Flash stock ROM first version from firmwarefile.com
Then unlock bootloader after that install twrp.
Unable to unlock bootloader
I have YU5010A model. I got stock Android with 5.1 Version. Now i am trying to unlock bootloader. with " fastboot -i 0x2A96 oem unlock" it return with error " remote oem unlock is not allowed". I want to install Custom ROM AOSP v7.1. I am unable to unlock bootloader. I am also tried by Rooting with Kingo root.
Steps : >>Recovery mode(by pressing upvol + powerbutton)
>> Install package from SD Card
>> Return error " No permision" (in root)
It just like messy. I don't know what is TWRP or CWM. Please help me...
My Moto E (2nd generation)(Otus) does not boot
I never tried unlocking bootloader or any other modifications.
Once I tried to reboot phone normally, from then it won't boot
It says "Boot image verification failed."
After this problem tried unlocking bootloader but asks
' "Check OEM Unlock" in developer options in settings'
but how can check OEM unlock option when the Device does not boot.
Now should I do to boot my device or to unlock the boot loader?
Thanks
rajkumar
xdajarj said:
My Moto E (2nd generation)(Otus) does not boot
I never tried unlocking bootloader or any other modifications.
Once I tried to reboot phone normally, from then it won't boot
It says "Boot image verification failed."
After this problem tried unlocking bootloader but asks
' "Check OEM Unlock" in developer options in settings'
but how can check OEM unlock option when the Device does not boot.
Now should I do to boot my device or to unlock the boot loader?
Thanks
rajkumar
Click to expand...
Click to collapse
Greetings and welcome to assist. The second generation is the 2015 edition I think. This thread here will tell you how to unbrick your device
https://forum.xda-developers.com/showpost.php?p=63265569&postcount=4
There are also lots of useful guides here
https://forum.xda-developers.com/showpost.php?p=63265594&postcount=7
Good Luck
Sawdoctor
Thank you for the response
sawdoctor said:
Greetings and welcome to assist. The second generation is the 2015 edition I think. This thread here will tell you how to unbrick your device
https://forum.xda-developers.com/showpost.php?p=63265569&postcount=4
There are also lots of useful guides here
https://forum.xda-developers.com/showpost.php?p=63265594&postcount=7
Good Luck
Sawdoctor
Click to expand...
Click to collapse
I have tried Unlocking boot loader but it says "Check OEM unlock " option in developer options, how can check this when it won't boot
Thank you
rajkumar
xdajarj said:
I have tried Unlocking boot loader but it says "Check OEM unlock " option in developer options, how can check this when it won't boot
Thank you
rajkumar
Click to expand...
Click to collapse
Have you tried asking your question in the thread I linked, the users there have your device and may be able to assist you better
Regards
Sawdoctor
Device: Yu Yunique
I flashed stock fastboot rom (YU OS) and it booted. After that, I did "fastboot oem lock" and phone not booting. fastboot not allowing me to flash another rom too.
I googled about this and it says I need to enabled USB debugging from dev tools. But since phone not booting, I am not able to do this.
Can anyone help please?
Hi there,
It seems that you already found the best place on XDA to post your question.
Please continue your journey there.
https://forum.xda-developers.com/yu-yunique/help/phone-booting-oem-lock-t3544308
This section is more to help new users with their problem .
Good luck!
Hello everyone,
first thank you all for this great forum! I solved many problems with your help, but now I have the first time a problem I must create a new thread.
I have a Moto Z which won't start any more. It boots to the Motorola Logo and does nothing. I can enter the fastboot menu, but can not flash anything because it was all original (Phone of my dad).
Now I tried to unlock the bootloader to flash twrp and lineageOS but it is not possible to unlock the bootloader.
I always get the info, Check 'Allow OEM Unlock' in Android Settings > Developer
Now the question is: Is there any way to "fix" this problem?