How to tell if boot loader is locked. Not at home to check with pc command and not ready to void warranty lol. Sorry for such a dumb question but couldn't find it.
your bootloader comes locked by default. to unlock it you need to issue a command from your PC while the phone is in fastboot mode.
Additionally you can tell if the phones bootloader is unlocked if the Splash logo (the one not animated) has an unlocked padlock icon on it.
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Whenever I try to unlock the bootloader of my Nexus 7. I will get to the screen that asks do I really want to unlock, I select yes. At the top of the bootloader screen it just sits and says "Unlocking now...." from there It will not reboot into the bootloader and whenever I do get it powered down and back into the bootloader it is still locked. I have also tried fastboot and various toolkits to automatically unlock and flash back to factory.
In the end I am trying to get in back to original state. I have fastboot.exe and the image file. At the moment trying to boot the device it will not get past the first "Google" startup screen. Any help would be appreciated. I am fairly new at this and have been spending hours of time trying to get my Nexus 7 to work again.
Solved: What to check if your unlocked bootloader became "permanently locked" again.
Hi,
My bootloader was suddenly locked again after
I had an unlocked single sim 6553, running E6533_32.1.A.1.185_R5C
The phone had survived several reboots and behaved well as a rooted phone.
As the phone was intended for my wife, I then did a factory reset and followed the wizard to copy her settings from her old phone and set it up,
I wanted to try out a battery saving app "2 Battery" with root access, but found that super-su wasn't there any more (assumed removed during factory reset).
Powered off phone at 30% battery intending to reboot into TWRP.
Phone would only boot into flash mode. I tried all possible button combinations and also tried fully charging. Phone was completely stuck.
As flash mode was allowed, I used FlashTool to re-flash all of E6533_32.1.A.1.185_R5C, using same image as before
Tried reflashing the patched kernel (as above) using fastboot, but got
"downloading 'boot.img'...
OKAY [ 0.523s]
booting...
FAILED (status read failed (No such device))"
Looking at the service menu security setting screen, I saw that the BL remote status was "Locked" with Allow unlock = "No"
I tried loading different roms, without wiping, all with same result and was about to wipe the phone...
Then I read in a BL unlock thread that you can't unlock the BL if "Find My Xperia" is ON!
So I turned it OFF and Hey Presto!
Status is now unlocked again!
If anyone else has similar problems, I advise to check this setting first. I could save you a lot of time and trouble!!
Only with "bootloader unlock allowed" before, mine is "allow : no" and still no even deactive my xperia... , can't root
Lavievn said:
Only with "bootloader unlock allowed" before, mine is "allow : no" and still no even deactive my xperia... , can't root
Click to expand...
Click to collapse
Me to. Any method to root with locked bootloader? Or unlock unlock it
popa.vasile.93 said:
Me to. Any method to root with locked bootloader? Or unlock unlock it
Click to expand...
Click to collapse
Try switching find my xperia off
Sorry bad english. I have a Motorola X Style XT1572 Brazil, I rooted it once and now I am back to stock rom and it always go to bootloader screen and I dont know how to get off it.
Plus it had update to software but when it tried to update it goes to 12% and reboot to bootloader, back to 0% again and repeating about 5x and got a error that cannot update. I downloaded here the 6.0 marshmallow Latin America DS stock rom, also have the warning back everytime of unlocked bootloader.
Thx for attention and helping =)
Run "fastboot oem fb_mode_clear" using Command Prompt (Windows) or Terminal (Linux/OS X) then reboot the phone.
Spasticdroid said:
Run "fastboot oem fb_mode_clear" using Command Prompt (Windows) or Terminal (Linux/OS X) then reboot the phone.
Click to expand...
Click to collapse
I will try that. That will remove the bootloader screen right?
How do I remove the warning of unlocked bootloader too?
Thx for the attention, =)
2006goto said:
I will try that. That will remove the bootloader screen right?
How do I remove the warning of unlocked bootloader too?
Thx for the attention, =)
Click to expand...
Click to collapse
fastboot oem fb_mode_clear takes the bootloader out of fastboot flashing mode, turning it on is the first step in flashing a stock ROM, but sometimes it seems to just happen... This will cause the bootloader NOT to pop-up on reboot/startup.
The bootloader unlocked screen will ALWAYS be there, forever, including the delay and vibration... You can hide it with a custom logo screen or the stock, patched logo image (look around, it's posted here)
Note you will never be able to hide the fact the bootloader was unlocked, if anyone who knows anything just starts the bootloader it will show a Status of 2, meaning relocked. That is NOT possible to be changed or hidden, and it cannot go back to a 0 (locked). Fastboot getvar all will always show the truth too.
acejavelin said:
fastboot oem fb_mode_clear takes the bootloader out of fastboot flashing mode, turning it on is the first step in flashing a stock ROM, but sometimes it seems to just happen... This will cause the bootloader NOT to pop-up on reboot/startup.
The bootloader unlocked screen will ALWAYS be there, forever, including the delay and vibration... You can hide it with a custom logo screen or the stock, patched logo image (look around, it's posted here)
Note you will never be able to hide the fact the bootloader was unlocked, if anyone who knows anything just starts the bootloader it will show a Status of 2, meaning relocked. That is NOT possible to be changed or hidden, and it cannot go back to a 0 (locked). Fastboot getvar all will always show the truth too.
Click to expand...
Click to collapse
Hum... But I know there is some way to hide, just to no show that horrible white screen at starting...
2006goto said:
Hum... But I know there is some way to hide, just to no show that horrible white screen at starting...
Click to expand...
Click to collapse
Read my post again... Flash the patched logo.
The unlock screen and status are still there, just hidden.
Is there a way to lock the bootloader for warranty purposes?
IIRC, there is a way to lock the bootloader, but it doesn't reset the flag in the bootloader that says it's been unlocked. They'd know even if you did.
So.
P9 Lite VNS-L23
FRP and Phone shows as locked on the bootloader screen.
Three button recovery doesn't work, just vibrates twice and then shows the huawei logo and sticks there.
Bootloader is locked and oem unlocking wasn't enabled prior to the attempted update which led to the brick in the first place.
I have all the necessary unlock codes and information but i can't get this phone to boot for anything.
Battery shows up as 1% and the led flashes three times before cutting off when unplugged but runs when connected to an outlet
Any help or advice would be greatly appreciated.
Keon24 said:
So.
P9 Lite VNS-L23
FRP and Phone shows as locked on the bootloader screen.
Three button recovery doesn't work, just vibrates twice and then shows the huawei logo and sticks there.
Bootloader is locked and oem unlocking wasn't enabled prior to the attempted update which led to the brick in the first place.
I have all the necessary unlock codes and information but i can't get this phone to boot for anything.
Battery shows up as 1% and the led flashes three times before cutting off when unplugged but runs when connected to an outlet
Any help or advice would be greatly appreciated.
Click to expand...
Click to collapse
Can you/did you retry unlocking bootloader again (fastboot or via SRKtool - easy way)? Or relock and then unlock again?
Then you could fastboot boot <recovery_twrp.img> and install stock ROM after that.
360_Swapper said:
Can you/did you retry unlocking bootloader again (fastboot or via SRKtool - easy way)? Or relock and then unlock again?
Then you could fastboot boot <recovery_twrp.img> and install stock ROM after that.
Click to expand...
Click to collapse
I did try but developer options was never enabled and oem unlocking wasn't either so no fastboot commands will go through hence the predicament i'm in right now