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.
Related
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.
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
all it is ive just gone into developer options after unlocking the bootloader and the setting oem unlocking is turned off, now obvs my bootloader is already unlocked so does this oem unlock need turning on or leaving alone ?
thanks
You are done.
Thanks mate
I have mistakenly run Google Remote Erase https://android.com/find on my phone. The phone has done a complete factory reset. Now it boots to initial blue setup screen "Hi there...English...Start", but the touchscreen is not responsive. There is a lock icon in the left upper corner. So I assume it is FRP (Factory Reset Protection) by Google.
I repeated Hard Reset and even managed to boot to Safe mode (still the same initial blue setup screen) as per https://www.verizonwireless.com/support/knowledge-base-217744/
but still the touchscreen is not responsive.
The phone is from Amazon.com, I am in Canada. The bootloader was unlocked and then re-locked. So BL is now locked.
The short story long: -) I have had two identical G6Plus handsets. One was stolen 3 days ago. After that I changed my Google password and mistakenly run Google Remote Erase on the one which was NOT stolen
Will FW flashing remove FRP? To flash FW, I will need to unlock BL. Is it possible while FRP?
FRP remains activated even if you flash a new FW. It's possible to flash a FW while bootloader is locked. But it must be exactly the same build which is currently installed on the phone. Have a look on this page: https://mirrors.lolinet.com/firmware/moto/evert/official/
You'll find different folders for each software channel. To find your software channel you can boot into bootloader (power on while press+hold vol-) Watch out for XT1926-3 for example. The last digit (e.g. -3) defines the software channel.
rybshik said:
I have mistakenly run Google Remote Erase https://android.com/find on my phone. The phone has done a complete factory reset. Now it boots to initial blue setup screen "Hi there...English...Start", but the touchscreen is not responsive. There is a lock icon in the left upper corner. So I assume it is FRP (Factory Reset Protection) by Google.
I repeated Hard Reset and even managed to boot to Safe mode (still the same initial blue setup screen) as per https://www.verizonwireless.com/support/knowledge-base-217744/
but still the touchscreen is not responsive.
The phone is from Amazon.com, I am in Canada. The bootloader was unlocked and then re-locked. So BL is now locked.
The short story long: -) I have had two identical G6Plus handsets. One was stolen 3 days ago. After that I changed my Google password and mistakenly run Google Remote Erase on the one which was NOT stolen
Will FW flashing remove FRP? To flash FW, I will need to unlock BL. Is it possible while FRP?
Click to expand...
Click to collapse
Try LMSA'S Flash rescue option
https://forum.xda-developers.com/general/general/update-moto-lenovo-moto-smart-assistant-t3951714
Sent from my ali using XDA Labs
sd_shadow said:
Try LMSA'S Flash rescue option
https://forum.xda-developers.com/general/general/update-moto-lenovo-moto-smart-assistant-t3951714
Click to expand...
Click to collapse
I have removed FRP by connecting external Keyboard/mouth, then unlocked BL and flashed new FW. It works normal with external Keyboard/mouth now, but the touch screen is still not responsive. So it probably is just a hardware problem having nothing to do with FPR
Hello everyone, I am in need of some help, I have this old Essential Phone, I gave it to my son and he can't remember the unlock pattern, the bootloader is unlocked but usb debugging was not enabled after factory resetting it before handing it to him, booting with volume down takes me to a bootloader menu, but there's no option to factory restore, i can't wipe it using google, it says device not found...., Is there any way to unlock this even if everything gets lost?
adb is not listing any device, fastboot does show the serial number but refuses to flash anything.
Seeing as some threads get locked because of possible theft I can provide purchase receipts if needed.
Boot into recovery and just hit factory reset