Factory Reset locked Device?

[kowy3]

Hello all

I wonder if someone could help me in a tricky situation.

My girlfriend got a Sony Xperia XZ1 from her brother, because he forgot the Device PIN. So the phone is with us currently but we can't unlock the phone because nobody knows the PIN code for the device (IT IS NOT SIMCARD LOCKED).

I tried to do a factory reset from the Recovery menu but it seems Sony doesn't have one by default. I tried to put the phone into fastboot mode so I might be able to flash a custom recovery, but when I press volume down + power button the phone turns on and shows a blank black screen only. So it doesn't seem to work either.

Could someone suggest me something that could help me get the phone unlocked or at least factory reset?
I would appreciate any help.
Thank you

 

[Shiro39]

I don't know if this would work or not but, how about trying the Repair feature on the Xperia Companion?
it would reinstall the firmware tho

if it a Global model, why not unlock the bootloader and flash TWRP? then you can factory reset the device from TWRP

 

[kowy3]

I don't know if this would work or not but, how about trying the Repair feature on the Xperia Companion?
it would reinstall the firmware tho

if it a Global model, why not unlock the bootloader and flash TWRP? then you can factory reset the device from TWRP

Hi, thanks for your reply.

As I can't unlock the device = can't get past the lock screen Xperia Companion won't work with the device locked.
I am not sure if it is a global model or not, I will have a look on how to unlock the bootloader on this phone, but I have a feeling it won't work either if I can't get into the phone right now.

 

[Shiro39]

As I can't unlock the device = can't get past the lock screen Xperia Companion won't work with the device locked.
I am not sure if it is a global model or not, I will have a look on how to unlock the bootloader on this phone, but I have a feeling it won't work either if I can't get into the phone right now.

sorry for not being helpful but I can't think of any other way other than reflashing it with tool like Flashtool

but in order to reflash the device with the proper rom, you need to know what version model first
and getting the version model could be tricky

I think there's a way once you figure out the device version

 

[SGH-i200]

I tried to do a factory reset from the Recovery menu but it seems Sony doesn't have one by default. I tried to put the phone into fastboot mode so I might be able to flash a custom recovery, but when I press volume down + power button the phone turns on and shows a blank black screen only. So it doesn't seem to work either.

You should do a factory reset by reflashing the firmware! You can download it via XperiFirm and flash it via NewFlasher. If you don't know the exact model number, check the SIM slot(s)! G8341 (single SIM) or G8342 (dual SIM) is what you should look for in XperiFirm.

 

[Marek8299]

There should be something like "repair device" option in Xperia Companion. Press the button and follow on-screen instructions.