How to tell if used Sony phone has unlockable bootloader (always been sim-free)
asked 2020-07-08 12:01:38 +0200
This post is a wiki. Anyone with karma >75 is welcome to improve it.
I'm looking to buy a refurbished Sony Xperia 10, and as far as I know, you can't unlock the bootloader if the phone has been sim-locked at any time - i.e. If the refurbisher bought a sim-locked phone and unlocked it, Sailfish can't be installed because the bootloader won't unlock. Now I read somwhere months ago that you can enter a character combo in some interface in settings (possibly even need to enable developer mode first) and the output will tell you whether the bootloader can be unlocked or not. I've been searching for a while now for that key combination can't find it. Somebody help me out (don't judge if you find it quick&easy, my search fu is just bad)?
From Sony Open Devices
Check if the bootloader can be unlocked on your device It is only possible to unlock the bootloader for certain releases. To check if it is possible to unlock the bootloader of your device, follow these steps:
In your device, open the dialer and enter ##7378423## to access the service menu. Tap Service info > Configuration > Rooting Status. If Bootloader unlock allowed says Yes, then you can continue with the next step. If it says No, or if the status is missing, your device cannot be unlocked.
s_mario ( 2020-07-08 12:10:27 +0200 )editOn my Xperia X, when I dial this number, it first says "executing USSD-Code", then I get an error: "Connection problem or invalid MMI-Code". The connection is fine, I tried a number of times. Is the code different for each device?
bennypr0fane ( 2020-07-08 13:09:19 +0200 )editThis works only on Android, not on SFOS
Dylan Van Assche ( 2020-07-08 13:21:37 +0200 )edit@bennypr0fane Yes, sorry, I didn't notice the '*' that disappeared during copy & paste.
s_mario ( 2020-07-08 14:15:07 +0200 )edit