Question: how to check if you have unlocked bootloader?
Answer: Unlock your Android phone.
Open the Phone app or the Dialer.
Enter the code: *#*#7378423*#*#
This should automatically open a new window.
Tap the Service info.
Open Configuration.
You should see one of the two messages: – Bootloader Unlocked Allowed – Yes. – Bootloader Unlocked – Yes.