Error message

Deprecated function: The behavior of unparenthesized expressions containing both '.' and '+'/'-' will change in PHP 8: '+'/'-' will take a higher precedence in include_once() (line 1442 of includes/bootstrap.inc).

Reset my Sony Ericsson Xperia Ray

Reset my Sony Ericsson Xperia Ray (ST18i)

Step 1:
Make a backup. Be aware you may lose data in the process of resetting your mobile device.

Step 2:
Press menu, select settings, select privacy, select factory reset, select reset phone and then select erase everything.

Huawei

Nokia