xperia automatically locking????

[Strongy37]

Hi there,

           My name is justin and i have a sony xperia z ,,everytime i call someone my phone automatically locks when i get the engaged signal,,i have to unlock my phone,search who i just called,re dial and if still engaged it justs locks itself,,everytime,,,how do i stop it from automatically locking??-i have searched call,phone settings to no avail...any info will be very helpfull.thank you!!!!

[Johan]

Try using another SIM card but if this still happens you might want to try reinstalling the phone using SUS.

http://www.sonymobile.com/gb/tools/update-service/