Share your experience!
Do you want to do it by yourself? You could let a sony service deal with it.
I want to know that I could i change the battery. I have to buy a New phone? When Battery backup is down
Yes, the battery can be changed. You need not buy a new phone.
You can use a power bank as temporary backup till your battery is changed.
Am I correct, Sony service should change the battery for free if it dies before the two years guarantee is over?