Microsoft Lumia 650 User Manual

Hi srinivas. This may depend on what you were doing when phone heats up and drain fast. Keep in mind that watching videos and playing games drain the battery fast.

Hi Brian,

If your phone is factory unlocked, meaning not locked to any mobile companies in the UK, then it will work. A quad-band unlocked GSM phone will be compatible with most GSM networks worldwide."

You have 1 year of warranty starting the day you bought the phone, so yes you still have warranty. It is best to contact the store where you bought it to know how to properly claim warranty service.

Did you currently change the password of your email? Cause you need to do it on your phone too.

Sorry but warranty does not cover that. You will have to pay for the repair.