W700i Weird Issue - Pls Help !!!!

[Boki92]

Hi I'm using a SE W700i recently a fews months ago my phone has started acting very weird, it restarts its self but just before it does that the screen goes completely white then black stays like that for around 10-20 seconds and it keeps doing that over and over again, sometimes it just works fine but on the other days it keeps repeating the issue, I'm very tensed and worried I don't want to sell or change my phone because I love my handset a lot, has anyone of you faced an issue like this or am I the only one, is there anything that I can do to fix this issue.

Thank you

i've had similar problems, try starting the phone whitout the sim and after that put sim card back in, it solved my problem