About 2 weeks back, I noticed the back cover of my S7 opening from the side. It was followed by my phone suddenly restarting. I contacted the samsung service centre and they said the battery may be swollen up causing the cover to open, and must be replaced. My mobile has restarted several times on its own since then. Sometimes it reaches just the screen where it says Samsung and then begins to restart again, several times before it completely switches on and I can use it. Can i change the battery from India even though k have bought the mobile from Saudi Arabia? What else could be the cause of my mobile restarting if not the battery? Also, during the restart process, a screen saying "no command" has come up too. And ive had to format my phone several times in order to switch it on until it starts the same problem again.