I had the same things . So now ur batt is connecting to ur anthena of network . When ur batt is broken ur anthena also broken . So this is PSU prob ( POWER SUPPLY UNITS ) now ur PSU is bend . When u charge ur phone PSU will give 1 power to turn on the phone . I dropped my phone on the floor it will die . So u need to repair ur PSU prob and also change ur batt for the good result!