Water damage iphone 5c no sim card installed error solution


I HAVE IPHONE 5C WATER DAMGAGE EVERY THING WORKING FINE WHEN I PUT SIM CARD, IT SHOWS NO SIM CARD ERROR ?

PLEASE SOME ONE CAN HELP WHAT TO DO?

i CLEAN SIM JACKET AFTER THAT IT START SEARCHING FOR LONG TIME
. THAN RESET NETWORK SETTING IT IT AGAIN SHOWS NO SIM CARD INSTALLED ERROR?

PLEASE LET ME KNOW CAN i HEAT SIM CARD READ JACKET OR THERE ARE SOME IC ON BACK SIDE THAT CAN BE HARFUL AFTER HEAT….

IF I CAN HEAT SIM CARD READER PLEASE LET ME WHAT TEMPRATURE IS AIR SHOULD BE BEST?
AN OTHER THINK PHONE IS ALSO ASKING FOR UPDATE 9.2.1???
REGARDS