, on my second S 3 ( 1st one died) and I've started to receive this error message recently ."The mobile network will be unavailable until you restart with a valid sim card " . ( MOdel SGH-I747M Version 4.1.1 ). i'm in Singapore using a Rogers Canada unlocked Samsung 3 . I've replaced the SIM 2 X changed the actual reader 1 X and the problem still exists. I've used the temporary fixes ie , sticking piece of paper in slot with sim for better connection , adding 2 layers of tape to back of sim( not recommend as it ruins the sim ) , giving the sim a rub with clean cloth , none of which worked. The SIM is seated perfectly I contacted Samsung directly and they gave me a run around saying i must have damaged the phone , ( its brand new) and since i`m out of Canada , they will not cover any internal defective issues with the phone claiming Samsung technicians will not be able to fix my model.
The issue seems to occur when there is a signal drop and for some reason the SIM is not detected .. ... anyone have any ideas... .. I can't use the phone for business since it is so unreliable and now use it as a $600.00 paper weight on my desk .
My previous S 3 worked perfectly in Singapore ,Thailand , Indonesia and Malaysia ..
The issue seems to occur when there is a signal drop and for some reason the SIM is not detected .. ... anyone have any ideas... .. I can't use the phone for business since it is so unreliable and now use it as a $600.00 paper weight on my desk .
My previous S 3 worked perfectly in Singapore ,Thailand , Indonesia and Malaysia ..
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