my uk iphone 4 is:

Maxis, iOS 4.1 (8B117), Model MC605B, Modern Firmware 02.10.04

at first few weeks everything fine ... but last whole month the iphone 4 is NO SERVICE .... not to say intermittent no service ... it can be like 10 minits no service ... then got back Maxis 3G signal with normal full bar .... then will drop back to no service

and sometime it will pop-up a push msg said "restore needed", then i restored it then problem still the same

JB i also tested, still the same problem

any uk iphone 4 kaki having this problem?