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I bought my Samsung I600V handset yesterday. As people discussed before, my phone always jumps back to the main menu without reason. It's the phone's problem or the sim card problem? Any solution can be provided for this issue? Thanks

which SIM are u using? I heard there's a problem if you using 3HK SIM.

Yes, I am using 3G sim card. Do you think the problem can be solved by replacing another sim card in 3G?

vt2222 meant 3HK sim card not 3G sim card.....
u got the wrong idea my friend.

_________________
*Moto Xoom*
*Dell Streak*

手上有:
Milestone
HTC G1
SH-01A
920SC
910SH
V904SH
V903SH
V802SH
GX22

To clarify, I am using "3G" sim card from Hutchison Hong Kong.

Just got the sim card changed in 3 shop today. It is a newer version supporting jockey club function. The problem of jumping back to main menu during operation seems solved. Thanks for all the kindly advices. Cheers.