I'm using a smartphone, but it doesn't work and the 3G antenna doesn't show up, so what should I check?

smartphone not-serviceable 3g antenna

I'm using a smartphone, but it doesn't work and the 3G antenna doesn't show up, so what should I check?

1015 2016-07-25 Gentleman

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A. 1

I think there's something wrong with the USIM chip.

Gentleman 9 years ago 0

A. 2

Try another USIM chip.
Or it could be broken because the connection part of the USIM chip is weak, so we have to leave it as.

Gentleman 9 years ago 0

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