About network problem

[Android Central Question]

In my phone all sim cards are detect but not show network tower.give me best solution about this kinds of problems

 

[hallux]

Has it EVER worked? Do other phones in the same location pick up towers?

There are a couple possibilities. The phone does not support the network(s) the SIM cards are for (are the SIM cards from different carriers?), there actually IS a problem with the phone or the network just doesn't reach where you are.

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