My iPhone 5s won't connect to cellular data and so far every thing I've done to try to fix it didnt work, what can I do?

[iMore Question]

my iphone 5s wont connect to cellular data and so far everthing ive done to try to fix it didnt work

where my carrier is supposed to be all it says is "searching"

 

[Peligro911]

Re: my iphone 5s wont connect to cellular data and so far everthing ive done to try to fix it didnt

where my carrier is supposed to be all it says is "searching"

what service do you have ?
if you are trying to use a different sim card than what carrier the phone came from that is why.
your phone could not be unlocked