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I bought a logic board that was locked to a net work and jailbroken. I got it network unlocked and restored it.
It gets coverage in large towns but not anywhere else. I have checked connection no.7 and it is perfect also both gold prongs are touching the Bessel. The only thing I can see is on the back of the logic board, directly under the number 7 connector there should be a little gold round thing, and that is missing.
Any help would be greatly appreciated.