Iphone has no service

[Kevin123432]

I recently swapped out my volume, power, headphone jack, and mute button flex cable because the old one was going bad. I put everything back and put my sim card back in the Iphone and now it doesnt give me any service. Before I swapped cables everything worked perfectly so I have a feeling I screwed up when it comes to the swapping. Any help is appreciated

 

[Bula]

Take it apart again... make sure all connections are good...try swapping back the old parts... locate the antenna and make sure it's connected..?

 

[Kevin123432]

Yea, I though i may have messed something up with the inside of the phone. But Im not sure where the antenna is, what does it look like?