apple iphone 4 16 GB ***plz read*** +

Selling an iphone 4 16 GB locked on t-mobile and its in excellent condition like new(plz luk at the pics) this phone shows no service and most of the time keep searching networks but cant find any networks, apart from that everything else is woking fine , physical condition is great n shud be rated as 9 on 10, no marks on the screen or back cover .... this phone is not barred or anything like that, i bought it from a local guy n was workin fine untill microphone stopped working n i tried to fix it on my own wathing a youtube tutorial but unfortunately i couldnt fix it as im not a professional on hardware, i must have done something wrong while re-assembling it n thats y phone lost its network reception ...may be its an eazy fix for someone who knows how to fix it... anyways this phone cums with a white protective rubber case only ,no other accessories accept cash on collection only , thanks for looking