Apple iphone 4 32 GB not signal coming .

hi I bought this phone from gumtree three month ago it was working fine and work with 02 network but now its still working but i cant call anyone but mobile sim internat still working i spend 350 for this phone anyway ......give me a good offer email me and keep ur phone number and i will call u back thanks Hi i have both phones going together. Both come with chargers and are in mint condition. PLEASE do not contact if your not seriously interested. thanks. I can meet anytime today within areas waterloo, vauxhall, clapham, earsfield or wimbledon .let me know. thanks BRAND NEW JUST OPEN THE BOX TO CHECK EVERY THING ON ORANGE AND T MOBILE BUT CAN BE UNLOKED FOR A TENER FOR MORE INFO PLEASE CALL ON 07730766483 Thanks for looking at my ad. I have a number of iPhone 4 cases for sale, different colours. This ad is for the Hot Pink ones pictured. I have a few available I supply each case with a FREE screen protector as well and postage and packaging is included in the price which will be sent by Royal Mail Thanks for looking. GENERAL 2G Network GSM 850 / 900 / 1800 / 1900 3G Network HSDPA 850 / 1900 / 2100 HSDPA 900 / 1700 / 2100 Anounced 2010, August Status Available. Released 2010, August BODY Dimensions 109 x 60 x 13.9 mm Weight 104 g Keyboard QWERTY DISPLAY Type TFT, 65K colors Size 320 x 240 pixels, 2.46 inches (~163 ppi pixel density) - Touch-sensitive optical trackpad SOUND Alert types Vibration; Polyphonic(32), MP3 ringtones Loudspeaker Yes 3.5mm jack Yes &#