I can't use the arrow keys and numeric keys 9 on the V3 keyboard. I went to the place where the mobile phone was repaired and asked someone that the line was broken. Tell them how to repair it.

Alas ... your mobile phone must be decoded ... because the password of V3 is locked by the manufacturer, and there is no other number to decode! !

As for the cable ... you must change it ... If you don't change it, there may be other faults after using it for a long time (such as not displaying ... the receiver is silent, etc.). )

There won't be only one mobile phone repairer, will there? You can try a few more ... bargain with them ... but at least it's about 60! ! The rest is just for you to think! ! I can only help you so much! !