Nokia c3-01 keypad problem done

unit: c3-01

problem: keypad, hindi nagrerespond ibang keypad maliban sa 456 then pag pinindot mo naman sabay sabay silang lumalabas... common problem ng keypad crystal i.c.

action taken: change keypad flex (nandun na din yung sim terminal saka mmc terminal sa flex ) no luck.
change keypad i.c. no luck

solution: reheat h500/rapuyama sa schematic (combo i.c. para sa ating mga technician ) success




yung may problema pa



solution



finish product