Nokia 3310, 3315, 3330, 3350, 3390, 3410, 5510 cell phones internal

for data/flash cable only

4 pin Nokia cellphone special connector  at the mobile phone

Pin Number Pin Name Direction Description 1 GND ---   2 TX -->   3 MBUS <-->   4 RX <--   A Vbat   B is battery type Li ion 74.5kohm to ground. NiMh 35Kohm to ground. C BSI battery thermistor. 25K to 40K D Gnd   Source:www.pinouts.ru -->