| Pin Position | Pin Name | Connection to Nokia 105 RM-908 | Voltage / Signal | |--------------|----------|--------------------------------|-------------------| | 1 (leftmost) | VBUS | +5V charging input via PMIC | 5V nominal | | 2 | D- | No direct connection. Connected to test points (TP-51) for flashing. | High-Z or ground via resistor | | 3 | D+ | Connected to ESD protection diode, then to CPU (UEM) for flashing mode. | 0V or 3.3V logic | | 4 | ID | – Connected to a 10kΩ pulldown resistor to GND, also to charger detection circuit. | ~0V when cable plugged. | | 5 (rightmost) | GND | System ground | 0V |
If your micro-USB port is physically broken or the solder pads are ripped off the board, you can make a "direct-to-battery" or "direct-to-test-point" cable. Nokia 105 Rm 908 Usb Pinout
For detailed visual guides on where to place jumpers, refer to technical resources like the Nokia 105 Charging and USB Pinout Video or schematic layouts on of the motherboard or help with a flashing error Codes for Nokia phones - Mobile Master | Pin Position | Pin Name | Connection
For , only three pins are necessary: