Nokia 105 Rm 908 Usb Pinout ~repack~ -
| Pin | Signal Name | Function | Connected to (on PCB) | Typical Voltage | |-----|-------------|----------|----------------------|------------------| | 1 | VBUS | +5V Charging Input | Charging IC / PMIC | 5.0V (max 6.0V) | | 2 | D- | USB Data Minus | RAP3 CPU (via series resistors) | 0–3.3V logic | | 3 | D+ | USB Data Plus | RAP3 CPU (via series resistors) | 0–3.3V logic | | 4 | ID | USB ID | Pulled to GND via 0Ω resistor (for OTG detect – not used) | GND | | 5 | GND | Ground | Main ground plane | 0V |
Plug a live USB cable into the newly soldered port. Measure the voltage at Pin 1 . It should read a stable 5.0V to 5.2V DC . If it reads lower, your USB cable or port contact is faulty.
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If your device is functional and you only need a standard reset, try these codes before attempting hardware-level pinout modifications: 12345 . Soft Reset (Factory Settings): *#7780# . Hard Reset (Full Data Wipe): *#7370# . Nokia 105 Rm 908 Usb Pinout
Looking at the micro-USB port on the :
Before plugging the USB cable into your computer, install the . Without these drivers, Windows will register the device as an "Unknown USB Device," and your flashing tools will fail to communicate with the phone. 2. Choosing the Right Service Tool
Without specific software and bootloader activation, the USB lines remain inactive for data. | Pin | Signal Name | Function |
The story usually begins with a forgotten security code. Since the phone doesn't have a menu-based factory reset that works without the code, and no USB port to plug into a PC, the only way to bypass it is to go "old school":
If the phone displays "Not Charging," the fault is usually in the "BSI" (Battery System Indicator) line, which is the middle pin on the battery connector, or the resistor network near the USB port. Important Safety and Technical Notes
The Nokia 105 RM-908 utilizes a 5-pin micro-USB connector, which serves two main purposes: charging the phone and, in some cases, flashing the firmware, although this model generally uses a dedicated F-Bus interface for service. If it reads lower, your USB cable or port contact is faulty
:
The Nokia 105 RM‑908 is a robust feature phone that prioritises essential communication over data connectivity. Its micro‑USB port is designed for charging only, and all advanced interactions require the use of the FBUS engineering interface. Understanding this distinction is crucial for anyone attempting to repair, flash, or recover data from the device. Whether you are a hobbyist building your own FBUS cable or a repair technician replacing a faulty charging port, the pinout and techniques detailed here provide a solid foundation. By respecting the phone’s design limitations and leveraging its engineering interfaces, you can keep this classic handset running for years to come.
