Nokia 105 Rm 908 Usb Pinout Direct

The Nokia 105 (Model RM-908) is a classic 2G feature phone originally released in 2013. Unlike modern iterations that use USB-C, this specific model features a Micro-USB port located at the top of the device for charging.  USB Pinout Overview 

The key to unlocking repair and diagnostic functions lies in understanding the pinout wiring of that micro-USB port. Nokia 105 Rm 908 Usb Pinout

1. Connect USB cable to PC (do not connect to phone yet).
2. Identify the GND and TST pad.
3. Short the TST pad to GND using tweezers or a wire.
4. Hold the short while connecting the micro-USB cable to the phone.
5. Release the short after 2 seconds.
6. The phone should now be detected by flashing software as "Nokia BB5" or "USB Vendor DFU."

Whether you are a mobile repair technician dealing with a broken port, or an enthusiast wanting to build a custom charging cable, understanding the +5V (VBUS), GND, D+, D- and the alternative test points (TP701-TP704) is 90% of the battle. The Nokia 105 (Model RM-908) is a classic

The Nokia 105 (RM 908) is a popular feature phone that was released in 2015. While it's a basic device, it still requires a USB connection for data transfer, charging, and other purposes. In this article, we'll provide the USB pinout for the Nokia 105 RM 908, which can be useful for developers, technicians, and enthusiasts. Connect USB cable to PC (do not connect to phone yet)

• Pin 1 (VBUS) → Test point near the charging IC.
• Pin 4 (ID) → Should show 10kΩ to GND (resistor present on board).
• Pin 5 (GND) → Ground plane.

• A cut micro-USB or standard USB cable (keep the USB-A end)
• Soldering iron, fine tip
• Multimeter

Warning: Do not reverse polarity. Connecting +5V to GND will destroy the power management IC instantly.

Tools needed:

• Fine-tip soldering iron (350°C max)
• Leaded solder flux
• Replacement micro-USB port (5-pin SMT type with two legs for mechanical support)
• Multimeter
• Thin gauge wire (30 AWG Kynar)