Locate the RM-908 test points on the PCB. Apply a tiny drop of soldering flux to the copper pads. Lightly touch each pad with your soldering iron to leave a fresh, thin layer of solder on them. Step 3: Solder the Jumper Wires
The Nokia 105 RM 908 uses a standard micro-USB connector for connectivity. The USB pinout for the device is as follows:
The Ultimate Nokia 105 (RM-908) USB Pinout & Hardware Repair Guide
Before diving into the USB pinout, it's essential to understand the Nokia 105 (RM 908) device itself. Released in 2015, the Nokia 105 is a compact, lightweight phone that runs on the Series 30 operating system. It features a 1.4-inch color display, 4MB of internal storage, and a 800mAh battery that provides up to 14 hours of talk time. The device supports basic functions like calling, texting, and storing contacts.
You will need:
The USB pinout is a crucial aspect of connecting the Nokia 105 RM 908 to a computer. By understanding the pinout, users can establish a communication link between the device and the computer, enabling various tasks such as:
To utilize the USB pinout, the following tools are required:
Turn off power, switch the multimeter to Diode Mode, place the Red probe on GND, and the Black probe on Pin 1 . You should see a reading between 400mV and 700mV . A reading of 0.00 indicates a direct short circuit in the charging IC or protection zener diode. A reading of 1 or OL indicates an open loop/broken trace.
Phone does not show any charging indication when plugged in. Nokia 105 Rm 908 Usb Pinout
When connecting the phone to a flashing box (like Infinity-Box or Advance Turbo Flasher) using a modified USB cable, follow this pin configuration: Battery Positive (+) Pin 2 (TX): Data Transmit Pin 3 (RX): Data Receive Pin 4 (MBUS): Combined data line Pin 5 (GND): Ground / Battery Negative (-) Draft Post: Nokia 105 (RM-908) Flashing & USB Pinout
| | Charging | Data Transfer | Flashing / Repair | | :--- | :--- | :--- | :--- | | Capability | ✅ Standard Micro-USB | ❌ Not Supported | ✅ Requires FBUS | | Purpose | Charge the battery | Not applicable | Advanced operations | | Connection | Standard USB-A to Micro-USB cable | Not applicable | Specialized FBUS cable | | Required Hardware | Any standard USB charger | Not applicable | FBUS cable + Flashing box |
Yes, identical. The dual-SIM variant uses the same PCB layout and USB pinout.
I also need to gather information about the USB port pinout. Even if it's charging-only, I can explain the standard micro-USB pinout and which pins are likely connected. I'll search for "micro-USB pinout charging only".'ll open result 1. provides a good overview of the micro-USB pinout. I can use this information to explain the standard pinout, and then explain how the Nokia 105 RM-908 might only use VBUS and GND. Locate the RM-908 test points on the PCB
Before diving into the pinout, let's briefly review the device:
🛠️ Service Tip: Nokia 105 (RM-908) USB & FBUS Pinout for Flashing
| Aspect | Detail | |--------|--------| | Data transfer | No mass storage mode; only low-level flashing | | Charge via USB | Possible if you connect 5V to DC jack or to TP3+TP4 (not recommended) | | Cable availability | Pre-made "Nokia USB cable for RM-908" does exist — DIY only | | Risk | Soldering to test points can short and damage phone |