| Pin | Pin Name |
Description |
| 1 | TX/D+ | USB pin 3 (Green) |
| 2 | RX/D- | USB pin 2 (White) |
| 3.4 | Det_USB | Join |
| 5.6 | GND | USB pin 4 (Black) |
| 7 | +5V | USB pin 1 (Red) |
Benq-Siemens EF81 cell phones pinout by GSMBoriss
| Pin | Pin Name |
Description |
| 1 | TX/D+ | USB pin 3 (Green) |
| 2 | RX/D- | USB pin 2 (White) |
| 3.4 | Det_USB | Join |
| 5.6 | GND | USB pin 4 (Black) |
| 7 | +5V | USB pin 1 (Red) |
Benq-Siemens EF81 cell phones pinout by GSMBoriss
