How to reset or factory restore BenQ-Siemens EF81 device?
There are multiple methods to reset or factory restore a BenQ-Siemens EF81 device, but the most common and recommended ways are:
Method 1: Using the Hardware Reset Button
1. Turn off the device and unplug it from the power source.
2. Locate the hardware reset button on the back of the device. It is usually a small, recessed button with a label saying "Reset".
3. Using a small flat-head screwdriver or a paper clip, gently press and hold the reset button for at least 10 seconds.
4. Release the reset button and wait for the device to power on. It may take a few seconds for the device to fully reset and restart.
5. Verify that the device has been reset successfully by checking the firmware version or performing a factory reset.
Method 2: Using the Service Menu
1. Turn off the device and unplug it from the power source.
2. Connect the device to a computer using a USB cable.
3. Download the appropriate firmware for your device from the BenQ-Siemens website.
4. Open the firmware file using a software tool such as FlashMaster or BootEase.
5. Using the software tool, follow the on-screen instructions to enter the service menu.
6. Locate the "Factory Reset" or "EEPROM Reset" option and select it.
7. Wait for the device to reset and restart.
8. Once the device has restarted, verify that it has been reset successfully by checking the firmware version or performing a firmware update.
Method 3: Using the EF Teleslight Application
1. Turn off the device and unplug it from the power source.
2. Connect the device to a computer using a USB cable.
3. Download and install the EF Teleslight application from the BenQ-Siemens website.
4. Open the EF Teleslight application and connect your device.
5. Select "Flash Firmware" from the menu.
6. Select the firmware version for your device and start the firmware update process.
7. Wait for the device to reset and restart.
8. Once the device has restarted, verify that it has been reset successfully by checking the firmware version or performing a factory reset.
Overall, the most common and recommended methods for resetting or factory restoring a BenQ-Siemens EF81 device are using the hardware reset button, the service menu, or the EF Teleslight application. It is always recommended to back up any important data before resetting or factory restoring the device to prevent data loss.
