How to reset or factory restore Lenovo K860 device?
Resetting or factory restoring a Lenovo K860 device can restore the device to its original state and resolve various software-related issues. However, before proceeding further, make sure to backup all important data, as the process may erase all data on the device. Here are the most common and recommended ways to reset or factory restore a Lenovo K860 device:
Method 1: Using FONEMAP Flusher tool
1. Download and install FONEMAP Flusher tool from the official Lenovo website.
2. Connect the Lenovo K860 device to your computer using a USB cable.
3. Run the FONEMAP Flusher tool and select "Reset Phone Data" option.
4. Follow the on-screen instructions and wait for the process to complete.
5. Once the process is complete, disconnect the device from the computer and turn off the device.
Method 2: Using Automatic System Recovery (ASR)
1. Press and hold the Volume Up button and the Power button simultaneously for at least 20 seconds until the Lenovo logo appears on the screen.
2. Release the buttons and wait for the recovery options to appear.
3. Select "ASR" option and press the Volume Up button to confirm.
4. Follow the on-screen instructions and wait for the process to complete.
5. Once the process is complete, select "Reboot device" and press the Power button to restart the device.
Method 3: Using sketch using bootloader
1. Connect the Lenovo K860 device to your computer using a USB cable.
2. Open a command prompt and enter the following command to check if the device is detected by your computer: "adb devices"
3. Open a new command prompt and enter the following command to check if the bootloader is enabled: "fastboot reboot bootloader"
4. Once the bootloader is enabled, enter the following command to check the firmware version: "fastboot get-serial-number | awk 'NR==1 {print "Firmware Version: " }' | awk 'NR==3 {print}'"
5. Choose the appropriate firmware version and enter the following command to flash the bootloader: "fastboot update firmware.img"
6. Reboot the device and enter recovery mode as described in Method 2.
7. Follow the on-screen instructions to reset the device to its factory state.
It's important to note that using these methods may void the warranty of the device, so use them at your own risk.