: Flashing firmware usually erases all user data , so back up important files first.
Using the wrong firmware is the most common cause of "bricking" a device. You must verify the specific hardware revision of your MB4. Check the "About Tablet" section in settings. Match the Build Number with the firmware file. : Flashing firmware usually erases all user data
For official technical support or to request specific firmware files, you can contact Microlab Chile via their official site. : Flashing firmware usually erases all user data