To start the flashing process, just click the big '''Download''' button, connect your Gemini to your PC and restart the Gemini. Once booting, the flash tool will detect the unit and will start flashing the device with the selected firmware.
If instead you want to manually update your Gemini without loosing your data, you should select the '''Download Only '''option from the drop down menu. After that, make sure you select all the partition with the exception of the '''userdata''' partition, which contains your data. Your screen should look like this:
[[File:Screen_Shot_2018-06-21_at_11.12.29.png|800x597px|center|border]]
To start the flashing process, just click the big '''Download''' button, connect your Gemini to your PC and restart the Gemini. Once booting, the flash tool will detect the unit and will start flashing the device with the selected firmware.
Now, open the firmware folder from the firmware zip file you downloaded and select the scatter file. If you selected an Android firmware, then the scatter file will be called''' Gemini_Android.txt'''. If you selected an Android/Linux firmware, then the scatter file name will depend on the space you reserved for them, for example''' Gemini_x27_A26GB_L30GB_Multi_Boot.txt'''.The following screenshot shows a successfully completed flashing process:
Once you select the scatter file, the table should be populated as below:
[[File:flash2.png]]
Make sure all the partitions are found and are checked. If some partitions are not found (location tab is empty), double checked that you unzipped the Linux module in the firmware folder.
Finally, change the '''Download Only''' drop down menu to '''Firmware Upgrade''' and click on the '''Download''' button. When switching between a standard Android to a dual boot Android/Linux firmware, you must use the '''Firmware Upgrade '''mode because you need to format the device and change the partitions.
Connect your Gemini and restart it. As soon as the Gemini is rebooted, the flash tool will detect the device and it will update the OS with the selected firmware.
