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In case you can't boot into Recovery mode, there could still be a chance of recovering the Android installation if you can boot into TWRP. The procedure here is a bit more complicated:
* As in the previous case, you will need to prepare an SD card following these instructions ([[Cosmo Android Firmware Manual Installation]]) Make * In this case, please '''make sure you use version v23.'''* After that, download [https://support.planetcom.co.uk/download/Cosmo_Installer_V23_TWRP.sh this file ] and place it into the SD card under the '''cosmo-customos-installer''' folder
* Put the SD card into your Cosmo Communicator and boot into TWRP. Your SD content should be available in folder /auto0-1.
* Tap on "Advanced" and then "Terminal" to open the terminal application
* Finally, type the following commands(using the on-screen keyboard):
<code>cd /auto0-1/cosmo-customos-installer</code>
This should restore your Andriod firmware on your Cosmo Communicator.
If you can't boot into either Recovery mode or TWRP then you will most likely have to send the device to us for repair.