https://support.planetcom.co.uk/index.php/Rooted_Android_For_Cosmo
https://support.planetcom.co.uk/index.php/Cosmo_Android_Firmware_Manual_Installation
刷機步驟如下：
1. 下載http://support.planetcom.co.uk/download/rooted_android_v25.zip
2. 解壓縮到MicroSD根目錄，將此MicroSD插入到Cosmo Communicator
3. 按住ESC + VolumeUp，開啟電源後，放開ESC(VolumeUp持續按住)，VolumeUp位置如下
4. 出現如下畫面後，放開VolumeUp
5. 再按一次ESC + VolumeUp就可以出線如下畫面
6. 選擇Change the partition table of your COSMO
7. 選擇Yes
8. 選擇Reserve most of the storage for Android (allow TWRP and cosmo_android_rooted Android)
9. 選擇Install custom OS on your COSMO
10. 選擇Install Rooted Android for Firmware v25
11. 選擇EMPTY_NORMAL_BOOT_3
12. 選擇Root system now
13. 選擇[3] ROOTED_ANDROID boot
