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Cannot Switch from Android to Ubuntu

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Posted at 7/31/2017 18:27:53     
Hi the option to switch from Android (Rebbot/Shutdown) is missing, how can i add this or in this case switch to Ubuntu?
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Posted at 7/31/2017 19:37:58     
There is  a Single System Android.
u need to download Dual System Firmware from official website.
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Posted at 8/1/2017 09:17:45     
brupbacher Posted at 7/31/2017 22:36
btw, FYI i am using my first Firefly RK3399 to upgrade the second one, so you probably never tested  ...

http://wiki.t-firefly.com/index. ... lash_image/en#Linux
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Posted at 8/4/2017 05:49:03     
Last edited by brupbacher In 8/4/2017 14:18 Editor

ok! worked!, after several hours of tinkering ...
1) i did not use the proposed version but an earlier version from the previous (Linux_upgrade_tool 1.2 instead of 1.24)
2) download the ubuntu image from the download area
3) unpack and rename the image to update.img
4) move the update.img in to the Upgrade_Tool directory where the upgrade_tool executable is located (just next to it)
5) i did the sudo chmod root:root bot files (the executable as well as the img)
6) start the upgrade_tool (sudo ./upgrade_tool
7) you will see the cryptic comand line interface, if upgrade_tool detected the device, then type '1' (other options are rescan or quit)
8) if you typed '1' a list of commands appear
9) enter 'uf update.img' 10) wait until done.

- after that the device is tested upload starts this will take a while but the progress is displayed- the device will reboot after the firmware is updated.- the process itself is very stable and never bricked the device, (it interrupted it quiet a few times to test various images, an incompatible image will cast an error)
- use the command lf (low format) if you interrupted or decide to choose another firmware.

Be aware, the firefly RK3399 is not dualboot and there is no firmware that enables this. (how ever the one i got from the kikstarter was)
neverthe less this is a tiny flaw, the hardware is really cool!



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