Edit: I didn't read carefully...
The hardware of the MS700 and E700 models are identical:...MS700 non WinCE...
Spoiler: Tech Specs
If you are unable to obtain an original backup, you can install WinCE.
In my opinion, it will really be the best to update in the future ...
Spoiler: From linux to WindowCE
Once you have WindowsCE, you can do this for example:
Spoiler: Info
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