Yesterday, while reading a pdf article on the PE, the reader app got some difficulties and strange behaviour. (The file was a full mix of pictures and text). the reader app became slow, and some time did not reflow the text (which made it very hard to read on a PE), and eventually froze.

I used the reset hole on the PE , and ... O joy ! After the reboot, all my personal settings were gone ! ( icons on the desktop, gmail accounts ) however the downloadded apps and library files were still here.
Also very funny, the PE started to play some funny ringtones after booting, which was quite disturbing when you don't want to attract the attention around you...

Anyway, this was the opportunity for me to make a library backup, and also a downgrade to Dingo - Re-upgrade to Ermine. I wanted to see wether it will get rid of the old dingo email app.

Qwill.
So, be aware that the reset button seems to do a pretty rough reset !