Glo HD Power off when going to sleep (solved)

[freeeflyer]

Hello

TLDR; If your device powers off instead of going to sleep, try again with the power adapter connected. If it goes to sleep mode normaly, you may have a battery issue.

The story if you want to read:

A while ago I stumbled on this problem:
When I had finish my reading and I pushed the switch of my kobo glo hd, instead of going into sleep mode, the device just powered itself down.

I have tried everything:
- Factory reset
- New SD image
And more things I don't remember.
Nothing worked

I noticed that some times, it did go to sleep mode..
Two days ago I just found out: Sleep mode was working only when the power adapter was connected.

I changed the battery everything went back to normal.

Hope this helps.

Nicolas