Going back to previous firmware
I just left the new Coolreader sitting at a page in a book I was reading, and a few hours later I picked it up to find nothing would respond. A reset just caused it to beep 4 times. Removing the battery and replacing it had no effect.
At this point I had to assume it had flattened it's battery, so I plugged it into a usb port, and after a minute, it beeped and restarted. Just to test, I removed the usb power source, and it reported 'low battery' so that's definitely what happened.
So, looks like, amongst other things, Coolreader does indeed flatten batteries.
I am going to reload the previous firmware after it recharges.
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