Product: Glo
Firmware: 2.8.1
Since firmware update, I have experienced intermittent faulty light switch operation. It would turn the light off, but not on. For this, I had to go into brightness setting and select another percentage. This would turn the light on at the new percentage brightness (which I could then change back to the required value). This bug did not show itself immediately after upgrade, but after an hour or so of operation. Using the Glo after several hours in sleep I found that the problem had resolved itself, however after a brief sleep (initiated via power switch) the problem has returned.
CatherineStewart has also experienced this bug - #43 here:
https://www.mobileread.com/forums/sho....php?p=2575555