Do a search for T1 Hard Reset. That should fix it. However, you will lose your books. If you're going away, I recommend you back up all books onto a micro-SD card that you slot into the T1 in the reader. That way a hard-reset, if you need to do it, will not zap all your books. They'll remain on the SD-card. But test the process first.
Personally I suspect T1s are a bit flaky, though there are many who will disagree.
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