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Old 02-02-2010, 01:31 AM   #12
infi
Member
infi began at the beginning.
 
Posts: 10
Karma: 10
Join Date: Jan 2010
Device: JetBook
Quote:
Originally Posted by gr8npwrfl View Post
I think several of us have narrowed down the hourglass of death problem on the jetbook.
Thanks for making this a separate post; I think it'll help centralize the information, and maybe ectaco can easily take a look. I agree, it does seem to be a caching issue.

Since this appears to be not isolated, but both intermittent and almost non-deterministic, here are my experiences:

* Firmware 0.34c (pre-installed on JB-5 li-ion ordered 12/28/2009)
* Maximum 2 directories deep on SDHC 4Gb card (also tried with 512MB SD card with same results)

- Ejecting and changing any file on the card while the device is on, whether it be the book I was reading (for e.g. reformatting) or another in an entirely different directory, will result in a previously opened book suddenly becoming unreadable, even with clearing the Recent Readings list. Hourglass of death. Once that happens, all other books also become unreadable.
- Have tried placing a plaintext file with 1 line of text in the root directory, and under each of \Books\ and \Books\Last, First\. Hourglass of death on all of them.
- Reset never clears the hourglass of death once this state is entered.
- PDF files still load, sometimes. Other times, not. Neither plaintext nor any other format loading is the usual case.

The *only* way I have found to clear it once this happens is to Reset the device, leave it off for several hours, and then plug it into the computer using the USB cable, while on, until it appears as an external disk, then eject it and load the \plaintext.txt file for viewing, which comes up slowly the first time in about 30 seconds, and thereafter, all book formats work quickly like normal.

This is clearly a ridiculous set of steps, and I'm at risk of embarrassment for cargo-culting, but having gone through it several times now and trying different steps, if I exclude any one of the above including leaving the device alone, it simply hangs.

I seem to have the worst of it, as when it's in this state, it's not usable for hours at a time. Thankfully, right now I have a ton of books on it, enough to keep me going for quite a while, so it's not a major issue, but I really hope Ectaco looks at it. I'm willing to stick with it, because it is a great reader, aside from the whole "not being able to read books for several hours" thing :-)

Some other collected information on this problem from other threads:
https://www.mobileread.com/forums/sho...ight=hourglass
https://www.mobileread.com/forums/sho...ight=hourglass
https://www.mobileread.com/forums/sho...ight=hourglass
https://www.mobileread.com/forums/sho...ight=hourglass
https://www.mobileread.com/forums/sho...ight=hourglass
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