Unfroze Jetbook Lite

MikeB1972 · 06-29-2010, 04:56 AM

Well my JBL froze during reflash (15g) and would only boot to the Jetbook Lite Boot up screen.

So after a good bout of panic I went into research mode to see what I could do

The only usefull info I could find was to reboot the PC and hope the bios could detect the drive, so I decided to try that.

Not sure if it was a fluke or not, but I removed the batteries and SD card and plugged in the USB cable to my PC ready to reboot the PC to see if windows would do a "detect and repair". Anyway I got sidetracked and never got round to rebooting. After about half an hour the JBL loaded up.

Attemting to reflash the JBL again now - I know, sometimes I'm not very bright

It's alive, alive I tell you

clerky96 · 06-30-2010, 08:34 PM

Congrats on it coming back on for you. I was not so lucky. I tried every single suggestion I could find and "nothing". But Ectaco replaced it for me. Hope you don't have any more problems.

Ken Maltby · 06-30-2010, 10:13 PM

You could throw away your USB cable. Using the JBL's USB interface for
anything besides messing with the built-in user data memory, is a bad idea.

To be safe, you should use a blank SD chip formatted to FAT16, for updates.
(I have used FAT32 formatted SD chips for updating with no problems, but it
is easy enough to do a quick re-format to FAT16.) You should use FAT32 for
your ebook SD(s) though.

It is also very unlikely that you could not just reset and re-flash properly to
recover from a bad flash with any ARM based device. At the most you would
just remove the batteries and hold the reset, to thoroughly discharge the JBL
and then start over.

Luck;
Ken

06-29-2010, 04:56 AM	#1
MikeB1972 Gnu Posts: 1,222 Karma: 15625359 Join Date: Jul 2009 Location: UK Device: BeBook,JetBook Lite,PRS-300-350-505-650,+ran out of space to type	Unfroze Jetbook Lite Well my JBL froze during reflash (15g) and would only boot to the Jetbook Lite Boot up screen. So after a good bout of panic I went into research mode to see what I could do The only usefull info I could find was to reboot the PC and hope the bios could detect the drive, so I decided to try that. Not sure if it was a fluke or not, but I removed the batteries and SD card and plugged in the USB cable to my PC ready to reboot the PC to see if windows would do a "detect and repair". Anyway I got sidetracked and never got round to rebooting. After about half an hour the JBL loaded up. Attemting to reflash the JBL again now - I know, sometimes I'm not very bright It's alive, alive I tell you

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06-30-2010, 08:34 PM	#2
clerky96 Connoisseur Posts: 93 Karma: 14 Join Date: Jun 2009 Location: Illinois - USA Device: none	Congrats on it coming back on for you. I was not so lucky. I tried every single suggestion I could find and "nothing". But Ectaco replaced it for me. Hope you don't have any more problems.

06-30-2010, 10:13 PM	#3
Ken Maltby Wizard Posts: 4,465 Karma: 6900052 Join Date: Dec 2009 Location: The Heart of Texas Device: Boox Note2, AuraHD, PDA,	You could throw away your USB cable. Using the JBL's USB interface for anything besides messing with the built-in user data memory, is a bad idea. To be safe, you should use a blank SD chip formatted to FAT16, for updates. (I have used FAT32 formatted SD chips for updating with no problems, but it is easy enough to do a quick re-format to FAT16.) You should use FAT32 for your ebook SD(s) though. It is also very unlikely that you could not just reset and re-flash properly to recover from a bad flash with any ARM based device. At the most you would just remove the batteries and hold the reset, to thoroughly discharge the JBL and then start over. Luck; Ken

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