MobileRead Forums - View Single Post - Firmware Update Instructions and the latest Firmware Versions

diskjoncter · 11-11-2010, 07:55 AM

Hi Guys,

I'm triyng to downgrade from the V0.35m jetBook firmware to a previous version, I followed the procedure given by Ken but something doesn't work with my JB, I cannot even NOR flashing the device (thru the diagnostic menu) but there's something wrong with the NAND Flash md5sum check (memory check): mtd3 is ok but mtd4 is not.

So I would like to know if one of you did try to downgrade its JB from 0.35m just to know if it is even possible to do so.

mtd4 seems to be a file but how this one is always wrong? I installed the last version again and again with different SD cards, programming systems, and it always fail.

I already posted a thread in the Ectaco forum with this problem: http://www.ectaco.com/posts/list/53638.page

Maybe than one of you could verify this on its jetBook, not the lite.

Any help appreciated.

Regards,
Chris

11-11-2010, 07:55 AM	#98
diskjoncter Junior Member Posts: 3 Karma: 10 Join Date: Nov 2010 Device: jetBook	Hi Guys, I'm triyng to downgrade from the V0.35m jetBook firmware to a previous version, I followed the procedure given by Ken but something doesn't work with my JB, I cannot even NOR flashing the device (thru the diagnostic menu) but there's something wrong with the NAND Flash md5sum check (memory check): mtd3 is ok but mtd4 is not. So I would like to know if one of you did try to downgrade its JB from 0.35m just to know if it is even possible to do so. mtd4 seems to be a file but how this one is always wrong? I installed the last version again and again with different SD cards, programming systems, and it always fail. I already posted a thread in the Ectaco forum with this problem: http://www.ectaco.com/posts/list/53638.page Maybe than one of you could verify this on its jetBook, not the lite. Any help appreciated. Regards, Chris Last edited by diskjoncter; 11-11-2010 at 07:57 AM.