Reflash K3 from scratch?

rapidblue · 11-01-2010, 08:32 AM

Hi guys,

Just out of interest, I was wondering if it's possible to wipe a Kindle 3 clean and then flash it from a clean state??

Thanx guys

Acorn · 11-01-2010, 01:29 PM

I'm pretty sure it's possible using the JTAG pins.

rapidblue · 11-01-2010, 01:48 PM

Googled around a bit and it seems quite complicated. Guess I'm gonna lay off that for a bit. Thanx for the info though

Tiersten · 11-01-2010, 01:51 PM

How clean we talking about here?

If you blow away the bootloader in flash then you'll be stuck if you don't have a JTAG adapter that supports 1.8V.

If you delete everything in flash then you'll lose the Kindle specific items like the Kindle ID and DRM keys and calibration data for your screen so if you don't have a backup then you're stuck again. You can't just copy it off another Kindle since the keys won't be corerct.

In theory you can recover from a bad firmware by putting the Kindle into recovery mode however we don't have any complete firmware images. The images that have been release so far have all been patches.

In short, it is possible but I wouldn't even consider it unless I had a full backup of the Kindle first and a 1.8V JTAG adapter along with software that supports the Freescale CPU and MoviNAND flash.

rapidblue · 11-01-2010, 01:54 PM

Aah, makes sense. I see you also right about the actual full firmwares - the current 3.0.3 is also only a patch (at about 3MB)...

Acorn · 11-01-2010, 01:57 PM

Hmm.. I'm thinking it might be a good idea to make a full backup of the filesystem on my Kindle.. just in case.

11-01-2010, 08:32 AM	#1
rapidblue Connoisseur Posts: 94 Karma: 10 Join Date: May 2010 Device: Kindle Oasis 3 / Kindle Voyage / Kindle Touch	Reflash K3 from scratch? Hi guys, Just out of interest, I was wondering if it's possible to wipe a Kindle 3 clean and then flash it from a clean state?? Thanx guys

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11-01-2010, 01:29 PM	#2
Acorn Connoisseur Posts: 56 Karma: 74 Join Date: Oct 2010 Device: Kindle 3	I'm pretty sure it's possible using the JTAG pins.

11-01-2010, 01:48 PM	#3
rapidblue Connoisseur Posts: 94 Karma: 10 Join Date: May 2010 Device: Kindle Oasis 3 / Kindle Voyage / Kindle Touch	Googled around a bit and it seems quite complicated. Guess I'm gonna lay off that for a bit. Thanx for the info though

11-01-2010, 01:51 PM	#4
Tiersten Guru Posts: 987 Karma: 8641 Join Date: Aug 2010 Device: Kindle 3G+WiFi	How clean we talking about here? If you blow away the bootloader in flash then you'll be stuck if you don't have a JTAG adapter that supports 1.8V. If you delete everything in flash then you'll lose the Kindle specific items like the Kindle ID and DRM keys and calibration data for your screen so if you don't have a backup then you're stuck again. You can't just copy it off another Kindle since the keys won't be corerct. In theory you can recover from a bad firmware by putting the Kindle into recovery mode however we don't have any complete firmware images. The images that have been release so far have all been patches. In short, it is possible but I wouldn't even consider it unless I had a full backup of the Kindle first and a 1.8V JTAG adapter along with software that supports the Freescale CPU and MoviNAND flash.

11-01-2010, 01:54 PM	#5
rapidblue Connoisseur Posts: 94 Karma: 10 Join Date: May 2010 Device: Kindle Oasis 3 / Kindle Voyage / Kindle Touch	Aah, makes sense. I see you also right about the actual full firmwares - the current 3.0.3 is also only a patch (at about 3MB)...

11-01-2010, 01:57 PM	#6
Acorn Connoisseur Posts: 56 Karma: 74 Join Date: Oct 2010 Device: Kindle 3	Hmm.. I'm thinking it might be a good idea to make a full backup of the filesystem on my Kindle.. just in case.

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