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Old 11-25-2017, 08:30 PM   #12
fmica
Junior Member
fmica began at the beginning.
 
Posts: 3
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Join Date: Nov 2017
Device: PW3
Question Serial downgrading?

I just got my PW3 on 5.9.2 and started looking into jailbreaking. Would it be possible to achieve jailbreak using the serial jailbreak method? I saw someone who was able to force a downgrade by placing the firmware file in the root directory and using an option in the diagnostic console. Maybe this could help get it to an FW supporting jailbreak?

Quote:
Originally Posted by rola25 View Post
Hi to all

I managed to serial jailbreak my kindle voyage with this board:
https://www.amazon.de/gp/product/B0178HVEH0 (removed the jumper - did not use a voltage level shifter)

Just soldered part of a floppy cable to the serial ports RX/TX and taped a cable for ground on one of the metal plates.
I had a little problem - could not get into diags via bootm 0xe41000 but I copied the factory firmware to the kindle in advance and when you boot up serial at some time there is a message "Press ENTER to open menu" or something like that where you could select to upgrade/downgrade the Voyage with a bin file from /mnt/us. After that I was able to use the installHtml jailbreak method.

Thanks to all
rola
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