I have a Kindle PW2 that lost its jailbreak during a OTA upgrade to 5.6.5 - despite trying to save via the hotfix (I didn't realize someone took device out of airplane). I have a 1.8v serial adapter from some electronics kit and was planning on running the serial port jailbreak and getting back to 5.4.0 (the last firmware that worked correctly with Collection Manager). I have downgraded a couple of other PW2s from 5.4.2 to 5.4.0 and found that to be very straightforward via ssh.
My question: Instead of
1) soldering up the serial TTL cable
2) getting root pw via python
3) booting into diag via bootm 0xE41000
4) running jb script
5) installing rescue pack
6) dd-ing the main partition and kernel
Can I:
1) Solder serial
2) dd the main partition and kernel via
zcat /mnt/us/mmcblk0p1.bin.gz| dd of=/dev/mmcblk0p1 bs=4096
dd if=/mnt/us/main_kernel.img of=/dev/mmcblk0 bs=4096 seek=65
3) reboot into 5.4.0 then jailbreak using standard tool
Trying to make this as simple as possible - any suggestions appreciated.
Cheers!
My question: Instead of
1) soldering up the serial TTL cable
2) getting root pw via python
3) booting into diag via bootm 0xE41000
4) running jb script
5) installing rescue pack
6) dd-ing the main partition and kernel
Can I:
1) Solder serial
2) dd the main partition and kernel via
zcat /mnt/us/mmcblk0p1.bin.gz| dd of=/dev/mmcblk0p1 bs=4096
dd if=/mnt/us/main_kernel.img of=/dev/mmcblk0 bs=4096 seek=65
3) reboot into 5.4.0 then jailbreak using standard tool
Trying to make this as simple as possible - any suggestions appreciated.
Cheers!