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Old 05-24-2017, 08:42 AM   #62
knc1
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Posts: 17,212
Karma: 18210809
Join Date: Feb 2012
Location: Central Texas
Device: No K1, PW2, KV, KOA
Quote:
Originally Posted by baalajimaestro View Post
Sirs, A Problem appeared while Diags downgrading my Kindle PW2(9017). It doesnt boot now. Undergoes a boot loop. OS used PW2 5.6.5 to flash.(the one I provided a link). When I extracted it with kindletool it showed kindle PW2 Intl as compatible. Dont know what happened.While this command was given:

Code:
zcat /mnt/us/rootfs.img.gz | dd of=/dev/mmcblk0p1 bs=4096
Kindle gave back this to my terminal on linux


Seems like this should have more warnings!

How can de-brick my kindle?
Still diags works and i am able to ssh to my kindle!

Can I retry it with bin files from 5.8.7?

Please help me out!

B.Baalaji
Quote:
Originally Posted by Antinoos View Post
Is it definitely a PW2?? Such an old model?! Bought second hand? The intial special factory downgrade version for that model is 5.4.3.2 (see post #1 step 3). This MUST be used. Not any other version... or you'll brick your device.
Quote:
Originally Posted by baalajimaestro View Post
Oops! So what can be done now? Can the files that are provided in your thread the ones >5.7.4 work with my device? Can i use WinSCP to again do the same thing from the first?

B.Baalaji
You must have newer than 5.4.5.1 to support TLS with recent ca-certs file.
Ref: https://www.amazon.com/gp/help/custo...deId=202048000

Firmware 5.7.4(.0.1) will run both PW2-2GB and PW2-4GB models.
I do not recall how old you can go to still have a common firmware for the two models.
And if your PW-2 is from China (regardless of the model number), nothing 5.6.x or older will work. So watch out for things purchased used that may have originally been sold in China.

Try some and let us know. Maybe make up a Wiki table page with the information.
Also check the total flash size (you can tell the difference by checking the storage size of that visible over the USB cable - if you have more than 2GB storage for books, you don't have the 2GB model ).
Your 9017 should be one size and your B017 should be the other. Post what you find.

Be certain to transfer both the matching kernel (uimage) and the file system image.
The kernel modules are stored in two locations (some in the uimage, some in the file system image) and the must match.

There have been a zillion pages written here on manually de-bricking a Kindle. Read them. All touch screen devices are the same procedure, except for the file names.
You can find links to them in the Master Index sticky (the thread with "Where do I start?" in its title).
You'll be a real Kindle-Guru when you finish everything that geekmaster has written on the subject.

Last edited by knc1; 05-24-2017 at 09:01 AM.
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