[keroro430]

Originally Posted by knc1

Sorry, I forgot about yours -
Make that two bricked Kindles.

Would you please give us the same information that I asked for in post:
https://www.mobileread.com/forums/sho...6&postcount=67

We can't fix what we can't duplicate, and we have not been able to duplicate this failure.
We desperately need the help of more information from the people who are having the problems.

Here you are

Spoiler:

How many documents/books where on the device?
Less than 25

Do you make bookmarks, annotations?
None

Do you use collections?
2

Use the Kindle's Cloud Account or just Local?
Both

You had a passcode set?
Yes

This was an ad supported (Special Offers) Kindle?
Yes

Do you recall what version of the firmware was running when you started this downgrade process?
5.7.4.1

Was the device registered?
Yes? I can use Send-to-Kindle.

What are the first six characters of the device's serial number (you can find that now in your Kindle account on Amazon).
G090G1