Maybe we need to start looking at the full eight characters?
There could be some embedded relationship we did not spot when they first changed the serial number format.
We have one interesting trouble report of a PW-3, first six identical on two devices, one an early purchase, one a recent purchase, same factory-5.7.4 downgrade file - -
The early (older one) worked, the recent (new one) is stuck on YKNR.
Fixed: See:
https://www.mobileread.com/forums/sho...&postcount=365
Our very first PW-3 report with factory-5.7.4 on a recent purchase was a "just worked"
- - - -
Perhaps we could talk some of our native Chinese speakers into doing our own translation of the directions? (maybe on a wiki page?)
It seems that kindlefere's members with PW-3W devices are still reporting a lot of problems.
Humm...
But they have two or three times as many downgrade users as we have also.