Originally Posted by sisselpie
I'm so sorry that i mistake the SN.
the SN is 9017 and the firmware is 188.8.131.52 .my kindle is bought in china。
I downgrade the fm to 184.108.40.206 and then use the packet in the snapshot .The "jailbreak" appears at the bottom of the screen .
But when i tried to install KPVBooklet, the .bin file is deleted and the "Update Your Kindle" link stays grayed out.
so what should i do?
Is this kind of kindle's mechanism that it delete the .bin files copied in its root dir?
The packages on NiLuJe's snapshot thread are re-packaged for device 9017 - use those packages.
Yes, it is a safety protection from installing a .bin file not intended for that model.
Packages are both "model locked" and "digitally signed" -
Mis-match of model or bad signature - update file gets discarded.