This is same post I done it before, but with links to help you guys with no headache.
Thank you very much guys, this is really awesome. I done the jailbreak and installed Koreader smoothly on my Kindle Oasis V10. latest FW
Just in case someone needs help with the files I used to install the jailbreak, everything was from the winterbreak site, but I will mentioned it:
1.
WinterBreak.tar.gz
2.
Update_hotfix_universal.bin
3.
kual-mrinstaller-khf.tar.xz
4.
Update_KUALBooklet_ALLDEVICES_KS2_install.bin (which is Kual Coplate)
5.
renameotabin folder
6.
For Koreader I used koreader-kindlehf-v2024.11-131-g5cd9494ae_2025-01-10
Hope this will help anyone have same my device to jailbreak with no scary moments.
NOTE: just in case your FW updated during the process of jailbreak to the latest FW, you will notice NO HOTFIX book appear. This is normal, you need just to redo the jailbreak from beginning as the new FW delete the Jailbreak. I had this problem then just installed WinterBreak again and then the hotfix(like in the site steps)then the hotfix book appeared and continue to the next step.