Quote:
Originally Posted by eschwartz
That is correct, recent versions of the Kindle firmware are very picky about which update_*.bin's they accept.
(Basically, they check the source/target OTA min/max versions, which means every time any firmware update is released, everything would have to be rebuilt with KindleTool.)
Just install all new hacks with MrPI (MobileRead Package Installer). As recommended by the jailbreak instructions.
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Looks like i have big progress here.

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- I stay 5.7.4 firmware version install Kual, kual_helper from here
https://www.mobileread.com/forums/sho...d.php?t=203326

- Install Koreader from here
https://www.mobileread.com/forums/sho...d.php?t=209276 . Test most of formats work fine but have problem with big PDF files about 50 Mb (freeze).

- Intstall MobileRead Package Installer from here
https://www.mobileread.com/forums/sho...d.php?t=251143 after that kindle stop delete *.bin installlers from mrpackages folder even from reboot kindle.
- Try to make 6 step from 1st post using mrpackages folder and Kual -> Helper+ -> Install MR Packages. But dont not sure thats work fine because i dont see DISABLE_OTA file in the root folder.

- Also i install Kindle Menu v. 1.7b from here
https://www.mobileread.com/forums/sho...d.php?t=225860

- Install the package of programs and games from VlasovSoft from here
http://wiki.vlasovsoft.net/doku.php?id=ru:coolreader http://pbchess.vlasovsoft.net/ru/

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I must been in the airplane mode all the time? There is a risk to take update from amazon and lose all installed software, hacks, etc?