Huh. Okay, found out why it failed to trap the K2 US 2.5.4 OTA update. -_-"
Minor bugfix update. (v0.9.N & v3.6.N). Unless you care about trapping official update files, it's not a critical update, check the Changelog.
If you're updating from v3.5.N/v0.8.N, you just have to update the content of the linkfonts & linkss folders. No need to run the update*.bin file, no need to restart your Kindle

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