I also got the update notice, which I haven't installed yet. But here is what it was trying to download:
Quote:
http://download2.kobobooks.com/zeus/update-781.zip
SHA1: 117d3551dfe3e0f70303bb5ff44d79423f54ac92
Files with new modification dates, however, many more files have the same date but different sizes. These are NOT the only changes.
2014-06-24 17:17 system/data/srsmodels.lic
2014-06-24 17:17 system/etc/security/otacerts.zip
2014-06-24 17:17 system/lib/egl/egl.cfg
2014-06-24 17:17 system/lib/libbcc.so.sha1
2014-06-24 17:17 system/media/bootanimation.zip
2014-06-24 17:17 system/usr/share/zoneinfo/zoneinfo.version
* Many system .apk files now include optimized .odex counterparts.
* A user on GitHub suggests this update disables OpenSSL Heartbeats.
* It's still Android Jellybean 4.1.1. It's NOT KitKat or JB 4.2.
* It seems to be "safe" to update rooted devices, install Arctic.apk/SuperSU again
Unified diff: http://slexy.org/view/s2ZjqyJKxX
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The previous Jellybean firmware update was, from May 2013:
And here's the final ICS version (Android 4.0):
I think you can just copy this into /sdcard as "update.zip" and reboot, although you may need to wipe the user data partition and cache if you go backwards.