I decided to try this on my DXG still at 3.1 for the last few years. My need is mostly for the TLS fixes.
I failed to update from 3.1 to 3.3 because of a U007 error. This might be due to my jailbreak except I just installed USBNet and made a dxg 3.1 rootfs.img backup before trying the update. My jailbreak might still be from when I first followed Yifan Lu's instructions to take my KDX from 2.5.8 to 3.1 OS and could be the problem.
I believe I edited the 3.3 update-06-558700031-611680021.bin correctly for the dxg:
Quote:
Signature: FC02 (OTA update)
min version: 558700031
max version: 611680021
device code: 09
optional: no
md5 of tgz: 4b722e59ad163c1e507f2f51716124ec
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The update failed with U007 error. I had this same error when trying to update my K3 from 3.1 to 3.4.2 and finally had to revert to 3.0.2 using the pastebin rootfs with k3flasher and then was able to install the Amazon updates without error. These U007 errors stop my efforts. All I can think of is trying to find the 3.2.1 update and starting from there.
The attached ;dumpMessages doesn't give much help. Also, I was wondering if you could post your ;dumpMessages from the DX with 3.4.2 to show how the DX likes the update? I am prepared to return to 3.1 if 3.4.2 has problems except now I can't get to 3.4.2.