So, in summary, what we're saying is this:

Upgrade to 3.52 M33, then to 3.52 M33-4.
Then upgrade to 3.71 M33, then 3.71 M33-4.
(It might be a good idea, now, to install the 1.50 kernel addon v2.)
You're now ready for the release of 3.80 M33, and as a bonus, you've got the current latest-and-greatest in firmwares!

If you need any help in doing that, we at PSP3D are here to help!

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