Mmmmm........ Man, thats a big jump dude. Nandroid it first then flash. If it works it works. If not you got nandroid to go back to. usually dirty flashing is fine TBH with you. I just dont support it.
You need to flash the kernel. See the op for specific instructions. If after reading the instructions and still cannot figure it out let us know. If you donh let us know make sure you post your raidio and hboot version.
Make a Nand. Clean wiped install. Restore Data only from nand. Will get everything back. Works as long as the base does not change. I never dirty flash.
---------- Post added at 07:37 PM ---------- Previous post was at 07:34 PM ----------
4.5 is basically 4.4 with new 3.14 kernel. If you don't like the performance. Flash the 3.13 kernel and wifi module.
So I am on 4.4 pro version htc unlocked with the gb firmware patch. I downloaded the new patch & ph189.zip file from the op. Just flashed them both.
Kernel version is 3.0.16
Build number 3.13.605
Is that right? Or am I still on the old leak still that was released with 4.4. Thanks!