[Desire HD General] pnomandk:
Just to report back and say thanks for the help here again (and yes, I've also used the thanks button for that):

I succeeded in running the aahk and eventually upgrade to JellyTime R30 and the latest radio 26.17, but not without hazzles: The aahk kit itself ran without problems, but for some weird reason my Linux based PC had one of the very rare glitches it gets, and actually stalled/crashed during the middle of a radio upgrade around 68%... pretty bad (only been happening after I upgraded to Ubuntu 12.10 on that box; most of my other boxes will remain on 12.04 for a while still).

Luckily the aahk kit seems to be able to recover from almost any bad conditions, so after having restarted the box I just ran the kit again, and after some major wizardry it downgraded the phone and rooted it.

Flashing JellyTime was simple; I did that with RomManager and some reboots into hboot/fastboot/... (had to re-install CWM from within RomManager; seems like that was somehow not in place after the aahk was done -- or maybe it was just RomManager that couldn't see it properly).

However, GPS didn't work with the radio that was flashed by aahk, so I tried to upgrade to the same radio version I had before. That did NOT work at all; neither the fastboot flash radio method nor using the hboot/fastboot to flash a PD98IMG.zip file -- it recognized the zip file but complained about some error that was only displayed for a split second. Might have been a corrupt file, although I did try to get the image from the radio thread and also compare md5sums (also on the phone after having copied it there). Not sure why this happened, though...

I eventually succeeded in flashing the 26.17 radio that is also floating around on the net and is linked from the Radio thread. There are some warnings that it cannot be downgraded easily, but since 26.10 that got flashed by aahk didn't work and the 26.14 wasn't flashable for me, I figured it would be better to try 26.17 anyway -- and it does seem to work.

There are some reports of slower d/l speeds, but mine worked pretty well -- one simple test on a HSDPA network here gave me 6.2 Mpbs d/l, which I consider pretty good here...

I would have liked to post some of this in the JellyTime thread, but I'm too noob to be allowed to comment there, so I guess I'm not allowed to be of too much help to those that have similar issues there... I guess I'll eventually be allowed to grow up at some point, though :)

---------- Post added at 04:28 PM ---------- Previous post was at 04:23 PM ----------

... oh, and one thing more I forgot: In JT R30, I've got the problem that occasionally the browser "runs wild" in the background. "Something" gets it started and then it just keeps running, consuming CPU and thus battery juice pretty quickly.

I can kill it OK and then it works fine after that (for some time). I've also now installed a task manager to keep an eye on it and warn me when something goes wild.

But I'm out of ideas on what starts it and what causes it to keep running in the background. I had Play or Google Now suspected, but none of them seems to start the browser (been checking running processes with adb and top/ps).

Any ideas?