Yes, I detailed how to a few pages back, basically you instal hardware radio 2.12 and insert software radio 5.51 into the ROM before flashing. Could be, I wrote that on cotullas thread. Check there too if you can't find the instructions here. It's pretty simple and straight forward.
After changing your radio you can apply the "camera trick" after each boot and the battery will be better.
Sent from my multi talented HD2
Thank's, your message in Cotulla's thread ^^. It was hard to find hardware radio in google (most filesharing services are closed or file deleted O.o). I don't have currently windows installed on my pc, so I used virtual machine to flash radio (it won't let me flash rom from there), so I just flashed 2.12 and left rom as it was without any files replaced, did camera fix and it seems to be works. Can't tell that battery life is perfect, but it consumed 10% after night instead of 60% like was before.
OK mate but replacing the Software Radio in the ROM is even easier than flashing the Hardware radio as you only need to open the file "Data.zip" from the ROM-Package and replace the file "part00.bin" with the one from my Radio 5.51.09.29_188.8.131.52U.zip Archive. On windows i would've said you should use 7zip, don't know what archiving program you got on ur OS but it would certainly work nonetheless.
And concerning the Camera Trick (launch cam, switch to video recording mode, wait for autofocus to work once, go back to home screen): as far as i know it only works on Software Radio 5.51 and NOT on 5.71 so you must be wrong mate. Battery cannot be much better like that!
And please mate, have a look in my WP7 Folder on MediaFire, you find HTC Test Tools there and there is one called battery tool. That is a very simple app which reads the current battery state for you, including the current power drain in ma/H. So, if you launch that app right after coming from standby, wait 10 seconds, it will tell you how much current was flowing during standby. Should not be higher than 10 ma/H. Without the Camera Trick it would read rather around 40-ish or so.