[HD2 Android Q&A, Help & Troubleshooting and Genera] Cruonit:
I just unbricked my HD2 from the white screen with no logo. I spent the whole day reading hunderts of post about the white screen- bricked HD2 - the solution was to change the mainboard (at least the official service did that) and the people mostly sold the phone as bricked, its maybe also an production problem with HD2 because it's caracteristic and usual for it.

I think the Radio ROM is the problem and that it's a hardware error caused by overheating(i will report if the problems occurs again but i think it works now).

How it began(STORY):

I went on a trip and used google maps and route66 with GPS/WIFI all the time. My OS was Android Nand ICS and it wasn't too hot. The first problems started with random white screen occurrences trought the day as i was using google maps so i took out the battery and restarted, it worket but soon after the white screen occurred again. The white screen occurrences became more often and at the end there was only the white screen. (people reported the the phone somtimes worked when they recharded the battery and left it alone for a few days, after that they flashed the new rom )

I used the ICS rom for a few months with no problems(same reported from other users).

One theory(i read it on the forum) that the ICS is constantly overheating the HD2 + route66 mabe it bricked because of it.

So there is no other way, it has to be an hardware problem but the good news is it can some kind of be fixed (because i think it caused an radio mailfunction) !

SOLUTION:

So this is the way how i solved it:

- I downloaded an old version of the stock HD2 WM rom(i found somewhere that it can fix the problem) so with radio.

- I extracted the .exe file with WinRAR(or 7z, winzp...) and renamed the RUU_Signed.nbh to LEOIMG.nbh

- I copied LEOIMG.nbh to my SD Card (they said it should max 4GB, and has to be FAT32)

- I entred the HSPL with Volume down + Power and it found the rom on the SD card i pressed Power to install it and it FAILED !!!!

- I was depresed again :|

- I keept reading and may owners had the same problem, someone suggested that the update worked for him after he left the phone in a bag in the fridge. I had no fridge in the hostel (and no SD card writer only the ROM on my SD card) so i tried it again AND IT WORKED !!!

After that i got a HTC screen that didn't boot. I flashed HSPL3 (also from the second try, flashing from HD2 tools(HSPL2) didn't work) and installed official WM from the HTC HD2 support and i think i will use it from now on (or WM7) .

After i did it once it didnt work(flashing from SD card) so i used this method:

- Entered the SPL/HSPL

- Flashed HSPL4 sometimes it does not work but you have to keep trying

- Task29

- Updated a stock WM6.5 from the PC !! (from the SD card didnt work(

- works :)

PS: If you see only the white screen when you turn it on you need to wait few days to get to the HTC seceen so a hardware error. Maybe try to put the battery and simcard out of the phone or put it in a plastic bag in a fridge ... maybe it will accelerate the process

So my theory:

- The overheading caused a hardware error that damaged the Radio ROM and the software(but how?).

- It's a producttion problem(may owners with the same problem)

- It mostly occurrs to android users - and mostly ICS

- As an engineer i have no idea why it works now but i like it :)