Downgrading to Original WM5 T-Mobile GER

[Kosta88]

Hello everyone, just a quick help please!
Bootloader is showing:
HERM300
IPL-1.04

HERM300
SPL-2.10.Olipro

Right now I have WM6 installed.
ROM version: 3.54.255.3
Radio version: 1.48.00.10
ExtROM version: 3.54.255.104

I want to downgrade for the selling purposes to:
HER_TMDE_1211113_1050200_GER_SHIP.exe (WM5)

Do I have to do anything else but just execute the exe and let it install? Could I brick it? (again)

Thanks a lot!
Kosta

[RideTheTube]

The same to me!

Please help guys!!!It´s very important because warranty

[Kosta88]

90 reads, not even a thought from anyone??

[talabzs]

Hi there,
i have upgraded several times WM6 and couple of times back to WM5 original, and WM5 cooked, i have not noticed any problem yet, but of course i did always the right thing, as ordered by upgrade....

Cheers,
Zs

[lagoskon]

90 reads, not even a thought from anyone??

Extact your Official Rom and make a new nbh file with all SPL,IPL,PrimarySplash,SecondarySplash,OS,ExtRom,Ra dio and use the new Hermes RUU flasher choosing "Force Unsafe SPL"


http://http://img170.imageshack.us/my.php?image=spl2vw0.jpghttp://img170.imageshack.us/img170/9203/spl2vw0.jpg (http://img170.imageshack.us/my.php?image=spl2vw0.jpg)

With this way you will also Downgrade the Olipro SPL and the device will be like it was when you bought it. Exactly like Original.

But remember that there is always 0-1% something goes wrong. I have done this procedure 3 times with no problems at all
(http://img170.imageshack.us/my.php?image=spl2vw0.jpg)

[Kosta88]

It doesn't have to be like when I bought it. It is not a must that I downgrade the bootloader...
Just, is the Olipro 2.10 bootloader going to work with WM5?
For selling purposes, the guy only wants it to have WM5 for some older programs (compatibility issues with WM6). Can I just install WM5 over WM6?

[lagoskon]

I think it can be done . Make the new nbh file I told you and choose Spl 2.10/2.30 (4th option) and flash