[JAMin, XDA Neo, S200 ROM Development] tonydeli7:
How to upgrade from WM5 TO WM6

To upgrade your prophet to WM6 I recommend that you first of all downgrade to the NVID version of WM5 AKU2.2 and get the latest Active Sync:

1. Download the NVID(no vendor) AKU2.2 rom for WM5 here :http://rapidshare.com/files/17208693/RUU_Prophet_220734_2207114_024721_NVID.exe YOU CAN USE Step1 of PdaMobiz or PDAViet Temp INSTEAD OF NVID(no vendor) AKU2.2 ROM...

2. After it has been downloaded get the latest Active Sync from Microsoft.com

3. Install active sync, you might need to reboot

4. When your computer has rebooted, run the file from step No 1 . Follow the steps, remember that it can take some time and seem to stuck at 80% and higher, but just wait.

5. When you have done this, your pda will reboot. After it comes with the welcome to windows mobile screen,"Tap Here To Begin",JUST LEAVE IT. In fact don't touch your device before the next steps are finished.

6. Now download one of the WM6 versions( http://xdaforums.com/showpost.php?p=1279985&postcount=1 )

7. Now find a file named Upgrade.bat,and run it.(you don't have to run Step1 of PdaMobiz or PDAViet Temp,as you have already downgraded to AKU2.2)

8. Wait until the upgrade finishes(usually takes 12-15minutes)..WAIT WAIT WAIT

9. A message will be displayed in the dos box,and it will say that the upgrade is finished etc....etc...,now you HAVE to HARD RESET,to finish the upgrade and enjoy you new WM6!

How to downgrade from WM6 TO WM5

The downgrade process from WM6 to WM5 is pretty simple. All you have to do is to downgrade to WM5 NVID and after that upgrade to the WM5 you want:

1. Download the NVID(no vendor) AKU 2.2 rom for WM5 here :http://rapidshare.com/files/17208693/RUU_Prophet_220734_2207114_024721_NVID.exeYOU CAN USE Step1 of PdaMobiz or PDAViet Temp INSTEAD OF NVID(no vendor) AKU2.2 ROM...

2. After it has been downloaded get the latest Active Sync from Microsoft.com.. Simply search for "Active Sync"

3. Install active sync, you might need to reboot

4. When your PC is ready run the NVID file you downloaded in step1 and follow the guide, remember that it can take some time and seem to stuck at 80% and higher, but just wait

5. When its done downgrading to the NVID WM5 rom, you prophet will reset and you can upgrade to the version of WM5 you want.

NOTICE

If you use a different AKU 2.2 ROM(like PDAViet Temp),you may have two EXEs in the folder you extracted.Be careful and use the one that is made for your device:

FILENAME G3.EXE

is for G3 devices:IPL x.xx.0000, SPL x.xx.000.0 (this is shown when you reset)

FILENAME G4.EXE

is for G4 devices:IPL x.xx.0001, SPL x.xx.000.1 (this is shown when you reset)

RECOVERING FROM ERROR IN STEP 8 WM5->WM6

1. Don't panic

2. Don't panic

3. Unplug the phone

4. Reset with stylus,and keep the Camera Button pressed.

5. A 3 color screen will appear(Bootloader Screen)

6. Connect your device with your PC,and run the NVID(no vendor) WM5 rom.

7. The device will be resetted after RUU(rom update utility)finishes

8. Repeat the WM6 upgrade,from STEP 5..

How to switch or upgrade/downgrade between WM6 versions(for example PDAViet->Trueneytral)

1. First you have to downgrade to WM5 AKU2.2 using the WM6->WM5 guide(some say that you don't have to do that,but i believe that it's better to downgrade first rather than making a simple overwrite)

2. Now follow STEP 5 of the WM5->WM6 guide

Device doesn't connect to PC after flash

If your device doesn't connect to your PC after flash,just enter bootloader(press camera button+while pressing soft reset and hold,until a tri-color screen shows up),and flash the NoVendor WM5 Rom: http://rapidshare.com/files/17208693/RUU_Prophet_220734_2207114_024721_NVID.exe .Then repeat the whole process...

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KEEP IN MIND:

UPGRADING CAN BE DANGEROUS,YOU ARE RESPONSIBLE FOR THE DAMAGE TO YOUR PHONE

DO NOT RESTORE BACKUPS FROM ANY ROM OTHER THAN THE ONE IT WAS CREATED ON

THERE IS NO "BEST WM6 ROM",THE BEST IS THE ONE THAT WORKS BEST FOR YOU

(part of the guide is taken from Da9L's guide,in the WM6 Rom Collection)