Kaiser Rom downgrade

[robin24]

Hello,
well I have an HTC Kaiser and upgraded it to WM 6.1. However, now I'm experiencing some serious software incompatibility issues. So now I'd really like to downgrade to WM 6 again. I downloaded a German WM 6 custom RUU file with the WM 6.0 ROM, however that didn't work. Could anyone *please* provide some instructions on how to downgrade the device to WM 6 again? Thanks!!!
Robin24

[kristoff_sz]

Hello,
well I have an HTC Kaiser and upgraded it to WM 6.1. However, now I'm experiencing some serious software incompatibility issues. So now I'd really like to downgrade to WM 6 again. I downloaded a German WM 6 custom RUU file with the WM 6.0 ROM, however that didn't work. Could anyone *please* provide some instructions on how to downgrade the device to WM 6 again? Thanks!!!
Robin24

Use the search button before posting Bub.
Everything about that was already said.

[mbarvian]

What "didn't work" with the ROM downgrade? I was able to downgrade to Windows Mobile 6 perfectly

[met3ora]

People get confused because they think of it as an upgrade/downgrade. Merely flash a WM6.0 rom as you normally would.

[robin24]

Hi,
first, I wasn't able to find anything usefull with the search function, all the threads I found rever me to the wiki where I can't find anything usefull, lots of information about ROM up and downgrades, but nothing straightforward really.
Second, the RUU program starts the downgrade process and can read the build information on my device, but fails to downgrade and offers me some recovery tips. I hard reset the device, no success...
Robin24

[elrooster]

Hi,
first, I wasn't able to find anything usefull with the search function, all the threads I found rever me to the wiki where I can't find anything usefull, lots of information about ROM up and downgrades, but nothing straightforward really.
Second, the RUU program starts the downgrade process and can read the build information on my device, but fails to downgrade and offers me some recovery tips. I hard reset the device, no success...
Robin24

Try flashing the ROM with the Micro SD Card

Instructions

1. Get a MicroSD card that is formatted as Fat32. The card must be formatted as Fat32 otherwise it will not work. It doesn't need to be blank or freshly formatted (but it wont hurt if it is). An easy way to check if youre MicroSD are Fat32 is to use Pocket Mechanic and check "Card Information", Pocket Mechanic are licensed but trial are free.
2. Find the ROM image you would like to use, normally named RUU_Signed.nbh, and rename it to "KAISIMG.nbh". Depending on the source of your ROM file, it may not be named RUU_Signed.nbh, but just rename the nbh file you obtained to KAISIMG.nbh
3. Copy the file KAISIMG.nbh to the root of your microSD card
4. Plug the card into the phone, then enter boot loader mode by pressing down the Camera button, then using the stylus, press and hold the RESET button at the bottom of the phone. Release both buttons once the bootloader screen appears. (Kaiser Resets)
5. You will first see a tri-color screen then the information on the card. Press power button to start flashing.
6. After all these are done, press the reset button located at the bottom of the phone to reset the device.

All this information it's on the wiki

[robin24]

Hi,
thanks for this guide. I found it in the Wiki before, but didn't know where to get an NBH file from. However, I just found one in the custom RUU folder I downloaded. I renamed it to KAISIMG.nbh and copied it to the storage card. I'm not sure about how it is formated as I can't access the PDA to check, but I think these cards come formated as FAT32 by default and I didn't change anything there. When I reset the device while holding the camera button, it shows me some info about the KAISIMG file I think. However, when I press the power button nothing happens. Any ideas? Thanks!
Robin24