[Touch Dual, MDA Touch Plus ROM Development] :
Right, big post time. I have read the whole thread and soon to flash my NIKI200 with HardSPL. Below is everything that seemed important to mention. All information is from this thread. Please feel free to correct anything i have wrong. I have not done this myself yet, as i wanted someone to check i have everything in need and in the right order. So...

ALL INFO FOR THE NIKI100 and NIKI200 NOT THE NEON

01)Disable the keylock/password on your phone

02)Download the attached files in post 1 (and from here http://xdaforums.com/showpost.php?p=2786065&postcount=439)

03)Delete .nbh file from "flash-hardspl-niki" directory. (extracted from the flash-hardspl-niki.zip)

04)Put hardspl-1.22-nike-shipped.nbh into "flash-hardspl-niki" directory.(extracted from hardspl-1.22-nike-shipped.zip)

05)REMOVE SIM and SD CARDS !!

06)Connect usb cable

07) Make sure either Activesync or WMDC is synced with the device rather then just being connected via usb!

08) copy sspl-1.16-nike.exe to your device and run it (usb cable must be connected!)

09) after a few seconds "USB" appears on the display

10) unplug and replug the usb cable

11) Then flash the hardspl-1.22-nike-shipped.nbh by running ROMUpdateUtility.exe from flash-hardspl-niki directory

12) You should see progress bar on device and be flashed in about 3-5min

13) After installing the hardspl you can flash any rom (or splash or radio)

Tips:

- You'll need HardSPL 1.22 if you want to use ROMS with radios greater than 1.64. This includes the latest official ROMS released by HTC.

- If you want to upgrade to official ROM, then the process of HardSpl is not necessary.

- What HardSPL does is create a 'permanent' form of SPL on the phone (hence Hard SPL), and is there so that no programs will overwrite it. This is installed as insurance if you flash the phone a lot, or want to use non official ROMs.An alternative upgrade is SSPL (SoftSPL). This will update the SPL to whichever one you want, but it can be overwritten by another SSPL or HardSPL routine. Newer (or older) SSPL just needs to be flashed as required.If you want to overwrite HardSPL, you need to use USPL first, followed by new HardSPL or SSPL. The latter is done in cases where you need to return the phone for warranty purposes etc. Once HardSPL or SSPL in installed, you can flash your phone multiple times without needing to reflash the SPL with HardSPK or SoftSPL if the ROM you are using is compatible with this version. With HardSPL in place, the SPL is write protected. You can flash any ROM you want, including the official HTC WM 6.1 If you want to return the phone for warranty work, and want to erase your tracks, then you can flash SSPL first, and then reflash official SPL or just the official WM 6.1 ROM (which has SSPL 1.22 built it)

Trouble Shooting:

Q: After successfully flashing with the HardSPL, my Niki will now only be recognised as a USB storage device, so ActiveSync is not working any more. I can still go into boot loader mode to flash with a new ROM (now running the fantastic Niki Project), but the problem remains. I'm not sure if it's a PC or a phone problem (I only have access to one PC here), but it certainly didn't behave this way until the HardSPL flash.

A: Delete the activesync profile on your PC, do a hard reset on your phone and try again.

Q: Tested the flash-splash-niki and now i see everytime i start "test only not for sale", also after installing a german flash. what i have to do ???

A: Don't worry. that's normal

Q: Can i flash from Bluetooth?

A: Highly risky so i wouldn't.

Q: Seem to have a problem getting this working - I go through all the steps completely fine, it claims the hardspl-1.15mfg-nike.nbh rom is flashed fine, but I cannot get into the tricolour bootloader - I hold down the camera button when pressing the power button, but it just starts up as normal and goes into Windows Mobile. Any ideas?

A: Take battery out. Reinsert battery. Hold camera key down, and press power on button

Q: Please how can I copy the file (sspl-1.16-nike.exe) to my phone?

A: Connect your nike to the PC with the USB. Right click on the ActiveSync icon in the tray bar of your PC. Left click on "explore". Copy Paste from your PC to your Nike.

EDITS AND SUGGESTIONS WELCOME

Well i did the above and tested it by resetting it to the bootloader and it all seems to have worked. Now to repeat the process to get a new radio and rom on there.

I assume to put a radio or rom on it, i only need to follow steps 11 and 12?