Followed instructions as per above. Was able to update to 15%, did not recover. Now when I try to load the uspl, hardspl or flash I get a communications error. When I try to flash the ASIA ROM (above), it shows 1% then the phone blacks out and I get ERROR  Invalid vendor ID. When I yank the battery and turn back on, I get a the red, green blue screen with the following info: NIKI 100, SPL-1.16.0000, CPLD-4 (RUUNBH in top right corner).
Then you tried to update the ROM which doesn't work of course and now your Niki is still in Rom Update Mode.
You can get it out of that mode by using MTTY to connect to your device via USB (search for MTTY 1.42). Make sure activesync setting "Allow USB connections" is not checked!.
Press return 2 times and you will see a "Cmd>" prompt.
Type "task 8" and your device should reboot normally.
Then try again to flash the USPL or HardSPL (recommended) and once it is installed flash the ROM of your choice.