What ROM works for old Wallaby?

[PhoneGeek]

I have one o the first T-Mobile wallaby, p/n 99HL0000-00

It originally (2003) came with 3.14.40, R6.18
Now I have R6.25.02
it boots with 3.17.07

I want to make it WM2003.
It does not boot 4.01.16, T-Mobile official upgrade, 4.00.33
(yes, I spent lot of time in the ROM Kitchen lately...)

Is there a WM2003 that this hardware will boot, or have I missed something paramount in the upgrade process? (using XDA OS, bootloader, and SD cards)

Thanks or any advice!

[PhoneGeek]

ok,

When switched on, it is supposed to pling ihin 20 seconds. All display updates (ROM versions) take place, but the pling and start of screen lignment never happens. Screen stays on until out of battery.

[cruisin-thru]

I had this problem when using an mmc card, when I used an sd card it worked fine, I have no idea why.