ranton: bugger neets..
thats a little uinfortunate.. because there is a far lower risk level to that method posted..
the I9000M is a sub model in think for canada..
I think its allowed 850 mzh band and disabled the 900 mhz band.. so you can probably use it on Telecom XT now..
Someone else reported flashing back to the original firmware. It retained the 3BR and put them back to the stock Optus firmware. I presume this might change it back to the I9000 model - without the "M" at the end.
for me though I wanted to get rid of the Optus bloatware which is why I haven't flashed back to the original firmware. And I'm hoping that when Froyo comes out it'll all come out in the wash anyway - though I admit to a very poor understanding of what will happen.
I really don't know if it'll change the Build number from ECLAIR.UGJH2 to FROYO.UGJH2 or the whole lot will change, including the Baseband version - and possibly the Model number.
If anyone knows, let me know. Presuming it doesn't change the Baseband version, even if I went back to the original Optus firmware, I'd still be stuck with that with Froyo.
From what I've read, I can just update my registry with the original details I had (in 3 places - can't remember them for certain) and it'll put it back to the Optus firmware and retain the 3BR functionality.