How do i get Root acces on DRC92 ???

[ksrtie]

T-mobile G1
Firmware version 1.6
Baseband Version 62.50S.20.17U_2.22.19.26I
Kernel Version 2.6.29-00479-g3c7df37
android-build@apa26 #19
Build Number DRC92


Hi guys ,new in here.
I have a T-mobile G1 that i Bought From Germany But I live in Greece. I wanted to root and upgrade it into cyanogen but i had to downgrade it first into 1.5 or 1.0 . i tried many links and guides but i always get the 00028002 error and then the rainbow screen with the Serial0 error. many had the same problem but no clue ... Any Ideas??? i am 100% sure that the format of my SD is FAT32 but not sure about the file i download. i tried many.I cant even install the original SPL.
Thanks in advance!

on the Rainbow screen it shows these for me :

DREA110 PVT 32B
HBOOT-0.95.0000
CPLD-4
RADIO-2.22.19.26I

[Mricecool]

AOA, brother i have the exact same specs as you....you need a goldcard for your sd card to apply any install from the sd.

[ksrtie]

Hi Bro !
i tried some links refering to the goldcard way but no results . Any good links that can help? Have you managed to Downgrade yours?