Qtek 2020 i PlusGSM

[Tree]

I have Qtek 2020 in Plus GSM (Poland).
ROM version: 1.66.00WWE
ROM date 02/20/04
Radio version: 1.10.00
Protocol version: 1337.18
ExtROM version: 1.66.130

My operator didn't relase 1.72 version yet :(

Which ROM I should use ?
Is there any step-by-step instruction how to prepare ROM to my Qtek ?

I'm a little lost in this forum. I don't want to annihilate my Qtek ;)
Please for help!

Tree

[Tree]

I done it :)

Tree