Only downgrade from 2.30.03?
Can one downgrade from other baseband?(with bl5.8) Or one can only downgrade from 2.30.03.
Cause I saw on Geohot's blog that one need other patch(cert) to downgrade from other baseband firmware.
However when I compared the .fls file in this package with the original took from 2.2.1 ramdisk, it is the same.
Maybe the patch is done by PHaseBanDowngrader on the fly?
P.S. : I myself has 2.28.00 with bl5.9, just out of curiosity.