yellowsn0w updated to 0.98

DevTeam updated yellowsn0w to version 0.9.8. It will not work with regular 2.2.1 firmware. If you want 2.2.1, you need modified (!!!) firmware 2.2.1, in which old baseband from firmware 2.2 is preserved.

Version 0.9.8 adds strability and fixes some bugs. So If everything works fine, I reccomend just leave it like it is. For example, I use 0.9.6 and feel happy with 2.2 firmware.

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