I've been trying to get the E220 Huawei dongle working & haven't managed it. When it didn't work initially I've did the following.
1: Followed the instructions on http://126.96.36.199/cnmlifestyle/downloads/recoveryimage.htm
- to go right back to the start (so, started by installing the uimage1.zip to get back to v64.
2: Then updated the firmware - so it's now v70.
3: Next, used System update to get any other updates.
4: Then downloaded E220-R3-1201(20080825).info & E220-R3-1201(20080825).patch & ran that.
5: Plugged the dongle in. Got an error message: "The device of USB modem was not found, couldn't connect".
The lights were flashing on the dongle, as they generally do.
Other trouble shooting.
Tried all 3 USB ports.
Tried disabling the wifi (though from reading here, it seems to be more likely that the dongle will affect the wifi than the other way round.
Tried with the power supply in & out.
Tried re-starting a few times.
The dongle's working fine on a PC. The original firmware was 11.117.08. (can't remember the rest of the numbers)
Updated it to 11.117.09.00.00. - still works on the PC - but not on the CNMbook.
Any further suggestions??