Systeme D

26 June 2008

Huawei E220 on Mac OS X

A couple of tips to make the E220 3G USB modem work a bit less dreadfully on OS X. I suspect the missing tip is 'upgrading the internal firmware', which sadly can only be done from a Windows box.

Firstly, download the latest Mac drivers - at the time of writing, the April 2008 revision. These work with Leopard, seem to be a bit less prone to the "You have inserted a disc that cannot be read by this computer" alert, and crash less often. When I say "less", I mean you might get away with one kernal panic per week. If you're lucky.

Secondly, you might want to try setting it to "3G only". This works if you're staying in one place where the reception occasionally drops down to 2G, because on renegotiation, the Mac tends to lose connectivity for a minute or more. A 3G-only connection will go slowly and occasionally pause, but not suffer so many of the serious drop-outs.

To do this, open a terminal window, and type:

screen /dev/tty.HUAWEIMobile-Modem
ATSYSCFG=14,1,3FFFFFFF,2,4

then, to quit, ctrl-A, ctrl-\, and Y.

Thanks to Paul Sladen for drawing my attention to this page in the pub in Birmingham!

Comments

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