Try this one, from post below, named : wifi_1.0a_dm800se.ipk

http://www.ourdreambox.com/ubbthreads.php?ubb=showflat&Number=242#Post242

Admin

P.S.: But the best would be to swap your sim to the new sim Japhar that will support the latest images, so you will have no more problems with Wifi drivers.

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