I found the Smart Messaging FAQ (Q15) that there is a way to restore the
original operator logo :
The easiest way to remove previously downloaded operator logo and restore
the original one is to send almost normal operator logo message to the
phone. The differences to the normal operator logo message are values of the
octets 9, 10 and 11, which determine values of the MCC and MNC. The octets
must have different values than the current operator's values. For example
the values of the octets 9 - 11 could be 000000. The content of the OTA
bitmap has no relevance in the message, therefore the OTA bitmap data can be
missing (header information is mandatory). When receiving this kind of
operator logo message the logo must be saved and after that the original
operator logo appears on the screen.
For example, the userdata of the message which removes old operator logo:
06050415820000300000000A00000001
Which would give with kannel :
http://localhost:13013/cgi-bin/sendsms?username=foo&password=foobar&to=06xxx
xxxxx&udh=%06%05%04%15%82%00%00&text=%30%00%00%00%0A%00%00%00%01
Gildas.
> -----Message d'origine-----
> De : [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]De la part de Stipe Tolj
> Envoy� : vendredi 7 septembre 2001 05:38
> � : Andreas Fink
> Cc : [EMAIL PROTECTED]
> Objet : Re: removing operator logos...?
>
>
> > Does anyone of you guys know how operator logos can be removed over SMS?
>
> we had similiar questions. -- It looks like there is no way to "tell"
> the Nokia handsets to restore the previous logo or even to make the
> current invisible without sending and saving an "empty logo" :((
>
> (But we know how to freeze the thing using a binary SMS, so if this
> helps?? :))
>
> Stipe
>
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