Quectel BG96: band selection does not take effect

Reinhard Speyerer rspmn at arcor.de
Tue Jul 7 13:23:50 UTC 2020


On Tue, Jul 07, 2020 at 03:16:09PM +0200, Reinhard Speyerer wrote:
> On Tue, Jul 07, 2020 at 01:56:34PM +0200, Fredrik Flornes Ellertsen wrote:
> [...]
> > <<<<<< TLV:
> > <<<<<<   type   = 0x25
> > <<<<<<   length = 8
> > <<<<<<   value  = 9F:18:0E:0A:40:00:00:00
> > <<<<<< TLV:
> > <<<<<<   type   = 0x26
> > <<<<<<   length = 8
> > <<<<<<   value  = 9F:18:0E:0A:00:00:00:00
> > <<<<<< TLV:
> > <<<<<<   type   = 0x27
> > <<<<<<   length = 17
> > <<<<<<   value  = 04:08:00:00:00:0A:00:00:00:0B:00:00:00:04:00:00:00
> > 
> > Resetting the modem doesn't help either. I am not sure whether this mailing
> > list is the correct forum for this question or if I should ask Quectel
> > about this. Any help is very much appreciated.
> > 
> 
> Hi Fredrik,
> 
> when looking at TLVs 0x24 and 0x25 one can see that their values when
> interpreted as a LTE bandmask seem to match the values supported by the
> BG96 for Cat-M1 and CAT-NB1.
> 

Sorry,
that should read TLVs 0x25 and 0x26.

Regards,
Reinhard

> My guess is that there would also be two additional extended LTE band
> preference TLVs for MDM9205-based devices like Quectel BG95 and
> Telit ME910G1 since they may support LTE bands > 64:
> 
> Regards,
> Reinhard
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