Thanks for all the hints/tips :-)

I think my Teledongle is later than the bad batch as I did have a 1455 Sn 
version but got a newer version after that which is what I now use. I’ll check 
again when I get home.

Regards,
Kieran


> On 13 Aug 2018, at 04:21, Bdale Garbee <[email protected]> wrote:
> 
> Stewart Campbell <[email protected]> writes:
> 
>> You haven't got an older Teledongle have you?  Some of the 
>> earlier ones had problems with the RF chip.
> 
> It wasn't all earlier units, fwiw, but specific date codes on the CC1111
> RF system on chip parts from just after TI moved production from one fab
> to another.  The units built with suspect parts are
> 
>   TeleBT v1.1 sn 1070-1189
>   TeleDongle v0.2b sn 1378-1593
> 
> Some of these work just fine, but we had ridiculously high failure
> rates in production testing, and a few more have given customers trouble.
> 
> If you have a unit in one of these ranges that's giving you RF trouble,
> don't waste *any* time trying to re-cal it or anything like that, just
> let me know so I can set up an RMA number for you and replace it.
> 
> Bdale
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