Shy Q2686RD modules

Legacy Legacy AirPrime modules
1

Hiya,

I’ve got three Q2686RD modules here that I cannot communicate with. Lights are on, but nobody is home.

I’ve put each one in the Development Board and connected to them using a hard RS232 connection from the docking station on my laptop.

None of the modules will respond to AT commands (or even just ‘AT’ - which I would expect to get even if the module is stuck in download mode).

I’ve used DWLWin (V 4.2.1.6) to attempt to reflash the modules - with each module DWLWin will download the boot-loader (takes about 9 seconds), then times out at about 19 seconds with the message “Fatal timeout error: the target is no longer responding”.

It’s been a while since I used DWLWin, but have never had these issues before.

Any thoughts or pointers to get these modules going again would be appreciated.

Ciao, Dave

2

is it working on USB?

3

Are they brand new? Have they ever worked?

I gather you have others that do work?

ISTR something like that with a WMP100 board: it was the first prototype run and, IIRC, turned out to be a fault with the external memory.

Hence the question of whether these have ever worked…

4

Hiya,

No, the devices do not enumerate.

They’re not new (had them for 12 months or so), and yes I have had them working in the past (in the same dev board).

Haven’t got any more Q2686RD - but the Q2686 and Q2698 modules do work in the same dev board.

Interesting…

They’re dead technology here in Oz now - the Telstra 900MHz GSM system is being taken off-line in December. But … they’re still useful for testing code against when having issues with the Q2698 (of which I could write a small book about).

ciao, Dave