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QSX Stuck in Firmware Update Mode

 

When I power up my QDX, it's in Firmware Update mode. (LED flashing ~5Hz). The QDX drive appears on my Mac, but no files appear in the folder. I then drag the 1_05.QDX file to the folder and EEPROM.QDX suddenly appears as well. The LED starts flashing more rapidly, suggesting the firmware update is underway. After a bit, the LED turns solid red and the QDX seems to work.

However, when I then turn the QDX off and back on, it re-enters firmware-update mode. Powering off/on again and it's still in update mode. So the only way I can get out of update mode is to go through the update procedure each time I power up. QDX pcb rev 4.?
 

Low power voltage? Low current limit on the power supply?
 

On 16/11/2022 16:22, Crni Mrki, DK4BN wrote:
Low power voltage? Low current limit on the power supply?
Yes, must be the PSU or faulty QDX processor memory.

73 Alan G4ZFQ
 

Using a well-regulated power supply. Rock-solid 9vdc and plenty of current. Drawing 60ma at rest.

? ?...doug K6DRK
 

Maybe the device never got the initial load of the firmware from the "factory".? Stuff happens.

--
Mitch, AB4MW


Sent with secure email.

------- Original Message -------
On Wednesday, November 16th, 2022 at 12:40 PM, Doug Kaye <doug@...> wrote:

Using a well-regulated power supply. Rock-solid 9vdc and plenty of current. Drawing 60ma at rest.

? ?...doug K6DRK

 

Just a guess, but maybe there's a momentary loss of power such as noisy/dirty switch contacts that causes QDX to enter F/W upgrade mode? Try connecting everything but plug PS into wall socket last?

Is the QDX power socket solidly soldered on the PC board?

Hope it helps!

--Al
WD4AH
 

On Wed, Nov 16, 2022 at 12:40 PM, Doug Kaye wrote:
...Drawing 60ma at rest.
This seems low; the three I have, all 9V, idle around 140mA.

--Al
WD4AH
 

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Definitely low. Something basic is not right. I would send a support request to Hans via the website.

73,
Cliff, AE5ZA

On Nov 16, 2022, at 16:20, Al Holt <grovekid2@...> wrote:

On Wed, Nov 16, 2022 at 12:40 PM, Doug Kaye wrote:
...Drawing 60ma at rest.
This seems low; the three I have, all 9V, idle around 140mA.

--Al
WD4AH

 

Sounds like the CPU memory isn¡¯t surviving a power cycle, probably not something Hans tests for, as it should be pretty unlikely. I think this is the second one I¡¯ve heard of on this list.

Hans will make it right!

73, Willie N1JBJ

On Nov 16, 2022, at 10:53 AM, Doug Kaye <doug@...> wrote:

?When I power up my QDX, it's in Firmware Update mode. (LED flashing ~5Hz). The QDX drive appears on my Mac, but no files appear in the folder. I then drag the 1_05.QDX file to the folder and EEPROM.QDX suddenly appears as well. The LED starts flashing more rapidly, suggesting the firmware update is underway. After a bit, the LED turns solid red and the QDX seems to work.

However, when I then turn the QDX off and back on, it re-enters firmware-update mode. Powering off/on again and it's still in update mode. So the only way I can get out of update mode is to go through the update procedure each time I power up. QDX pcb rev 4.
 

¿ªÔÆÌåÓý

Is the output of IC1 at the correct 3.3v?

Milt w8nue

On Nov 16, 2022, at 4:46 PM, Cliff <ae5zaham@...> wrote:

?Definitely low. Something basic is not right. I would send a support request to Hans via the website.

73,
Cliff, AE5ZA

On Nov 16, 2022, at 16:20, Al Holt <grovekid2@...> wrote:

On Wed, Nov 16, 2022 at 12:40 PM, Doug Kaye wrote:
...Drawing 60ma at rest.
This seems low; the three I have, all 9V, idle around 140mA.

--Al
WD4AH

 

Thanks, Al. I don't think that's the problem. Other aspects of the QDX seem to be working well. I can use telnet and do other things.

? ?...doug K6DRK
 

Please ignore this thread and my others. Hans has helped me figure out all my problems, I think. The EEPROM is missing from the PCB! Thanks for all your help and advice. I've learned a lot along the way.
?
? ? ?¡­doug?K6DRK
 

Well, that will sure cause a problem!? Glad it's figured out.

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