Issue when Programming

[YDe]

Hello,

I bought 2x nRF52840 and I used the "nRF Connect for Desktop v3.11.1 to program them.  Unfortunately, after clicking on the "Write" button, the programmer reach correctly the 100% of the programming but then, it stopped with an error.  The problem now is that I cannot use them anymore since they seem not working anymore:.

Could you tell me how to recover them?  Is there any tool available to "reprogram" them with the original firmware? 

Thanks in advance for your help.

[dejans]

Hi,

What are you trying to program and to which device?

Have you tried programming both devices? Does the error during programming occur only on one device or on both devices?

Best regards,
Dejan

[YDe]

I tried to program the boards for BLE sniffer ("sniffer_nrf52840dongle_nrf2840_4.1.0.hex").  Indeed, the same error appeared while programming each of the devices.  Both of them seems not operating anymore.
Kind regards,
YDe

[YDe]

In fact, we used the nRF51 dongle to sniff the BLE but apparently, this board seems to be obsolete.  It is the reason why we tried to switch to the nRF52.  If the nRF52 dongle version is not the most appropriate, what are you suggesting to use as a successor of this "old" nRF51 dongle?  From my understanding, the nRF52840 dongle should do the job as well, shouldn't it?

[dejans]

Hi,

You could use nRF52840 (PCA10059) dongle as a sniffer. Other available options are listed in the documentation.

Best regards,
Dejan

[YDe]

OK, this confirms that the nRF52840 dongle can well be used.  Then, coming back to my initial question: what can I do to make my 2 dongles again operational? Is there a module of the ""nRF Connect for Desktop v3.11.1" or any other "action" (hidden/secret commands?) that could be used to diagnose and make them working again?

Thanks in advance for your answer,

Rgds  

[YDe]

FYI, the button RESET helped me to try to reprogram of the dongle. But again, it failed: here is the message I got when I try to "Write" the "sniffer_nrf52840dongle_nrf522840_7cc811.hex":

Hope it helps to diagnose the problem.

Rgds,.

[YDe]

Hi gentleman.  We can close this ticket because the error "Failed to write: Error:Timeout waiting for device xxxxxxxxx to be attached and enumerated" that pops-up after writing the file is confusing but is normal since after programming, the dongle is not anymore in "bootlogger" mode.  Reaching 100% indicates that the firmware is well written in the dongle...

This ticket can then be closed, I guess.

[dejans]

Hi,

You can close the ticket if you considered the issue to be resolved.

Best regards,
Dejan