Unable to update firmware with Progammer

RE: Unable to update firmware with Progammer

John — Wed, 01 Apr 2020 21:15:54 GMT

Hmmm, I was advised to downgrade jlink to version 6.54 or lower as there is a problem with serial connection.

So after using nrfjprog as a programming method and subsequently downgrading to jlink 6.54 for another reason I hadn't checked using the programmer again.

So it works now, indicating that it may have been a jlink problem.

Use the following link and select 6.54 as the version.

https://www.segger.com/downloads/jlink/#J-LinkSoftwareAndDocumentationPack

RE: Unable to update firmware with Progammer

KarlPeters — Wed, 01 Apr 2020 14:10:54 GMT

Thanks for the reply John, unfortunately that didn't do the trick for me. I get this error:

log.log file attached.

devzone.nordicsemi.com/.../2451.log.log

RE: Unable to update firmware with Progammer

John — Tue, 31 Mar 2020 20:22:41 GMT

Yep, looks like it's the updated programmer, wasted a few hours on this, stuffing around with potentially damaged cables.....

If you use nrfjprog as a command line you will be able to communicate with your attached device

nrfjprog -e will erase the device

nrfjprog --reset will reset it

nrfjprog --program merged.hex will program the thing

RE: Unable to update firmware with Progammer

John — Tue, 31 Mar 2020 19:24:50 GMT

I have the same problem, I perhaps foolishly upgraded the programmer to v1.4.1