How to update JLink OB firmware on PCA10001?

[joc]

Hi, after I updated my MAC OS X to the latest version EI Capitan, I found my JLink commander cannot connect to the PCA10001 board again even with the Jlink commander updated to the latest. After some search work, I speculate that the JLink OB firmware is too old which is V7.0 for me. So I try to update the JLink OB firmware, but don't know how to ?

I was told by someone the firmware would be prompted to upgrade autmomatically with the nrfgo 1.15, but it didn't happen to me...

[Håkon Alseth]

Hi,

The firmware should be continuously updated when you update your segger installation. In my PCA10001, this is the firmware version:

Firmware: J-Link OB-SAM3U128 V1 compiled Aug 28 2015 19:26:23

Apparently, there has been some changes to the USB module in El capitan (based on google hits), where some users has to connect their debugger to a windows machine running the latest Segger installation to get the firmware update.

Could you try updating this using a linux/win PC and see if starts working on El Capitan?

Best regards, Håkon

[joc]

Yes, I had tried updating Segger installation on PC but there's no Jlink OB update followed...Btw, the board works well on PC.

[Håkon Alseth]

What version of the firmware is detected? It should include a string like the above if you open JLink GDBServer or J-Link Commander.

Cheers, Håkon