nRFGo Studio flash erase/programming issue

[Kuba]

Hi to all, Ihave a problem with erasing flash on nRF51422 Evaluation Kit. When i click on Erase all button in nRFGo Studio everything is looking normal ( segger led is blinking, no errors in nRFGo Studio), and i receive "Erase completed" in Log. When i am trying to program flash with any hex i receive error " Application C:/***/s310_nrf51422_1.0.0-2.alpha_softdevice.hex programming failed: An error condition was detected in NRFJPRG DLL". After earasing chip i can see that Region 0 was not removed, there is old FW in flash. Hw to fix it?? I am using Windows 7 x64

[Håkon Alseth]

Hi,

Can you post the chip markings on your nRF51422 device?

Older revisions of the chip have the ANT stack pre-programmed from our production line, and this cannot be removed. The never revisions are delivered blank, as the S210 and S310 are now delivered as .hex files that can be downloaded from our web site.

Please see this document for more information: www.nordicsemi.com/.../12630269

Best regards Håkon

[Kuba]

Thanks for response, Chip marking is QFAAC0. Regards Kuba

[Håkon Alseth]

Hi Kuba,

That revision of the chip has the ANT stack preprogrammed, and cannot be erased. You need to obtain a nRF51422 revision QFAAD0/E0.

Best regards Håkon

[Kuba]

Thanks for help!! Best regards Kuba