Critical Issue: nRF52-DK, PCA10040 3.0.0 2022.14. Programmer v3.0.3 can not erase and Keil can not identify board and J-LINK Interface.

Question

Dear Nordic support team, 
 
 I bought 3 piece of nRF52-DK from MOUSER, 1 piece of nRF52-DK version is 2.1.0 , and another 2 piece version is 3.0.0. 
 nRF52-DK version 2.1.0, Programmer and Keil test ok. 
 nRF52 DK, PCA10040 3.0.0 2022.14. Programmer v3.0.3 can not erase and identify board, why?

Keil5 MDK v5.25.2.0, Debug -> Cannot find any J-LINK ??

Thanks, 
 Lishen

LishenTung · Accepted Answer

Hi ccattuto, 
 
 nRF52832 SoC version is Rev3 on nRF52 DK v3.0.0, this SoC new function is auto protect if power reset. So this problem only exist on nRF52832 SoC Rev3. 
 
 Thanks, 
 Lishen

LishenTung · Answer

Good news, 
 I download J-link new software manually from SEGGER website, and Keil 5 identify J-LINK OB now. 
 So I found that Programmer v3.0.3 will always lock nRF52832. But nRFgo Studio lock or unlock selection by User define. 
 Thanks, 
 Lishen

Critical Issue: nRF52-DK, PCA10040 3.0.0 2022.14. Programmer v3.0.3 can not erase and Keil can not identify board and J-LINK Interface.

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