XM122/XB122 FLASH WRITE TO MEMORY

[Myveck]

Hello, 

I am programming a XM122/XB122 with segger embeded studio, I carried out my tests by debugging the program and for a while I don't really know what I touched but when I want to flash my program I have an error message telling me that the write to fail, I have been on it for a long time already and I would like to have your opinion. You can see the image of the error message

[Kenneth]

Presuming this have worked previously, then the most common problem is that the nRESET pin of the nRF52840 is not pulled high. Try to measure the logic level of the nRESET pin and make sure it is logic high (e.g. by connecting P0.18 to VDD).