nrf9160 SES Jlink "No idcode detected."

Question

Hi, 
 I was doing some current measurements and tried to reconnect my DK to my computer to put a new program on it. When I try to Connect J-Link, I get an error that says "Failed to connect to target. No idcode detected. Please check connection and Target Interface Type". See my setup below: 
 
 I've tried nrfjprog --recover in console, and with the PROG/DEBUG switch in nrf91 I get JLinkARM DLL reported an error and it runs successfully when switched to nrf52. I am developing for nrf91. Here is the log.log: 
 log.log 
 Thank you.

MJD093 · Accepted Answer

10V! 
 That's your problem right there then. The absolute maximum rating for VDD is 5.5V, you will have blown something on the board by supplying that amount of voltage. 
 I hate to say it but you probably damaged the SiP itself with that. 
 Connecting to the nRF52 at least tells us the USB and IMCU circuits are alright to the SoC but with a supply of 10V to the SiPs main power line, connection to the SoC is to be expected I guess as it was isolated from that.

nrf9160 SES Jlink "No idcode detected."

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