JLink and NRF52840 ?

Dear Members,

I have a breakout board , NRF52840_breakout, there's a link on it www.infor-link.com

tried to connect with JLink, but can not talk with it, anyone has experiences ?

Error code :


PS C:\Program Files (x86)\Nordic Semiconductor\nrf5x\bin> .\nrfjprog -p
ERROR: Low voltage detected at the target. Please make sure the device is
ERROR: properly supplied.

PS C:\Program Files (x86)\Nordic Semiconductor\nrf5x\bin> .\nrfjprog -v
nrfjprog version: 8.5.0
JLinkARM.dll version: 5.12f

Does anyone have the schematic for this board ?

Thanks