I tried:
- changing USB cables and ports (no any improvement)
- instructions from this link
devzone.nordicsemi.com/.../nrf52-dk-does-not-show-as-a-removeable-drive-in-windows-file-explorer
SEGGER J-Link Commander V6.54a (Compiled Oct 31 2019 17:44:41)
DLL version V6.54a, compiled Oct 31 2019 17:43:50
Connecting to J-Link via USB...O.K.
Firmware: J-Link OB-SAM3U128-V2-NordicSemi compiled Jan 21 2020 17:30:48
Hardware version: V1.00
S/N: 682621334
VTref=3.300V
Type "connect" to establish a target connection, '?' for help
J-Link>msdenable
Probe configured successfully.
J-Link>msdenable
Probe configured successfully.
J-Link>msdenable
Probe configured successfully.
J-Link>
Trigger nrf52 DK power Of/On:
Start a Windows Explorer - still don't see any JLINK external drive
if repeat msdenable from the same instance J-Link form before, get those errors:
J-Link>msdenable
Failed to read config area of connected probe.
J-Link>msdenable
Failed to read config area of connected probe.
J-Link>
No sure when JLINK dissappers (may be when Segger ES ask me to update the firmware with some of the new installation) , but 2019 it was working fine.
Any suggestion how to fix this issue or at least trace where the problem comes from?
Thanks
