Cannot read the JLink version number

[paragon]

Hi,

i tried to update the firmware of nRF51-DK but it crashed and now Keil uVision says "Cannot find the JLink version number"

Its also not showing in the nRFgo studio

[michaelm]

Does anything show up in Device Manager?

[paragon]

yes when i hold the reset button and attach it through usb i can see it as Bootloader

[Stian Røed Hafskjold]

Try to hold down the reset button while powering up the board. Now in BOOTLOADER mode, drag the J-Link firmware over to the drive.

You can download the firmware from here: www.nordicsemi.com/.../nRF51-DK. It is the "J-Link Interface MCU Firmware for nRF51-DK" download.

You can also check out this thread: devzone.nordicsemi.com/.../

[paragon]

it crashes and usb shows warning that it was not removed safely after i drag the file.

[Stian Røed Hafskjold]

Does in show up as "JLink" in Device Manager?