unable to flash the DK board facing issue " Failed to Connect to Target. No idcode detected. Please check connections and Target interface Type.". Also tried to recover the board using the command line "nrfjprog –recover" but failed

[Onkar]

I am unable to flash the DK board facing issue " Failed to Connect to Target. No idcode detected. Please check connections and Target interface Type." 

DK Board Details: 

nRF52840-DK : PCA10056 : 1.1.0: 2019.22

Steps Performed:

1. Opened Segger Embedded Studio for ARM 

2.. File--> Open soultions--> Example-->ble_central_and_peripheral-->experimental-->ble_app_att_mtu_throughput-->pca10056-->s140-->ses-->ble_app_att_mtu_throughput_pca10056_s140.emProject 

3. After successfull loading the emProject, tried to Build & Debug 

4.After that i am facing these issue " Failed to Connect to Target. No idcode detected. Please check connections and Target interface Type."  

Later on, tried to recover the board by using the command line with the command  "nrfjprog –recover" but this also failed 

[Simon]

Check out the points given in this ticket:

• Have you done any current measurements recently? If that is the case, make sure to attach a jumper on connector P23?
• Have you installed the latest version of the nRF Command Line tools?
• Can you find the board in Device Manager?
• Is LED5 blinking?
• Could you test with another USB cable or a different USB port?

Best regards,

Simon

[Onkar]

Hello Simon,

I had uninstalled nRF Command Line tools & downloaded the latest version [Segger Embedded Studio for ARM V4.50] 

DK board was successfully flashed 

Regards,

Onkar