Hi WayneWWW,
As per your suggestion in below link
https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/flashing.html#wwpID0E0HM0HA
We have done All 6 steps successfully. Now for 7th step we need to put device in recovery mode for that we followed below step as per this link reference.
- Jumper the J48 power select pin first and plug the power jack
- Jumper the recovery pin
- Jumper the reset pin
- Remove the jumper of reset pin
- Remove the jumper of recovery pin.
But it is not working.