How to flash Image file

I use the method below to build kenel and add my own driver ,but after I copy Image to my tx2.I find there is something wromg with my driver and Linux cannot startup. can I enter recovery mode and reflash the Image only ? the Jetpack install cost too long.

If you are concerned about losing data, then clone the rootfs, edit it on loopback, then reflash it with that edited clone. There is no way to get around this taking a lot of time.

Normally if you want to test kernels out you’d get a serial console cable…then add extra entries in extlinux.conf for picking a configuration at boot time via serial console. I don’t know of an easy way to put the original Image file back in place, especially not without serial console.