@linuxdev @kayccc thanks for replies. I tried same things on ubuntu 18.04 and I still get the same problem.
When it comes to buttons i follow instructions from skd manager and user gide:

| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| Unable to Flash Jetson AGX Xavier Platform | 7 | 3207 | December 21, 2021 | |
| Trouble Putting Jetson in Recovery Mode for Flashing | 7 | 2002 | March 28, 2023 | |
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| Problem flashing Jetson Xavier AGX to Jetpack 5 with SDK Manager | 4 | 930 | August 31, 2022 |
