# \#debug-mcu

**URL:** https://forums.developer.nvidia.com/tag/debug-mcu/1112.md

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## [Is it possible to enter recovery mode via Debug MCU over a serial connection on the Orin Devkit](https://forums.developer.nvidia.com/t/is-it-possible-to-enter-recovery-mode-via-debug-mcu-over-a-serial-connection-on-the-orin-devkit/354219)

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**Author:** [@DynamicDolphin](https://forums.developer.nvidia.com/u/DynamicDolphin)\
**Replies:** 5\
**Last updated:** [December 21, 2025, 11:09pm UTC](https://forums.developer.nvidia.com/t/is-it-possible-to-enter-recovery-mode-via-debug-mcu-over-a-serial-connection-on-the-orin-devkit/354219 "2025-12-21T23:09:41Z")

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I have remote access to an Orin Devkit. Therefore, I am not able to physically actuate the buttons to get it to enter into recovery mode. I’m aware that I can execute sudo reboot forced-recovery if the devkit is proper…

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## [Customization of Jetson AGX Orin 64GB Developer Kit Board](https://forums.developer.nvidia.com/t/customization-of-jetson-agx-orin-64gb-developer-kit-board/330341)

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**Author:** [@prateekrkg](https://forums.developer.nvidia.com/u/prateekrkg)\
**Replies:** 1\
**Last updated:** [April 16, 2025, 8:00am UTC](https://forums.developer.nvidia.com/t/customization-of-jetson-agx-orin-64gb-developer-kit-board/330341 "2025-04-16T08:00:04Z")

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Hello, We are designing a custom carrier board for AGX ORIN. We are refering to your carrier card for this purpose and got stuck with few doubts. We want to ask you the purpose of using Debug MCU (ATSAMD21G16B-AU). Can w…

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## [Orin debug MCU on Orin EVB P3737\_A05 schematics](https://forums.developer.nvidia.com/t/orin-debug-mcu-on-orin-evb-p3737-a05-schematics/327995)

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**Author:** [@yoavt2](https://forums.developer.nvidia.com/u/yoavt2)\
**Replies:** 6\
**Last updated:** [March 26, 2025, 9:22am UTC](https://forums.developer.nvidia.com/t/orin-debug-mcu-on-orin-evb-p3737-a05-schematics/327995 "2025-03-26T09:22:25Z")

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Hello, I see that UART3 and UART2 are connected from the Orin to the ATSAMD21G16B-AU\_P3737 DEBUG MCU (U136, PA12, PA13, PA14, PA15). Is this necessary for debugging the Orin? Also, where can I download the code for the…