# OTA bootloader Updates for RP2350s

**URL:** https://discuss.blues.com/t/ota-bootloader-updates-for-rp2350s/3508
**Category:** Uncategorized
**Created:** [March 24, 2026, 1:09am UTC](https://discuss.blues.com/t/ota-bootloader-updates-for-rp2350s/3508 "2026-03-24T01:09:05Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![bkauf](https://avatars.discourse-cdn.com/v4/letter/b/b4bc9f/32.png) [@bkauf](https://discuss.blues.com/u/bkauf)
#### Post date: [March 24, 2026, 1:09am UTC](https://discuss.blues.com/t/ota-bootloader-updates-for-rp2350s/3508/1 "2026-03-24T01:09:05Z")

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Do you support Notecard Outboard Firmware Update for RP2350-based hosts? If not, what is the recommended approach for OTA firmware updates on an RP2354A host using the NoteCard?

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### Author: ![tjvantoll](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/tjvantoll/32/231_2.png) [@tjvantoll](https://discuss.blues.com/u/tjvantoll)
#### Post date: [March 24, 2026, 12:56pm UTC](https://discuss.blues.com/t/ota-bootloader-updates-for-rp2350s/3508/3 "2026-03-24T12:56:13Z")

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Hey @bkauf,

We don’t support it out of the box like we do with ESP32- and STM32-based hosts, but if you use MCUboot it could be possible.

What is your firmware written with? That’ll help us know whether MCUboot is an option or not.

TJ

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### Author: ![bkauf](https://avatars.discourse-cdn.com/v4/letter/b/b4bc9f/32.png) [@bkauf](https://discuss.blues.com/u/bkauf)
#### Post date: [March 24, 2026, 1:07pm UTC](https://discuss.blues.com/t/ota-bootloader-updates-for-rp2350s/3508/4 "2026-03-24T13:07:31Z")

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Hello, the firmware is micropython.

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### Author: ![tjvantoll](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/tjvantoll/32/231_2.png) [@tjvantoll](https://discuss.blues.com/u/tjvantoll)
#### Post date: [March 24, 2026, 2:45pm UTC](https://discuss.blues.com/t/ota-bootloader-updates-for-rp2350s/3508/5 "2026-03-24T14:45:24Z")

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Ok. In that case Notecard Outboard Firmware Update probably isn’t an option, as it requires some sort of boot/update integration on the host side.

There are ways you _could_ do some degree of firmware updating, but they’re all going to be manual and non trivial. This [older forum post](https://discuss.blues.com/t/esp32-dfu-micropython/128) talks through the approach that I think is most sane. It should be possible, but we unfortunately don’t have any examples and haven’t tried it ourselves.

TJ
