# Bootloader for OTA Updates

**URL:** <https://discuss.blues.com/t/bootloader-for-ota-updates/3491>\
**Category:** Firmware\
**Created:** [March 10, 2026, 3:40pm UTC](https://discuss.blues.com/t/bootloader-for-ota-updates/3491 "2026-03-10T15:40:19Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![RobLauer](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/roblauer/32/1567_2.png) [@RobLauer](https://discuss.blues.com/u/RobLauer)\
**Post date:** [March 10, 2026, 11:25pm UTC](https://discuss.blues.com/t/bootloader-for-ota-updates/3491/3 "2026-03-10T23:25:58Z")

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Hi @jbro and welcome to the Blues community!

Did you by any chance see this thread? At first glance it may help unblock you:

> [@Difficulty with mcuboot and nRF52840, can't leave bootloader mode](https://discuss.blues.com/t/difficulty-with-mcuboot-and-nrf52840-cant-leave-bootloader-mode/2179):
>
> Hi all, I’m using the Legacy Notecard Cellular on a Notecarrier-F, with an Adafruit nRF52840 Feather Express, developing with Nordic’s nRF Connect SDK in Visual Studio Code. I’m trying to get outboard DFU working, and am running into a problem where the board just goes into DFU mode all the time and will never run app code. Figuring I must be overlooking something, I decided to just try to get this example project working, straight out of git: I’m seeing the same symptom with this example a…

If not, just let me know.

Thanks,  
Rob

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