# Documentation lacks a custom bootloader ## Problem environment The manufacturer documents methods to develop and use a custom bootloader to write firmware to the chip's flash storage. ## Steps to reproduce 1. Refer to documentation 1. Search for bootloader ## Expected result Developing and using a custom bootloader is documented. ## Actual result Documentation includes no reference to a custom bootloader. ## Resources The ASF project sample that allows firmware update over the air (FUOTA.) [https://ww1.microchip.com/downloads/en/DeviceDoc/SAM-R34-MLS-Getting-Started-Guide-DS50002812B.pdf](https://ww1.microchip.com/downloads/en/DeviceDoc/SAM-R34-MLS-Getting-Started-Guide-DS50002812B.pdf) ## Severity level This is **low priority** because project requirements do not mandate bootloader manipulation.