# Flashing the device Hopefully not needed ever... says: For production Ubuntu Phone devices, adb has been disabled in recovery, and this affects ubuntu-device-flash operation. You must supply a recovery image with adb enabled, which ubuntu-device-flash will use temporarily while doing its work: For BQ Aquaris E4.5 Ubuntu Edition (aka krillin), use recovery-krillin.img () For BQ Aquaris E5 Ubuntu Edition (aka vegetahd), use recovery-vegetahd.img ubuntu-device-flash can then be supplied with the --recovery-image argument, eg: ``` $ ubuntu-device-flash touch --channel ubuntu-touch/stable/bq-aquaris.en \ --bootstrap --recovery-image path/to/downloaded/recovery.img ``` Note that when the command prompts you with: Expecting the device to be in the bootloader... waiting You can put a Aquaris E4.5 and Aquaris E5 in the 'bootloader' by holding down Power + Volume Up for a few seconds, releasing the Power button when the red LED lights as the machine reboots, and then selecting 'fastboot' from the device's boot menu. unknown flag \`recovery-image' If you get this error, that means you are still using an older version of ubuntu-device-flash. Please install the latest version using the ppa: ``` $ sudo add-apt-repository ppa:phablet-team/tools $ sudo apt-get update; sudo apt-get upgrade ``` Last updated: Sat Oct 17 16:11:03 CEST 2015 --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://guru-1.gitbook.io/bq-aquaris-e-4-5-ubuntu-phone/en/chapter26.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.