# Hardware test menus

```
Date: Tue, 05 May 2015 00:26:13 +0200                                                               
From: sturmflut 
To: ubuntu-phone 

today I discovered a "hidden" Factory Mode in the bq Aquaris E4.5 Ubuntu
Edition. It can be accessed the following way:


- Power off the device

- Press the POWER and VOLUME DOWN buttons for more than ten seconds. The
device will boot while you are pressing the buttons, so keep pressing.


In short it offers tests for all of the device's hardware components,
including cameras, Bluetooth, GPS, FM Radio etc. As far as I know this
mode is only available on devices manufactured by HTC, such as the
Aquaris E4.5 (krillin), and not on other devices such as the Meizu MX4.

I documented my findings at [1]. Would be great if somebody could fill
in the blanks, e.g. the necessary environment for the WiFi test
http://sturmflut.github.io/ubuntu/bq/2015/05/04/hacking-the-bq-part-2-factory-mode/
```

Last updated: Sat Oct 17 15:35:27 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/chapter19.md?ask=<question>
```

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.
