BQ

Based on the provided research context, there is insufficient information to write a description of a mobile phone manufacturer named BQ. The search results primarily reference B&Q, a British home improvement retailer, the becquerel (a unit of radioactivity), and a general disambiguation page that does not specify details about a mobile phone company. Consequently, no facts regarding the history, origins, or products of a mobile phone maker by this name can be confirmed from the given text.