BQ phones are extinct in our country, but that does not mean that there are not many users with a brand terminal in their pockets. For months there is a bug that has been repeated a lot in some smartphones of the manufacturer and has to do with the impossibility of using the fingerprint after updating the phone.
This problem of the fingerprint sensor usually appears in the models of the BQ Aquaris X range after updating the phone to a new version of the operating system such as Android 8.0.1 Oreo . There are those who suffer it in an Aquaris X and who do it in the Pro model and it seems that it is a hardware problem that requires the telephone to be sent to the technical service. However we will try to solve it in other ways before having to do without the phone for a few days.
The fault with the fingerprint reader
The problem seems when, suddenly, the fingerprint reader stops working and does nothing when you put your finger on it. Worst of all, after the update, the fingerprint configuration options disappear from the terminal settings and, logically, without them it is possible to add new biometric data.
Some suggest that the problem is related to the battery of the mobile because after updating and discharging the battery, they realize that the fingerprint sensor does not work. Restarting and charging the phone again can use the fingerprint reader again but, unfortunately, as soon as the battery level drops, the sensor failures reappear.
Possible solutions
If the fingerprint sensor of your BQ mobile phone does not work, the first thing you have to check is that you have the mobile updated to the latest software version available (some say that Android 8.1 Oreo has solved the fault). If after that the problem persists, you should try to restore the factory settings. Although many users claim that this has not solved anything, it may not be your case. and if the incidence still persists.
This will delete the data of the mobile so before doing so you must make a backup and keep all the contents of your mobile safe. When you do, follow the path Settings> System> Recovery options> Clear all data (recover factory data).
If after formatting your phone and charging the battery to the maximum it is still impossible for you to use the fingerprint reader on your BQ Aquaris X / X Pro , the support forum itself recommends sending the mobile to the SAT, so you should contact the company from this website .
Source>BQ
