Xperia Z5 compact-fingerprint scanner and charger

[CompactyZ5]

Hi i have the phone and i like it. The problem is that the fingerprint scanner doesn't work with my finger because it's small. I tried it with a bigger hand and it works very good but with mine is very hard. What can i do?

Also the phone charges slow. I know that supports fast charging but the the fast charger doesn't come in the box, right? Mine is 5V/1500A. So i have to buy a fast charger separately?

[Uliwooly]

@CompactyZ5

You need to buy a Quick Charger 2.0 

[CameronT]

Hi @CompactyZ5,

Welcome to the community.

Try these methods one after the other. Verify whether the problem was solved after each method, before trying the next one.

• To unlock the device, simply touch the power key with a finger that you have registered as a fingerprint. After you press the power key to wake up your device, do not press it again. If you do, your device will return to standby.
• Check if the fingerprint sensor recognizes your finger by looking for the message “Try again” at the bottom of the screen when you touch the power key.  If you don’t see the message, make sure that both your finger and the power key are clean and dry. Use a clean, dry cloth to wipe off any dirt or moisture from your finger and the power key before trying again.
• Restart your phone and register your fingerprint again.
• Unlock your device with your backup PIN or password. Using the Fingerprint Manager, delete all the registered fingerprints and register your fingerprint again.
• Any dents and scratches on, or near, the fingerprint sensor in the power key may decrease the recognition rate of the fingerprint function.
• Make sure that no protective cover or case blocks the fingerprint sensor located in the power key.

Here's some tips to help improve the registration of your fingerprint:

• Dirt or moisture on your finger or the power key during the registration of your fingerprint can affect the sensor’s ability to later recognize your fingerprint. 
• Use a clean, dry cloth to wipe off any dirt or moisture from your finger and the power key before registering your fingerprint.
• Using the Fingerprint Manager, you can register a fingerprint up to five times to improve the recognition rate of the fingerprint sensor.  
• Make sure that you do not only register the center area of your fingerprint. Between each vibration of the power key during the registration process, move your finger slightly upwards, downwards and sideways to include a wider area of your fingerprint in the registration.
• The condition of your skin, such as cuts, dryness, or moisture may have an effect on the fingerprint recognition rate.
• Any activity that may affect the state of your skin, such as showering, cooking or exercise, can have an effect on the fingerprint recognition rate.
• Any dents and scratches on, or near, the fingerprint sensor in the power key may decrease the recognition rate of the fingerprint function.