Fingerprint..

[Icon059]

My A31 no longer recognises my fingerprint and when I try to access its settings I get a pop saying my fingerprint censor needs to be calibrated.. 

What's the solution please?

[Ry-Galaxy]

This may be a hardware fault, I would suggest backing up your data & doing a factory reset to see if this resolves it.

If not, then you should send it off for repair, if your warranty has expired, it could potentially be a chargeable repair.

Hope this helps!

[BandOfBrothers]

@Icon059 

Maybe try these troubleshooting steps. 

• Clear Cache Files from the phone's System Partition Section  > https://www.samsung.com/uk/support/mobile-devices/how-do-i-clear-the-cache-on-my-device/ You may need to insert your earphones or hook upto a powered On Laptop or use a Tv's USB Port to access the Clear Partition Section. This may help with lag or stutters as this clears the phone of old/unused or broken cache files.There is also a Repair Apps option in the Menu System too { Possibly excluding the s²⁴ Series of phone's } 
• As a very last resort back up and factory reset. 

If i can be of any further help please don't hesitate to ask  😎