Samsung's new high-tech fingerprint reader on the latest Galaxy smartphones has a major flaw: It can be fooled by the residue left by your fingers on a screen protector.The company is warning ...

(CNN) -- Samsung's new high-tech fingerprint reader on the latest Galaxy smartphones has a major flaw: It can be fooled by the residue left by your fingers on a screen protector. The company is ...

If you have an iPhone or another smartphone with scratches on the display, there is now a way to remove these scratches using a new machine. Most of the smartphones on the market today are designed to ...