Software Fix Improves Galaxy S20 In-display Fingerprint Scanner Performance

Samsung Review AM AH 10

The Samsung Galaxy S20 in-display fingerprint scanner is the same as Galaxy S10’s. And, it will be an understatement to say that this is pretty disappointing. According to the tipster Ice universe, the company has rolled out an update to improve the fingerprint reader’s performance.

Per the leaker, the Chinese variants have now started receiving the TD1 firmware. Well, Samsung did the same with the Galaxy S10 and it didn’t exactly improve the performance of the scanner a lot.

However, it seems this time around the upgrade has appreciably boosted the functionality. Ice says that the firmware has improved the fingerprint recognition experience significantly. They also say that the update has changed the fingerprint entry logic.


In all, the tipster believes that this update will not let the users down. Of course, we will have to wait for more reviews to see if that really is the case. That said, Ice is a venerated name in the industry and thus, we believe that this update is the one to look forward to.

Samsung continues to stick with ultrasonic sensors

At a time when most OEMs were opting for optical sensors because of their affordability, Samsung went for Qualcomm’s ultrasonic in-display fingerprint read. The ultrasonic variety was said to have an edge over its optical counterpart. That’s because it uses ultrasonic waves to read fingerprints in 3D.

By that logic, it should have been faster, more reliable, and secure. However, when the tech was put to test, it didn’t live up to the hype. In fact, the cheaper optical sensors fared better.


It got so bad that people were able to game the scanners of flagship Samsung devices after a security flaw was discovered. As a result, many financial institutions banned the fingerprint sign-in feature on the Galaxy S10 and Galaxy Note 10.

Samsung did fix the issue with an update but the whole fiasco dealt a major blow to its image. What added fuel to fire was the rumor that the chaebol went ahead with the tech even though it was aware that it wasn’t ready for prime time.

The whole episode also fueled speculations that for the Galaxy S20 in-display fingerprint scanner, the company will part ways with Qualcomm. It was reported that the manufacturer will instead source optical scanners from fellow Korean firms.


Later on, in December 2019, Qualcomm introduced its second-generation ultrasonic sensor, the 3D Sonic Max. The chipmaker claims that it is a massive improvement over the original in-display fingerprint reader.

Galaxy S20 in-display fingerprint scanner is a minor improvement over S10’s

Samsung was then expected to use the newer iteration for its the Galaxy S20. However, that didn’t happen. Even though the Galaxy S20 in-display fingerprint scanner hardware is the same as the Galaxy S10’s, there are some minor improvements.

As a result of these software side improvements, the sensor is a tad bit faster and more reliable. The scanner has also been moved upwards, and the new placement is more ergonomic.


But overall, it’s not a massive improvement over the previous generation. Hopefully, Samsung will roll out the Galaxy S20 in-display fingerprint scanner update to more models soon to address the issues.