It appears that only Nokia 9 PureView handsets will be affected. A Nokia 9 PureView buggy update seemed to affect the in-screen fingerprint scanner of the smartophone model, which can now be bypassed with unregistered fingerprints or even with a bunch of gum as banale.Many users complained about this issue during the past weekend[1, 2], after an OS update (v4.22) was installed, which appeared on April 18[ 1, 2].
The update was intended to improve the telephone’s fingerprint scanner module–so users won’t have too hard to press their fingers on the screen in the first place before the phone unlocks.
While the reported issues first appeared to be new, the same problem was shown by a video recorded by another user (unlocking phones with unregistered fingerprints), even before the v4.22 update, which means that the update only made the unlocking bug worse. This means that if the defective V4.22 firmware update is rolling back or if you wait for V4.21, the fingerprint scanner problems will not be resolved, since the scanner seemed pretty high in false negatives even before this patch, allowing strangers to bypass the screen block.
Video of the fingerprint sensor unlocking phone with a packet of chewing gum and someone else’s finger pic.twitter.com/jwY4ZG7uCh
— Decoded Pixel (@decodedpixel) 21 April 2019
A representative from Nokia did not return a request for comment most likely due to a prolonged Easter vacation. It is unclear how long Nokia would take to make a correct fix. In the meantime, it is advised that users are moved to another authentication mode, such as facial recognition, PIN code or password. Nor is this incident the first problem firmware update for Nokia.Last month, Nokia shipped a firmware update to Nokia 7 Plus that collected and sent user data to a China-based server. At the time, Nokia said that the component data collection was designed for the Chinese market (in accordance with local data collection legislation) and was accidentally included as part of a firmware version for EU users.
Image is take from the video from Decoded pixel