Google’s September Pixel Drop appears to have introduced lock screen problems for some users, with reports of phones rejecting valid PINs or resetting pattern unlock attempts before they are complete. Owners of Pixel 8a, Pixel 8 Pro and Pixel 10 Pro XL devices have described the issue, while users of several Pixel generations also report significant performance slowdowns after installing the update.

The reports remain user accounts rather than confirmation of a widespread defect, but the failures can prevent people from accessing their phones. Google’s official PixelCommunity support account has contacted affected users in the relevant discussions.

Pixel phones are rejecting valid unlock attempts

One Pixel 10 Pro XL owner said the phone reset a pattern unlock as soon as they tried to connect the second dot. Another owner with the same model encountered a similar problem but was able to recover by holding the Power and Volume Down buttons to force a restart.

A second Pixel 10 Pro XL user said the available troubleshooting steps did not work and that a factory reset was ultimately required. A factory reset erases the device, making the problem particularly disruptive for anyone without a recent backup.

The problem is not limited to pattern locks or Google’s newest reported model. A Pixel 8a owner said the phone displayed a “wrong PIN” message after the first digit was entered. A Pixel 8 Pro owner reported a similar behavior in the same wider set of discussions.

Why the lock screen bug is causing repeated lockouts

Based on the user reports, the lock screen may be processing input before the owner has finished entering a PIN or drawing a pattern. That could explain why a multi-digit PIN is rejected after its first number or why a pattern is cancelled almost immediately.

Because single-number PINs and one-segment patterns are not valid unlock methods, the reported behavior can create a cycle of failed attempts. After several unsuccessful unlocks, Android temporarily prevents additional attempts for a few minutes, adding another delay for affected users.

Performance complaints affect several Pixel generations

Separate reports about the September Pixel Drop describe phones becoming noticeably laggy after the update. The complaints include Pixel 6, Pixel 7, Pixel 8, Pixel 9 and Pixel 10 devices, suggesting that the performance reports are not confined to one model family.

Google has not been quoted as confirming the cause or announcing a corrected release in the available information. Until a fix is available, Pixel owners who have not installed the September Pixel Drop may want to wait, particularly if reliable access to the device is essential.

Anyone already affected should avoid repeated unlock attempts where possible, since additional failures can trigger longer temporary lockouts. A forced restart helped at least one Pixel 10 Pro XL owner, but the reports indicate that it is not a universal solution, and a factory reset may result in data loss.