What we know so far: A growing number of Pixel owners say the September 2026 update has left them unable to unlock their phones, even when they enter the correct PIN or pattern. The problem appears to be in the lock screen itself. Some users say their pattern resets after they connect one or two dots, making it impossible to finish the gesture. Others report that the phone reads the first digit of a PIN as a complete entry, then immediately says the PIN is wrong. The result is the same in both cases: owners are locked out of their phones.
Reports have surfaced from users of the Pixel 10 Pro XL, Pixel 8a and Pixel 8 Pro, along with other models in Google's Pixel lineup. The mix of newer and older phones suggests the issue may be tied to software shared across the devices, rather than a hardware problem in one model.
That is what makes the bug more serious than a routine update problem. The lock screen is not just another part of the interface. It controls access to the phone and the data stored on it. If Android cannot properly register a PIN or unlock pattern, users may be shut out of photos, messages, files, apps and other information stored on the device.
One Pixel 10 Pro XL owner tried several ways to regain access. They restarted the phone, entered Safe Mode, cleaned the screen, connected a USB mouse and reinstalled the same Android build. None of those steps worked. The phone was eventually factory reset.
A reset may get the phone working again, but it comes with an obvious downside: it erases local data. That makes it a last resort, especially for people who do not have recent backups. Photos, downloads, app data and other files could be lost if they are not stored in the cloud or copied to another device.
Pixel 10 Pro XL – Can't unlock phone after September update (pattern resets after 2 dots)
by u/go6ka in GooglePixel
The reports also show why lock-screen bugs are difficult to troubleshoot. A phone might appear to be working normally in every other way. The display may respond to taps, and the user may know the correct PIN or pattern. But if the software handling the input is broken, the device may never receive the full credential in the form needed to unlock it.
Safe Mode can be useful when a third-party app is causing trouble, but it is less likely to help if the issue is part of the system update. Reinstalling the same build may not change anything either if the defect is in that version of Android. Using a mouse can help rule out a damaged display or touch-input problem, but it will not fix a lock-screen process that is misreading valid entries.
Google has not publicly confirmed the problem or announced a fix. It is also not clear how many users are affected, whether the issue is tied to a specific version of the update, or whether it appears only under certain security settings or device conditions.
For now, affected users should avoid a factory reset until they have checked for backups on another device or through their Google account. Contacting Google Pixel Support before wiping the phone may also be worthwhile, particularly if the company is gathering reports from users to identify the cause.