Instead of booting into its most recent update, the tablet was running One UI 5.1.1 with the August 1, 2023 security patch, the same software it shipped with when it was first released.
Galaxy Tab A9+ Tablet Returned to Factory Software

Previous Issues Were Also Reported
This isn’t the first time the Galaxy Tab A9+ has been mentioned for unusual behavior. Earlier reports described a problem where some units displayed only a black-and-white screen despite having enough battery power. In those cases, users were advised to perform a forced restart by holding the Power and Volume Down buttons. The latest incident appears to be unrelated, but it adds another curious case involving Samsung’s budget tablet.

Key Points
- A Samsung Galaxy Tab A9+ remained powered off for four months.
- The tablet booted normally after being connected to a charger.
- It unexpectedly reverted to One UI 5.1.1.
- The installed security patch was dated August 1, 2023.
- Samsung has not explained why the rollback occurred.
- The Galaxy Tab A9+ was previously reported to have display issues on some units.
- There is currently no evidence that this affects all devices.
Likely an Isolated Case
At the moment, there is no evidence that this is a widespread problem affecting all Galaxy Tab A9+ devices. The tablet continued to function after powering on, despite running older software. It is possible that reinstalling the latest updates would restore the device to its current firmware, although Samsung has not commented on the incident. Unless more users report the same behavior, this appears to be an isolated case rather than a general software issue.

