This is a frustrating situation, but there are a few approaches you can try to exit Assistive Access:
1. Try the Assistive Access exit passcode — it may be different from the regular iPad passcode. When Assistive Access was set up on the original iPad, a separate 4-digit exit passcode may have been created. Try common PINs or any passcode you may have used previously.
2. Triple-click the Side button (or Home button) — On some iPads, triple-clicking the Side or Home button will prompt you with accessibility options. From there, select "Exit Assistive Access" and enter the passcode.
3. Use Recovery Mode to restore the iPad — If you cannot recall the Assistive Access passcode:
- Connect the iPad to a Mac or PC
- Put the iPad into Recovery Mode (press and quickly release Volume Up, press and quickly release Volume Down, then hold the Top button until the recovery screen appears)
- In Finder or iTunes, choose "Restore iPad"
- This will erase the device and allow a fresh setup
4. Contact Apple Support — If recovery mode restore is not an option, Apple Support may be able to assist with a supervised unlock if the device is linked to an Apple ID.
Note: Unfortunately there is no "Forgot Passcode" option within Assistive Access itself, so recovery mode is typically the most reliable path when the exit passcode is unknown.