If you've forgotten your iPad 2's passcode and can't access it, iRemove Tools could potentially help bypass this lock, allowing you to regain access to your device.
: Because it is tethered, you must keep the tool handy in case the battery dies or the device restarts. Hardware Requirements
Searching for is a common quest for those trying to revive a classic tablet. While the tool is effective for bypassing the lock on older hardware, proceed with caution regarding malware and potential functionality limitations.