You need AppBox Pro™ V1.2.2.

Following step will guide you reset your passcode.

First step is backup your data.

If you don't need backup your data goto step 2.

Step 1: Backup your data.

tap "Settings" in the main icon screen.

Tap "Backup Data"

Tap "Backup to Server"

Step 2: Remove and install again AppBox Pro.

Remove AppBox Pro and install again.

You can install it from App Store.

Step 3: Restore data from your Backup.

If you don't have backup you don't need this step.

Launch AppBox Pro again.

Tap "Settings" in the main icon screen.

Tap "Data"

Tap "Restore from Server"

That's it.