How to Reset a Master Lock Backpack Lock
- 1). Enter the current combination on the backpack lock.
- 2). Press the locking shackle in as if you were opening the lock. Hold the shackle in place.
- 3). Rotate the three number dials to the desired new combination.
- 4). Release the locking shackle so it closes.
- 5). Twist the number dials so the new combination is no longer showing. The lock is now reset with the new combination.
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