Master Lock 5401 Code Change Instructions | Securikey
Master Lock 5401 Code Change Instructions | Securikey
5 months ago
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Sparrows on Instagram: "We put the classic Master Lock 5400 series combo box under the microscope and decoded it step-by-step. No force, no destruction—just technique. This video breaks down how the internal wheels behave, what to feel for, and how a simple decoding method can bypass most common combination lock boxes. If you’re learning lockpicking, physical security, or just want to understand how these mechanisms really work, this one’s for you. ⚠️ For educational and security testing only. A
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