S71200 Password Unlock Work -

To avoid needing unlock work again:

Use this if you can go online but forgot the password to upload. s71200 password unlock work

Step 1: Power cycle the CPU. Step 2: Go online in TIA Portal. When prompted for the password, click Cancel. Step 3: Right-click the CPU in the project tree. Select "Online & Diagnostics". Step 4: Navigate to Functions > Reset to Factory Settings. Step 5: Check the box: To avoid needing unlock work again: Use this

Result: The CPU is now empty (like new). No password exists. You can now download a new program. Result: The CPU is now empty (like new)

If you own the machine and have proof of purchase, Siemens offers a formal "Password Unlock Work" process. This is the only method guaranteed not to void your warranty.

The Process:

Pros: 100% legal, safe, retains the program.
Cons: Slow (2–5 days typical), bureaucratic, requires proof of ownership.