5. Steps to upgrade to 4K
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5.9.2 Service Door Tamper/Marriage Tamper Initiation
Erase the service door tamper and marriage tamper.
[1] Power on the projector.
[2] Erase the service door tamper and marriage tamper.
For the procedure, refer to “3.2 Recovering from Tamper Errors” (page 106).
5.9.3 Error Check
Check if there are no errors on the projector. Upgrade is completed if there is no error.
5.9.4 Digital Certification Registration
Once upgrading the projector is complete, the Digital Certification is registered.
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