VIAVI TestCenter:C1, C2, C50 and 400G Appliances using STC 5.13.9856 fail to run after upgrade

Knowledge Base - FAQ

Thursday, October 16, 2025

Question:

• In the event that your appliance is in an endless reboot cycle after an attempt to upgrade. • The procedure to upgrade does not work on all models, and downgrading to 5.09, 5.10 or 5.11 does not work, so it is best to wait for a later build to be posted.

Answer:

N/A

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