GE Vivid T8 Basic Service Manual page 262

Replacement Procedures
8-4-8-2 Rewrite the Serial Number
8-34
If selected to load the complete disk during the software loading
process, when powering the system, the system will indicate to
rewrite the serial number.
Vivid T8/Vivid T8 Pro – Basic Service Manual
5718826-100 English Rev. 10