Is there a time limit for the upgrade activity? Can configuration changes only be made once?
The limited-time upgrade activity time is from 10:00 on January 7, 2026, to 24:00 on January 10, 2026. Each order has exactly one upgrade opportunity. After upgrading to the new generation Xiaomi SU7 during the activity period, the original order will automatically become invalid and cannot be returned to the original order.