Sony released the new firmware update for the Sony A7IV:
Benefits and Improvements
- Fixes an issue where some products were unable to update to Ver. 6.00, as well as an issue where products that successfully updated to Ver. 6.00 would enter power save mode when the monitor was closed, regardless of the Power Save by Monitor setting. We apologize for any inconvenience this may have caused.
- This update also includes the improvements that were introduced in Ver. 6.00.