Sony a7IV: B&H Photo / Amazon / Adorama Sony ZV-E1: B&H Photo / Amazon / Adorama Sony a7IV Firmware 2.01 Benefits and Improvements Download Here When updating from Ver. 1.01 or earlier, you need to update to Ver. 1.05 before proceeding with the Ver. 2.01 update. Only update to Ver. 2.01 after updating to Ver. 1.05. If you try to update to Ver. 2.01 without updating to Ver. 1.05, an error will occur and you will not be … Continue reading Sony a7IV Firmware 2.01 and ZV-E1 Firmware 1.02 Updates Released