starcentral
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http://community.sony.com/t5/F5-F55/NEW-Firmware-update-v1-21-for-F5-and-F55/m-p/167015#U167015
We are releasing an unscheduled firmware update, v1.21. This update is to address important stability and other improvements. This update is for the F5, and F55 cameras, it is not for the AXS-R5 RAW recorder, of which v1.21 is already released.
We understand from this forum users are experiencing performance, stability issues with their cameras. In the vast majority of cases this is due to not performing the ALL RESET immediately following the firmware update. It is critical to perform this function or instability will occur. We are addressing the other instances where performance, stability is affected after ALL RESET has been performed.
<Functional Improvement>
1. Change setting menu of connected Remote Control Unit
2. Improve a connecting attestation for Remote Control Units
We improved time of an initial connecting attestation when connecting Remote Control Units.
3. Improvement
We fixed the bug that F55 and F5 cannot read "Clip Naming" menu setting from "All File" in SD card occasionally.
Other performance, stability improvements