Keep configuration updated firmware？

[BG2EFX]

After each firmware update, some settings are lost and need to be reset. How to solve this problem

[VK3KYY]

After each firmware update, some settings are lost and need to be reset. How to solve this problem

This should not happen.

Only occasionally does the settings format change when the firmware version changes

Are you sure you are not holding SK2 when booting the radio, as this will reset the settings.