Head on this page.
Text begins from here.
Please note that a camera body is required in order to update any Four Thirds lenses.
(including Micro Four Thirds lenses), while camera body can be updated without lens.
Step 1.Preparation of update program
Step 2.Procedure for camera body and lens update
Step 3.Procedure for interface unit update
Copy the firmware file ( [xxxxxxxx.bin] or [xxxxxxxx.lin] or [xxxxxxxx.ebn] ) to the SD Memory Card.
* Do not copy 2 or more firmware files ( [xxxxxxxx.bin] or [xxxxxxxx.lin] or [xxxxxxxx.ebn] ) to the same SD Memory Card.
Firmware update may fail if 2 or more firmware files are saved in the SD Memory Card.
Check if the camera is turned off.