I created a simple online tool too help you update your camera.
It keeps you in control of what firmware your cameras has. May is be a down and upgrade – with a downloaded firmware file it is easier and more secure to install than with the official updater!
It supports all the current OM-D models, most of the PEN series and the last Stylus. Basically every camera I could think of which a update was provided for. If your model is missing write me a short mail here. It also provides a number of questions regarding this process. Don’t tend to ask if yours is not answered.
A screenshot of the update tool
I will try to expend this as I can. All the possible coming hacked firmwares will be available.
This also replaces the old firmware update tool for Windows.