Di seguito vi riporto una breve guida, in inglese, per accedere ed interpretare il menù segreto della Olympus E-M5:
With the power off, hold down the Menu button as you move the Power Switch to On.
-Continue holding the Menu button until the display appears.
-Press the MENU button.
-Navigate to the SETUP menu, and pick the monitor brightness adjustment (third item).
-Press the Right button, then press OK.
-You'll see a screen showing
-Press the following sequence of buttons: Up, Down, Left, Right, followed by pressing the shutter release, followed once more by pressing Up.
-There are four pages in the diagnostics, which are reached by Up (page 1), Right (page 2), Down (page 3), Left (page D). Yeah, it didn't make a lot of sense to me either until I realized that someone was too lazy to code a navigation method: they just assigned the four pages to four buttons.
The first page lists critical information about CPU, memory, and firmware status:
-U = Main user CPU area
-B = boot area
-L = four digit firmware number
-F = four digit flash firmware number
On the second page you'll find a number of pieces of information:
-R = shutter release count
-S = flash use count
-C = cleaning mode count
-U = ultrasonic cleanings count (typical number of power cycles)
-V = Live View count (not used on E-M5)
-B = shots using in-body stabilization
On the third page you'll find:
-CS = camera's serial number
-MCS = CPU code and serial number (model #, year, number; on my camera model 4138, 204 for March 2012)
Page 4 lists error codes that the camera has encountered.
Turn the camera off to leave the diagnostics.