My camera makes the "fan-like" noise - very quiet, but it's there all the time. I've always assumed they all make that noise - maybe I'm wrong?

For me it sounds like a blippy digital noise. Very brief. I've reset my cam and the sound is still present but quieter than before!!! First time i heard it, it was loud and clear. It seems to work as usual but have way of verifying that. And i wouldn't want it to crash on me on an important shoot or once the warranty runs out. Wish i had a way of checking before i send it to panny. A second cam would be awesome or a mate with a gh2 so i could compare sounds when powering up but that isn't the case :-(I really can't be fucked to send it for repair if there is nothing wrong with it more money down the drain having it sent and posted back. I do not need the GH2 right now but you never know when work is going to turn up. This fucking sucks dont know what to do

@driftwood thx man at least that's reassuring i don't want to fork out fork out money for a repair whilst i'm still under warranty. I'm going to send it asap and hope i get it back before the 18th :-)

Hi @htinla the lensed use was the 14 to 140mm. It makes the electronic blippy sounds with or without the lens and with or without the O.I.S @cbranding suggested that "ultrasonic sensor vibrator is stuck on. Either that or the lens's stabilizer has gone nuts" either way i'm going to take nick's advice and rename the firmware and send it to panny. I booked a repair service and will be sending my camera tomorrow. I'll let you guys know what the issue was when i get updated from Panasonic. In the mean time I'm going to take my old Pentax and Nikon film camera and go shooting with these... Need to see if i can get access to my mates darkroom otherwise it will be way to pricey, Nick suggested it shouldn't take no more than 14 days for a repair until then i'm kinda stuck for video...

I just had this same weird electronic sound on power up of my GH2.

Performing a sensor clean on the camera makes the exact sound.

So glad to hear about sounds, or should I say the "shake, rattle, and roll sounds" the GH2 can make. 3 other guys I know in Melbourne have rattles in their GH2's, not to mention audio glitches when switching recording on and off sometimes . Anyway my 3 rattles are, 1. The strap and lugs gave 2 distinct rattles. 2. the kit lens 14-42 rattles when turned greater than 90 degress. 3. The gh2 body rattles when the lense is removed and turned more than 90 degress. Not sure what other people have experienced, and not sure if other panasonic lenses do the same. I'm sure there is a reason. Cheers.