Olympus OM-4 viewfinder issue

Hi everyone, I’m having a problem with my Olympus OM-4 and hoping someone might have some insight. I bought it from a garage sale when I walk along my local. When I got back home, I put fresh SR44 batteries in it and it working. But with some deep inspection, I found that: The LCD display reset and freezes whenever I cock the film advance lever although the light meter still works and the camera adjusts shutter speed correctly in Auto mode. I have tried to advance film while poiting at sun litted white wall and cover the lens with my hand, camera still adjust shutter speed to really low due to my hand covered the lens. In reserve, I also cover the lens with my hand and advance film, then I pointed to the wall and press shoot, again, camera adjusted shutter speed for (maybe) correct exposure of the wall. When not in state of cocked, LCD's working fine in both manual mode/auto mode and spot meter mode.
Has anyone experienced this before or know what might be causing it? Any suggestions or advice would be greatly appreciated!
This is video of my current state:
P/s: Sorry for low quality video. I have to use my foot to hold the phone.

marhalloweenvt said:

This is video of my current state: Video

Click to expand...

You may want to consider offering the video on a more common streaming platform. I tried to view it on the present location and it was really slow to load, and I expect several people on this forum will simply refuse to play content from a platform/server they're not familiar with.

koraks said:

You may want to consider offering the video on a more common streaming platform. I tried to view it on the present location and it was really slow to load, and I expect several people on this forum will simply refuse to play content from a platform/server they're not familiar with.

Click to expand...

Thank you for your recomendation. At the time, I have uploaded it to youtube and editted above.

Thanks, much appreciated!

Not sure what you meant by 'viewfinder freeze'. I did watch the video.
What you might be witnessing is the fact that the OM-4 (and other models of Olympus OM film lineup) have TWO forms of metering built into them. There is one which is used prior to exposure, to provide initial measurement, and a second one when measures the light striking the focal plane at the time of exposure. So it might be that an intermittent connection interferes with the first form of metering, while the second form still functions properly (explaining why you hand covering the lens still results in lowered shutter speed).

wiltw said:

Not sure what you meant by 'viewfinder freeze'. I did watch the video.
What you might be witnessing is the fact that the OM-4 (and other models of Olympus OM film lineup) have TWO forms of metering built into them. There is one which is used prior to exposure, to provide initial measurement, and a second one when measures the light striking the focal plane at the time of exposure. So it might be that an intermittent connection interferes with the first form of metering, while the second form still functions properly (explaining why you hand covering the lens still results in lowered shutter speed).

Click to expand...

In OM4 viewfinder, there is a small LCD to display information like indicator of shutter speed, spot metering mode, highlight/shadow,.... When not cocked, this LCD works normal, it will indicate the shutter speed and change indicator depend on where I am poiting at. When I ever I cocked, this LCD will reset and freeze up, indicator will stand still even I point the camera into light source or cover the lens or press spot meter button or slide Memory button. But it still determine correct shutter speed based on where I point the lens at the time I press shutter button.

Quirky, but I think that is a fault, not normal behaviour. I suspect all that is needed is a thorough service of the camera; it is is, after all, going on 40+ years old! The OM4 was one of the very best cameras I owned and I was I think one of 18 people in line to get my first one in '83 (?) — unfortunatley destroyed (long with three lenses) in a cycle touring accident in Tasmania in 1985).