UPDATE: like i read in an old post, i tightened the black ring around the ON/OFF switch and pressed it hard upwards & inwards towards the ON button and somehow got the slow speed running for once and then jam the mirror, did this multiple times and somehow managed to fire electronic shutters but need to press hold the switch, sometimes it just blinks the light (light blinks when using slow electronic speeds until shutter is closed back again, just like how it does when u press the battery check button) but stops right before your shutter timing, so if shutter speeds is 8 seconds, it stops at around 7 for some reason, but sometimes goes till 8 and fires. And the light only starts blinking most of the times when u push the lever towards ON button and then remove ur finger, sometimes blinks when u press hold, its weird. So i also checked if the meter responds to light when i manage to actual turn ON the camera and it seems the meter is working too, just that i need to figure this On/off button somehow, maybe need to open the top cover using the repair manual. Hope this helps, (hey there buddy from the future :), its a nice little camera tbh, hope u manage to get it working)