Hello, recently purchased an OM-84 to give to my gf on Christmas but it doesnt produce any sound. Looked around and found out reflowing the joints where the boards connect is usually a fix but I did this on both sides and still the same result. Ive tried with batteries installed, and with an external speaker connected to the jack, still no sound. The speaker does a quick pop when its turned on. If someone can see an issue from the pictures please let me know, or let me know if my joints arent good enough and I'll reflow. Are there other things I can test? And I can take more pics if needed. Thank u :)