After months of research I found this method (hard reset) to work well on my JVC GR-D70U. The first time I dissected the camera I unscrewed 20 plus screws because I didn’t know any better. I ended up unscrewing the LCD, and the lens which is not necessary. The “hard reset” method lasted for a few months before I had to do it again. This time around I made sure to unscrew only the screws necessary for this procedure. I took note of which screws I removed to make it easier for myself the next time around and so I can share this useful information with you all.
Wrap each screw with a Post It note. On the outside of the Post It note write where the screw belongs. After you are done unwrap the screws and put them back in their proper places. (If you have a better method please feel free to use it)
11 Screws Total:
1. Very Top Screw of the Camera (when looking at the camera with a birds
eye view/lens pointing away)
2. Top of camera Screw next to the W/T zoom knob (when looking at the
camera with a birds eye view/ lens pointing away)
3. Inside the battery slot Top Left corner screw (long screw)
4. Inside the battery slot Top Right corner screw (long screw)
5. Inside the battery slot Middle Left screw.
6. Screw next to the Firewire port (inside the LCD area)
7. Screw under the “Battery Release” Knob (when look at the bottom of the
camera lens facing down)
8. Screw to the Right of the SD Card Slot (when look at the bottom of the
camera lens facing down)
9. Above the Tri Pod hole LEFT Screw closer to the LCD (when look at the
bottom of the camera lens facing down)
10. Below the Tri Pod hole and Below that small black hole.. Screw to the left
closer to the LCD (when look at the bottom of the camera lens facing down)
11. Below the Tri Pod hole and Below that small black hole.. Screw closest to
the edge and closest to the speaker (when look at the bottom of the camera
lens facing down)
Total: 11 Screws.
After removing the Screws…
1. First remove the grey plastic piece on the very top of the camera. (Above the
2. Carefully separate the camera in half.
4. Look for the big White plug closest to the battery slot. (It is located on
the circuit board and it has a bunch of wires coming out of it)
5. Unplug it and wait for a few minuets. Then re-plug it. (At this point I
personally tried to put the battery in and turn the camera on to see if it
had worked. (i don't know this may be dangerous so be careful!!!)
6. Carefully bring the 2 camera sides back together and make sure you get a snug
fit. (The section by the speaker should snap in properly)
7. Put the grey piece back in its proper place.
8. Put the screws back into their proper places.