After getting really annoyed by random double-clicks on both left and right buttons I decided to try and fix the triggers myself. I found some similar posts on the internet but will show my experience anyway, because this is a bit more complicated mouse than others.
I will describe the process with pictures step by step. Sorry for my English, it's not my first language and it's 2 AM.
1. This is my mouse with tools I used - small "+" screwdriver, craft knife and tweezers.
2. Remove those screws, remember that the middle one is longer.
3. Carefully lift the top of the mouse for 1 cm, then pull it backwards, but remember - it is still attached to the mouse with thin cable ribbon, so don't try to pull it too hard!
4. Turn the top of the mouse around so you can access the cable ribbon connector. It has small handles on both ends as you see in image. If you have big fingers, try to use tweezers and gently lift it up a bit. It's not coming off, it will only get loose and free the cable ribbon, which will then pop out. When you assemble the mouse, do it in opposite order - loosen the plastic, slide in the cable, then press on the plastic evenly on both ends to jam cable in place.
5. Remove these two screws.
6. Now you should be able to remove secondary circuit board, however, it is attached to main board with cable ribbon (A1). Move it out of it's position, flip it over, and disconnect the cable just like in step 4.
7. Now, that you have disconnected secondary board from it's connector (A2) on main board, pull out all the other cables to free the main board.
8. Remove main board crews.
9. At this point, with a help of tweezers or screwdriver, take out the main board along with mouse wheel from the plastic body. Now you have access to both mouse triggers - black plastic boxes. Remove them with a thin screwdriver or knife blade, starting from bottom front edge and lifting it up. Like a hood of a car. Make sure not to lose the little white plastic thingy. Nothing is holding it, so it will fall out.
10. There is this copper spring, which you have to take a good look at. Study it's position to be able to put it back correctly later. It is small detail, and it will be very tricky.
11. When you have take the spring off, put in on flat surface, hold it down with a blade or something thin, and gently lift up the curved part. With time it has bent closer to the base and is causing your mouse clicks to require less force and distance, therefore causing double-clicks. Don't bend it too much and try not to do forward-backward motions, because you might break it.
12. Now it's time to assemble it back together. Most difficult part is the spring, rest of it is like disassembling, just backwards. In picture below I'll show my method of putting it back in.
About that black little plastic box and white piece of plastic - turn it upside down, put the white plastic piece in it's hole and mount it on the trigger upside down. Then it's good idea to test if it's actually working by pressing it. I could already feel the difference, clicking needed more travel and force.
Be very careful with those cable ribbons, especially with black thin ones - they are very fragile.
I hope this will help you!
I will describe the process with pictures step by step. Sorry for my English, it's not my first language and it's 2 AM.
1. This is my mouse with tools I used - small "+" screwdriver, craft knife and tweezers.
2. Remove those screws, remember that the middle one is longer.
3. Carefully lift the top of the mouse for 1 cm, then pull it backwards, but remember - it is still attached to the mouse with thin cable ribbon, so don't try to pull it too hard!
4. Turn the top of the mouse around so you can access the cable ribbon connector. It has small handles on both ends as you see in image. If you have big fingers, try to use tweezers and gently lift it up a bit. It's not coming off, it will only get loose and free the cable ribbon, which will then pop out. When you assemble the mouse, do it in opposite order - loosen the plastic, slide in the cable, then press on the plastic evenly on both ends to jam cable in place.
5. Remove these two screws.
6. Now you should be able to remove secondary circuit board, however, it is attached to main board with cable ribbon (A1). Move it out of it's position, flip it over, and disconnect the cable just like in step 4.
7. Now, that you have disconnected secondary board from it's connector (A2) on main board, pull out all the other cables to free the main board.
8. Remove main board crews.
9. At this point, with a help of tweezers or screwdriver, take out the main board along with mouse wheel from the plastic body. Now you have access to both mouse triggers - black plastic boxes. Remove them with a thin screwdriver or knife blade, starting from bottom front edge and lifting it up. Like a hood of a car. Make sure not to lose the little white plastic thingy. Nothing is holding it, so it will fall out.
10. There is this copper spring, which you have to take a good look at. Study it's position to be able to put it back correctly later. It is small detail, and it will be very tricky.
11. When you have take the spring off, put in on flat surface, hold it down with a blade or something thin, and gently lift up the curved part. With time it has bent closer to the base and is causing your mouse clicks to require less force and distance, therefore causing double-clicks. Don't bend it too much and try not to do forward-backward motions, because you might break it.
12. Now it's time to assemble it back together. Most difficult part is the spring, rest of it is like disassembling, just backwards. In picture below I'll show my method of putting it back in.
About that black little plastic box and white piece of plastic - turn it upside down, put the white plastic piece in it's hole and mount it on the trigger upside down. Then it's good idea to test if it's actually working by pressing it. I could already feel the difference, clicking needed more travel and force.
Be very careful with those cable ribbons, especially with black thin ones - they are very fragile.
I hope this will help you!
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