Chosen Solution
Like the questions says.. My scroll wheel has come loose
Try following this guide to open up your mouse.
in the answer provided by @arthurshi , I want to add three points: In the picture, 4 notches were already highlighted with blue circles, but these 4 do not get locked. There are 3 more notches, in green, which gets locked when mouse is closed.
- There is a hole provided to insert a pin/screw driver, in green down arrow, & gently press the lever to the left, 1st yellow direction. With this the lower portion of mouse will get detached.
- then, we have to genlty slide the lower case to forward, 2nd yellow direction. For some reason this direction was wrongly mentioned in original answer.
- Reverse process should be followed to lock the top two notches while assembling the mouse.