my magic mouse doesn't turn on!

I had the same problem and tried new batteries, cleaning the contacts, and at that point I found one of the positive contacts was loose. I could push down one of the positive contacts with the tip of a pencil and it would move and click, where as the other one was unmovable. I placed a small piece of tin-foil into the round terminal hole on the loose contact and it works now.

I have read many of the posts, and if the LED is not green, your mouse is not powering on. It's not a software issue. I would try new batteries, clean the contacts, and check for loose contacts at the positive and negative terminals. The negative terminals are easy since they are spring loaded and easier to see and check. The positive terminals are tucked away and you need to gently push on them to see if they are loose. The positive terminals should not move when you gently push on them. You can add some tin foil into the loose positive terminal hole, or replace the mouse. I hope that helps.

My magic mouse would not turn on after inserting brand-new batteries. Cleaning the connectors work wonderfully! I used a Q-tip and a bit of rubbing alcohol.

Had this problem earlier on today. Couldn't have come at a worse time!.

In the end I found that the battery connectors were covered in corrosion, after a bit of rubbing with a cotton bud it worked perfectly.

Thanks to all who gave advice!

I had this problem with my mouse since yesterday. Cleaning the tips with alcohol helps and the mouse is working perfectly. I also had to turn the batteries in its slot in a circular motion a couple of times before it got fired up and ready to go. (maybe the alcohol was evaporating in the meanwhile that the connectors picked up the battery contact)

Thank you SO much for the advice.

Back to work in peace now.

So it seems that cleaning the connections solves the problem in some cases. I had the same problem this morning, batteries replaced and all the usual taking them out and putting them back in didnt work. I used a cotton bud with a dab of water on the end and just wiped each connector. Worked first time.

Just had the same problem, silver foil fixed it for me.

Thanks for the tip folks