Blue­tooth dis­con­nec­tions

Mac|Life - - ASK -

My Ap­ple Blue­tooth wire­less key­board and mouse ran­domly dis­con­nect and re­con­nect to my 12-inch MacBook (early 2015). My lo­cal Ge­nius Bar has been un­able to fix this despite re­plac­ing the MacBook’s moth­er­board. I can’t repli­cate the prob­lem us­ing the same key­board and mouse with an­other Mac. What’s wrong?

This is a not un­com­mon prob­lem in El Cap­i­tan and Sierra. A use­ful pre­lim­i­nary check is to dis­con­nect all other pe­riph­er­als apart from any wired network con­nec­tion, then start up with your key­board and mouse con­nected us­ing their charg­ing ca­bles, or us­ing wired key­board and mouse, hold­ing to en­ter Ap­ple Di­ag­nos­tics. En­sure your MacBook is well ven­ti­lated, to help keep it cool. Chances are that those tests will re­turn a nor­mal re­sult of “ADP000,” in­di­cat­ing that your Blue­tooth hard­ware is work­ing nor­mally, and no is­sues were de­tected with the key­board or mouse.

You should find Blue­tooth sig­nal prop­a­ga­tion best when your MacBook, key­board, and mouse are all on the same flat sur­face with­out in­ter­ven­ing ob­jects such as pa­per or china. It’s worth check­ing this, although it’s unlikely to be the cause of the prob­lem.

Re­main­ing Blue­tooth dropouts are then al­most cer­tainly the re­sult of these long-known problems in macOS, and hope­fully will one day be fixed in an up­date.

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