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One thought on “iMac Typing Random Characters By Itself Even After Replacing Wireless Keyboard”

  1. This sounds like the result of RF interference.

    I’ve had my iMac Bluetooth keyboard type endless random strings of characters after the computer “wakes.” Rejoining the keyboard fixes this, but it seems to be a preventable problem if you figure out what is causing the interference. I’ve noticed that a nearby Microsoft Surface Book disrupts not only the keyboard but Bluetooth audio connections. Running a microwave nearby often jams BT signals too.

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