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    Acer 3935 Wifi / Bluetooth repeatedly turning off and on. SOLVED

    Discussion in 'Acer' started by Duane, Apr 24, 2013.

  1. Duane

    Duane Newbie

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    Acer 3935 Bluetooth Wifi problem solved. The problem was ventilation.

    The Wifi and Bluetooth switches work on a difference of temperature when you place your finger on them. The problem is the 3935 gets hot sometimes and ventilation around the temperature switches is poor. So under certain conditions the temperature switches turn themselves off and on again repeatedly.

    Having tried insulating tape and foam/foil under the temperature sensor switches; I also tried shielding from electro-magnetic radiation, neither method worked. Ventilation works.

    Step 1-Remove the Battery and the Multi-Media Touch Board

    Step 2-Take a pair of wirecutters and open up 2 small ventilation holes in the little vertical walls that are adjacent the battery chamber, underneath the Multi-Media board in the area of the Bluetooth/Wifi temperature switches. Thus you open up the area to airflow from the battery chamber. My holes are each about 1cm long, and the height of the tiny plastic wall. You need to cut through the plastic walls and the metal wall of the battery chamber simultaneously so you need good quality wirecutters.

    That's it, it's a simple fix.

    Obviously no manufacturer is going to tell you that this is a design flaw, neither will they tell you to take some wirecutters to the laptop! But it certainly solves the issue. The holes cannot be seen when you replace the Multi-Media board.

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