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Dell 5548 Fan Speed Issue


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Hi everyone. I have dell 5548 i5 5200u version. Im using with mojave single os.


My fan run direct %100 speed and I can't control my fans. I tried some app but no fans detected. If I unplug my charger my fan not work or always work full speed. I tried reapply thermal paste.


My second problem is I can't update my os directly  in system preference.


Note:I changed serial number in my plist.


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I don't want update Catalina. Just want make security update for Mojave. I tried update kext and Clover but not solved my problem.



CPU: i5 5200u Broadwell
Graphics: Intel HD5500
Ram: 8gb DDR3
Ssd: Samsung Evo 860 500 gb
Wifi: Broadcom BCM94352z

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