In one of the best video reviews for Tracker Mini that I’ve found the reviewer (cc: @Sineway) said that - at least his unit - has been prone to overheating, which he says is indicated by a horizontal line on the top of the screen:
Is he right? Is that what the line indicates?
I couldn’t find a word about it in the user manual 
Nope😊 your mini isn’t overheating, thats just the cpu usage meter. Nothing to worry about.
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Hey there @antic604! Just to be clear, I think I said it’s an indicator of CPU reaching its peak, so not overheating. Though technically they obviously correlate. 
Regarding exact percentages of CPU power being used, I don’t know exactly.
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Thanks! Have you memorized whole forum, or am I just clumsy about using the search

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