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Hey Every time when i connect some headphones or a bluetooth speaker to my Smartphone it will start so sound weird. The music gets more quiet and the bass gets very strong and uncomforable. This Problem won´t go away if i change the phone, the headphones or the speaker will stay like that. i swichted my phone 2 times since this problem appeared, but nothing changed. This problem spreads like a virus and “infects” other phones to, if i connect the broken devices to them. Can someone help me?

I believe it is a driver issue, may be a hardware or even a connection issue. My speaker was quiet, fuzzy and only projected some things. Then when i connected the micro usb cable to my PC and reset some drivers it began to work. But you are using a phone. This is so weird and unusual no matter how much I search the darkest, deepest valleys of the web (duckduckgo) I can’t find anything. Your driver may be corrupted and whenever you connect a device it downloads or spreads the current driver. I don’t know but try these general steps ON ALL OF YOUR DEVICES if you can. https://support.apple.com/en-au/ht203794 Hope this helped