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Note 3 Knox reset
I got a slight problem here or well, It's my friends Note 3 now ( n9005 european ) .
I sold him the phone a week ago and after a few days the aux stopped working, the sound in the speakers work and he get a very low sound when he plugs into his speaker via aux but nothing through the earplugs.
He tried everything he have red on the internet , ( restarted it headphones in, reseted everything, tried different sound adapting apps and alot of other things ).
So, What I think the problem can be is that I rooted that phone like 6 months ago, then i unrooted it and installed a polish version of android 4.4 kitkat.
His problem seemed to start after he made an systemupdate on the phone, then it stopped working.
I can give it back to the store for warranty claim but Knox counter is 0x1 and i tried this How to Deknox Samsung Galaxy S3, S4, Note 2 & Note 3 | Techbeasts
guide but it didn't help.
As i write i download an other official 4.4.2 firmware ( the european one, since we live in sweden )
So, my questions are, Does anyone knows how to fix either the sound or the knox warranty counter.