The sound is very worst humming sound is produced when the connected to the port I was worked on my newly phone it was problem with the initial installation.So this problem is faced by many. this will be my last transaction with Samsung. who ever released this phone to the market should be behind bars.Samsung should refund us or just collect their suit and keep it.
But the sim is made in china.the phone have low sensitivity especially when gingers are a little sweaty this is the first most foolish I have seen with the feature how can a smartphone fail to sense on its screen while a little sweaty and in fact it contains the worst operating system please ban this phone Samsung quit joking while bringing useless phones to the market this is pure nonsense bought this phone two months ago and it has failed to download watt app I have heard several people raising complains about the same.to me samsungZ2 is out to con customers.these fake phones should be removed out of the market.