My friend bought this phone, i guess it's a chinese version of an Samsung Galaxy S5. He was testing it and the phone doesn't even bring the Google Play Store. I tried to installed manually but as soon as it opens it closes itself. I then proceed to check his android account but found that there was none on the phone and it didn't even asked for one. We factory reseted the phone and it still didn't asked for a google account.
I went to the settings to try and upgrade its android version but found no upgrade button.
Anyone got any ideas?
Thanks in advance
PS: Here's an pic of the "about the phone"