Unfortunately, the official samsuga position is different. I have sent some official inquiries in this topic and it turns out that some operators, e.g. play may have a record that you cannot upload branded software and that is why the official website for a fee should not change the brand on the phone from what I remember plus there are no such reservations (but I can confused because I have play and I was interested only in this operator). So much theory in practice of play sometimes released phones without a brand, but after a visit to the website, the phone returned with the brand loaded. In t-mobile I had s4 I gave back with a soft xeo after the warranty TPL returned but they had no reservations about the loaded XEO software. On the other hand, as for play, I'm afraid to try before I give away the guarantee I will just upload brand play and that's it

. A friend from samsung service says that they don't pay attention to it but in case of sending it back it may be different. Officially, the email I received from Samsung contains information that after uploading soft unbranded Samsung has a basis to cancel the warranty in the case of t-mmobile this problem does not simply return the phone with a soft TPL.