Samsung Galaxy s8 + how to distinguish the original from fakes?

Hello, I stand before buying a phone at a very favorable price. The phone was supposedly taken on the net. The seller says that he can show me insurance screens additionally claims that he did not register the Samsung guard.
How can I check if the phone is original? Can I verify it after imei?

If the guy has proof of purchase, what's the problem? The more I wonder what kind of transaction, auction, from hand to hand ?? Do you know the owner well, how was he taken online, paying bills ??

If the price, as you write, is very beneficial, then the warning light should come from where the price comes from. Connecting to a computer and previously installing a cheap Smart Switch program can say something.

Look carefully at the counterfeit screen will never be like the original.
On the operator's paper should be IMEI, if it matches with this after entering * 06 # it would also calm me down.
Occasions happen, but rare. It can be flooded, stripped after replacing the glass with various strange technologies.
If he was taken in the plus, I would also be careful, because if he stops paying back the phone, then the operator will block it (I do not know if there is a network doing it, but I know that plus for sure)

bogdan2491 wrote:

If he was taken in the plus, I would also be careful, because if he stops paying back the phone, then the operator will block it (I do not know if there is a network doing it, but I know that plus for sure)

Plus and T-Mobile, in both cases it should be checked whether the invoice has adequate information about the fact that the owner is the owner of the device until the repayment.

In general, it would be best to have a phone call for a computer. Any fakes on the ICC or other SPD immediately became apparent. If not, check the translation of the application whether there is no flowers, or it is definitely from USB-C, etc. I would not suggest the same purchase document because these also happened to counterfeit. You can check IMEI on imei.info