I recentlybought brand new Samsung Galaxy S10 plus from a small shop in my city, with warranty and everything. When I opened it, it seemed that there were fingerprints on the back protector. I called a Samsung rep right away to check the IMEI and they said all was fine and I must have encountered a phone checked by QA right before packing. The Bixby button is working, the fingerprint lock also, the wireless powershare, both cameras, the *#0*# diagnostic code, the charger seems original (I checked on samsung website)... but I still seem to be worrying. Can you tell me if all of this - the IMEI and the list above - is enough to tell it is 100% original and not counterfeit? I've heard that the counterfeits can even have a real IMEI... Sorry for the obsession, but the phone costs a lot of money.
@Antoanet obviously you have made a number of checks and seems there are no warning signs, with the diagnostic tests coming out fine. For other members benefit a bit more about tests here. https://android.gadgethacks.com/how-to/test-your-samsung-phone-Diagnostics
@JAMES4578 Thank you! Yesterday I got the Android 11 update, so I suppose this is another proof, fakes don't get the updates as far as I know. I also did the Antutu test, which showed a score of 414139, which is similar to other Galaxy s10+ devices.