How do you know Note 7 that was safe or Redux?

Samsung has launched a comprehensive program in the world to return the Galaxy Note 7 devices  due to exposure very few of them to the blasts. In contrast, another new Samsung device and secure for users to be provided. If you wanted to buy a new phone Note 7, and do not even suspect that Samsung will sell the same old phones, there is a way to tell the buyer that the machine was completely safe or from returned devices
Given the phone Note 7 packet you will find them sign the letter S (it may be a safe word Safe) next to the serial number card. And if this character exists and prominently the phone safe from any new payments that Samsung began delivered to users and not just a phone discards been re-sell it.

Samsung is working on the launch of a data base of IMEI numbers so that the user can simply enter the number to know if it was an original and secure phone, or phones bounced in which the probability of the risk of explosion of the battery.

This step will give you more protection in case I bought the phone without a tray or were disarmed label containing the letter S so that it can enter the IMEI number and find out the details of the machine. It is clear that Samsung users take safety seriously and make every effort to maintain the reputation of this problem.