This seller is not true to his words.. I bought a unit from this seller and I ask him if the unit is openline, he said yes. After testing the phone, with his sim inside i decided to take it because im in a hurry. As i get to my office, i inserted a globe sim and it said that the sim card is not valid. I tried re-inserting it and the message is still the same. I tried my sun sim, still the sim is not valid. Now how will i use it?!