After I replaced the battery according to these instructions, I, too, had the scary "searching" error when looking for my service provider, even though my 4G was available. I plugged the phone into my computer and rebooted the phone. When it came back on, my provider showed right up. All is well. Do watch for that little black and gold thingy...it's teeny, and comes loose no matter what you do. Just pin it between the phone and connector on the top screw, with that little gold dot facing you. Put the screw in to hold it in place.
Lorsqu'il en aura reçu, il pourra afficher un graphique de sa réputation au fil du temps.
Voici un aperçu de ce à quoi ressemble ce graphique :
Aucun point de réputation obtenu pour l'instant.