Only star..because 0 is not offered. My 6 month old Galaxy A54 drops calls & errors "Not registered o a network". I have "bars" & ither phone on same network is ok. All by itself eventauuly clears. Random places. My A23 has no such trouble. I swapped SIM cards..problem did not follow. Samsung tries to tell me it's because I bought at Walmart. Next tech connected to phone & showed me I have muted calls. Tech says call didn't drop, I muted them. I asked for repair or replacement. Nope. Have to visit Samsung service dealer 50 miles away and prove I have a problem. Samsung won't stand behind their priduct. Techs do not listen or do not understand what they are told. This is why we need to make our products in USA. Not China, Korea, Mexico, Japan, Tiawan..USA! Maybe a fair product...but WORTHLESS CUSTOMER SERVICE!