Annoying REFRESHING SIM DATA

I have the Note 4 N910C on cricket wireless, I read and they use ATT LTE bands as out N910C, but I have the same exact issues, every 10 minutes REFRESHING SIM DATA pops out, I did some research online, and every body said to change the SIM, so I bought another SIM, results were the same, also It didn't happened on stock rom running KITKAT, everything happened after I flashed 5.0.1 rom. I also read online it have to be with the CSC used on the rom, but I don't know about that, my note CSC is from EUR, CSC country: Greece. I live in Miami (USA) Also this happens using the LTE networks, when I choose WCDA/GSM it does the same but less often. I really want to fix this or any help from Devs here who can change the CSC or something, cuz it really sucks having a LTE device and only using HSPA+ , I hope someone finds a fix.... thanks in advance

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