Couple days ago I switched over to Cricket and brought my own device (iPhone 6s) and transferred my phone number.
I activated the SIM card and I'm able to make phone calls, data and single text messages, but I'm not able to send Group Texts. I called the hotline and walked through the usual steps, OS upgrade, Network Reset, re-boot. At the end of the day they couldn't help. With the SIM Card from Cricket I'm not able to see the Carrier Network Configuration option under Settings/Cellular/Carrier Services to update the APN settings manually. They actually should automatically update with the SIM card, but since Group Message are not working I suspect an incorrect configuration.
Any help is appreciated