I recently got a used iphone 6s and has the ios 15. I have been trying to send a text to my friend and on my other ipone before yesterday I texted her and she got it. Its not imessage and have the send as sms turned on. Yet since yesterday She hasnt been getting them. I have tried everything making changes to things that I see are different than my other iphone and it hasnt changed at all. I checked apn and it had the isp.mb.com so just in case I updated it to the apn sp.mb.com and so far nothing at all. I am at the end and I dont know what to do. Does anyone else have this issue or does anyone know if this issue has to do with the ios 15 update
