I work in a place where I have to leave my phone outside and in airplane mode. I can check on it periodically throughout the day. This has happened a couple of times recently but as of late, it has happened more and more. I turn my phone off of airplane mode and I get a message like this from the number 3333:
ˆ „ ¾ ÿ¯„´„Œ‚˜ANVvF-THTSrVPBc0G ‘‰ €1##########/TYPE=PLMN† Š€Ž ‚ˆ € S|Ô ƒ http://mms.plspictures.com/ammsc/?ANVvF-THTSrVPBc0G##########
where the 10 consecutive # signs are the number who sent me the message (first one) and my number (second one). This message is also split into two SMS messages because it is too long and it is split right in the hyperlink. If I type in the hyperlink in my phone, it downloads a file that I can't open. (did this on my computer and I can open it as a text file and see it is a group message). Usually around 12 hours after receiving this message, I will receive the actual message in my inbox with no problems (except that it is 12 hours late!) I have a S4 running Android 4.4.2 and I am using the Textra app. I will note, that this never happens if my phone is not in airplane mode. I receive group messages just fine if I have signal turned on. Is this a carrier problem or an app problem? I have been using Textra for about 5 months now and am just now starting to have this problem regularly.