MMS/SMS Sending failure - AT&T Samsung Galaxy S7 Edge Questions & Answers

Has anyone else experienced MMS/SMS sending failures? One day last week I tried sending a MMS to my boyfriend for at least an hour and it kept saying "unable to send retry". I finally gave up, and deleted the message and physically showed him what I was making for dinner later on LOL. Mind you, I had full bars. Now again today I tried sending a regular text message to a friend and same thing, "unable to send retry". At least this time it went through the second try. I never had this issue sitting at the exact same spot ( at work) with my Nexus. I've had other occurrences too and it can get annoying. I am using the default Samsung messenger. Should I download a third party messaging app?

Did you ever fix?
I just started having the same problem with my SMS after the June update. When I try to send a text message it takes a while for it to send or keeps saying "failed to send". Did you ever get it fixed or figure out the problem? If so I am curious as to how.

I have the same failures but only on WiFi. If I turn off WiFi it's not an issue.
Sent from my SAMSUNG-SM-P907A using XDA-Developers mobile app

Yeah I just noticed that too. It only does it when i'm on wi-fi, but it just started doing it after my phone updated with the June security patch. I have always texted while on wi-fi at home and never had a problem until now. Wonder if there's an actual fix where wi-fi doesn't need to be off?

I had the same issue with SMS/MMS on stock app. I called up ATT and they reconnect something, but working fine now

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SMS Weirdness

I'm in the UK on O2 and today I sent some SMS and just noticed the last few were stuck at "Sending" and had been that way for hours. I deleted them and tried again. Same problem, regardless of the recipient. So I toggled Airplane mode on/off. Still no luck. So I rebooted. Once the phone came up I got two notifications along the lines of "Unable to send message". I can now send OK.
Now perhaps this was my network playing up but I'd been receiving SMS fine - and making calls - all day. I've never seen this behaviour before and the fact a reboot cleared it makes me wonder if it's a bug with the messaging app.
Has anyone else seen anything like this? Until today I'df been happily sending and receiving SMS with no issues since I got my N4 last Thursday.
rec71 said:
I'm in the UK on O2 and today I sent some SMS and just noticed the last few were stuck at "Sending" and had been that way for hours. I deleted them and tried again. Same problem, regardless of the recipient. So I toggled Airplane mode on/off. Still no luck. So I rebooted. Once the phone came up I got two notifications along the lines of "Unable to send message". I can now send OK.
Now perhaps this was my network playing up but I'd been receiving SMS fine - and making calls - all day. I've never seen this behaviour before and the fact a reboot cleared it makes me wonder if it's a bug with the messaging app.
Has anyone else seen anything like this? Until today I'df been happily sending and receiving SMS with no issues since I got my N4 last Thursday.
Click to expand...
Click to collapse
I'm on AT&T here in the states and I send hundreds of texts a day and have not run into this problem at all. I had one delay with an MMS that sent about an hour after I had initially sent it but other than that, smooth sailing.
rec71 said:
I'm in the UK on O2 and today I sent some SMS and just noticed the last few were stuck at "Sending" and had been that way for hours. I deleted them and tried again. Same problem, regardless of the recipient. So I toggled Airplane mode on/off. Still no luck. So I rebooted. Once the phone came up I got two notifications along the lines of "Unable to send message". I can now send OK.
Now perhaps this was my network playing up but I'd been receiving SMS fine - and making calls - all day. I've never seen this behaviour before and the fact a reboot cleared it makes me wonder if it's a bug with the messaging app.
Has anyone else seen anything like this? Until today I'df been happily sending and receiving SMS with no issues since I got my N4 last Thursday.
Click to expand...
Click to collapse
I ran into the same problem today. Rebooting your phone should get it back working. If not, enter your phone settings by dialing *#*#4636#*#*
Tap on Phone information and scroll down to SMSC:
Click on the Refresh button. You should see a number that looks like this: "+1206XXXX..."
This number is carrier specific.
Me too
rec71 said:
I'm in the UK on O2 and today I sent some SMS and just noticed the last few were stuck at "Sending" and had been that way for hours. I deleted them and tried again. Same problem, regardless of the recipient. So I toggled Airplane mode on/off. Still no luck. So I rebooted. Once the phone came up I got two notifications along the lines of "Unable to send message". I can now send OK.
Now perhaps this was my network playing up but I'd been receiving SMS fine - and making calls - all day. I've never seen this behaviour before and the fact a reboot cleared it makes me wonder if it's a bug with the messaging app.
Has anyone else seen anything like this? Until today I'df been happily sending and receiving SMS with no issues since I got my N4 last Thursday.
Click to expand...
Click to collapse
Me too. Rebooting and updating smsc didn't help. I tried to undo my actions to the extent I could remember but to no avail. For instance, I had disabled various inbuilt services viz. Pinyin, Korean keyboard, cell broadcasting, exchange, email etc. Re-enabled. Zuk. I had uninstalled Contacts+, reinstalled. Again, nada.
But Contacts+ is able to send normal smss. That is definitely intriguing and I would love to figure it out. Can someone assist?

HELP. 6P not receiving texts/BLANK SMSC

To start, I'm on Android 7.0 using the September security patch and am rooted.
Never had an issue with this phone before. Ever since yesterday morning I have not been able to receive anyone's text messages. I'm not sure about MMS but I haven't gotten any of those either. The weird thing is that I can SEND texts just fine....and I can also send text messages to myself and they come through.
After digging and researching I accessed that hidden settings menu by typing *#*#4636#*#* into my dialer and looking at the SMSC number which should be for Tmobile, my provider, +12063130004. However, it's blank and I'm unable to change it. Hitting "update" gives me an "update error" in the field and if I hit refresh I get "+12063130004",145 with the quotes and the 145. If I hit update from there and reboot it's still blank. If I put in +12063130004 and reboot it's still blank.
I have data, I can make and receive calls and surf the web. So far I've tried switching sms apps to no avail. I'm currently using google messenger. I've tried removing the sim and placing it back in. I went in to TWRP wiped cache, dalvich cache and data and it did nothing. Finally I reverted to a nandroid I made about a month ago when sms was working fine and it's still not working.
I'm out of ideas fellas. At my wit's end here!
Oh, I should also let you know that I think this all started when my girlfriend sent me a text message that i received yesterday morning. It was the last text I was able to get......she's on a cruise so she sent it somewhere near mexico....I think it made my phone have a massive brain fart and I'm not sure how to fix this bug. Please help!!
No one? I've found nothing on the web..
This may sound obvious, but have you tried using a factory image to return to stock?
Sounds like you've done everything but that.
I suppose you could also try deleting your APN and manually entering a correct one for your carrier. That's helped me in the past on other devices when I've had weird data/service issues.
Funny you asked. I did a full wipe and returned to stock on the latest November build. Still a no go. People still get my texts and I can still use data/make and receive calls fine. I'll try the APN suggestion now.
As far as APN's go, I tried to reset them to default. I even tried deleting all of them except for the one I was using which in the past for other devices helped with certain issues. I then created a custom APN setting that I found on the 6p forum that helped other users with SMS/MMS issues....no help for me.
I can still send SMS,mms, make and receive phone calls. No idea what to do!!!
I have a similar but different issue. I can receive messages just fine. But sometimes when i send messages id say about 40% of the time my message gets stuck at the "sending" and it takes sometimes up to 10min for it to send. I can speed the process up if i go to the secret menu and toggle the radio off and on.
Im on ATT BTW. I thought it had something to do with ATT shutting down the 2G network and the phone getting confused as to which network to send messages on but im no expert its just a theroy.
PS. I had this problem pop out of nowhere. Had it start randomly on PN6 (last build) so i upgraded to PN7 same thing on 2 different versions of the ROM. And now im on SuperAx 7.1 and still have the issue.
Ive always had problems with Nexus's and messages. When i had the Nexus 5 i actually had to warranty it out because MMS all of a sudden would not work at all.
I received one text today from someone. That's it. Not getting all the missed sms messages and not getting any additional sms messages.

Duplicate SMS Issue

Hey everyone. I have the T-Mobile V20 rooted using jcadduono's method. Recently I have been getting duplicate text messages. This has happened with text messages from a few different people but the latest was when I installed the PayPal app and they sent me my security code via SMS. Now I am getting the same text sent to me at random times, 18 times in the last day. Also, when other people send me texts, sometimes I get them and sometimes I get the text from PayPal. I'm pretty sure it's not on PayPal's end since this has happened with other numbers as well.
I have tried clearing the data from the stock messaging app, clearing cache and dalvik in twrp, disabling the stock messaging app and using Signal instead, and a full restore.
Has anyone else had a similar issue? I searched around and could not find a solution.
Edit: Nevermind. It was one of my apps, Root Call Blocker.
Hey I have been having a similar problem. A few days ago I was texting with somebody and they just stopped responding. However we WERE sorta fighting about some stuff so I didn't think anything of it. But a couple days later I started getting ALL of the messages that she'd sent and I'm getting all of them TEN FOLD. like 20 copies of the same message. Then I started getting the same **** from other people too. So I figured it had to be something with my dirty santified v20. So I came to XDA and low and behold here is this guy talking about RCB. Well yesterday I had remembered that I have a license for Root Call Blocker Pro by Fahrbot PRI. This HAS GOT to be what the problem is. So I'm gonna uninstall RCB and try to contact Fahrbot and direct them to this thread. Thanks dude for coming here and reporting your problem. Possibly we will find some more people showing up here and eventually get Fahrbot to fix his ****. Now to uninstall and see if it works.
Edit: This did end up being the problem and solution. After removing Root Call Blocker Pro the phone was still getting weird texts for a while but they weren't multiple copies of the same messages. I booted into recovery and wiped the delvik and cache for good measure. When I booted back up the phone was still getting old messages, however they slowed to an eventual stop. I contacted Fahrbot and informed them that I suspect their program has some bugs on android 7.0 on the v20. When your phone receives an SMS under normal conditions, it will send back to the service provider an ACK response. If the phone service provider sends out a handful of SMS messages to the phone but the phone sends nothing back acknowledging that each message was received, then the provider automatically assumes 'did not receive ACK from phone. phone must be off. resending until acknowledged.
Ditto
I registered just to reply to this thread! I, too, had RCB installed on 7.1 nougat, but kept getting repeated texts or delayed texts. Like, DAYS delayed. Sprint could not figure out what was wrong; but luckily I found this thread, uninstalled, and now my texts are working again.
And RCB was my favorite call blocker :crying:

texting problems: wlan-data conflict

My wife and I have identical Moto G7 phones. In the last couple of days we've both had problems sending out texts. No problem receiving texts, just sending out.
The texts fail to go out with an error message saying to tap again to try again. But this repeats itself until I turn off the wifi on the phone. Then the text goes out with no problem.
So there seems to be some kind of conflict between data (T-Mobile) and the wlan. This only started recently.
Anyone else see this? Is there a solution?
i have experienced similar issues with the stock google messages app. I hate to say my fix was installing the Verizon messaging app. (I'm on verizon) and it seemed to fix it.
maybeme2 said:
My wife and I have identical Moto G7 phones. In the last couple of days we've both had problems sending out texts. No problem receiving texts, just sending out.
The texts fail to go out with an error message saying to tap again to try again. But this repeats itself until I turn off the wifi on the phone. Then the text goes out with no problem.
So there seems to be some kind of conflict between data (T-Mobile) and the wlan. This only started recently.
Anyone else see this? Is there a solution?
Click to expand...
Click to collapse
I would try a different sms app, I use Pulse
https://play.google.com/store/apps/details?id=xyz.klinker.messenger&hl=en_US
sd_shadow said:
I would try a different sms app, I use Pulse
https://play.google.com/store/apps/details?id=xyz.klinker.messenger&hl=en_US
Click to expand...
Click to collapse
Thanks. Tried Pulse and it does the same thing on both our phones.
It's not the apps. The behavior is new (1 month) and may be a new underlying android or Google services bug. Something todo with the wifi to data handover.

Cant send SMS... Sometimes?

I'm hoping somebody has experienced this before and found a fix and can help me out...
All day I've been struggling to send SMS messages... I'm on 11.0.1.1, magisk rooted, with RICE installed. Everything was working great but today when i woke up, i was unable to send SMS messages...
I'm receiving them, but sometimes they are delayed and i get a few at a time with nothing coming in again for a short time after that, but i've made no changes to my phone in the last 2 days. I've rebooted a few times between then and now (twice yesterday, just because), so i cant really understand why i would just randomly be unable to send text messages or why they are received in bursts like this?
I've gone in and reset my "Wi-Fi, Mobile & Bluetooth" settings from within the reset options, and this appears to fix the issue, but only for a minute or so and suddenly they stop sending again... I thought maybe its the tower, so i used my daughters phone to text my wife and that worked perfectly fine. Immediately before and after, mine wouldnt send.
Any ideas, links, or guidance that might help me figure this out?
Since there's been some updates and no responses to my thread, i wanted to revisit this and see if i'm still the only one on earth with this issue.
The issue seemed to have completely gone away on its own, no idea why or how... But a couple weeks ago i decided to install the update to 11.0.2.2 on my IN11AA. Ever since, my phone will randomly stop receiving SMS messages completely. I can still send, just cant receive. The only way to fix this is to reboot.
Anyone else with this issue? Anyone find a reason for this? A fix perhaps?
PMad said:
Since there's been some updates and no responses to my thread, i wanted to revisit this and see if i'm still the only one on earth with this issue.
The issue seemed to have completely gone away on its own, no idea why or how... But a couple weeks ago i decided to install the update to 11.0.2.2 on my IN11AA. Ever since, my phone will randomly stop receiving SMS messages completely. I can still send, just cant receive. The only way to fix this is to reboot.
Anyone else with this issue? Anyone find a reason for this? A fix perhaps?
Click to expand...
Click to collapse
Seeming this issue doesn't seem to be widespread, could be a carrier side issue?
It's a shame we don't have dual boot capabilities because you could have switched to stock and checked.
Also try a secondary SIM from maybe someone in your household and send using that SIM and see what happens.
I know there are delays after rebooting, I do a lot of magisk module work and every reboot try sending notifications using SMS or some other methods and I get around 3 mins no send or receive but not at the length you do.
LOGMD said:
Seeming this issue doesn't seem to be widespread, could be a carrier side issue?
It's a shame we don't have dual boot capabilities because you could have switched to stock and checked.
Also try a secondary SIM from maybe someone in your household and send using that SIM and see what happens.
I know there are delays after rebooting, I do a lot of magisk module work and every reboot try sending notifications using SMS or some other methods and I get around 3 mins no send or receive but not at the length you do.
Click to expand...
Click to collapse
I just had the issue again yesterday. Wife and I started texting eachother at about 8am, except, i didnt receive any of her messages until 5:30pm when she got home and told me she had been texting me. I rebooted 3 times, which once usually resolves the issue but not this time. I had to go into the settings and reset my WiFi/Mobile/Bluetooth settings, then it worked immediately.
Because of the solutions, i wouldnt think its a sim issue, but im going to test it anyway. I've factory reset a few times in the past and i still get the issue. I've had the issue while rooted and not rooted. Four of us have phones, 3 are Samsung and then there's mine, and mine's the only one with the issue.
PMad said:
I just had the issue again yesterday. Wife and I started texting eachother at about 8am, except, i didnt receive any of her messages until 5:30pm when she got home and told me she had been texting me. I rebooted 3 times, which once usually resolves the issue but not this time. I had to go into the settings and reset my WiFi/Mobile/Bluetooth settings, then it worked immediately.
Because of the solutions, i wouldnt think its a sim issue, but im going to test it anyway. I've factory reset a few times in the past and i still get the issue. I've had the issue while rooted and not rooted. Four of us have phones, 3 are Samsung and then there's mine, and mine's the only one with the issue.
Click to expand...
Click to collapse
What SMS app are you using? I wonder if you have enabled RCS messaging the new Google style messaging? Because maybe it uses WiFi to download some of the SMS, and if your carrier doesn't support it maybe you only receive it when you are on WiFi.
Try on WiFi then try just on mobile data and see if you notice.
I attached a photo check the top setting. Google might be persisting your setting (if you are using Google messages)
Also why don't you and your wife try a simnswap next time you happen and you are both at home, if your wife doesn't receive it then it's sim/network related.
LOGMD said:
What SMS app are you using? I wonder if you have enabled RCS messaging the new Google style messaging? Because maybe it uses WiFi to download some of the SMS, and if your carrier doesn't support it maybe you only receive it when you are on WiFi.
Try on WiFi then try just on mobile data and see if you notice.
I attached a photo check the top setting. Google might be persisting your setting (if you are using Google messages)
Also why don't you and your wife try a simnswap next time you happen and you are both at home, if your wife doesn't receive it then it's sim/network related.
Click to expand...
Click to collapse
I'm using Google Messages, and yes i do have RCS enabled. I dont believe thats the case though because the messages that are blocked are sometimes just an "ok" message. I'm almost always on WiFi though too.
The primary issue with sim swapping with my wife is that we would need to swap sims for up to 2 weeks since sometimes I have no issues for 2 weeks, then i get the issue once or twice a day for three days. The worst part (for me anyway) is that her screen is SHATTERED on her phone (she's using a Note10+) and its hard to see anything, so i've been trying to get her to get a new phone. I think we might be FINALLY upgrading her (after 5 months) to an S21 Ultra, so maybe we'll give that a shot there.
I'm actually wondering if it has something to do with messages for web. I've noticed that the issue only really happens after using that, but.. It doesnt always happen after using messages for web, so it might just be a coincidence.
I'm pretty sure its not Google Messages, or RCS, and fairly certain its not messages for web, because i used to use Signal only, and i still had the issue a few times.
PMad said:
I'm using Google Messages, and yes i do have RCS enabled. I dont believe thats the case though because the messages that are blocked are sometimes just an "ok" message. I'm almost always on WiFi though too.
The primary issue with sim swapping with my wife is that we would need to swap sims for up to 2 weeks since sometimes I have no issues for 2 weeks, then i get the issue once or twice a day for three days. The worst part (for me anyway) is that her screen is SHATTERED on her phone (she's using a Note10+) and its hard to see anything, so i've been trying to get her to get a new phone. I think we might be FINALLY upgrading her (after 5 months) to an S21 Ultra, so maybe we'll give that a shot there.
I'm actually wondering if it has something to do with messages for web. I've noticed that the issue only really happens after using that, but.. It doesnt always happen after using messages for web, so it might just be a coincidence.
I'm pretty sure its not Google Messages, or RCS, and fairly certain its not messages for web, because i used to use Signal only, and i still had the issue a few times.
Click to expand...
Click to collapse
When you say "ok" are you just sending short messages or the suggested replies by Google?
I had problems with auto reply in notifications for a while.
Tbh I just use telegram or signal becuase they don't require being connected to the device directly when using the web/desktop versions.
Yeah swapping for 2 weeks isn't great!
Interesting you had this issue with signal too, sounds like Google cloud messaging (needed for any app push notifications and messaging) is in a standby mode.
You got naptime or servicely installed? Shame no one else is seeing this issue might be easier to diagnose

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