Develop Bugs

HELP: Cannot send SMS, but MMS, phone calls and data is working

Anyone know what may be up with this? When i try to send an SMS it just sits there attempting to send but ends up saying it has failed. no details on why.
Using data on 2g/3g is fine. I have wiped phone and installed new ROMs twice but the deal is the same.... I can still make/receive phone calls, can send/receive MMS, browser on wifi and 2g/3g is good, just no sms. phone status says i'm connected, phone network settings on *#*#4636#*#* says everything is fine, and I have even switched between AUS and AUS2 bands (i am in australia) but to no avail.
Please help!

aerospyke said:
Anyone know what may be up with this? When i try to send an SMS it just sits there attempting to send but ends up saying it has failed. no details on why.
Using data on 2g/3g is fine. I have wiped phone and installed new ROMs twice but the deal is the same.... I can still make/receive phone calls, can send/receive MMS, browser on wifi and 2g/3g is good, just no sms. phone status says i'm connected, phone network settings on *#*#4636#*#* says everything is fine, and I have even switched between AUS and AUS2 bands (i am in australia) but to no avail.
Please help!
Click to expand...
Click to collapse
Maybe your simcard has lost the smsc number? I don't remember how to edit it on the nexus though.
When did you first encounter this problem?
Sent from my Galaxy Nexus using Tapatalk

I first encountered this around the same time i first flashed revolutionHD, but doubt its directly related. I'll look around for the SMSC I need. Will update

experienced something similar at activation. are you porting your number?

ok you were right, my SMSC disappeared. annoyingly i couldn't put it directly into the phone, as it is complaining that there is an update error, but thankfully i use GoSMS and can tell it to use a custom SMSC and so that works.
As for activation, n i wasn't porting my number, this isn't even a new contract, my boss from my old job bought the phone for me outright as a christmas pressie so it is a direct swap.

[Q] Samsung Galaxy S3 - AT&T Can only Send/Receive SMS while on a call

Hello!
This morning I suddenly began getting a failed message any time I attempted to send an SMS message. There doesn't appear to be any error code or anything, just an exclamation point next to the message which triggers a new attempt if i touch it.
I assumed it was a passing network error and ignored it for awhile. During my last break at work I realized that still could not send SMS, so I powered my phone off and back on to no avail. I called AT&T tech support, thinking it may have been a provisioning or switch error, they sent me an SMS which came through fine, and I sent a few test SMS while on the line with them which also went through perfectly.
After getting off of the phone with AT&T I discovered my SMS was not working again. Messing around with it later I learned that I can send and receive SMS normally while on a call, and can send MMS messages regardless, but am unable to receive MMS unless I'm on a call. Data is working fine (both AT&T and WiFi) and I can make and receive calls normally.
When I got home from work I called AT&T again. They had no suggestions, but told me they could not help me troubleshoot while I was on the phone needing troubleshooting (which makes perfect sense, but was the only phone available at the time.)
I have since re-flashed my phone to the official factory rom and done a reset to factory settings/deleted all data by following this tutorial here: (XDA won't allow me to link the video, but youtube user appdroid seven, video title "How To Unroot & Factory Reset At&t Samsung Galaxy S III I747", I fouind the video in the thread titled "[ReF} ALL IN ONE NOOBS VIDEO* GUIDES TO ROOT | FLASH | & MORE [Mods this goes in ATT]" post four.)
I am still having the same issue, but am running out of ideas on how to fix it... any help would be greatly appreciated.

I had the same problem. I just figured out how to fix it. Worked on my friends phone too. Both S3s.
I found the below on another site.
1) With phone on, take off back cover and press your SIM card so it releases from the spring. It won't come all the way out as it's blocked by the battery. This seems fine - I didn't bother trying to force it out as I didn't want to break anything...
2) Once you see the message that the SIM card is removed, go to the dialer and dial *#2263#
3) You should see a menu with band selections. The current setting is "Automatic". If you switch to "GSM All", you will be EDGE (2G). If you switch to "WCDMA All", you will be on HSPA+ (3G, though AT&T and others call it 4G).
4) Press the SIM card back into place until it clicks. For whatever reason the phone will not recognize it until you reboot. Upon reboot you should see your new setting in effect.
I switched to WCDMA ALL... then rebooted. This put it on HSPA only. Then I did the above again and selected automatic and rebooted. LTE came back online and the SMS worked again. No problems since. Hope this helps.
timstapl said:
Hello!
This morning I suddenly began getting a failed message any time I attempted to send an SMS message. There doesn't appear to be any error code or anything, just an exclamation point next to the message which triggers a new attempt if i touch it.
I assumed it was a passing network error and ignored it for awhile. During my last break at work I realized that still could not send SMS, so I powered my phone off and back on to no avail. I called AT&T tech support, thinking it may have been a provisioning or switch error, they sent me an SMS which came through fine, and I sent a few test SMS while on the line with them which also went through perfectly.
After getting off of the phone with AT&T I discovered my SMS was not working again. Messing around with it later I learned that I can send and receive SMS normally while on a call, and can send MMS messages regardless, but am unable to receive MMS unless I'm on a call. Data is working fine (both AT&T and WiFi) and I can make and receive calls normally.
When I got home from work I called AT&T again. They had no suggestions, but told me they could not help me troubleshoot while I was on the phone needing troubleshooting (which makes perfect sense, but was the only phone available at the time.)
I have since re-flashed my phone to the official factory rom and done a reset to factory settings/deleted all data by following this tutorial here: (XDA won't allow me to link the video, but youtube user appdroid seven, video title "How To Unroot & Factory Reset At&t Samsung Galaxy S III I747", I fouind the video in the thread titled "[ReF} ALL IN ONE NOOBS VIDEO* GUIDES TO ROOT | FLASH | & MORE [Mods this goes in ATT]" post four.)
I am still having the same issue, but am running out of ideas on how to fix it... any help would be greatly appreciated.
Click to expand...
Click to collapse

One additional step...
polaris30 said:
I had the same problem. I just figured out how to fix it. Worked on my friends phone too. Both S3s.
I found the below on another site.
1) With phone on, take off back cover and press your SIM card so it releases from the spring. It won't come all the way out as it's blocked by the battery. This seems fine - I didn't bother trying to force it out as I didn't want to break anything...
2) Once you see the message that the SIM card is removed, go to the dialer and dial *#2263#
3) You should see a menu with band selections. The current setting is "Automatic". If you switch to "GSM All", you will be EDGE (2G). If you switch to "WCDMA All", you will be on HSPA+ (3G, though AT&T and others call it 4G).
4) Press the SIM card back into place until it clicks. For whatever reason the phone will not recognize it until you reboot. Upon reboot you should see your new setting in effect.
I switched to WCDMA ALL... then rebooted. This put it on HSPA only. Then I did the above again and selected automatic and rebooted. LTE came back online and the SMS worked again. No problems since. Hope this helps.
Click to expand...
Click to collapse
I just got this problem after the AT&T update got pushed to my phone yesterday. I followed the steps above, trying to text between each switch of the radios. I found that I could text on "WCDMA All" but not "LTE All". Going to "Automatic" gave me LTE radio back, but MMS/SMS failed to work. However, text did work if I was on a phone call! This got me thinking about the APN settings and whether they were right. Sure enough, AT&T messed with "APN type" on the latest upgrade. It should read "default, mms, supl, hipri" but instead read "default, mms, supl". I created a new APN with the correct APN type, reset the radio to "Automatic" as per the instructions above, and rebooted. I now have LTE and MMS/SMS back!
I hope that this helps!
Now, how do I go about billing AT&T for my lost time?

6.20.502.5 ATT Firmware

Hi All,
Has anyone extracted the the firmware from the RUU? I did a quick search and just saw one with the HBOOT. Also has anyone installed the HTC RUU? Is it any good?
Thanks in advance.

Here
http://forum.xda-developers.com/showpost.php?p=66871005&postcount=13

Of course wnc and ckpv5 would be involved!
Guess I should have looked a little harder than searching by the numbers!
Many thanks!
Sent from my SAMSUNG-SGH-I747 using XDA-Developers mobile app

If anyone is looking for an already modified version of the 6.20.502.5 firmware. I removed the boot.img and the recovery.img file and replaced the hboot file with one that has no red text. This firmware works fine on the AT&T and Developer's Edition models.
Download here.

Hey everyone in this post,
Please check to make sure that you are receiving voice calls. I just discovered that I can make outgoing calls just fine however ALL incoming calls are going directly to voicemail. I'm going to do a little more research but it looks as though I'll need to revert to an earlier firmware. I'm guessing this has something to do with HD Voice.
A couple more things of note: I'm on the latest version of ARHD which is 53.1 (MM); texts work fine both ways; data is fine; voicemail functions fine. Just to give a little background.

ccw1134 said:
Hey everyone in this post,
Please check to make sure that you are receiving voice calls. I just discovered that I can make outgoing calls just fine however ALL incoming calls are going directly to voicemail. I'm going to do a little more research but it looks as though I'll need to revert to an earlier firmware. I'm guessing this has something to do with HD Voice.
A couple more things of note: I'm on the latest version of ARHD which is 53.1 (MM); texts work fine both ways; data is fine; voicemail functions fine. Just to give a little background.
Click to expand...
Click to collapse
I'm having the same problem. I fiddled with the APN settings and it seemed (I'll try again) to fix that issue. Meaning I manually entered the APN settings and I was able to receive calls. A bit ridiculous.
Edit: It's not the APN Settings that helped. It's actually switching the preferred network from LTE to 3G or maybe even 2G. Haven't checked it on 2G.

garekinokami said:
I'm having the same problem. I fiddled with the APN settings and it seemed (I'll try again) to fix that issue. Meaning I manually entered the APN settings and I was able to receive calls. A bit ridiculous.
Edit: It's not the APN Settings that helped. It's actually switching the preferred network from LTE to 3G or maybe even 2G. Haven't checked it on 2G.
Click to expand...
Click to collapse
I finally got mine working but I have no idea what the magical combination ended up being. I did downgrade to a previous 6.12 firmware but that alone didn't do the trick. I also manually added a new APN in addition to many other things one by one. I was actually on an outgoing call and my line beeped because I had a call waiting! I was so shocked (and pleased) that I hung on the person I was speaking with and answered the call. From then on it has worked fine. Having said that I'm going to sit tight with the phone the way it is until someone much smarter than me lays out a solid plan.
I'm glad you got beyond your problem as well :good:

ccw1134 said:
I finally got mine working but I have no idea what the magical combination ended up being. I did downgrade to a previous 6.12 firmware but that alone didn't do the trick. I also manually added a new APN in addition to many other things one by one. I was actually on an outgoing call and my line beeped because I had a call waiting! I was so shocked (and pleased) that I hung on the person I was speaking with and answered the call. From then on it has worked fine. Having said that I'm going to sit tight with the phone the way it is until someone much smarter than me lays out a solid plan.
I'm glad you got beyond your problem as well :good:
Click to expand...
Click to collapse
Are you still able to receive phone calls while on 4G? Any further issues? I asked because ever since upgrading to LP firmware I no longer can receive incoming phone calls while on 4G but I can make calls. I have noticed that while on a call on 4G I can receive calls which is strange. So I have to stay on 3G to receive all incoming calls. Any ideas on a fix? Thanks
Sent from my HTC One_M8 using Tapatalk

makaveli0622 said:
Are you still able to receive phone calls while on 4G? Any further issues? I asked because ever since upgrading to LP firmware I no longer can receive incoming phone calls while on 4G but I can make calls. I have noticed that while on a call on 4G I can receive calls which is strange. So I have to stay on 3G to receive all incoming calls. Any ideas on a fix? Thanks
Sent from my HTC One_M8 using Tapatalk
Click to expand...
Click to collapse
Your situation does sound similar to mine. Whatever combination of zany things that happened for me as forced my network into HSPA+ whereas it used to read LTE. I'm not referring to the icon in the status bar (that still reads 4G). If I go into Settings>About>Network>Cellular network type. That's where I see HSPA+, HSPA or HSPAP depending on where I am. My speeds are WAY slower but it's still functional, yet there's something obviously still broken. Since I can receive calls now I've decided to just "live with it" until I come across a proper solution that I know will work. If that day should ever come though, I'll be sure to post back here.
Update:
I am back to my "Cellular network type" displaying "LTE" and my download speeds also confirm this. Below are the additional steps I took to get to this point:
1. In the phone dialer enter *#*#4636#*#* (takes you to a "Phone info" screen)
2. Scroll down to "Set preferred network type" (take note of its current selection in case you need to go back)
3. Using the dropdown, select GSM/WCDMA/LTE auto
That's it. After a few seconds my data icon refreshed and I knew I was good to go. For good measure I went back to Settings>About>Network to verify my Cellular network type. Good luck.

ccw1134 said:
Hey everyone in this post,
Please check to make sure that you are receiving voice calls. I just discovered that I can make outgoing calls just fine however ALL incoming calls are going directly to voicemail. I'm going to do a little more research but it looks as though I'll need to revert to an earlier firmware. I'm guessing this has something to do with HD Voice.
A couple more things of note: I'm on the latest version of ARHD which is 53.1 (MM); texts work fine both ways; data is fine; voicemail functions fine. Just to give a little background.
Click to expand...
Click to collapse
AT&T's deployment of Voice over LTE (which they've branded "HD Voice") does not play well with international-based custom ROMs (basically, most any ROM that is not ATT based). Issues with voice calls is the common symptom.
Best workaround is to call AT&T and ask them to turn off HD Voice for your account (may need to ask for 2nd Tier tech support before you get someone who knows what you are talking about). Yes, you can turn off LTE, but that is obviously not a great option.
Other fixes (APN, firmware) are likely placebo effect at best. Went down a similar path trying to troubleshoot this problem for folks a year ago, before coming to the conclusion (Post #9): http://forum.xda-developers.com/att-htc-one-m8/help/incoming-calls-lte-mode-m8-att-arhd-34-0-t3026710

Can't dial or send/receive SMS

Hi there. Recently my Nexus 5X has something wrong with its communication function.
I am using CM13 nightly builds with ElementalX kernel on 4GLTE network. And everything works fine except:
When making calls, it ends up with "Network not available". However, the signal bar is full. Also, it is unable to send or receive any text message.
I have already tried:
1. Flash the latest factory image from Google(mtc19v). And it worked for a while then the issue recurred.
2. Dial *#*#4636#*#* and switch to "CDMA only" but it failed to make it, automatically rolled back to LTE mode.
3. Tried CM13 snapshot and other nightly builds, and still got the problem.
Does anyone have any advice? Thanks.

Cijophxon said:
Hi there. Recently my Nexus 5X has something wrong with its communication function.
I am using CM13 nightly builds with ElementalX kernel on 4GLTE network. And everything works fine except:
When making calls, it ends up with "Network not available". However, the signal bar is full. Also, it is unable to send or receive any text message.
I have already tried:
1. Flash the latest factory image from Google(mtc19v). And it worked for a while then the issue recurred.
2. Dial *#*#4636#*#* and switch to "CDMA only" but it failed to make it, automatically rolled back to LTE mode.
3. Tried CM13 snapshot and other nightly builds, and still got the problem.
Does anyone have any advice? Thanks.
Click to expand...
Click to collapse
Try getting a new simcard from your carrier.

Darke5tShad0w said:
Try getting a new simcard from your carrier.
Click to expand...
Click to collapse
Thanks for reply. I will try ASAP.

OK. I have fixed it. This is the MOST weird and tricky problem I have ever met since I knew Android phones.
First there are some key concepts:
From the "*#*#4636#*#*" (Testing) menu -> Phone Information, we notice IMEI, Phone number, and Current Network. In my case I couldn't make phone calls or send/receive text messages, I got my IMEI and Current Network NORMAL, but I got NOTHING for my Phone number section, which means my phone turned into something without a number! So how can it be discovered by the mobile base stations?
Furthermore, scrolling down there are another 3 indicators: GSM service and GPRS service and Network type. In my case the GSM service was "Emergency calls only"(However there is someone on the Androidcentral Forum said his Nexus 4 under the same circumstance can't even dial 911), and I doubt that. The GSM service was COMPLETELY offline. On the other hand, since my data service ran smoothly thus the GPRS service is always "connected". The Network type is "LTE". I have tried many times to change it to the CDMA or GSM ones, like "eHRPD", "1xRTT", "EDGE" or sth else but few succeeded. Once succeeded, I can normally voice or text, yet on the outdated network.
Then how I fixed this:
I googled "Mobile network not available" and got many results about the Samsung phones. Then googled "mobile network not available nexus" and found this one "Mobile Network Not Available" on Nexus 4 T-Mobile which perfectly matches my case. Finally I thought it had something to do with my network provider and my phone should not be blamed. I just tried another SIM card from another carrier, which worked perfectly on LTE network with voice and text. When I opened the *#*#4636#*#* menu and tried to change "preferred network", the phone also worked smoothly no matter WCDMA only/GSM only/LTE only. I put back my bad SIM card and the voice and text came back!??? I was extremely confused. That is to say, still there was a problem on my phone. By inserting another SIM it just did something like refreshing the stucked radio module??? I wondered. After this simple trick I got my voice and text back though, the "Current network" became "Roaming Indicator Off".... Maybe the next time.

LG G8 Problem with MMS

Hi - Never done this before, but I am having problems with MMS using my G8 (LM-G820UM) and hoping someone out there might be able to help. You will have my eternal gratitude. At this point, I would even consider rooting if you think that would help.
The current issue: I mistakenly bought a US/Sprint phone and am in Canada. It appears that cross-flashing on a G8 is verboten, so that's not an option (please correct me if I am wrong - the threads I have read seem to be several months old). Everything seems to work properly, no problem with voice, Internet, and SMS... but I cannot send or receive MMS. My APN appears fine... though I cannot edit it. But here is what makes me scratch my head:
Available network modes are Automatic (what I use), LTE/CDMA, CDMA, GSM/UMTS. If I switch to LTE/CDMA then MMS works fine, but SMS and voice disappear.
So... the solution I've come up with, which *sucks*, is to swap network modes whenever I want to send or receive MMS... which isn't very often, but does come up once a week or so.
I have tried changing to each of the "Preferred Network Type" options within ##4636##, but none of these worked for both SMS and MMS at the same time.
Reading the forums, I found a solution involving ##3282# and performing a "reset"... which appeared promising... but there does not appear to be an edit or reset option when I enter the menu.
Thank you!!
And also... live and learn... one more thing to check/test when I buy a used phone...

You can use google messages it works perfect mms i have a sprint g8 also on movistar carrier from mexico.and i use google messages for the same reason.

mip1977 said:
Hi - Never done this before, but I am having problems with MMS using my G8 (LM-G820UM) and hoping someone out there might be able to help. You will have my eternal gratitude. At this point, I would even consider rooting if you think that would help.
The current issue: I mistakenly bought a US/Sprint phone and am in Canada. It appears that cross-flashing on a G8 is verboten, so that's not an option (please correct me if I am wrong - the threads I have read seem to be several months old). Everything seems to work properly, no problem with voice, Internet, and SMS... but I cannot send or receive MMS. My APN appears fine... though I cannot edit it. But here is what makes me scratch my head:
Available network modes are Automatic (what I use), LTE/CDMA, CDMA, GSM/UMTS. If I switch to LTE/CDMA then MMS works fine, but SMS and voice disappear.
So... the solution I've come up with, which *sucks*, is to swap network modes whenever I want to send or receive MMS... which isn't very often, but does come up once a week or so.
I have tried changing to each of the "Preferred Network Type" options within ##4636##, but none of these worked for both SMS and MMS at the same time.
Reading the forums, I found a solution involving ##3282# and performing a "reset"... which appeared promising... but there does not appear to be an edit or reset option when I enter the menu.
Thank you!!
And also... live and learn... one more thing to check/test when I buy a used phone...
Click to expand...
Click to collapse
I've had the exact same problem, and the reset option within the ##3282# menu is definitely the solution. You have to go to apn settings, view, 3 buttons at top right, and reset. If you had the right sim in of course, mms should now work

antintin said:
I've had the exact same problem, and the reset option within the ##3282# menu is definitely the solution. You have to go to apn settings, view, 3 buttons at top right, and reset. If you had the right sim in of course, mms should now work
Click to expand...
Click to collapse
You are a lifesaver! Yes, that was what I was missing - now everything appears to be working as expected. I believe it was your post in another thread that started me down this path as well, thank you for bringing it full-circle.