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[MOD] Enable "Phone" Features on T-Mobile T869

To give you a little context, I came over to the T869 from the Galaxy Tab 2 7.0, which is basically the WiFi-only sibling of the "Plus" T869 that T-Mobile now sells. Being a WiFi only device, it had the "phone" parts of the GUI disabled, like the Phone and Messaging apps won't show up or run and you can't sync BlueTooth headsets. The T869 has the MMS app enabled, but no phone, so the same mod I did on the P3113 is useful on this one.
Thankfully, even though it seems fairly arcane, Wes Foster made a nice utility to make this much easier (and more n00b friendly) to do.
To do this (and other framework mods), first you should pull the framework-res.apk file out of the ROM.zip file you're using. Open the zip and go into /system/framework. In there you'll find framework-res.apk, which you should extract.
Drop that file into the "place-framework-res-here" folder within the Mod tool, then run the tool and enter option 1.
This will unpack the files to the "files-to-edit" folder.
Inside there you'll need to go to \framework-res.apk\res\values\
You'll need to modify the file bools.xml. Find this line and change "false" to "true":
Code:
[B]<bool name="config_voice_capable">false</bool>[/B]
Once you make that change, you're all set to "enable" phone features. You can also make other changes as desired.
Here's a partial guide: http://www.igottadroid.com/ModMarket/Listings/Darkside Agent1621289.html
Once you're done modifying the file, save it, and then run through options 2, 3, and 4 on the mod tool.
Once its done, you'll have a flashable ZIP file named "update.zip" inside the final-zip-file folder.
For extra safety, I reccomend making a copy of the update.zip called revert_framework.zip.
Open this copy in 7-Zip, go into the /system/framework folder, and delete the framework-res.apk file there. Replace it with the unmodified one from your ROM, then close 7-Zip. Now you have a second "flashable" ZIP that will put the untouched framework back onto your tablet, which comes in handy if you managed to break something and cannot boot
I did not make the tool, and found it in this thread: http://forum.xda-developers.com/showthread.php?t=1823701
I am simply reposting it over here since I found it very helpful

I stumbled across this thread when I was about to ask about the international version...is there any chance you could post a video of this in action? Not that I don't believe this works, but I remember following a thread for the T-Mobile Springboard where a few people said a certain update would allow for phone/SMS, but then others who actively tried were unable to do so because of how T-Mobile picks up the IMEI (and doesn't let you use a phone SIM with a tablet).
If this works (and if it also keeps T-Mobile 4G), then this would be a MUCH better solution than buying an international 7.0 Plus (which is not only ~$200 more expensive on average but would only work on 2G on T-Mobile US).

Well, the T869 has SMS enabled natively. I got a "data only" pay-as-you-go plan for a 4G / WiFi hotspot earlier this year, and recently got the T869 with a contact. Both of these came with a 10 digit phone number for administrative purposes, and even the hotspot had the ability to receive SMS.
This particular trick doesn't do anything to the back end services themselves, so its not like you magically get phone service just by doing this.
I use a combination of SIP and Google Voice to do phone-type stuff without a phone.
I prefer this hack because it enables the native dialer, and pretty much all the good softphone solutions allow you to "integrate" with the native call log & dialer setup, so you just go to the normal "People" app and click someone's phone # and are then given an option to call them.
Without this hack, you must go into whatever 3rd party app you're using and initiate phone calls from there.
Remember, I initially started doing this on my WiFi Only GT-P3113 (which is basically a T869 without 4G or vibration).
I was never able to get the "Native" messaging app to behave quite right. There's a Google Voice SMS Integration app, and it can sync your GV texting into the native SMS app's text history, but it can't (or couldn't) trigger native SMS notifications correctly.
I am kinda over texting in general, as I have it piped through GoogleTalk. I receive SMS at my GoogleVoice phone #, and they are automatically forwarded to GoogleTalk via a third party web service called GVMax, which is free. GV Max is basically a GoogleVoice to XMPP bridge. After federating in my other IM accounts, GoogleTalk is now my one-stop-shop for textual communications.
Just my $0.02.
Isn't the "International" version so-called because its got a quad band radio that works on like any carrier?
Also, I have heard (though this is not confirmed) that the "International" edition doesn't come with an IR blaster, whereas the T869 does. I dunno if that's true or something you'd care about, but food for thought
magus57 said:
I stumbled across this thread when I was about to ask about the international version...is there any chance you could post a video of this in action? Not that I don't believe this works, but I remember following a thread for the T-Mobile Springboard where a few people said a certain update would allow for phone/SMS, but then others who actively tried were unable to do so because of how T-Mobile picks up the IMEI (and doesn't let you use a phone SIM with a tablet).
If this works (and if it also keeps T-Mobile 4G), then this would be a MUCH better solution than buying an international 7.0 Plus (which is not only ~$200 more expensive on average but would only work on 2G on T-Mobile US).
Click to expand...
Click to collapse

Well from what I remember, the reviews I read about the 7.0 Plus were regarding the international version and all of them mentioned an IR blaster - but regardless, that'd be one of my least-used features of the tablet. Kinda disappointed that it'd still only be calls over data - I think I'd pay the extra $200 and suffer 2G speeds (at least until T-Mobile 1900Mhz roll-out comes to Chicago) for GSM calls alone, as I'd rather not deal with a separate data plan or tethering data off my phone to get calls.

magus57 said:
Well from what I remember, the reviews I read about the 7.0 Plus were regarding the international version and all of them mentioned an IR blaster - but regardless, that'd be one of my least-used features of the tablet. Kinda disappointed that it'd still only be calls over data - I think I'd pay the extra $200 and suffer 2G speeds (at least until T-Mobile 1900Mhz roll-out comes to Chicago) for GSM calls alone, as I'd rather not deal with a separate data plan or tethering data off my phone to get calls.
Click to expand...
Click to collapse
Yeah that's kindof a deal breaker. Out here in Portland OR we have 4G in most places, and I'm either at work (in an office) or at home 90% of the time, where I have a high speed WiFi hookup, AND I almost never talk on the phone, so the data-only setup is perfect for guys like me.
GSM only would pretty much make that a dealbreaker, since I suspect the audio quality would be pretty terrible.

DivinityCycle said:
Yeah that's kindof a deal breaker. Out here in Portland OR we have 4G in most places, and I'm either at work (in an office) or at home 90% of the time, where I have a high speed WiFi hookup, AND I almost never talk on the phone, so the data-only setup is perfect for guys like me.
GSM only would pretty much make that a dealbreaker, since I suspect the audio quality would be pretty terrible.
Click to expand...
Click to collapse
While I do have a pretty stable 4G connection wherever I go (except for my brother's apartment, where ALL reception is horrible) or have access to my home's faster Wifi connection, and I don't talk much, I still get much better GSM service everywhere and can still get calls when I have to turn off data to save battery (since I use the data connection quite a bit when I'm away from a charger). And I haven't really had complaints with GSM audio or found voice over 4G/Wifi to be much clearer especially when the person on the other end is usually using GSM too..

I mean if you were doing some sorta data-only internet phone setup like SIP or GrooveIP or something. That's what I am using, and for it to sound alright you need decent bandwidth. Actually I ought to test out my stuff on a 2G connection and see how bad it is Should be interesting!

will this trick work on stock ICS build?

Galaxy t869
Does anyone know if this will allow making "regular" calls using my "regular" SIM CARD?
Thanks,
Jonathan

jon5407 said:
Does anyone know if this will allow making "regular" calls using my "regular" SIM CARD?
Thanks,
Jonathan
Click to expand...
Click to collapse
I seriously doubt it, no way to be truly sure without trying it though.

T869UVLG7 ICS phone call hack
Hey I'm one the noobs mentioned in your post. I'm living in the Bahamas and a proud owner of the T869.First I have no idea what the ROM.zip is and whether this is supposed to be done on a desktop or the tab itself.I am rooted but running UVLG7 ICS UPDATE.It'd be awesome if I could get this working .My sim card is data and 3g/4g ready.Could you please /anyone inform. Thanks to u guys with your mod skills they're mad skills.Thanks man

Thanks mate~~
I did this on the T869 originally locked to T-Mobile, and it worked without a problem~!!!!
PS: >>> Be sure to first wipe cache. I skipped that the first time and i almost created an atomic bomb
PPS: >>> Also, the backup revert.zip is a brilliant idea, it's what i used when i messed up the first time!

Hey mate!
thanks again for the tutorial!
I have followed it to completion.
I however, can only do simple things like loading airtime [our networks are prepaid] and check balance,
but I can't seem to be able to make calls
I have an unlocked T869
---------- Post added at 06:34 PM ---------- Previous post was at 06:33 PM ----------
dubblecup said:
Hey I'm one the noobs mentioned in your post. I'm living in the Bahamas and a proud owner of the T869.First I have no idea what the ROM.zip is and whether this is supposed to be done on a desktop or the tab itself.I am rooted but running UVLG7 ICS UPDATE.It'd be awesome if I could get this working .My sim card is data and 3g/4g ready.Could you please /anyone inform. Thanks to u guys with your mod skills they're mad skills.Thanks man
Click to expand...
Click to collapse
Hey,
are you trying to follow the tutorial and are having problems???
Please be a little more clear where you're stuck so we can help

-accidental double post-

Read the thread.
To quote myself: "This particular trick doesn't do anything to the back end services themselves, so its not like you magically get phone service just by doing this."
Also I have upgraded a couple of times since I posted about this crap and no longer use my Samsung (now using a Nexus 7 2013 which is way better)

[HELP NEEDED]unable to call or receive call

hello guys..
today when i woke up in the morning i found that i was unable to call anyone and also no one was able to call me. the strange thing is this that i was able to call yesterday night. my phone shows that i have full network connectivity and also my IMEI number is shown in about phone. thus i have not lost IMEI either. tried flashing different custom roms and also flashed stock jellybean via sp flash tools but none of these helped me...
also my sim is fully active. i am able to send and receive sms. and yes this sim is working flawlessly in my other phones and also i have tested some other sim in my phone but they are also not working.:crying:
GUYS CAN YOU PLEASE SUGGEST ME ANY SOLUTION BECAUSE I DO NOT WANT TO GO SERVICE CENTRE.

Here i am posting some screenshots....
Hope this one helps..
It clearly dipicts that imei is alright..network is available but still phone mobile network state is disconnected!!
Guys if you any solution than pls share. I really don't wanna go to service centre!

guys......no one have any solution here??:crying:
seems like i have to go to service centre because my have PHONE IS NOW A TABLET WITH NO CALLING FEATURE.

[email protected] said:
guys......no one have any solution here??:crying:
seems like i have to go to service centre because my have PHONE IS NOW A TABLET WITH NO CALLING FEATURE.
Click to expand...
Click to collapse
Try going to Mobile Network and select the Preferred network manually.

Hmm...tried that but still no solution!!
I think that there is some other problem because i am able to send and receive sms and also network bar is full.

[email protected] said:
Hmm...tried that but still no solution!!
I think that there is some other problem because i am able to send and receive sms and also network bar is full.
Click to expand...
Click to collapse
Do this "Go to dialer > setting (by press menu key) > voice call > call barring > select SIM > Cancel all
--------------------------------------------------------------------------------------------> call forwarding > select SIM > Disable all

[email protected] said:
Here i am posting some screenshots....
Hope this one helps..
It clearly dipicts that imei is alright..network is available but still phone mobile network state is disconnected!!
Guys if you any solution than pls share. I really don't wanna go to service centre!
Click to expand...
Click to collapse
Try using flash tool an start from scratch and flash any rom u like

Solved!!!
DONT KNOW HOW...
BUT TODAY I RECEIVED A CALL FROM MY FRIEND AND THEN I COME TO KNOW THAT THE PROBLEM IS SOLVED AUTOMATICALLY

[email protected] said:
Solved!!!
DONT KNOW HOW...
BUT TODAY I RECEIVED A CALL FROM MY FRIEND AND THEN I COME TO KNOW THAT THE PROBLEM IS SOLVED AUTOMATICALLY
Click to expand...
Click to collapse
I though of posting this here for the benefit of other users who might face problems at a later date. One of my friend had the same issue in Samsung S4 and it was utter confusions, sometimes he can make call while sometimes it just does not dial. Sometimes he could receive call while other times he just cannot receive, he can see the phone ringing, but it will refuse to attend the call. He used to hang on to the power button for more than 10 seconds and the phone used to restart and then it used to work fine. I have seen this issue happening more of in lower RAM phones but S4 well i too was confused.

COBSolutions said:
I though of posting this here for the benefit of other users who might face problems at a later date. One of my friend had the same issue in Samsung S4 and it was utter confusions, sometimes he can make call while sometimes it just does not dial. Sometimes he could receive call while other times he just cannot receive, he can see the phone ringing, but it will refuse to attend the call. He used to hang on to the power button for more than 10 seconds and the phone used to restart and then it used to work fine. I have seen this issue happening more of in lower RAM phones but S4 well i too was confused.
Click to expand...
Click to collapse
Hmm...your case is completely different. S4 hanged up as you told and became unresponsive at times. But when i faced this strange issue my phone responded well to other things. And it was not all because of ram. I have increased my ram and created a swap file of 300mb and is always having above 200mb ram free and that much is more than enough for attending any call. Moreover in s4 also i don't think it is simply because of ram.

Why i said one of the reason could be lower ram because i had someone else who used to face the same problem time and again on a 512 mb ram device.

COBSolutions said:
Why i said one of the reason could be lower ram because i had someone else who used to face the same problem time and again on a 512 mb ram device.
Click to expand...
Click to collapse
Android system have got the tendency of removing the old calculations of executed commands from RAM storage especially for the important processes like receiving a phone call etc etc.....
it can be because of some corrupted modem.img in my case.
AND MOREOVER I HAVE INCREASED RAM FROM 512 MB TO 812 MB BY MAKING SWAP FILE IN CACHE PARTITION. But if someone have 512 mb RAM then also it is sufficient for calls. Ram what i think has no touch in this issue. Moreover S4 has got 2GB of RAM na!!
So my phone is no longer a 512 MB RAM phone.

[email protected] said:
Android system have got the tendency of removing the old calculations of executed commands from RAM storage especially for the important processes like receiving a phone call etc etc.....
it can be because of some corrupted modem.img in my case.
AND MOREOVER I HAVE INCREASED RAM FROM 512 MB TO 812 MB BY MAKING SWAP FILE IN CACHE PARTITION. But if someone have 512 mb RAM then also it is sufficient for calls. Ram what i think has no touch in this issue. Moreover S4 has got 2GB of RAM na!!
So my phone is no longer a 512 MB RAM phone.
Click to expand...
Click to collapse
[email protected] said:
hello guys..
today when i woke up in the morning i found that i was unable to call anyone and also no one was able to call me. the strange thing is this that i was able to call yesterday night. my phone shows that i have full network connectivity and also my IMEI number is shown in about phone. thus i have not lost IMEI either. tried flashing different custom roms and also flashed stock jellybean via sp flash tools but none of these helped me...
also my sim is fully active. i am able to send and receive sms. and yes this sim is working flawlessly in my other phones and also i have tested some other sim in my phone but they are also not working.:crying:
GUYS CAN YOU PLEASE SUGGEST ME ANY SOLUTION BECAUSE I DO NOT WANT TO GO SERVICE CENTRE.
Click to expand...
Click to collapse
Just simple Go to settings> network & internet > mobile networks > advanced > preferred network type > LTE/WCDMA/GSM
iam 100% sure it will work out

[Q] Cant make calls with my phone anymore

Hi,
I have a big problem, i bought a Inew V3 about 3 weeks ago, and evrything worked fine
After a week or so i downloaded mobileuncle tools and just checked around what settings there was. I apparently changed something as i cannot make any calls or take any calls anymore..
I can send and get text SMS though and i can go on the internet aswell
When i try to make a call it says. "Call Forwarding" "On Conditional" and hangs up
I tried to reset the phone, still the same problem
I have also tried to flash another rom, and another sim card, but i still cant make any calls
SIM card works fine in my galaxy s2 with im using right now till i get this phone fixed
Settings on Phone App > Settings > Voice Call Settings > Call Forwarding
Always forward: Disabled
Forward when busy: Disabled
Also posted on another forum but noone could help me
Anyone know what i might have changed?
Would appreciate any help

nemla said:
Hi,
I have a big problem, i bought a Inew V3 about 3 weeks ago, and evrything worked fine
After a week or so i downloaded mobileuncle tools and just checked around what settings there was. I apparently changed something as i cannot make any calls or take any calls anymore..
I can send and get text SMS though and i can go on the internet aswell
When i try to make a call it says. "Call Forwarding" "On Conditional" and hangs up
I tried to reset the phone, still the same problem
I have also tried to flash another rom, and another sim card, but i still cant make any calls
SIM card works fine in my galaxy s2 with im using right now till i get this phone fixed
Settings on Phone App > Settings > Voice Call Settings > Call Forwarding
Always forward: Disabled
Forward when busy: Disabled
Also posted on another forum but noone could help me
Anyone know what i might have changed?
Would appreciate any help
Click to expand...
Click to collapse
Features provided by mobileuncle:
display device info
2 information of device and running status
3 easy open engineer mode and MTK engineer mode
4 backup IMEI for MTK mobile
5 recovery online update
6 easy update tool via sdcard
7 Enable USB Mass Storage Device,connect cable first
8 crack operator GPRS lock for MTK
9 free the network access limited via GPRS
10 power GPS search
11 Power the gps search satellite ability
12 enable AP
13 easy reboot to recovery
you can easily kill the carrier/band settings with this tool i think

LS.xD said:
Features provided by mobileuncle:
display device info
2 information of device and running status
3 easy open engineer mode and MTK engineer mode
4 backup IMEI for MTK mobile
5 recovery online update
6 easy update tool via sdcard
7 Enable USB Mass Storage Device,connect cable first
8 crack operator GPRS lock for MTK
9 free the network access limited via GPRS
10 power GPS search
11 Power the gps search satellite ability
12 enable AP
13 easy reboot to recovery
you can easily kill the carrier/band settings with this tool i think
Click to expand...
Click to collapse
Yeah, if i had the choice today i wouldnt use it
Anyone know what i could have changed based on reading about my problems?

Added screenshots of settings so if anyone wouldnt mind to compare their settings to mine in mobileuncle tools
Thanks

nemla said:
Added screenshots of settings so if anyone wouldnt mind to compare their settings to mine in mobileuncle tools
Thanks
Click to expand...
Click to collapse
MAN thats really a lot of settings.
I don't own this phone. In the seetings you will face "CFU" (Call forwarding unconditioned) what means always forward calls. Screenshot shows "default" you can also choose always query OR always not query
Thats clearly RELATED to the call forwarding. May be try both setting.
BTW have you simply tried out the other simslot?

LS.xD said:
MAN thats really a lot of settings.
I don't own this phone. In the seetings you will face "CFU" (Call forwarding unconditioned) what means always forward calls. Screenshot shows "default" you can also choose always query OR always not query
Thats clearly RELATED to the call forwarding. May be try both setting.
BTW have you simply tried out the other simslot?
Click to expand...
Click to collapse
Hi!
Yeah, ALOT of setting, regretting i downloaded the program..
Just tried all on CFU, still dosent work.. And i tried both simslots, bought a adapter so i could test both
Thanks for the quick answer!

nemla said:
Hi!
Yeah, ALOT of setting, regretting i downloaded the program..
Just tried all on CFU, still dosent work.. And i tried both simslots, bought a adapter so i could test both
Thanks for the quick answer!
Click to expand...
Click to collapse
Next: Type/dial ##002# as it will deavtivate all conditional forwarding
That will help in most cases.
Just for your information: "conditional forwarding" settings are stored to your provider NOT to your sim // telephone. The phone will just read out the provider settings stored for BUT NOT actually to you simcard.

LS.xD said:
Next: Type/dial ##002# as it will deavtivate all conditional forwarding
That will help in most cases.
Just for your information: "conditional forwarding" settings are stored to your provider NOT to your sim // telephone. The phone will just read out the provider settings stored for BUT NOT actually to you simcard.
Click to expand...
Click to collapse
Tried the ##002# now and still dosent work.
So it must be something else than conditional forwarding
If i take out the sim and put it back in my old phone(galaxy s2) it works perfect
Anyone else that has an idea?
Thanks again for the reply

nemla said:
Tried the ##002# now and still dosent work.
So it must be something else than conditional forwarding
If i take out the sim and put it back in my old phone(galaxy s2) it works perfect
Anyone else that has an idea?
Thanks again for the reply
Click to expand...
Click to collapse
Just to be clear about it:
Have you performed getting phone fully back to stock? Not flashing a rom BUT using the manufactirers files? They should delete everything and set phone back to FULL stock as it seems the issue is "stored" in the phone and not to your sim

Pop up "managed roaming" on the screen every 15 seconds

Hello everyone,
Let me submit here a problem that rots me life:I have a Xiaomi Mi4i and despite the updated 5.9.16, I have a problem with pop-up that appears every 30 seconds indicating the "Managed Roaming (Sub1) ....
sorry I'm not allowed to post a screenshot on this forum but you can see it folowing this link ( by replacing dashes by what is missing): h--p://w-w.hostingpics.net/viewer.php?id=168394Screenshot20150920200955.png
It is a message that tells you that your network operator you manually select from one of two sim cards is not captured and invites you to choose another manually or set to automatic mode.I'm forced to choose between cancel or ok to make disappear this message that highlights on the screen and causing interference on my running applications. Since I am in the border area, and that according to the side where I am of the border, there is always one of the two SIM cards no longer picks up the signal. I can not afford to let the sim cards in the automatic mode because roaming is too expensive and it's also the reason that made me choose this dual sim. Suddenly, the pop-up turns on the screen every 15 sercondes and it rots me, every time I pick up the phone I need to click cancel and it turns round. It annoys me so much that if I do not find a solution I'll have to buy another phone ... It's so stupid but I have no solution, I had the same problem with a MI2 2 years ago and I had to put it in a drawer ... I thought that since that time, problem had been resolved. But I can not be the one to meet this concern all the same! I tried everything without success.
I specify that I tried all possible versions miui and the problem is the same.
I think it is imperative that developers delete this message pop-up screen and simply leave the choice to seek a network from the notifications bar !!! I have a bottle thrown into the sea via the application "BUG" pending .. If someone has another solution waiting for the grace of an update includes a fix, I'd be eternally grateful to him ...

Please, can someone help me? I do not know what to do, this problem makes my phone unusable!

Yep, happens to me too. There are some weird bugs in MIUI.

mandarin91 said:
Yep, happens to me too. There are some weird bugs in MIUI.
Click to expand...
Click to collapse
Yes what a pity, I should have stayed on a standard model because Miui is for those who love having problems ....

This fuuccccck pop up....lost signal and then pop up simultaneous...how to delete forever this pop up

It's 2018 and the problem still here, but there's good news. I know it's an old thread, but this provides a possible solution. On Android 8, on the Available Networks screen, you can tap Choose Automatically and the problem stops, even if you are unable to connect to a network. Might also work for other android versions.

I have xiaomi a1 and still same problem.
If I put on automatic, phone will change to roaming network and I dont want that!
Im still on stock rom. If I take some custom rom will I have same problem.
Anybody know?????

SMS not sent in Poco X3 (karna) (Indian version)

Heyy Guys,
I'm creating this post after facing terrible issues and embarrassing situations because I can't send sms from my Poco X3. It's a new phone and barely a month old, and I've tried uninstalling updates for career services app, Google messages app rebooting the phone and what not!! Still rarely on some lucky day I can send sms and rest of the time I can't..!! It's really frustrating when you need to do online payment and need to send a verification text..!
Thankfully @Dandito from XDA forum replied to a thread for another poco phone and he said that
"The problem is existing only when the VOLTE service is enabled. Try to move on 3G only or just stop Volte under 4G and it will be ok. Unfortunately Xiaomi are using some specific technology for volte sms sending and the your network provider does not support it. The phone is trying to send SMS through SS7 instead of SIP protocol when VoLTE is enabled. I'm trying to find a hidden menu where I can eventually switch or choose a protocol but without success."
This fix worked for me miraculously therefore kudos to him for finding this..!! Respect+++++++ for this guy!!!
Now if anyone can find a fix for using volte and sending sms at the same time then please please do reply to this thread!! I'm trying my best to find a solution but your help would be great too!!
I did some tests and I have new findings..! Please hear me out!
I can't send sms from my sim in poco x3 when volte is on!!! And when it's off then also rarely it works... sometimes I can't receive any otp on this phone!!
Do note that this idea 4g sim works perfectly and can send and receive sms in my realme 1 with volte on !
Now other sim cards work perfectly in my poco x3!! I tried everyones sim in my house and it worked fine..!!
Now if I complain to idea people then they'll say that it works well on another phone so please complain to phone company..!
And if I go to poco then they'll say that change your simcard as other sim works fine!!!
I'm genuinely tired and frustrated and I get heavy embarrassed while making online payments and imp work stuff!! Sending and receiving SMS is fundamental and necessary and this is barely a month old device!!!
Guys any suggestions would be heavily appreciated

I use Volte on both my SIMS and send SMS normally. Jio and Vi (Vodafone Idea).

Alrich said:
I use Volte on both my SIMS and send SMS normally. Jio and Vi (Vodafone Idea).
Click to expand...
Click to collapse
Lucky man..!! But wait! Which rom do you have?

krutangdesai said:
Lucky man..!! But wait! Which rom do you have?
Click to expand...
Click to collapse
Regular stock ROM that came with my phone.
MIUI 12.0.8. Are you sure this is an actual problem that exists or something wrong particularly with your device. I haven't heard of anyone having this problem of being unable to send SMS while on VoLTE. I have multiple devices and multiple providers and they work fine on all of them too.

I did some tests and I have new findings..!! Please hear me out!
I can't send sms from my sim in poco x3 when volte is on!!! And when it's off then also rarely it works... sometimes I can't receive any otp on this phone!!
Do note that this idea 4g sim works perfectly and can send and receive sms in my realme 1 with volte on !
Now other sim cards work perfectly in my poco x3!! I tried everyones sim in my house and it worked fine..!!
Now if I complain to idea people then they'll say that it works well on another phone so please complain to phone company..!
And if I go to poco then they'll say that change your simcard as other sim works fine!!!
I'm genuinely tired and frustrated and I get heavy embarrassed while making online payments and imp work stuff!! Sending and receiving SMS is fundamental and necessary and this is barely a month old device!!!
Guys any suggestions would be heavily appreciated

Well since your steps of troubleshooting have failed to reach a singular conclusion, I have a feeling that something got messed up during original pairing of your phone and that particular SIM card.
One test says your phone is fine because other SIMS do their job just fine.
Other test says your SIM is fine because if you put it in another phone and they do their job fine.
Which leads me to one conclusion. There is some kind of pairing glitch with that particular SIM and your phone.
I have only a few suggestions. And you might want to do them ANYWAY.
1: Go to Idea (now Vi) showroom, ask for a replacement SIM. You don't need to explain to them why you need it. Just say it doesn't work or it's scratched. Don't tell them about it working on other phones etc. New SIM costs around 30 - 100 depending if they follow official process or want money in their pockets. Activates within 4 hours with the same plan but OTP will not work for 24 hours.
2: In the meanwhile or if you can't get a replacement SIM use Isopropyl alcohol and clean the current SIM you have.
3: Factory reset your phone WITHOUT your SIM inside and set it up fully without the SIM. (Make sure you remove your Google Account before the Factory Reset.)
4: Last if all else fails. Take your phone to Mi Service Center and make up some stupid reason and ask them to flash your phone. Tell them you have already Factory Reset (3 times 4 times etc) and that it didn't work. By default they automatically will jump to Flashing it, no questions asked.
They will also flash a version of MIUI around 1 or 2 versions behind current version.
All the best and please update after trying these steps.

Alrich said:
Well since your steps of troubleshooting have failed to reach a singular conclusion, I have a feeling that something got messed up during original pairing of your phone and that particular SIM card.
One test says your phone is fine because other SIMS do their job just fine.
Other test says your SIM is fine because if you put it in another phone and they do their job fine.
Which leads me to one conclusion. There is some kind of pairing glitch with that particular SIM and your phone.
I have only a few suggestions. And you might want to do them ANYWAY.
1: Go to Idea (now Vi) showroom, ask for a replacement SIM. You don't need to explain to them why you need it. Just say it doesn't work or it's scratched. Don't tell them about it working on other phones etc. New SIM costs around 30 - 100 depending if they follow official process or want money in their pockets. Activates within 4 hours with the same plan but OTP will not work for 24 hours.
2: In the meanwhile or if you can't get a replacement SIM use Isopropyl alcohol and clean the current SIM you have.
3: Factory reset your phone WITHOUT your SIM inside and set it up fully without the SIM. (Make sure you remove your Google Account before the Factory Reset.)
4: Last if all else fails. Take your phone to Mi Service Center and make up some stupid reason and ask them to flash your phone. Tell them you have already Factory Reset (3 times 4 times etc) and that it didn't work. By default they automatically will jump to Flashing it, no questions asked.
They will also flash a version of MIUI around 1 or 2 versions behind current version.
All the best and please update after trying these steps.
Click to expand...
Click to collapse
Dayyyyuuummmm...!! I'll definitely try that Man...!! Thanks a lot for those suggestions...!! Will surely update here in detail once the issue is resolved..!

For reference, I faced a similar issue with my Idea SIM after I got it replaced once. I could NOT absolutely make any calls on 3G.
Everyone's SIM in my phone the calls worked fine, my SIM in others phones ALSO worked fine for making calls on 3G. But there was something particularly wrong with this CURRENT SIM and my PHONE together.
I got a new SIM for 30/-
It got activated within 20 minutes.
Everything works fine now.
(No needed to Factory Reset)
It's some pairing miscommunication that occurs at the time of activation and that error somehow stays with the card and phone combined. I'm not an expert on this so I could be wrong.
Technology is weird.

Alrich said:
For reference, I faced a similar issue with my Idea SIM after I got it replaced once. I could NOT absolutely make any calls on 3G.
Everyone's SIM in my phone the calls worked fine, my SIM in others phones ALSO worked fine for making calls on 3G. But there was something particularly wrong with this CURRENT SIM and my PHONE together.
I got a new SIM for 30/-
It got activated within 20 minutes.
Everything works fine now.
(No needed to Factory Reset)
It's some pairing miscommunication that occurs at the time of activation and that error somehow stays with the card and phone combined. I'm not an expert on this so I could be wrong.
Technology is weird.
Click to expand...
Click to collapse
Also one wierd little detail I'd like to share..! As we have Google apps in dialer and messages....and this is for messages app in particular..! Whenever I receivet these flash message or pop-ups of remaining balance or recharge expiry days left after every phone call or sms..... then in my current sim card it comes as a full page banner anything that's currently running will be interrupted unless I cancel that persistent flash message and then continue my work...like full opaque page no transparent or translucent or anything!! And if I put other sim cards then it'll literally show up in the bottom without any interruption!! Just a small place at the bottom of screen...!!! Such wierd stuff happens man! I still can't figure out the reason for that!! Both sim of same company and same recharge plans...still they have completely different behaviour and quality.... technology is genuinely wierd

krutangdesai said:
Also one wierd little detail I'd like to share..! As we have Google apps in dialer and messages....and this is for messages app in particular..! Whenever I receivet these flash message or pop-ups of remaining balance or recharge expiry days left after every phone call or sms..... then in my current sim card it comes as a full page banner anything that's currently running will be interrupted unless I cancel that persistent flash message and then continue my work...like full opaque page no transparent or translucent or anything!! And if I put other sim cards then it'll literally show up in the bottom without any interruption!! Just a small place at the bottom of screen...!!! Such wierd stuff happens man! I still can't figure out the reason for that!! Both sim of same company and same recharge plans...still they have completely different behaviour and quality.... technology is genuinely wierd
Click to expand...
Click to collapse
Same issue with my new Vi SIM. (Didn't happen when it was iDea SIM on the same phone). I have tried every possible thing to block this behavior including contacting my service provider to let them know I don't need the messages cause I'm on Unlimited pack.
This is more to do an issue with the way Vi sends those messages as a priority/emergency and not as a regular USSD message.

Alrich said:
Well since your steps of troubleshooting have failed to reach a singular conclusion, I have a feeling that something got messed up during original pairing of your phone and that particular SIM card.
One test says your phone is fine because other SIMS do their job just fine.
Other test says your SIM is fine because if you put it in another phone and they do their job fine.
Which leads me to one conclusion. There is some kind of pairing glitch with that particular SIM and your phone.
I have only a few suggestions. And you might want to do them ANYWAY.
1: Go to Idea (now Vi) showroom, ask for a replacement SIM. You don't need to explain to them why you need it. Just say it doesn't work or it's scratched. Don't tell them about it working on other phones etc. New SIM costs around 30 - 100 depending if they follow official process or want money in their pockets. Activates within 4 hours with the same plan but OTP will not work for 24 hours.
2: In the meanwhile or if you can't get a replacement SIM use Isopropyl alcohol and clean the current SIM you have.
3: Factory reset your phone WITHOUT your SIM inside and set it up fully without the SIM. (Make sure you remove your Google Account before the Factory Reset.)
4: Last if all else fails. Take your phone to Mi Service Center and make up some stupid reason and ask them to flash your phone. Tell them you have already Factory Reset (3 times 4 times etc) and that it didn't work. By default they automatically will jump to Flashing it, no questions asked.
They will also flash a version of MIUI around 1 or 2 versions behind current version.
All the best and please update after trying these steps.
Click to expand...
Click to collapse
Heyy Man! I got a sim replacement from vi yesterday..I had an idea sim and now it's vi.... and 24 hours later sms services are available so today I tested everything and everything works perfectly fine! I can send sms even when volte is on.... and regarding that annoying full page balance remaining pop up...I just switched my default sms app to signal coz truecaller has already so much of our info and signal seems to respect privacy and also because why not and it's damn awesome you get those alerts in the notification shade now.. which is where they should be... and I hope to not face this issue ever again... Thanks a lot for all the help brother!! Cheers for life

krutangdesai said:
Heyy Man! I got a sim replacement from vi yesterday..I had an idea sim and now it's vi.... and 24 hours later sms services are available so today I tested everything and everything works perfectly fine! I can send sms even when volte is on.... and regarding that annoying full page balance remaining pop up...I just switched my default sms app to signal coz truecaller has already so much of our info and signal seems to respect privacy and also because why not and it's damn awesome you get those alerts in the notification shade now.. which is where they should be... and I hope to not face this issue ever again... Thanks a lot for all the help brother!! Cheers for life
Click to expand...
Click to collapse
I'm glad to be of help. I knew the issue was with that particular SIM pairing. Here's some bonus information for you.
Type *199# in VI
Then send 2
Then send 2
Then send 4
This will stop the Data Notification.
If I have genuinely helped you please give all the comments I've made that helped you a THUMBS UP.
That would really be appreciated on XDA

krutangdesai said:
Heyy Guys,
I'm creating this post after facing terrible issues and embarrassing situations because I can't send sms from my Poco X3. It's a new phone and barely a month old, and I've tried uninstalling updates for career services app, Google messages app rebooting the phone and what not!! Still rarely on some lucky day I can send sms and rest of the time I can't..!! It's really frustrating when you need to do online payment and need to send a verification text..!
Thankfully @Dandito from XDA forum replied to a thread for another poco phone and he said that
"The problem is existing only when the VOLTE service is enabled. Try to move on 3G only or just stop Volte under 4G and it will be ok. Unfortunately Xiaomi are using some specific technology for volte sms sending and the your network provider does not support it. The phone is trying to send SMS through SS7 instead of SIP protocol when VoLTE is enabled. I'm trying to find a hidden menu where I can eventually switch or choose a protocol but without success."
This fix worked for me miraculously therefore kudos to him for finding this..!! Respect+++++++ for this guy!!!
Now if anyone can find a fix for using volte and sending sms at the same time then please please do reply to this thread!! I'm trying my best to find a solution but your help would be great too!!
I did some tests and I have new findings..! Please hear me out!
I can't send sms from my sim in poco x3 when volte is on!!! And when it's off then also rarely it works... sometimes I can't receive any otp on this phone!!
Do note that this idea 4g sim works perfectly and can send and receive sms in my realme 1 with volte on !
Now other sim cards work perfectly in my poco x3!! I tried everyones sim in my house and it worked fine..!!
Now if I complain to idea people then they'll say that it works well on another phone so please complain to phone company..!
And if I go to poco then they'll say that change your simcard as other sim works fine!!!
I'm genuinely tired and frustrated and I get heavy embarrassed while making online payments and imp work stuff!! Sending and receiving SMS is fundamental and necessary and this is barely a month old device!!!
Guys any suggestions would be heavily appreciated
Click to expand...
Click to collapse
To set or change the SMS service center number on your SIM card​
From your Home screen, tap the Application screen icon.
Find and tap Phone.
If the dialpad does not appear, tap the dialpad icon.
Type *#*#4636#*#*.
Tap Phone information.
Scroll down to SMSC.
Tap Refresh to get the current number and the format it uses. If Refresh error or Update error appears, contact your network operator.
Enter the relevant SMSC number in the input field using the correct format with in "", then tap Update. If Update error appears, contact your network operator.