I can't send or receive MMS unless I unroot :( - Galaxy S 4 Q&A, Help & Troubleshooting

So I know this is a weird issue. I've done my research and tested way too many times before posting this up
OK, so the problem is that I can't send or receive MMS on my LTE network. Also, I believe this causes me to have problems with my GPS as it sometimes it can be detected and sometimes it won't.
The steps I've taken to rectify the problem:
1. Completely unrooted phone and flashed stock firmware from sammobile.com.
2. Checked if MMS and maps were working on the stock firmware and they were. I checked the USSD code using *#1234# in the dialer and it was working.
3. Done the rooting process and flashed new recovery and new ROM.
4. Tried to send MMS and issue persisted again. Also, when I send the MMS it disconnects my LTE and stays disconnected till I reconnect again.
5. I checked the USSD again and it says "Connection problem or invalid MMI code"
6. I have flashed so many different modems and bootloaders and the problem is still there. Unless I unroot and stick to my network provided ROM.
7. I checked APN settings, manually set new ones up using the network APN settings and still nothing.
What is the problem here? Is it my phone? A hardware issue? WHAT THE..
Any help is appreciated :fingers-crossed::fingers-crossed::fingers-crossed:

gspotr said:
So I know this is a weird issue. I've done my research and tested way too many times before posting this up
OK, so the problem is that I can't send or receive MMS on my LTE network. Also, I believe this causes me to have problems with my GPS as it sometimes it can be detected and sometimes it won't.
The steps I've taken to rectify the problem:
1. Completely unrooted phone and flashed stock firmware from sammobile.com.
2. Checked if MMS and maps were working on the stock firmware and they were. I checked the USSD code using *#1234# in the dialer and it was working.
3. Done the rooting process and flashed new recovery and new ROM.
4. Tried to send MMS and issue persisted again. Also, when I send the MMS it disconnects my LTE and stays disconnected till I reconnect again.
5. I checked the USSD again and it says "Connection problem or invalid MMI code"
6. I have flashed so many different modems and bootloaders and the problem is still there. Unless I unroot and stick to my network provided ROM.
7. I checked APN settings, manually set new ones up using the network APN settings and still nothing.
What is the problem here? Is it my phone? A hardware issue? WHAT THE..
Any help is appreciated :fingers-crossed::fingers-crossed::fingers-crossed:
Click to expand...
Click to collapse
Which custom rom?

Lennyz1988 said:
Which custom rom?
Click to expand...
Click to collapse
Here bro..

Hi,
gspotr said:
4. Tried to send MMS and issue persisted again. Also, when I send the MMS it disconnects my LTE and stays disconnected till I reconnect again.
Click to expand...
Click to collapse
I have no answer to this, but you're not alone.
See : http://forum.xda-developers.com/galaxy-s4/help/i9506-temaseks-unofficial-cyanogenmod-t3204676
As far as I can tell, we're both having the same issue with MMS.
I recently tried various things, including a fresh ROM re-install (with everything wiped) : with the stock ROM, MMS are working fine but with anything CM 12.1 based, they aren't (unless I'm connected to WiFi, as I explained in my post, which points to a data connection management issue).
I also tried the latest modem available (CM 12.1 based roms were using XXUDOC5, I'm now on XXUDOF2), to no avail.
Have a nice day all

Felindril said:
Hi,
I have no answer to this, but you're not alone.
See : http://forum.xda-developers.com/galaxy-s4/help/i9506-temaseks-unofficial-cyanogenmod-t3204676
As far as I can tell, we're both having the same issue with MMS.
I recently tried various things, including a fresh ROM re-install (with everything wiped) : with the stock ROM, MMS are working fine but with anything CM 12.1 based, they aren't (unless I'm connected to WiFi, as I explained in my post, which points to a data connection management issue).
I also tried the latest modem available (CM 12.1 based roms were using XXUDOC5, I'm now on XXUDOF2), to no avail.
Have a nice day all
Click to expand...
Click to collapse
Hey bro, thank you for your reply.
I have the same issue. It works when I'm on Wi-Fi too.. so no solution to this? =(

gspotr said:
Hey bro, thank you for your reply.
I have the same issue. It works when I'm on Wi-Fi too.. so no solution to this? =(
Click to expand...
Click to collapse
http://forum.xda-developers.com/search.php?searchid=388567062
As that rom is based on this rom, search this thread for anything related to mms. If it works on wifi then it's 100% a wrong apn setting or maybe a bug.

Lennyz1988 said:
http://forum.xda-developers.com/search.php?searchid=388567062
As that rom is based on this rom, search this thread for anything related to mms. If it works on wifi then it's 100% a wrong apn setting or maybe a bug.
Click to expand...
Click to collapse
It's definitely a bug. I've already tried everything to do with my providers APN. I installed so many modems as well no luck whatever. I'm pretty sure is an easy, small script that is an easy fix for a developer =/

gspotr said:
It's definitely a bug. I've already tried everything to do with my providers APN. I installed so many modems as well no luck whatever. I'm pretty sure is an easy, small script that is an easy fix for a developer =/
Click to expand...
Click to collapse
I don't think the fix is that easy for them because there are already a few patches applied in the past for MMS. Your best bet would still be to search that thread I gave you and see if someone came up with a fix.

Lennyz1988 said:
http://forum.xda-developers.com/search.php?searchid=388567062
Click to expand...
Click to collapse
Thanks but we cannot use that search link you gave us... ("Sorry - no matches. Please try some different terms. ")
Which thread were you pointing at, please ?
Cheers !

Felindril said:
Thanks but we cannot use that search link you gave us... ("Sorry - no matches. Please try some different terms. ")
Which thread were you pointing at, please ?
Cheers !
Click to expand...
Click to collapse
http://forum.xda-developers.com/gal...lop/exclusive-antaresone-alucard24-s-t3066696
Search for "mms".

Lennyz1988 said:
http://forum.xda-developers.com/gal...lop/exclusive-antaresone-alucard24-s-t3066696
Search for "mms".
Click to expand...
Click to collapse
Thanks bro, I'll give it a go when I get home from work tonight..

Lennyz1988 said:
Search for "mms".
Click to expand...
Click to collapse
Thanks a lot, the fix was in there : http://forum.xda-developers.com/gal...lucard24-s-t3066696/post62511742#post62511742
I'm still wondering why that fix that's been added in CM 12.1 since august wasn't in our "custom" CM 12.1 roms but still... IT WORKS !
Have a nice day !

Related

[Q] Problem with Wifi Passwords....

After updating to the 4.4.2 my wifi passwords disapeared and i have to retype them everytime (!!!) i want to connect....
The same problem with 2 other friends with the exact same procedure. Anyone esle has this problem and how to correct it.
I thought it was a sychronization problem but the same problem wiht the the other 2 confused me.
Thank in advance
andr3as said:
After updating to the 4.4.2 my wifi passwords disapeared and i have to retype them everytime (!!!) i want to connect....
The same problem with 2 other friends with the exact same procedure. Anyone esle has this problem and how to correct it.
I thought it was a sychronization problem but the same problem wiht the the other 2 confused me.
Thank in advance
Click to expand...
Click to collapse
Hi,
i have the same problem and when i connect wifi or 4g mobile data appear "remote controls stoped"
If you solved the problem reply please.
Thanks in advance
Markudsc said:
Hi,
i have the same problem and when i connect wifi or 4g mobile data appear "remote controls stoped"
If you solved the problem reply please.
Thanks in advance
Click to expand...
Click to collapse
I think the problem is because of updating the rom without clean install... Maybe a clean install will fix everything...
andr3as said:
I think the problem is because of updating the rom without clean install... Maybe a clean install will fix everything...
Click to expand...
Click to collapse
Hi @andr3as,
Thanks for your concern,
I've already fix the problem, i don't understand how i fixed but i think it haves to be about the accounts we signed on settings>accounts
what interest is my n9005 is 99% functional,
For to be 100% the mobile data must be switch on automatically when i send or receive an mms, but for now i'm glad to fix this issue.
thanks again.
Markudsc said:
Hi @andr3as,
Thanks for your concern,
I've already fix the problem, i don't understand how i fixed but i think it haves to be about the accounts we signed on settings>accounts
what interest is my n9005 is 99% functional,
For to be 100% the mobile data must be switch on automatically when i send or receive an mms, but for now i'm glad to fix this issue.
thanks again.
Click to expand...
Click to collapse
hi,dear friend,i also get this problem so many days,and it troblem me again and again,i reflash stock rom with odin and kies,but also failed to resolve it,so could you tell me how do you fix it?many thanks with my heart。waiting ur replay,thanks。
Sent from my SM-N9005 using xda app-developers app
The problem is pure firmware problem. Just update to the latest or flash a custom firmware...
Disable Samsung Account Sync & Backup.

[Q] i9505 - No reception, black screenfreeze, no sound

Hey all, i got this serious problem.
I've flashed most of the cutom roms right after buying the phone but at some moment i decided i wanted to return to stock again as the phone was behaving weird. I did, was a TNL 4.3 dutch stock rom. After some months i began to encounter no reception problems, it first started once a week for a whole day then it was 3 days problems 1 day reception. I then decided to flash a new 4.4 custom rom to see if it solves the issue but it didnt, i tried to flash a 4.3 rom and then the no sound/black screen/ phone dialer freezes started to occur. I flashed the 4.4 UFNA1 modem, it still persists, i flashed the nightly 4.4 rom and reflashed the UFNA1 modem twice (which was done correctly) and i still have no sound etc... What am i doing wrong here? I feel terrible as i also have no warranty left ofcourse.. Btw. I tried flashing to several stock roms by ODIN which coused the program to freeze and the phone went into a bootloop, which could be fixed by just flashing a custom recovery, and after that ofcourse a custom rom.. Very strange! Someone has an idea??
thanks
Can anyone help me?
kilkil said:
Can anyone help me?
Click to expand...
Click to collapse
Download and extract this file then flash the .Tar file via odin by selecting CP
Repulsa said:
Download and extract this file then flash the .Tar file via odin by selecting CP
Click to expand...
Click to collapse
It actually worked. Thanks!
There's only this thing, which i can't test atm, but the sim reception problem i talked about, will that be fixed too?? That's the biggest issue and iv've read a lot about it on the net, nobody could seem to fix it. Lots of em said it was an internal error which got fixed by their warranty (they say they got new phones, up till 3 times..) They tried replacing sim/sd bay which didn't solve a thing. Anyone else experiencing this problem and got it fixed??
thanks
kilkil said:
It actually worked. Thanks!
There's only this thing, which i can't test atm, but the sim reception problem i talked about, will that be fixed too?? That's the biggest issue and iv've read a lot about it on the net, nobody could seem to fix it. Lots of em said it was an internal error which got fixed by their warranty (they say they got new phones, up till 3 times..) They tried replacing sim/sd bay which didn't solve a thing. Anyone else experiencing this problem and got it fixed??
thanks
Click to expand...
Click to collapse
Try to change the modem ,base from your countryprovider mate , and feel free to check it from here which Modem you need .then Download the modem from here and try to Set your apn as well / and try to Change the network mode to GSM/WCDM or something . Lastly hit that thanks button for me
Repulsa said:
Try to change the modem ,base from your countryprovider mate , and feel free to check it from here which Modem you need .then Download the modem from here and try to Set your apn as well / and try to Change the network mode to GSM/WCDM or something . Lastly hit that thanks button for me
Click to expand...
Click to collapse
Hey, didn't i just flash a modem? Which fixed the sound/freeze bug etc? What if i reflash another (4.3) one and get that old problem again? (im on 4.4.2) I tried selected gsm/lte/wcdma settings manually, the phone was totally dead. My little brother who owns exactly the same phone and carrier (tmobile) have had 0 problems with his phone, he never touched it though and only recently upgraded to 4.3 by KIES. I tried switching out sim cards and my card worked on his phone, but his card didn't work on mine.
kilkil said:
Hey, didn't i just flash a modem? Which fixed the sound/freeze bug etc? What if i reflash another (4.3) one and get that old problem again? (im on 4.4.2) I tried selected gsm/lte/wcdma settings manually, the phone was totally dead. My little brother who owns exactly the same phone and carrier (tmobile) have had 0 problems with his phone, he never touched it though and only recently upgraded to 4.3 by KIES. I tried switching out sim cards and my card worked on his phone, but his card didn't work on mine.
Click to expand...
Click to collapse
You can Flash any GSM modem you like mate and The file i gave you Which solve your Sound issue was the one i repacked GSM+LTE combined packaged. and about the Network Mode , like i said choose one then reboot (Play with it). and make sure to setup your APN.
Repulsa said:
You can Flash any GSM modem you like mate and The file i gave you Which solve your Sound issue was the one i repacked GSM+LTE combined packaged. and about the Network Mode , like i said choose one then reboot (Play with it). and make sure to setup your APN.
Click to expand...
Click to collapse
I will look into this, thanks for your time!
kilkil said:
I will look into this, thanks for your time!
Click to expand...
Click to collapse
We already fixed the Sound problem and Im sure that signal Dropping issue can fix it easy just flashing a different modem/ or setup the right APN.
Hey all, the XXUFNA5 modem helped out great, untill today where i'm getting no reception at all again.. i'm on the Google Edition 4.4.2 rom prerooted for about 3 days. My speeds and reception were great before this and had no sound/freezing issues aswell. Anybody know what to do?? If i look in the REF modem topic, it's not showing any new modems? Am i missing something? Thanks in advance!!!
Edit* it seems in Holland they are using this modem -> I9505XXUFNC4
Cant find it anywhere though, any tips??
Thanks
kilkil said:
Hey all, the XXUFNA5 modem helped out great, untill today where i'm getting no reception at all again.. i'm on the Google Edition 4.4.2 rom prerooted for about 3 days. My speeds and reception were great before this and had no sound/freezing issues aswell. Anybody know what to do?? If i look in the REF modem topic, it's not showing any new modems? Am i missing something? Thanks in advance!!!
Edit* it seems in Holland they are using this modem -> I9505XXUFNC4
Cant find it anywhere though, any tips??
Thanks
Click to expand...
Click to collapse
Come on guys, not one reply? This is urgent, need some help!
I'm having this reception problem ever since I got this phone from my friend overseas I tried everything flash stock ROM ,change modems, flash custom roms and still no signal I tried different Sim cards also, I'm guessing maybe something is wrong with the main board? So I just gave up and started using it as a media phone alone

HELP! WiFi Issues

Sorry I'm a noon, don't do all those font sizes and colours and pictures aha but basically... I've been on CyanogenMod for about a year now and have never had WiFi issues. Been using cm12 nightlies for most of this year with no problem however, after updating my nightly the past two days I've been experiencing WiFi Drops happening every min and a half or so. So annoying. I've used Wifix apps etc, no luck. I've reverted to old night lies I used to run without any problems however the problem stays. I've consider flashing back to TouchWiz to see if that helps it but I really don't want to
Can someone please help me. My phone is on contract and my bill is overdue so I won't have mobile data until it's cleared (around June) so if I don't have WiFi, I'm screwed.
S4
tyrelldk_ said:
Sorry I'm a noon, don't do all those font sizes and colours and pictures aha but basically... I've been on CyanogenMod for about a year now and have never had WiFi issues. Been using cm12 nightlies for most of this year with no problem however, after updating my nightly the past two days I've been experiencing WiFi Drops happening every min and a half or so. So annoying. I've used Wifix apps etc, no luck. I've reverted to old night lies I used to run without any problems however the problem stays. I've consider flashing back to TouchWiz to see if that helps it but I really don't want to
Can someone please help me. My phone is on contract and my bill is overdue so I won't have mobile data until it's cleared (around June) so if I don't have WiFi, I'm screwed.
S4
Click to expand...
Click to collapse
Have you tried flashing a new modem? This generally fixes wifi (and sound issues if there are any)
I barely know what a modem is haha but if that's the case, I'll try today.
Here you have a list of modems. Read the topic as it also has some info and the flashing guide.
You need to go to sammobile firmware checker and input your phone model, country and carrier. Then it will show you the correct firmware for your country and carrier. Based on that, download the modem. Make sure you get the latest modem. If you can't find the latest modem on the linked thread, there was another thread with all the latest modems, but I can't seem to find it anymore.
GDReaper said:
Here you have a list of modems. Read the topic as it also has some info and the flashing guide.
You need to go to sammobile firmware checker and input your phone model, country and carrier. Then it will show you the correct firmware for your country and carrier. Based on that, download the modem. Make sure you get the latest modem. If you can't find the latest modem on the linked thread, there was another thread with all the latest modems, but I can't seem to find it anymore.
Click to expand...
Click to collapse
I'm on 5.02 CM12, I downloaded the latest modem for my GT-I9505 which matched the firmware code for a 4.4.2 S4 however still no luck ffs. This is really annoying, i don't know how my WiFi could jist shut off on me like that :/. Looks like I'm going to have to buy myself a new phone then. Can't use my mobile data for a couple months as my carrier has blocked me until I pay off my bill and now with my wifi disconnecting every 2 mins, I basically cannot use the internet. So frustrated.
I've flashed new nightlies, changed baseband versions, factory reset my phone and still no luck. What makes things worse is i cannot see any other threads with people in my postition so help is so minimal :/. Annoyed is an understatement.
tyrelldk_ said:
Sorry I'm a noon, don't do all those font sizes and colours and pictures aha but basically... I've been on CyanogenMod for about a year now and have never had WiFi issues. Been using cm12 nightlies for most of this year with no problem however, after updating my nightly the past two days I've been experiencing WiFi Drops happening every min and a half or so. So annoying. I've used Wifix apps etc, no luck. I've reverted to old night lies I used to run without any problems however the problem stays. I've consider flashing back to TouchWiz to see if that helps it but I really don't want to
Can someone please help me. My phone is on contract and my bill is overdue so I won't have mobile data until it's cleared (around June) so if I don't have WiFi, I'm screwed.
S4
Click to expand...
Click to collapse
GDReaper said:
Have you tried flashing a new modem? This generally fixes wifi (and sound issues if there are any)
Click to expand...
Click to collapse
Hi mate ,
Try flashing a new modem it never hurts but wifi is kernel control , see what kernel you had before when it was working good ,check if it was changed in the las upgrade... reflash old kernel again or try a different one
MAX 404 said:
Hi mate ,
Try flashing a new modem it never hurts but wifi is kernel control , see what kernel you had before when it was working good ,check if it was changed in the las upgrade... reflash old kernel again or try a different one
Click to expand...
Click to collapse
I really can't remember what date I was on when it was working fine
tyrelldk_ said:
I really can't remember what date I was on when it was working fine
Click to expand...
Click to collapse
Go back to stock firmware if you haven't updated the bootloader.
If it works fine on stock, then re-root your phone and try again with CM12.
GDReaper said:
Go back to stock firmware if you haven't updated the bootloader.
If it works fine on stock, then re-root your phone and try again with CM12.
Click to expand...
Click to collapse
Updated by bootloader earlier today :s was told I had to do that to flash a new modem... Can/should I still flash back to touchwiz and if so, how do I? And say I go back to touchwiz and it Stoll doesn't work, my phone is basically unusable isn't it?
tyrelldk_ said:
Updated by bootloader earlier today :s was told I had to do that to flash a new modem... Can/should I still flash back to touchwiz and if so, how do I? And say I go back to touchwiz and it Stoll doesn't work, my phone is basically unusable isn't it?
Click to expand...
Click to collapse
Hi ,
yes can still flash an stock rom....but why you do not try first
flash a different modem
flash a different kernel
If every thing else fails flash a stock rom, what model S4 do you have I9505?
there are a few kernels around like
http://forum.xda-developers.com/showthread.php?t=2590246
and modems check here
http://forum.xda-developers.com/showpost.php?p=50965837&postcount=2627
Back up first most important EFS folder
http://forum.xda-developers.com/android/apps-games/app-samsung-efs-imei-partition-backup-t2955110
MAX 404 said:
Hi ,
yes can still flash an stock rom....but why you do not try first
flash a different modem
flash a different kernel
If every thing else fails flash a stock rom, what model S4 do you have I9505?
there are a few kernels around like
http://forum.xda-developers.com/showthread.php?t=2590246
and modems check here
http://forum.xda-developers.com/showpost.php?p=50965837&postcount=2627
Back up first most important EFS folder
http://forum.xda-developers.com/android/apps-games/app-samsung-efs-imei-partition-backup-t2955110
Click to expand...
Click to collapse
I flashed a modem *read above* and nothing's happened... I even tried flashing WiFi fixes and it hasn't done anything
I didn't know kernels could fix a WiFi problem, I might try that.
tyrelldk_ said:
I flashed a modem *read above* and nothing's happened... I even tried flashing WiFi fixes and it hasn't done anything
I didn't know kernels could fix a WiFi problem, I might try that.
Click to expand...
Click to collapse
WIFI is kernel controlled...
MAX 404 said:
WIFI is kernel controlled...
Click to expand...
Click to collapse
Hi, I flashed that kernel and the same problem is occuring D'you have any other ideas? Sorry if i'm being annoying
tyrelldk_ said:
Hi, I flashed that kernel and the same problem is occuring D'you have any other ideas? Sorry if i'm being annoying
Click to expand...
Click to collapse
Check and see i if power save is on , if so switch it off
Dial *#0011#
This will take you into the Service Mode
Press the left bottom key new menu will show
Select Wifi... Once in the Wifi settings , turn it off...
Do you have to refresh the password? just in case check this
Go to /system
Open the built.prop
search for ro.securestorage.support
If it says true , change to false
Save and reboot
Also if you are skill check the antenna cable inside the phone..maybe is just loose
MAX 404 said:
Check and see i if power save is on , if so switch it off
Dial *#0011#
This will take you into the Service Mode
Press the left bottom key new menu will show
Select Wifi... Once in the Wifi settings , turn it off...
Do you have to refresh the password? just in case check this
Go to /system
Open the built.prop
search for ro.securestorage.support
If it says true , change to false
Save and reboot
Also if you are skill check the antenna cable inside the phone..maybe is just loose
Click to expand...
Click to collapse
Grrr... Power save is off
When I dial that code, the phone does nothing...does the fact that I cannot turn on my mobile data stop me from dialing this code? Also, does the fact that I'm on cm12 and not on touchwiz stop me from using this?
& I have no password on my phone and there was no ro.securestorage.support ... I found this "ro.wifi.channels=" if that helps?
tyrelldk_ said:
Grrr... Power save is off
When I dial that code, the phone does nothing...does the fact that I cannot turn on my mobile data stop me from dialing this code? Also, does the fact that I'm on cm12 and not on touchwiz stop me from using this?
& I have no password on my phone and there was no ro.securestorage.support ... I found this "ro.wifi.channels=" if that helps?
Click to expand...
Click to collapse
The code should work maybe is because CM , well last option would be to flash a stock rom and see how it goes........how you know power save is off?
BTW in your wifi setting there is no proxy ? did you try to delete settings and do a new one?
MAX 404 said:
The code should work maybe is because CM , well last option would be to flash a stock rom and see how it goes........how you know power save is off?
BTW in your wifi setting there is no proxy ? did you try to delete settings and do a new one?
Click to expand...
Click to collapse
Damn really didn't want it to get to this, will I lose root access too?
Isn't power save automatically off in the settings? It gives you the option to use it in low battery
& I don't know how to check if there is or isn't proxy. What do you mean by deleting settings?
tyrelldk_ said:
Updated by bootloader earlier today :s was told I had to do that to flash a new modem... Can/should I still flash back to touchwiz and if so, how do I? And say I go back to touchwiz and it Stoll doesn't work, my phone is basically unusable isn't it?
Click to expand...
Click to collapse
If you updated bootloader then you can't go back to kitkat roms. Only the 5.0 lollipop roms. But Samsung hasn't released the official update in all countries.
If it still doesn't work, even with official firmware, then it might be hardware related. Maybe even your wifi router.
MAX 404 said:
Hi ,
yes can still flash an stock rom....but why you do not try first
flash a different modem
flash a different kernel
If every thing else fails flash a stock rom, what model S4 do you have I9505?
there are a few kernels around like
http://forum.xda-developers.com/showthread.php?t=2590246
and modems check here
http://forum.xda-developers.com/showpost.php?p=50965837&postcount=2627
Back up first most important EFS folder
http://forum.xda-developers.com/android/apps-games/app-samsung-efs-imei-partition-backup-t2955110
Click to expand...
Click to collapse
He said he tried other modems.
GDReaper said:
If you updated bootloader then you can't go back to kitkat roms. Only the 5.0 lollipop roms. But Samsung hasn't released the official update in all countries.
If it still doesn't work, even with official firmware, then it might be hardware related. Maybe even your wifi router.
Click to expand...
Click to collapse
Hi, i'm going to flash lollipop touchwiz onto my phone using this http://www.ibtimes.co.uk/android-5-...-s4-lte-how-manually-install-via-odin-1492230.
Anything i should know/do before doing this?
Did you flash an alternate kernel?
Wifi issues are often kernel related. Not always...but often.

No mobile data

Hi,
Since this morning my mobile data is not working anymore. The toggle works but no mobile data. I already flashed the rom again with a full wipe. Nothing. Also tried recovering from an old backup... No luck. Re-entered my APN, rebooted my phone... Still no luck. I think I'll have to flash a stock rom? Or any other suggestions?
Thanks
It maybe a hardware problem. Can you access the engineering menu to test if data is working ?
Cosmic Blue said:
It maybe a hardware problem. Can you access the engineering menu to test if data is working ?
Click to expand...
Click to collapse
I don't know what the engineering menu is? How to access it?
(this gives me a little hope)
I'm probably gonna flash a stock rom but do give me this engeneering menu... Step busstop pls. Tried everything and 8 really do know how to fix these problems but this time I don't know where this is coming from. I was on superman rom but now tekxnesis. (this was the backup I had). But yeah it really doesn't work. thanks for the reply
Cosmic Blue said:
It maybe a hardware problem. Can you access the engineering menu to test if data is working ?
Click to expand...
Click to collapse
So I flashed the stock firmware for belgium but.... still no luck....
Omg what is wrong?
Btw I can't type in secret codes. They all don't work for me.
Pls help guys
liobeir said:
So I flashed the stock firmware for belgium but.... still no luck....
Omg what is wrong?
Btw I can't type in secret codes. They all don't work for me.
Pls help guys
Click to expand...
Click to collapse
Omg guys..... Ik was just out of data... I charged my data bundle and there it was. I have never had no data. Weird.... I so so sorry can this tread be removed?

Lost LTE after PIE

Hello guys.
I have an issue since I decided to flash a pie rom, specifically simplix blue, have no idea if has something to do with that rom.
I used to have LTE as normal and everything was good. Since I flashed a PIE rom I lost LTE. I tried going back to stock and LTE is still gone. Had tried flashing some modems, did not work either. Tried several radio combinations on *#*#4636#*#* did not work.
Any suggestions? I am on Tigo Colombia as carrier and never had this issue before across several xiaomi devices that I have had
Flash stock rom and start over
nor working( volte) for me i switched to airtel.
you can try fleshing vender and other files but not worked 4 me
apexashwin said:
Flash stock rom and start over
Click to expand...
Click to collapse
Already did it. Did not work.
drazrwl said:
nor working( volte) for me i switched to airtel.
you can try fleshing vender and other files but not worked 4 me
Click to expand...
Click to collapse
Nope.
I had found a solution already. It is kinda long so tomorrow I Will post a guide. For some reason the band 4 that was the one that my carrier uses was blocked. So I had to unblock it
I have seen several people here with similar issues and not being able yo Solve it. Hopefully the tutorial that I Will make, help them as well.
I have the same problem, any way to fix it?
davnc18 said:
I have the same problem, any way to fix it?
Click to expand...
Click to collapse
Yep, I have been quite busy, as soon as I have time, I will post a tutorial. Meanwhile, take a look at this post, read first part of post 3 and then post 7.
https://forum.xda-developers.com/lenovo-p2/how-to/enabled-4g-ca-p2-t3707584
As soon as you finish adding the band, install network signal guru, provide root admin rights and then select on the 3 dots at the top right corner lock bands, select lte and pick up the band missing and reboot.
Also facing this, I'm waiting for tutorial.
marko.dnb said:
Also facing this, I'm waiting for tutorial.
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Click to collapse
https://forum.xda-developers.com/mi-a1/how-to/lte-t3854592
Here it is.

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