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Hi good people, I am facing a problem. Around 8 hours back I tried calling someone but the call didn't connect so I restarted the phone and then I lost the network. I tried reboot, flashed different ROMs (unofficial CM14, cm13 nightly build n MM nougat backup), tried with GAPPS and without GAPPS but the problem is persisting. I even tried swapping the Sim cards before that but of no use. I tried debugging by using *#*#4636#*#* but ping test is failed and also there is "TURN RADIO ON" I believe ideally it should be "TURN RADIO OFF". please have a look at the screenshots. I'm almost dying without making important calls.
Update: Guys I have got it working.. Kindly look into my below posts. Please don't misguide people for small issues.
Thanks
In the screenshot we can also see, GSM SERVICE IS OFF. it stays the same even after clean flashing a new custom ROM.
Got it working. Flashed latest COS ROM file however the situation was still the same. Then I removed sim, switched on airplane mode restarted. After reboot inserted Sim then again restarted n then I got the signal
1. Removed Sim card, switched on airplane mode from both power menu and notification toggle.
2. Restart, inserted Sim card and switched off airplane setting from setting. (Notification toggle and power menu didn't work) then got the network.
Please note I tried with only one sim in sim 1 tray. Later I got the network for 2nd sim as well
Narasimha12 said:
Got it working. Flashed latest COS ROM file however the situation was still the same. Then I removed sim, switched on airplane mode restarted. After reboot inserted Sim then again restarted n then I got the signal
Click to expand...
Click to collapse
Which rom did you flash and what was your method of flashing?
You also said simply flashing didn't work. It was what you did with reboot, aeroplane mode and taking out and reinsert the Sim that worked?
I've had the same problem for almost a month now... and i gave my phone to the service center. They called up to inform me that its a motherboard failure and they'll fix it.. I'll provide further info when I get my phone back (probably in 3-4 days)
P.S I tried almost every method to make it work. So if you couldn't make it work in first 2 days or so, dont waste your time and just give it for the servicing (make sure its in Stock OS so that they dont ask any questions about root xD )
lekhwani said:
Which rom did you flash and what was your method of flashing?
You also said simply flashing didn't work. It was what you did with reboot, aeroplane mode and taking out and reinsert the Sim that worked?
Click to expand...
Click to collapse
I flashed almost every latest ROM. But no ROM got the network back. So as a last resort I flashed COS 12.1 and still didn't get the network. Then I removed both the sims, activated flight mode restarted the device, left it couple of minutes and inserted only one sim in first slot. Holla I got the network. Then everything is back to normal
If u r facing the same problem I would suggest u to activate flight mode n restart. If it doesn't work try by removing sim cards, if it still doesn't work try COS 12.1.
lekhwani said:
Which rom did you flash and what was your method of flashing?
You also said simply flashing didn't work. It was what you did with reboot, aeroplane mode and taking out and reinsert the Sim that worked?
Click to expand...
Click to collapse
Usual procedure of flashing. Wipe cache, dalvik, system and data. Flash ROM + Gapps. Reboot
Try to search in the forum. There is a lot of threads with the same problem with the Zuk Z1. It is a hardware problem.
Enviado desde mi Redmi Note 3 mediante Tapatalk
Your modem and baseband sections may be damaged. Modem structure is hidden under qualcomm structure. To Access and repair those sections, you need to do some modifications. I managed to make my Zuk Z1 worked again with some tweaking. Altering that part of the phone is illegal due to its restricted elements such as IMEI number. That's why I cannot post a tutorial here. İt is not allowed. However, I can help you if you personally contact me. I hope you get your signal back soon.
psyckoze said:
Your modem and baseband sections may be damaged. Modem structure is hidden under qualcomm structure. To Access and repair those sections, you need to do some modifications. I managed to make my Zuk Z1 worked again with some tweaking. Altering that part of the phone is illegal due to its restricted elements such as IMEI number. That's why I cannot post a tutorial here. İt is not allowed. However, I can help you if you personally contact me. I hope you get your signal back soon.
Click to expand...
Click to collapse
Please follow xda rules and don't tell people illegal things where they get in trouble. Keep in mind, that's not an illegal forum
Sure thing but I have already mentioned it. I didn't post anything illegal. So, take it easy.
psyckoze said:
Your modem and baseband sections may be damaged. Modem structure is hidden under qualcomm structure. To Access and repair those sections, you need to do some modifications. I managed to make my Zuk Z1 worked again with some tweaking. Altering that part of the phone is illegal due to its restricted elements such as IMEI number. That's why I cannot post a tutorial here. İt is not allowed. However, I can help you if you personally contact me. I hope you get your signal back soon.
Click to expand...
Click to collapse
Hej. I manage to mess upp my baseband/modem proberly when flashing a rom or i messed up in twrp.
Phone show up imei as null and unknown baseband so i would really appriciate you help here.
I still have orginalbox that show my imei so i can enter the correct one when needed.
psyckoze said:
Your modem and baseband sections may be damaged. Modem structure is hidden under qualcomm structure. To Access and repair those sections, you need to do some modifications. I managed to make my Zuk Z1 worked again with some tweaking. Altering that part of the phone is illegal due to its restricted elements such as IMEI number. That's why I cannot post a tutorial here. İt is not allowed. However, I can help you if you personally contact me. I hope you get your signal back soon.
Click to expand...
Click to collapse
Hi, I haven't still gone to the service centre. Kindly pm me the tutorial for getting signals back.
After So much Confusion On VoLTE Issue, M making this Complete guide for All LineageOS(CM13) Users..
Soo, In this part We gotta know about Problems because of which VoLTE is broken for some users..
VoLTE issue appeared after @codeworkx sir release Seperate modems & Bootloader for Le2..
Many users Flashed Random Modems & Boatloader without knowing which modem is for which region...
So, Let's clarify which Modem & Bootloader is for which region..
Modem/Baseband :-
1. MPSS.TA.2.0.C18-56437
LINK :- http://eu.host.erwanleboucher.fr/codeworkx/lineage/s2/modems/MPSS.TA.2.0.C18-56437.zip
Region :- Possible Chinese/Russian/India
EUI Based :- No idea
2. MPSS.TA.2.0.C18-61295
LINK :- http://eu.host.erwanleboucher.fr/codeworkx/lineage/s2/modems/MPSS.TA.2.0.C18-61295.zip
Region :- Possible Chinese/Russian/India
EUI Based :- No idea
3. MPSS.TA.2.0.C18-66782_VoLTE_dangerous
LINK :- http://eu.host.erwanleboucher.fr/co...ems/MPSS.TA.2.0.C18-66782_VoLTE_dangerous.zip
Region :- Possible Chinese/Russian/India
EUI Based :- EUI 19s
4. MPSS.TA.2.1.C7-68083
LINK :- http://eu.host.erwanleboucher.fr/codeworkx/lineage/s2/modems/MPSS.TA.2.1.C7-68083.zip
Region :- Possible Chinese/Russian/India
EUI Based :- EUI 20s
Bootloader :-
1. bootloader-19S-india-s2ww
LINK :- http://eu.host.erwanleboucher.fr/codeworkx/lineage/s2/bootloaders/bootloader-19S-india-s2ww.zip
Region :- Specially for India
EUI Based :- EUI 19s
2. bootloader-20S-s2
LINK :- http://eu.host.erwanleboucher.fr/codeworkx/lineage/s2/bootloaders/bootloader-20S-s2.zip
Region :- Specially Chinese/Russian
EUI Based :- EUI 20s
Soo, Now it's clear that Which Bootloader & Modem is based on which region & EUI based.. :fingers-crossed:
Now let's see why many people's facing Issue..
1. Flashed Wrong Modem/Baseband
Issue :- Some peoples flashed wrong Modem for get VoLTE in hurry without knowing which Modem support VoLTE..
Solution :- 2 Solutions
1. As of now, Only 19s Modem/Baseband Just flash it..
2. Flash whole 19s Stock ROM & Flash Lineage/CM
2. Flashed 20s Bootloader
Issue :- Due to Wrong Bootloader, ROMs facing Issues
Solution :- 2 Solutions
1. As of now, Only 19s Modem/Baseband Just flash it..
2. Flash whole 19s Stock ROM & Flash Lineage/CM
This part is we gonna know how to fix VoLTE
FIX 1 :- Little complicate
1. Download Stock 19s ROM
LINK :- Click Here
2. If you are on TWRP by Codeworkx sir, You have to change TWRP..
Download TWRP & Flash it with Current TWRP. Thanks to @ycjeson for Making this Recovery.
LINK :- CLICK HERE
3. Now Copy Stock 19s ROM which you downloaded in 1st step in Your Le2.
4. Flash it with TWRP which we installed in 2nd step.
PS :- Your all data will get wiped after installing Stock ROM.. Even TWRP get replaced with Stock Recovery.. So better take backup of your data.
5. Now, you are on Stock EUI 19s.. Use it for 30 minutes, Do calls, use data..
6. Now, if your Bootloader is Still unlocked, Flash Latest TWRP by codeworkx via PC
Tutorial LINK :- Click Here
7. Now, 3. Download Latest LineageOS build by codeworkx & Copy it in your Le2
LINK :- Click Here
8. Now Boot in TWRP by Holding Volume down + Power buttons.
9. Go in Wipe & select Dalvik Cache, Cache, System, Data & Swipe to Wipe
10. Now go back to main menu & Select Install.
Now navigate to location where You copied LineageOS in 7th step & Swipe to flash..
Most important part start here
After Your device start, you might see You have VoLTE working.. But due to some bug, It will get disappear after 1st Reboot. Soo, Let's fix it..
1. Open Settings -> Sim Settings. Now set Call, Data & SMS to Jio..
2. Now open sim 1/Jio sim cellular setting & Enable Data roaming.
3. Now Go in Access Point Name & Create New APN as given follow.. Only 3 things to set.
1. APN name :- ims
2. APN :- IMS
3. APN Type :- IMS
& save.
PS :- APN & APN type is in Capital letters.. You have to set it as given because due to bug, if APN type get small letter, Setting get wiped after save.
4. Now set Jio Internet as default & close settings.
5. Now open Dialer & click on right top 3 Dots & select setting.
6. Set Make calls with JIO & then click on Sim 1 which is Jio.
7. After that click on IMS settings
8. In IMS setting, Set VT call quality to High
Here you will face 1 bug..
After clicking VT calling service, you will see 2 options :- High & Low..
But even after selection you can't see which is selected.. Just ignore it..
Now go back, Close Dialer & Reboot Phone...
Now open dialer.. You can see little change in sim icon..
Done.... Enjoy VoLTE calling on JIO sim..
FIX 2:- More simple
This fix is for those who are already on LineageOS(M prefer Clean flash)
1. Download 19s Modem Provided by codeworkx
LINK :- Click Here
2. Flash it with TWRP.
Most important part start here
After Your device start, you might see You have VoLTE working.. But due to some bug, It will get disappear after 1st Reboot. Soo, Let's fix it..
1. Open Settings -> Sim Settings. Now set Call, Data & SMS to Jio..
2. Now open sim 1/Jio sim cellular setting & Enable Data roaming.
3. Now Go in Access Point Name & Create New APN as given follow.. Only 3 things to set.
1. APN name :- ims
2. APN :- IMS
3. APN Type :- IMS
& save.
PS :- APN & APN type is in Capital letters.. You have to set it as given because due to bug, if APN type get small letter, Setting get wiped after save.
4. Now set Jio Internet as default APN & close settings.
5. Now open Dialer & click on right top 3 Dots & select setting.
6. Set Make calls with JIO & then click on Sim 1 which is Jio.
7. After that click on IMS settings
8. In IMS setting, Set VT call quality to High
Here you will face 1 bug..
After clicking VT calling service, you will see 2 options :- High & Low..
But even after selection you can't see which is selected.. Just ignore it..
Now go back, Close Dialer & Reboot Phone...
Now open dialer.. You can see little change in sim icon..
Done.... Enjoy VoLTE calling on JIO sim..
again reserved
Cdma not work
China telecom 2g/3g work on CDMA ,But this ROM can't search CDMA ,gms searching use lot battary
chao2142 said:
China telecom 2g/3g work on CDMA ,But this ROM can't search CDMA ,gms searching use lot battary
Click to expand...
Click to collapse
Basically,
You have to Set your network priority for China Telecom Sim From LTE to 3G..
Setting :- Sim Cards :- Cellular Network Setting :- Select your Sim :- Set Preferred Network type from LET to 3G.
CYB3R0ID694 said:
Basically,
You have to Set your network priority for China Telecom Sim From LTE to 3G..
Setting :- Sim Cards :- Cellular Network Setting :- Select your Sim :- Set Preferred Network type from LET to 3G.
Click to expand...
Click to collapse
I tried ,even changed in textmod ,CDMA lte auto or CDMA only or GSM CDMA auto .it still search GSM .,lte is online .but search GSM take much battery
@CYB3R0ID694 I have tried your 2nd method but only LTE means data works after reboot. Volte vanished and not able to call .As well as volte sign missing in dialer icon.
Fix 1 ,will it work after reboot?
Please help
This is working for single sim. I am using one Jio sim and one Idea. Only able to call from one number at a time. If I put one Jio sim only, this process works for me. Together both sims are't working
Pls advice
Thanks .
umangloria said:
@CYB3R0ID694 I have tried your 2nd method but only LTE means data works after reboot. Volte vanished and not able to call .As well as volte sign missing in dialer icon.
Click to expand...
Click to collapse
Check if you have VT calling quality High from Dialer setting..
Looks like it's set to unknown due to some Sim setting..
Verma's said:
This is working for single sim. I am using one Jio sim and one Idea. Only able to call from one number at a time. If I put one Jio sim only, this process works for me. Together both sims are't working
Pls advice
Thanks .
Click to expand...
Click to collapse
Set Calling option to Always ask..
Keep Data Enabled for Roaming & Data to Jio sim..
CYB3R0ID694 said:
Set Calling option to Always ask..
Keep Data Enabled for Roaming & Data to Jio sim..
Click to expand...
Click to collapse
Works perfectly now...
One catch.. After every boot VT setting has gone we again have ro keep to high every time.
Can live with it
Thanks for the solution..
Verma's said:
Works perfectly now...
One catch.. After every boot VT setting has gone we again have ro keep to high every time.
Can live with it
Thanks for the solution..
Click to expand...
Click to collapse
That means after every reboot after to set VT settings to high, does it successfully change? or still gets stuck on unknown?? And after doing this this, is your volte now working fine even after reboot?
currently I'm using both Sims and volte is working fine but after reboot it breaks so I didn't reboot my ph since 3 days
mdfarazb2 said:
That means after every reboot after to set VT settings to high, does it successfully change? or still gets stuck on unknown?? And after doing this this, is your volte now working fine even after reboot?
currently I'm using both Sims and volte is working fine but after reboot it breaks so I didn't reboot my ph since 3 days
Click to expand...
Click to collapse
Yes.. It is working for me. If it doesn't for you.
, try the shortcut master way..
Mine it is working. I did rebooted my phone 4-5 times, did used both methods and every time I am able to use VOLTE and other sim simultaneously.
Let me know if anyone need step wise tutorial
Verma's said:
Yes.. It is working for me. If it doesn't for you.
, try the shortcut master way..
Mine it is working. I did rebooted my phone 4-5 times, did used both methods and every time I am able to use VOLTE and other sim simultaneously.
Let me know if anyone need step wise tutorial
Click to expand...
Click to collapse
Can you send me you apn's screenshot?
And yes Shortcut master way leads to force reboot
And is your vt call quality is set to high (Instead of having both Sims)?
mdfarazb2 said:
Can you send me you apn's screenshot?
And yes Shortcut master way leads to force reboot
Click to expand...
Click to collapse
[/QUOTE]
Give me your email I'd.
Shortcut Master is not force closing for me. It did ask to reboot the device but just ignore it and in 20-30. VOLTE signals is coming back
Give me your email I'd.
Shortcut Master is not force closing for me. It did ask to reboot the device but just ignore it and in 20-30. VOLTE signals is coming back[/QUOTE]
[email protected]
Just now did the steps..i.e. Enabled data roaming for jio.. created IMS apn...set VT to high.. rebooted ph.. volte gone:crying:
mdfarazb2 said:
Give me your email I'd.
Shortcut Master is not force closing for me. It did ask to reboot the device but just ignore it and in 20-30. VOLTE signals is coming back
Click to expand...
Click to collapse
[email protected]
Just now did the steps..i.e. Enabled data roaming for jio.. created IMS apn...set VT to high.. rebooted ph.. volte gone:crying:[/QUOTE]
Don't worry. . and pls check your email
Verma's said:
[email protected]
Just now did the steps..i.e. Enabled data roaming for jio.. created IMS apn...set VT to high.. rebooted ph.. volte gone:crying:
Click to expand...
Click to collapse
Don't worry. . and pls check your email[/QUOTE]
Man just now did the shortcut method... No force reboot/any reboot ... And I can see volte sign in the dialer again!!!
don't know if it'll stay like that even after reboots or not
mdfarazb2 said:
Don't worry. . and pls check your email
Click to expand...
Click to collapse
Man just now did the shortcut method... No force reboot/any reboot ... And I can see volte sign in the dialer again!!!
don't know if it'll stay like that even after reboots or not[/QUOTE]
I tried and on every reboot we have to repeat this. But don't worry, @codeworkx will find out solution and give a bugfree ROM. He is awsm.. Till then let's live up with this bug.
Hello Friends , I have OnePlus 2 ( oxygen OS 3.6.1) with JIO on my 1st sim slot . Many times the VOLTE icons disappears from the status bar although the signal is full on the sim and the data is working .After VOLTE icons disappears I cant make any call from the sim and I dont have any other choice than disabling the sim card and re enabling it to bring the VOLTE back which is quite frustrating . Any help on this ?
Try resetting the network settings within your sim card menu. Revert if issue persists.
Hey I already tried network resetting but nothing works
perhaps reflashing the modem firmware file of 3.6.0 or 3.6.1 will solve your issue. Link is in the lineage OS 15 thread. Search for the keywords you'll get it. If you don't I'll link.
Hey send link didn't find it plz
[email protected] said:
Hello Friends , I have OnePlus 2 ( oxygen OS 3.6.1) with JIO on my 1st sim slot . Many times the VOLTE icons disappears from the status bar although the signal is full on the sim and the data is working .After VOLTE icons disappears I cant make any call from the sim and I dont have any other choice than disabling the sim card and re enabling it to bring the VOLTE back which is quite frustrating . Any help on this ?
Click to expand...
Click to collapse
I am also facing this issue recently.
I Tried reflashing the OS to 3.6.0 and 3.5.6 but same issue still persists. I cleaned Data and cache too.
(Jio VOLTE is now only working in SIM1 slot. Previously it used to work in SIM2 slot too. Even after flashing to older OS, facing same issue)
No success yet.
ShomiNa said:
I am also facing this issue recently.
I Tried reflashing the OS to 3.6.0 and 3.5.6 but same issue still persists. I cleaned Data and cache too.
(Jio VOLTE is now only working in SIM1 slot. Previously it used to work in SIM2 slot too. Even after flashing to older OS, facing same issue)
No success yet.
Click to expand...
Click to collapse
chances that u'r using 2 simcards... remove one and power on /off then isert second sim !
[email protected] said:
Hey send link didn't find it plz
Click to expand...
Click to collapse
Is your problem solved? Coz I m facing the same issue for a while now.
Even I'm facing the same issue?
I have to remove and reinsert sim every 1-2 hours to get volte back
Hi
I have done repartition of yureka plus and then come again of stock partition. I was trying android p. I have flashed volte modem many times. Now i am not able to see network Currently i have installed stock roms COS 12.1 but still no success.
I can see cross sign on both network. I have tried *#*#4636#*#* method also.
I am able to search network manually but cannot select it. PFA screenshot.
2-3 times i see gsm network . but it lost again.
Anybody please help. Shopkeeper said problem is in mother board. But, i did not harm phone physically.
praveen139 said:
Hi
I have done repartition of yureka plus and then come again of stock partition. I was trying android p. I have flashed volte modem many times. Now i am not able to see network Currently i have installed stock roms COS 12.1 but still no success.
I can see cross sign on both network. I have tried *#*#4636#*#* method also.
I am able to search network manually but cannot select it. PFA screenshot.
2-3 times i see gsm network . but it lost again.
Anybody please help. Shopkeeper said problem is in mother board. But, i did not harm phone physically.
Click to expand...
Click to collapse
Ss clearly show ur imei ****ed . Restore back ur imei
Yes, your IMEI is 1234567890
Restore efs backup in twrp
Nobackup
Rajendran Rasa said:
Yes, your IMEI is 1234567890
Restore efs backup in twrp
Click to expand...
Click to collapse
I dont have backup. Yesterday whole day i was trying xda methods. but unable to restore imei.
in below link usb hs-diagnostic 9006 driver download is not working .
https://forum.xda-developers.com/yureka/help/recovering-lost-imei-yu-yureka-yunique-t3331485
hello guys,
lenovo k6 note Volte is working ,data is also working , when i do call its closing automatically every time
chaitanya49 said:
hello guys,
lenovo k6 note Volte is working ,data is also working , when i do call its closing automatically every time
Click to expand...
Click to collapse
CustomRom or stock?
Same problem,
You got any solution?
Hi all,
The problem is with the baseband. Unlocking the bootloader corrupts the EFS for some devices like mine, though the IMEI was shown properly.
I had to totally restore my baseband, calls are fine now even on non-VoLTE network.
Check out this thread.
https://forum.xda-developers.com/k6-power/how-to/guide-restore-baseband-k6-note-imei-t4007861
And for the second SIM issue which a few people experience:
1. In stock ROM, primary mobile data SIM is set to LTE/WCDMA/GSM by default, but that is not the case with custom ROM (atleast in my case).
2. To get the second SIM slot work properly, manually set the network to GSM for your second slot (in case if your second slot is not your primary mobile data slot).
3. If you have changed the primary data SIM to your second slot, you have to set the first slot to GSM manually from network settings (this will not change automatically) and set your second slot to LTE/WCDMA/GSM. Your second slot will receive signal and connect to the network now.
Thanks,
tfr.