[FIX] [ROM] Get back signal after selecting US band in the *#*#4636#*#* menu - Google Pixel Guides, News, & Discussion

What is this?
This is a ROM which I built from AOSP source code with a little modification. This only modfication is about making the phone to load every band mode instead of loading that few band modes which are found in the baseband.
Requirements:
Google Pixel (sailfish)
Unlocked bootloader
Let's start!
Download the aosp_sailfish_all_bands rom
Extract aosp_sailfish_all_bands.rar file
Connect your phone in fastboot mode
Run flash.bat
Wait for your phone to boot up
Dial *#*#4636#*#*
Select Automatic band in Phone information/(three dot icon top right corner)/Select Radio Band
Reboot your phone to verify you got back your signal
Flash back your favourite rom
Sources:
AOSP source code
My modification for apps/Settings/src/com/android/settings/BandMode.java
Thanks for @peikojose testing it out

Any screenshots? Would like to have a look before flashing

BakedTator said:
Any screenshots? Would like to have a look before flashing
Click to expand...
Click to collapse
I dont have the device. I cannot make any screenshots of it.

I made some screenshots when I tested it. Will post them tomorrow.
But it is a bare bone AOSP rom, only addition is the possibility of changing bands.

peikojose said:
I made some screenshots when I tested it. Will post them tomorrow.
But it is a bare bone AOSP rom, only addition is the possibility of changing bands.
Click to expand...
Click to collapse
So any "pixel" features will have to be modded in I'm assuming? Animated home button, Google assistant, and so on

This rom was not intended to be used as a daily driver. This rom has only one porpouse: to fix the signal if you selected US band in the *#*#4636#*#* menu for whatever reason.
Sent from my Nexus 5 CAF using Tapatalk

Here are the screenshots:
Bitdomo and stock ROM.

Not enough thanks being thrown for this. This will surely help some people out.
Thanks for this

Pixel data connection( Internet) is not working
Pixel data connection( Internet) is not working I had successfully build ed the build NDE63X Including the Driver binaries of pixel f. After flashing custom build with output images from ASOP , mobile data (internet) is not working in pixel device . Please provide solution and guidance as earlier possible.

meghdootcontainer said:
Pixel data connection( Internet) is not working I had successfully build ed the build NDE63X Including the Driver binaries of pixel f. After flashing custom build with output images from ASOP , mobile data (internet) is not working in pixel device . Please provide solution and guidance as earlier possible.
Click to expand...
Click to collapse
I suppose you don't speak English. Which pixel do you have small or XL? This ROM works only with the small one.
Did you flash the ROM posted here ? Did you follow the instructions?
Sent from my Pixel using Tapatalk

Pixel data connection internet not working
I am From India , getting mobile network signal but no mobile data connectivity and in Sim status and cellular network state is alway connecting . I am able to make calls to other mobiles but no data connectivity. I tried to fetch log using dmesg there i found
[ 714.721480] c1 1 init: Starting service 'netmgrd'...
[ 714.827274] c1 1 init: Service 'netmgrd' (pid 3000) exited with status 255
[ 714.827456] c1 1 init: Service 'netmgrd' (pid 3000) killing any children in process group
[ 719.835754] c1 1 init: Starting service 'netmgrd'...
[ 719.940213] c1 1 init: Service 'netmgrd' (pid 3002) exited with status 255
[ 719.940291] c1 1 init: Service 'netmgrd' (pid 3002) killing any children in process group
[ 724.948909] c1 1 init: Starting service 'netmgrd'...

Pixel data connection internet not working
I am from india i flashed your rom and using google pixel small onec

It is hard to help you because I dont understand your problem.

How to enable mobile data
Dear sir,
I had recently successfully build the latest source code with build id NMF26Q and flashed into Google pixel device , but i am unable to get mobile data connectivity. I had checked the APN and other settings , everything seems to be perfect still mobile data connection not working. I am able to get mobile signal network and able to call and send sms too, but no internet. So please kindly provide any solution or whether i had missed out any build property during build.
Please provide me solution earliest possible
Thank you
Vamsi Donkada

meghdootcontainer said:
Dear sir,
I had recently successfully build the latest source code with build id NMF26Q and flashed into Google pixel device , but i am unable to get mobile data connectivity. I had checked the APN and other settings , everything seems to be perfect still mobile data connection not working. I am able to get mobile signal network and able to call and send sms too, but no internet. So please kindly provide any solution or whether i had missed out any build property during build.
Please provide me solution earliest possible
Thank you
Vamsi Donkada
Click to expand...
Click to collapse
Is your cellular data toggle switch on?
Did you try using some other carrier sim?
Sent from my Pixel XL using XDA Labs

immiMIK said:
Is your cellular data toggle switch on?
Did you try using some other carrier sim?
Sent from my Pixel XL using XDA Labs
Click to expand...
Click to collapse
Yest my mobile data is on and i had tested with different sim cards of different networks

I had this same issue on a Moto device and I was able to resolve it by:
fastboot erase modemst1
fastboot erase modemst2
Click to expand...
Click to collapse
I am ignorant to how exactly how the Radios interface with Android so I have no idea if this could work for Pixel owners or if this will implode your device. Just wanted to put the information out there that this solved the issue for me.

eventnick said:
I had this same issue on a Moto device and I was able to resolve it by:
I am ignorant to how exactly how the Radios interface with Android so I have no idea if this could work for Pixel owners or if this will implode your device. Just wanted to put the information out there that this solved the issue for me.
Click to expand...
Click to collapse
BE CAREFUL if you try this with a Pixel phone. It may not work and if you erase something stored in the efs partition and dont have backup your phone will be bricked.

peikojose said:
BE CAREFUL if you try this with a Pixel phone. It may not work and if you erase something stored in the efs partition and dont have backup your phone will be bricked.
Click to expand...
Click to collapse
Very correct, you need to ensure you have a valid esf partition before doing this. That is important.

Pixel XL
Hi, I have Pixel XL model: G-2PW2200 ( European ) which didn't connect to LTE network. my network uses Band 3. so I was playing in *#*#4636#*#* and changed band to USA which gave me 4G but I've lost 2G, 3G and calls.. then I choose Japan which gave me 3G, 4G and calls but not 2G. now I'm looking for ROM or anything that help me unlock all bands or better take me back to stock bands Automatic.
Any help?

Related

[HELP] X on top of signal bars! No service

Hi Youngers!
I got a friend's Y that doesn't have any signal or service with a working SIM. It only displays an X on top of the empty signal bars. I configured it's APN, and flashed another modem , but it's still doesn't work. Any help will be appreciated.
HolloWX said:
Hi Youngers!
I got a friend's Y that doesn't have any signal or service with a working SIM. It only displays an X on top of the empty signal bars. I configured it's APN, and flashed another modem , but it's still doesn't work. Any help will be appreciated.
Click to expand...
Click to collapse
Try some troubleshooting. Test his sim on another phone and see if it works there.
Is he on a custom rom? Creeds Rom 3.4 had a bug where you cant see the signal even though it has a signal. Can he still send messages even when signal bar is X?
Also, APN wont do anything for the signal, its only for mobile internet browsing with your carrier. Hmmm... are you talking about surfing through your carrier? or basic services like calls and texts?
glennlevi said:
Try some troubleshooting. Test his sim on another phone and see if it works there.
Is he on a custom rom? Creeds Rom 3.4 had a bug where you cant see the signal even though it has a signal. Can he still send messages even when signal bar is X?
Also, APN wont do anything for the signal, its only for mobile internet browsing with your carrier. Hmmm... are you talking about surfing through your carrier? or basic services like calls and texts?
Click to expand...
Click to collapse
Thanks for replying! It's running creed's v2. When you try to place a call it says "Mobile Network not Available". I tried his SIM card on an unlocked Atrix 4G and it made a call successfully. Texting doesn't work either. He said when he had this problem he took it to some unlock/repair shop and they failed to state what exactly was causing this.
HolloWX said:
Thanks for replying! It's running creed's v2. When you try to place a call it says "Mobile Network not Available". I tried his SIM card on an unlocked Atrix 4G and it made a call successfully. Texting doesn't work either. He said when he had this problem he took it to some unlock/repair shop and they failed to state what exactly was causing this.
Click to expand...
Click to collapse
try going to airplane mode then switch back
leodasal2 said:
try going to airplane mode then switch back
Click to expand...
Click to collapse
If all else fails, go back to stock rom or try another rom
(Though I suggest latest stock rom with merruk kernel and superuser opened)
glennlevi said:
If all else fails, go back to stock rom or try another rom
(Though I suggest latest stock rom with merruk kernel and superuser opened)
Click to expand...
Click to collapse
leodasal2 said:
try going to airplane mode then switch back
Click to expand...
Click to collapse
I flashed the ROM below, after i flashed it, booted up then i installed merruk 2.0 final. Did the airplane mode, but it still doesn't work. The APN looks fine. I really don't know what's causing this.
S5360B_UTKI3_ZTAKI3_UTKI3
Brazil
based on: S5360BUTKI3_S5360ZTAKI3_S5360BUTKI3_HOME.tar.md5
ro.build.date=Thu Sep 22 13:27:09 KST 2011
ro.build.version.release=2.3.5
Included CSCs:
ZTA only (Claro)
Included languages:
UT = en,es,pt
Your phone is network locked or something like that I guess.
Best way to get it solved is to post your query in this thread:
http://forum.xda-developers.com/showthread.php?t=1647703
Doky73 will surely help you out
I advise to flash this pack: S5360B_UTLC2_ZTOLC_UTLC1 (open Brasil)
Flash all 3 part (PDA, MODEM, CSC)
If it does not help, then send me your bml15.img.SAVE (made by Galaxy Toolbox)
hey pal i also encountered this kind of problem before after patching Creeds ROM. What i did was I reflash the rom with stock Galaxy Y via ODIN or after the first successful boot of selected customize ROM. then you will need to apply the CSC depending on what network your country has. like mine i choose either from SMA/GLB/XTE. just dial #272* IMEI code. I hope this will help.:good:

CDMA To GSM on any Custom Rom

Hello, guys, how are you ...?
I recently bought a galaxy s4 from verizon, as you know this device comes with the bootloader blocked so it does not allow changes in the system: (neither TWRP nor Roms anything, only root and module changes by flash fire) so I decided to buy a board of a SPH-L720 that works perfectly, until all very well the board brought stock rom and everything was great as far as wireless networks, so I decided to do root and change the recovery to install octos everything came out Good and booom! I had android 7.1.1 running on my sph l720, but there was a small problem THE MOBILE NET NOT WORKED anything 3g or 4g or anything, also in the settings did not allow to select preferred network type because it gave me a Error when doing it also with the code * # * # 4636 # * # * when selecting the gsm returned to LTE / CDMA and this was starting to annoy me so much because in my country CDMA is not useful and I was without service.
It happens that apparently the developers of this rom and the 10 most that proves they forgot to put in the build.pro the global network mode as preferred, so the cell phone only worked with LTE / CDMA and nothing else, so Try more than 20 ways install again stock and worked the network (but did not want stock wanted 7.1.1) so change the baseband and nothing at all this took me more than 4 days parting my eyes for a stupid error of the build. Prop so I found a tutorial on the net that gave me the link to a zip file flasheable by recovery and ready after 3 minutes select from 3g boomer and booom my cell running on 3g full and no signal decay thanks To all because I read all the help post and no one answered
Please send me imbox to pass the link since being new could not upload the link I will give them free
Hi, can you send me the information to [email protected].
Regards,
FiNXEN
hi friends. its true this post? can you send me the link with more information or the zip to test it. please. my email is [email protected]
best regards,
T.
Pls send zip
[email protected]
Please send me the link at [email protected] :fingers-crossed:
Hello Can you send link to me? I really need it. Mail: [email protected]
Idiots fall for anything.
I'm guessing that the OP was just spreading some BS, but I actually came here today looking for something that will allow GSM service on custom ROMs. My LG G3 just crapped out, so I had to get my 720T unlocked so I could use it on AT&T until I can afford to get something better. It works well enough on the stock ROM (although 3G kinda sucks) but it constantly switches between US Cellular and AT&T when I'm running a custom ROM, making it effectively useless.
Anyone know of any ROMs that can be flashed on the 720T that will enable GSM networks; any way to modify the popular ROMs floating around so they'll do what I need?

How to modify LTE Carrier Aggregation and enable 256QAM/64QAM on Xperia XZ and XZs

Mostly Sony XZ-series phones have limited LTE Carrier Aggregation bands on per country / provider. You can check here more information about that: https://forum.xda-developers.com/xperia-xz/how-to/lte-carrier-aggregation-combinations-t3577544
I made step by step instruction how to modify on Sony XZ, Sony XZs, Sony XZ Premium and Sony XZ1 LTE Carrier Combinations. Rooted phone required. This instruction should working also with Dual SIM models.
Sony XZ Premium after Android 9 PIE does not work anymore
You can check this on my blog site: https://mt-tech.fi/en/modify-sony-xz-xzs-xz-premium-and-xz1-lte-a-band-combos/
Make sure you make full modem backup and backup all config files to your computer, if need restore configuration.
To try this mod, it should be supported by the carrier also! Is there a way to find out in which countries it's rolling?
Sent from taptalk
550D said:
To try this mod, it should be supported by the carrier also! Is there a way to find out in which countries it's rolling?
Sent from taptalk
Click to expand...
Click to collapse
Did you mean LTE Carrier Aggregation support? You just should check what band your provider support and then find possible combos on our Google sheets (link on first post).
Many providers also support well 256QAM/64QAM but not every provider yet. There is no list yet.
That's my point... There is no "list". You just try it and see if it's working. But I'm not brave enough to try it -and IF it goes smoothly- see no result because my provider being ambitious in saving money than QoS :/
Sent from taptalk
550D said:
That's my point... There is no "list". You just try it and see if it's working. But I'm not brave enough to try it -and IF it goes smoothly- see no result because my provider being ambitious in saving money than QoS :/
Sent from taptalk
Click to expand...
Click to collapse
That should ask from local provider customer service.
When know local LTE bands then know possible CA-combinations.
hi,
i try your LTE mod but from the last update .192 i don't have 4x F8311 (Sony XZ) undefined device, I get 3 and not MI_04. What do you think about that and how could i unlock LTE ?
thanks
ND
bobladure said:
hi,
i try your LTE mod but from the last update .192 i don't have 4x F8311 (Sony XZ) undefined device, I get 3 and not MI_04. What do you think about that and how could i unlock LTE ?
thanks
ND
Click to expand...
Click to collapse
Maybe you have driver already installed? Open QPST App and see your phone already added automatically?
yes it's that
Thanks you a lot
i can unlock now
ND
@olkitu QPST on xz1/xz premium with Android Pie works using the magisk module that you can find here: https://forum.xda-developers.com/showpost.php?p=78919730&postcount=119. No need to install custom driver, you can use the driver from windows update. I'm saying it to you also because your tutorial is among the first results on Google
Edit: It seems to not work on XZ premium. I was wrong
HandyMenny said:
@olkitu QPST on xz1/xz premium with Android Pie works using the magisk module that you can find here: https://forum.xda-developers.com/showpost.php?p=78919730&postcount=119. No need to install custom driver, you can use the driver from windows update. I'm saying it to you also because your tutorial is among the first results on Google
Click to expand...
Click to collapse
Thanks for sharing this! I have to put test this Magisk module and then update my blog posts.
This driver is Qualcomm official driver for Xiaomi but yes if you can find it from Windows Update that is good.
olkitu said:
Thanks for sharing this! I have to put test this Magisk module and then update my blog posts.
This driver is Qualcomm official driver for Xiaomi but yes if you can find it from Windows Update that is good.
Click to expand...
Click to collapse
On oreo using the driver for xiaomi I had to manually insert the "COM" port, now with the drivers downloaded by windows the phone is autodetected*.
The device used by QPST is "USB\VID_05C6&PID_9091&REV_0404&MI_00". Sometimes with the module enabled the phone says "no service", to solve the problem just enable and disable the "Airplane mode", note that this does not interfere in any way with QPST/QXDM. Obviously you should disable the module after finishing the work.
And thak you very much for your work I still have some doubts about the lte_category file. Analyzing the firmware of many smartphones I understand how the files disable_cap_ies (disable 64qam/256qam capabilities), rrc_capable_plmn_list (limit the plmn that have capabilities not disabled) and the carrierpolicy works, but I found anything about lte_category :/
*In my case qpst is running in windows 7 compatibility mode
HandyMenny said:
@olkitu QPST on xz1/xz premium with Android Pie works using the magisk module that you can find here: https://forum.xda-developers.com/showpost.php?p=78919730&postcount=119. No need to install custom driver, you can use the driver from windows update. I'm saying it to you also because your tutorial is among the first results on Google
Click to expand...
Click to collapse
I can't get it to work on XZP Pie. Phone shows up in QPST, but as Unknown (No ESN). Same thing without the mod, but by running setprop commands from the shell. Used to work fine on Oreo.
jessenic said:
I can't get it to work on XZP Pie. Phone shows up in QPST, but as Unknown (No ESN). Same thing without the mod, but by running setprop commands from the shell. Used to work fine on Oreo.
Click to expand...
Click to collapse
Are you using a typec cable? Are you using the com port of the device "Qualcomm HS-USB Diagnostics 9091" ? Can you tell me if QPST see the device for few seconds during the boot?
Hi OLKITU, I wanted to ask you a question, I have a sony xperia xz1 compact Docomo version, rooted, I can open the band 20 following what you explain in your blog? https://mt-tech.fi/en/modify-sony-xz-xzs-xz-premium-xz1-and-xz2-lte-a-band-combos/
I am in France and I need the band 20. Thank you for your answer.
xavinaz said:
Hi OLKITU, I wanted to ask you a question, I have a sony xperia xz1 compact Docomo version, rooted, I can open the band 20 following what you explain in your blog? https://mt-tech.fi/en/modify-sony-xz-xzs-xz-premium-xz1-and-xz2-lte-a-band-combos/
I am in France and I need the band 20. Thank you for your answer.
Click to expand...
Click to collapse
Better buy device from France to support bands and carrier aggregation combinations used in France.
Thank you very much for your response, Olkitu. I am trying to enter qualcomm diagnostic mode, and I cannot. I have done everything you describe in your blog and nothing shows up in QPST. I even tried with the command (setprop sys.usb.config diag,adb), and I can't enter the diagnostic mode either. Do you know how to fix it? Thanks you
olkitu , little bit off topic but at what extent can be done with Qualcomm software to unlock the full potentioal of any phone? Im not talking about LTE and 5G, I mean Bluetooth, GNSS, Wifi, NFC, codecs. Because of the lack of tutorials on how to edit NV items EFS mods its a dangerous game.
xavinaz said:
Thank you very much for your response, Olkitu. I am trying to enter qualcomm diagnostic mode, and I cannot. I have done everything you describe in your blog and nothing shows up in QPST. I even tried with the command (setprop sys.usb.config diag,adb), and I can't enter the diagnostic mode either. Do you know how to fix it? Thanks you
Click to expand...
Click to collapse
Hi xavinaz.. I'm in the same situation as you. Have a docomo xz1 compact and need 20 band.
Have you found any solution ?
Right now I have Havoc 4.13 but I coudn't access the modem. But rolling back the phone to android 8 with the stock rom and using the temp root exploit you can access the modem as described in the tutorial.
But then I'm not be able to unlock the 20 band. So I go back to android 9 and now on havoc
Hello Bob, I have not been able to enable the band 20LTE. I have reviewed many blog and websites, and it is impossible.... I have not found the solution.
bob1791 said:
Hi xavinaz.. I'm in the same situation as you. Have a docomo xz1 compact and need 20 band.
Have you found any solution ?
Right now I have Havoc 4.13 but I coudn't access the modem. But rolling back the phone to android 8 with the stock rom and using the temp root exploit you can access the modem as described in the tutorial.
But then I'm not be able to unlock the 20 band. So I go back to android 9 and now on havoc
Click to expand...
Click to collapse
Hello Bob, I have not been able to enable the band 20LTE. I have reviewed many blog and websites, and it is impossible.... I have not found the solution.

Airtel Volte [How to Enable It]

Hey guys, I have finally arrived at a proper result after a long time.
Airtel supports Volte in all areas except J&k. , as mentioned on their website: https://www.airtel.in/volte/
Note: First u need to have an Airtel 4g sim along with a 4g/3g data plan.
So the steps to activate Volte is simple :
1. Go to the airtel Volte website given above.
2. Check for compatible devices
Note: You will be needing any one of the compatible devices listed by Airtel on their page.
3. Now you have to put your sim in the device [ compatible one ] and they reset the network settings of the device.
4. Now restart the phone and wait for some time.
5. After doing so you would get a link from Airtel.
Note: Something similar to this - Please open the following link to get manual instructions for service settings.
http://10.89.22.101:9080/SADM/Manualgrp=Auto+Device+Detection&rcId=4&msisdn=%2B91<airtelmobilenumber>&dev=Xiaomi+RedmiNote5Pro
6. After clicking on the link, you have to restart the device.
7. Airtel Volte will be enabled, now you can put it back in your Zuk Z2 and Volte is enabled.
And for those who want to know what rom I am running on,
Rom: Jaguar version January 10
Gapps: Mind the gapps
magisk: Installed
Hit the thanks button if I helped you.:good:
It's working guys.
I used galaxy j7 which is supported device. I waited for 15 mins and tried rebooting even i didn't get volte or sms mentioned above, Then I called customer care and asked about volte ,then they told your device is volte supported and keep using your device to get volte after 2 mins i got volte in j7 then i switched to z2 plus , volte is working now in z2
akshay pro said:
http://10.89.22.101:9080/SADM/Manualgrp=Auto+Device+Detection&rcId=4&msisdn=%2B91<airtelmobilenumber>&dev=Xiaomi+RedmiNote5Pro
Click to expand...
Click to collapse
Link not working for me.
mGforCe said:
Link not working for me.
Click to expand...
Click to collapse
Bro this is the link, ,that I got , u would also get a same one once you follow the above steps
I ve got VoLTE icon when I updated to aex 6.3, however when I make calls network falls back to 3G, which isnt supposed to happen. Anyone else?
Bro i Have airtel sim my z2 plus didnt compatible with volte services as this the airtel customer care employee says im on zui 2.0 help me out
Also i have very poor signal in my phone already changed various basband versions but nothing happened help me plz.
It worked for me by following the process ???????
Cyberwarrior17007 said:
Bro i Have airtel sim my z2 plus didnt compatible with volte services as this the airtel customer care employee says im on zui 2.0 help me out
Also i have very poor signal in my phone already changed various basband versions but nothing happened help me plz.
Click to expand...
Click to collapse
ok to solve your issue, all you gotta do is follow this website: https://forum.xda-developers.com/showthread.php?t=3695877 get the latest version of Indian stock rom guess (zui 2.5) and install that using qfil.
now set it up and enable volte on the device. Then follow the steps given above. Happy Flashing :good:
No matter what I try, wait for similar message as given in #1 or call customer care for volte settings they are just providing me with Instructions on how to enable VoLTE in settings.
I'm not able to get beyond that point i.e., not able to receive the link to enable VoLTE on my sim card.
I didn't got any link but kept my sim in poco f1 for 4hrs it's worked for me....
Now i can able to use volte in Z2 Plus....
anirudh.siddula said:
No matter what I try, wait for similar message as given in #1 or call customer care for volte settings they are just providing me with Instructions on how to enable VoLTE in settings.
I'm not able to get beyond that point i.e., not able to receive the link to enable VoLTE on my sim card.
Click to expand...
Click to collapse
which device are you using as an alternative to enable the volte on your sim?
LAKSHMI SAINATH said:
I didn't got any link but kept my sim in poco f1 for 4hrs it's worked for me....
Now i can able to use volte in Z2 Plus....
Click to expand...
Click to collapse
Sorry for the inconvenience u had to face during the process, but happy u got volte
Hi,
Can any one help me.
Airtel volte is working for me in first sim tray.
Problem is it is working only for 2 mins after that is directly going to 2 g network, then again i need to reboot/ aeroplane mod/ changing network to 3g and then to 4g to get volte. almost all roms are having issue for me. Cana may one please provide solution for thia
skishoreraju said:
Hi,
Can any one help me.
Airtel volte is working for me in first sim tray.
Problem is it is working only for 2 mins after that is directly going to 2 g network, then again i need to reboot/ aeroplane mod/ changing network to 3g and then to 4g to get volte. almost all roms are having issue for me. Cana may one please provide solution for thia
Click to expand...
Click to collapse
Type *#*#4636#*#* in dialpad
Select phone info then in network type select 4g or lte only
JV Spartacus said:
Type *#*#4636#*#* in dialpad
Select phone info then in network type select 4g or lte only
Click to expand...
Click to collapse
Hi, thanks for your help.
It is working, but after changing to LTE, I unable to call to anyone / unable to receive calls.
Please help me
skishoreraju said:
Hi, thanks for your help.
It is working, but after changing to LTE, I unable to call to anyone / unable to receive calls.
Please help me
Click to expand...
Click to collapse
You are not getting volte that's y
Put sim in sim1 slot
JV Spartacus said:
You are not getting volte that's y
Put sim in sim1 slot
Click to expand...
Click to collapse
Sim is slot1 only.
I have followed what you have said, I have kept LTE only in phone info after that I am getting volte with out any issue.
Now issue is after changing phone info to LTE I am unable call / receive calls
skishoreraju said:
Sim is slot1 only.
I have followed what you have said, I have kept LTE only in phone info after that I am getting volte with out any issue.
Now issue is after changing phone info to LTE I am unable call / receive calls
Click to expand...
Click to collapse
Volte is lost
You will have to qfil stock if volte is lost
JV Spartacus said:
Volte is lost
You will have to qfil stock if volte is lost
Click to expand...
Click to collapse
I think you did not understand my problem,
OK no problem, thanks for your suggestion

Oneplus 8 Pro VOLTE - Android 11

Hello All,
Has anyone been able to get VOLTE to work on OP 8 pro after Android 11 update ?
There was a method through QPC on Android 10. However it looks like since updating the Qualcomm device doesn’t show up anymore.
The option is still present on engineering mode & in settings but the VOLTE icon doesn’t show up & making a call results in network reverting to 3G (H+) .
Funny enough this update (11) got the 5G to work but disabled this option above.
I am on IN2025 North american varient on 1 sim in sim 1 , not rooted either but willing to try anything to get VOLTE to work.
Any insight would be appreciated !
Hello everyone, I am facing exactly the same probelm. Searching other threads including oneplus forums... there is a dead silence regarding this.
Seems folks dont know how to switch the phone to full port mode or serial mode to get qualcom tools to work and upload volte profile on the phone.
Hope this will be known soon. Otherwise really happy with Android 11, second SIM started to work.
Hi, I'm going to give you a feedback on the volte and vowifi with Android 11.
I have two French sim cards.
Under Android 10 I was how everyone had to use the PDC software and load the correct country profile. At each update obliged to redo the manipulation.
Since Android 11 and the first beta developers and open beta. No need to do this manipulation anymore.
I made a data wipe from the recovery, to start again on a healthy basis and Android 11. Of course I did not have the volte etc ..
I just downloaded the engineer mode apk and made the key combination * # 800 #
To activate the volte and the vowifi.
My OnePlus 8 pro is of course not recognized like everyone else by PDC under Android 11.
But when restarting the wifi rt lte calls were available on my two sim cards. Without having loaded any PDC profile.
Perhaps these operator options are native and integrated in Android 11 (at least for French operators).
Currently I am under open beta 2 global.
Envoyé de mon IN2023 en utilisant Tapatalk
View attachment 5118609
Hello Zayatoshi,
So you just wiped the phone after 11 update then it just shows as working ?
I am able to use engineer mode apk with *#801# combination the option is showing in settings but VOLTE is still not working making a call it goes to 3G (H+).
I am in Canada on IN2025
Hi. with me the wipe data was not linked to the activation of the volte and other. but with each change of version of Android and prefers to redo a clean installation. the * # 801 # key combination is useless because it is used to switch to full port Switch and then connect to PDC. friends seen under Android 11 the op8pro is not recognized it is useless. the wipe may be tested. but did you activate the volte and vowifi with * # 800 #, and restart your phone? These options must be active with the operators. And with Oos there is the volte logo which is present when this option is activated. I just activated these options and since the volte is present even after each update. without pdc uses
Envoyé de mon IN2023 en utilisant Tapatalk
Yes i activated with * # 800 # & restarted the phone ,there is no Volte icon & when i make a call Its going to 3G.
Ok guys by some miracle I got it to work!!!!
Here's what I did.
Install stable Android 11 full version.
Use *#800# to activate VOLTE then restart.
I then switch my sim card from OnePlus 8 Pro to my old galaxy S9 where VOLTE was working before then make 1 call to ensure volte is working on S9.
Then switch sim back to OnePlus 8 Pro & boom VOLTE is working on Android 11 !! .
VOLTE Is working for me on 4G after the update to 11 ,Is 5G working after the update?Mine is not working,It used to work on Android 10 but not VOLTE !
weird
both VOLTE/Wificalling works
Yes can confirm 5G is working after updating to Android 11 ??
5G
Gk0001 said:
Yes can confirm 5G is working after updating to Android 11 ?
Click to expand...
Click to collapse
What model is your phone and what country,please?
Mine is IN2023
Hello, my model is IN2025.
I am in Canada on Bell network.
VoLTE working fine here on IN2023 and Android 11 ... for some reason I need to set my SIM card into the "SIM2" slot for this to work, no VoLTE on SIM1
Very strange , I'm on Sim 1 Volte is working fine now.
Gk0001 said:
Ok guys by some miracle I got it to work!!!!
Here's what I did.
Install stable Android 11 full version.
Use *#800# to activate VOLTE then restart.
I then switch my sim card from OnePlus 8 Pro to my old galaxy S9 where VOLTE was working before then make 1 call to ensure volte is working on S9.
Then switch sim back to OnePlus 8 Pro & boom VOLTE is working on Android 11 !! .
Click to expand...
Click to collapse
I have followed this method and it did not change anything for me.
Provider - Freedom.
I have another phone Pixel 3a, pulled SIM from OP , put it to Pixel, ensured volte / wifi calling works there , switched SIM back to OP , no result.
Looking for another solution. I don't believe reset of the phone will make any difference.
Thanks all.
ansher said:
I have followed this method and it did not change anything for me.
Provider - Freedom.
I have another phone Pixel 3a, pulled SIM from OP , put it to Pixel, ensured volte / wifi calling works there , switched SIM back to OP , no result.
Looking for another solution. I don't believe reset of the phone will make any difference.
Thanks all.
Click to expand...
Click to collapse
Did you make a call on Volte on the other phone ?
Make sure it stays on LTE for that call to confirm its working (on other phone) then put the sim in the OnePlus.
Also, did you enable volte on OnePlus using engineering mode ?
When I enter *#800#, all I get are call log kits. I'm sure sure how or where I can turn on volte.
Same here
Gk0001 said:
Hello All,
Has anyone been able to get VOLTE to work on OP 8 pro after Android 11 update ?
There was a method through QPC on Android 10. However it looks like since updating the Qualcomm device doesn’t show up anymore.
The option is still present on engineering mode & in settings but the VOLTE icon doesn’t show up & making a call results in network reverting to 3G (H+) .
Funny enough this update (11) got the 5G to work but disabled this option above.
I am on IN2025 North american varient on 1 sim in sim 1 , not rooted either but willing to try anything to get VOLTE to work.
Any insight would be appreciated !
Click to expand...
Click to collapse
I'm having the exact same issue.
Tried to replace sims on a different phone and verify that the SIM does support VoLTE - didn't solved the issue.
Looking forward for a decent solution.
Ace91 said:
I'm having the exact same issue.
Tried to replace sims on a different phone and verify that the SIM does support VoLTE - didn't solved the issue.
Looking forward for a decent solution.
Click to expand...
Click to collapse
Did you make a call on other sim & verify Volte is working there ?
Gk0001 said:
Did you make a call on other sim & verify Volte is working there ?
Click to expand...
Click to collapse
Yes.

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