Develop Bugs

Need help - SM-G960U1 Jio VOLTE not working

Hey Guys,
I am from India. And I got an S9 gift from USA.
Jio volte doesn't work on the phone.
After intensive research I concluded I need to flash a stock indian firmware for Jio Volte to work. (There could be a better way I am not aware of)
My phone model is SM-G960U1 and on SAMmobile No Indian firmware is available for this model.
This is a Snapdragon Phone. Single Sim.
Please guide me. What firmware/process should I follow to have Jio Volte work on the phone.
Thanks in advance

I am facing the same issue since a few months now. I did try a few different firmwares without any luck. Were you able to get a solution to this?

Hiral08 said:
I am facing the same issue since a few months now. I did try a few different firmwares without any luck. Were you able to get a solution to this?
Click to expand...
Click to collapse
I am also desperate to make my T Mobile US S9 work in India with Jio. I don't see any detailed threads for S9. I see steps given only for S8 to enable VOLTE in a US snapdragon based phones.

Apparently, there is no solution available to this problem so far. Sadly we can't flash any CSC outside of USA just yet. The problem is two fold, Indian S9/S9+ variant is a dual sim version with exynos processor whereas, the US variant is single sim, Snapdragon based device. Moreover there are only a bunchful of users like us so the likelihood of getting any future support from Samsung devs is very less

jumbobombo said:
Hey Guys,
I am from India. And I got an S9 gift from USA.
Jio volte doesn't work on the phone.
After intensive research I concluded I need to flash a stock indian firmware for Jio Volte to work. (There could be a better way I am not aware of)
My phone model is SM-G960U1 and on SAMmobile No Indian firmware is available for this model.
This is a Snapdragon Phone. Single Sim.
Please guide me. What firmware/process should I follow to have Jio Volte work on the phone.
Thanks in advance
Click to expand...
Click to collapse
Im also had same issue but somehow i managed to get volte in one of the pie beta builds from there ive managed to change my csc for outside and now im getting volte in airtel, but jio is still a problem but in the stable pie build where as jio volte works on that beta version but its buggy

bunnykons said:
Im also had same issue but somehow i managed to get volte in one of the pie beta builds from there ive managed to change my csc for outside and now im getting volte in airtel, but jio is still a problem but in the stable pie build where as jio volte works on that beta version but its buggy
Click to expand...
Click to collapse
Can provide more details and links to the build.
I'll try and work something around and see what happens

Until or Unless we change salescode.dat to INS and flash indian csc file , we cannot get volte in our phone. i had same issue with my s8 us variant but with engboot i had change my salescode to "INS" but for s9 it has patched and we cannot change country code without any additional permissions

bunnykons said:
Im also had same issue but somehow i managed to get volte in one of the pie beta builds from there ive managed to change my csc for outside and now im getting volte in airtel, but jio is still a problem but in the stable pie build where as jio volte works on that beta version but its buggy
Click to expand...
Click to collapse
This pie beta would give u ability to change csc with dailer code *#243203855#
https://firmware.science/download?url=52758/1488/SS-G960USQS3ARI6-to-U3ZRJ7-UP
To get on to this build you need to be on oreo ARI6, u have to flash it via odin and then flash zrj7 wjth recovery
---------- Post added at 11:18 AM ---------- Previous post was at 11:16 AM ----------
rajeshca911 said:
Until or Unless we change salescode.dat to INS and flash indian csc file , we cannot get volte in our phone. i had same issue with my s8 us variant but with engboot i had change my salescode to "INS" but for s9 it has patched and we cannot change country code without any additional permissions
Click to expand...
Click to collapse
There is no INS for snapdragon when i went through csc list only GCf was working through which i could get volte working for airtel service provider

Mine s9 plus. Is there any links of firmware that you can share ?
Thanks in advance

I have SM-G960U, still no VoLTE, help me

Differences between European/US/International ROMs?

Hi
I haven't found anything regarding this. Could someone tell me the differences between the ROMs?
I actually use a Chinese H1900 variant with international OOS and I was wondering if there is any benefit for me to use EU as I'm in France.
Thanks

morback said:
Hi
I haven't found anything regarding this. Could someone tell me the differences between the ROMs?
I actually use a Chinese H1900 variant with international OOS and I was wondering if there is any benefit for me to use EU as I'm in France.
Thanks
Click to expand...
Click to collapse
Not really, eu rom lacks equilazer settings due to European laws. India rom have some specific benefits like cloud service 5gb. Other than that only hardware changes is band difference. Tested all on my hd1900. Using international
Sent from my HD1900 using Tapatalk

djtiesto22 said:
Not really, eu rom lacks equilazer settings due to European laws. India rom have some specific benefits like cloud service 5gb. Other than that only hardware changes is band difference. Tested all on my hd1900. Using international
Click to expand...
Click to collapse
I don't think even hardware is different, the bands are just turned off in the firmware.
Sent from my OnePlus7TPro using XDA Labs

djtiesto22 said:
Not really, eu rom lacks equilazer settings due to European laws. India rom have some specific benefits like cloud service 5gb. Other than that only hardware changes is band difference. Tested all on my hd1900. Using international
Sent from my HD1900 using Tapatalk
Click to expand...
Click to collapse
Just about to get a 7T and will need to flash either Global / Europe - do you think the equalizer settings are worth going with Global (currently run Bass Booster as 5T doesn't have equalizer either) or stick with Europe as UK based ?

Was there ever a full stock 10.0.6 International ROM posted? I flashed the European version when it was found but want to do a clean install and use International. The OP website only has 10.0.3 in the support page.

Lossyx said:
I don't think even hardware is different, the bands are just turned off in the firmware.
Click to expand...
Click to collapse
Since you have the HD1900, if you flash the EU or International rom, does it unlock the other lte bands? I'm considering buying the HD1900 version but everything I've read states that it lacks the lte bands I need (61 & 71).
Thanks!

Its definitely lacks those bands. Use Oxygen updater app from play store, there can be downloaded all latest updates. Just see in the startup menu what rom is currently on the device. Under my dwvice menu oneplus 7t is for international version, oneplus 7t( eu) is for European version and last will be oneplus ( India) India version. Then go to 3 dot menu and choose version you like to install same naming as the step before. Then select in update method full update, or try incremetal update if you don't see latest version of software now will be 10.0.6. Just follow instructions in the app and you will have new android version faster than the others. Using international version for two weeks no problems on my hd1900 Chinese verion of the phone.
Sent from my HD1900 using Tapatalk
---------- Post added at 03:24 AM ---------- Previous post was at 03:11 AM ----------
destrorox said:
Since you have the HD1900, if you flash the EU or International rom, does it unlock the other lte bands? I'm considering buying the HD1900 version but everything I've read states that it lacks the lte bands I need (61 & 71).
Thanks!
Click to expand...
Click to collapse
Don't worry those bands are needed only in rural areas in Usa from my knowledge by far. If you live in Europe flash international you will have equilazer unlocked. Some users seem to don't have equilazer unlocked, so you will find only if you flash yourself.
One more thing before flashing. you will need to have (older) or the (same) version rom varian. No posible to downgrade.
10.0.4 >> 10.0.5 ✓
10.0.5 >>10.0.6 ✓
10.0.4 >>10.0.6 ✓
10.0.6 >>10.0.4 ×
10.0.6 >> 10.0.5 ×
Sent from my HD1900 using Tapatalk

djtiesto22 said:
Don't worry those bands are needed only in rural areas in Usa from my knowledge by far. If you live in Europe flash international you will have equilazer unlocked. Some users seem to don't have equilazer unlocked, so you will find only if you flash yourself.
One more thing before flashing. you will need to have (older) or the (same) version rom varian. No posible to downgrade.
10.0.4 >> 10.0.5 ✓
10.0.5 >>10.0.6 ✓
10.0.4 >>10.0.6 ✓
10.0.6 >>10.0.4 ×
10.0.6 >> 10.0.5 ×
Sent from my HD1900 using Tapatalk
Click to expand...
Click to collapse
I discovered it won't let me flash from the EU version to the International version (both 10.0.6). It sees the International version as being older than EU and prevents the flash. If anyone has an idea how to force it I'd love to hear!

Indian version have call recording, cricket scores, cloud storage, caller identification, sms visualization and few more i guess.
Not sure which of these features have reached other versions now.

Lost Dog said:
I discovered it won't let me flash from the EU version to the International version (both 10.0.6). It sees the International version as being older than EU and prevents the flash. If anyone has an idea how to force it I'd love to hear!
Click to expand...
Click to collapse
You will need to wait for full version of international in app. Now is available only incremetal and thats the reason you can't flash.
Sent from my HD1900 using Tapatalk

djtiesto22 said:
You will need to wait for full version of international in app. Now is available only incremetal and thats the reason you can't flash.
Sent from my HD1900 using Tapatalk
Click to expand...
Click to collapse
Hi, i have the 7t hd1903 model. Can I flash through the local updater the European firmware over the global one with a Locked boot loader? (of course with the same firmware version) thank you

I always thought it was mostly hardware variations rather than software - mostly due to the LTE bands differ depending on the region.
OP's made it so it's not as attractive to buy a phone outside your region due to that. For example, on the original OP7, they left out a few critical bands T-Mo and AT&T needed here for full LTE compatibility. It would still work on the other bands, of course, but it may not work everywhere the US version would.
I think that's stupid, personally, but it seems to be more for marketing than anything else. I think it'd be less hassle to just have one phone with as many bands as possible, then just put different software on it to comply with the legal requirements of those markets.

michelemascia7 said:
Hi, i have the 7t hd1903 model. Can I flash through the local updater the European firmware over the global one with a Locked boot loader? (of course with the same firmware version) thank you
Click to expand...
Click to collapse
Yes offcorse, just download full latest update and flash over yours.
Sent from my HD1900 using Tapatalk

I have the HD1905 which is US. It has the Indian OOS installed and has the call recorder enabled which I need. Does the US OOS ROM have this feature that you can enabled? If not, can it be done with Magisk modules for call recorder?

djtiesto22 said:
Not really, eu rom lacks equilazer settings due to European laws. India rom have some specific benefits like cloud service 5gb. Other than that only hardware changes is band difference. Tested all on my hd1900. Using international
Click to expand...
Click to collapse
That's interesting. What about EU privacy laws makes it that they don't allow an audio equalizer?

djtiesto22 said:
Not really, eu rom lacks equilazer settings due to European laws. India rom have some specific benefits like cloud service 5gb. Other than that only hardware changes is band difference. Tested all on my hd1900. Using international
i'm running 10.0.11 global firmware on hd1903 (european version). i can"t find the equilazer settings. am i just blind?
Click to expand...
Click to collapse

The EU are stupid and ban anything

noodlenoggan said:
I have the HD1905 which is US. It has the Indian OOS installed and has the call recorder enabled which I need. Does the US OOS ROM have this feature that you can enabled? If not, can it be done with Magisk modules for call recorder?
Click to expand...
Click to collapse
The OOS native recording module gives you call recording on the US ROM, it's what I use.
Save the zip to your phone
You need to uninstall the module prior to any oos update. You can reinstall after the update.

How to revert to Oxygen OS

How can i flash oxygen os comming from custom rom.
Step by step guide will be appreciated

https://youtu.be/vY4bMoOhYSo

altojd said:
How can i flash oxygen os comming from custom rom.
Step by step guide will be appreciated
Click to expand...
Click to collapse
https://forum.xda-developers.com/oneplus-7t/how-to/rom-stock-fastboot-roms-oneplus-7t-t3979213 :good:

mrsupertom said:
https://forum.xda-developers.com/oneplus-7t/how-to/rom-stock-fastboot-roms-oneplus-7t-t3979213 :good:
Click to expand...
Click to collapse
So extract the zip file and double click on "flash-all.bat"?
Also i was on stock rom (indian version) before flashing a custom rom. Can i revert back to stock global rom?

dudeperfect said:
So extract the zip file and double click on "flash-all.bat"?
Also i was on stock rom (indian version) before flashing a custom rom. Can i revert back to stock global rom?
Click to expand...
Click to collapse
Yes, read instructions but I think you have to be in fastbootd first. Then double check the model number of your device and which ROM it comes with - it may be that the Indian ROM and global are the same or can both be installed on the same model, but I can't say for certain, I have global model with global ROM

mrsupertom said:
Yes, read instructions but I think you have to be in fastbootd first. Then double check the model number of your device and which ROM it comes with - it may be that the Indian ROM and global are the same or can both be installed on the same model, but I can't say for certain, I have global model with global ROM
Click to expand...
Click to collapse
Thanks for the quick reply.
I can't see my model number (hd-xxxx) on the custom rom(MSM) for some reason. It's listed as Oneplus 7t under the model number :/

dudeperfect said:
Thanks for the quick reply.
I can't see my model number (hd-xxxx) on the custom rom(MSM) for some reason. It's listed as Oneplus 7t under the model number :/
Click to expand...
Click to collapse
I'm not 100% sure what you're referring to as it's been a while since I used the stock ROM flashing package but maybe the below will help? It's my understanding Global will work for Indian, Europe and North American models (mine was Europe, I used global) and Chinese / HK and T-Mobile have their own images. Sorry I can't provide these.
VariantsEdit
Both OnePlus 7 and OnePlus 7 Pro have several variants. The differences are usually with the supported bands.
ModelVariantRegionOnePlus 7T
HD1900 Chinese/HK
HD1901 Indian
HD1903 Europe
HD1905 North America
HD1907 T-Mobile

mrsupertom said:
I'm not 100% sure what you're referring to as it's been a while since I used the stock ROM flashing package but maybe the below will help? It's my understanding Global will work for Indian, Europe and North American models (mine was Europe, I used global) and Chinese / HK and T-Mobile have their own images. Sorry I can't provide these.
VariantsEdit
Both OnePlus 7 and OnePlus 7 Pro have several variants. The differences are usually with the supported bands.
ModelVariantRegionOnePlus 7T
HD1900 Chinese/HK
HD1901 Indian
HD1903 Europe
HD1905 North America
HD1907 T-Mobile
Click to expand...
Click to collapse
Since i have an Indian model i should be seeing the hd 1901 under the "about phone" instead i see oneplus-7t, the model number has vanished :/

Question Can I change my Indian Software OOS to the International/European OOS?

I posted this on OP9 forum but OP9 Pro forum looks more active, sorry in advance.
I bought a OP9 chinese model LE2110, my software is oxygen OS 11.2.3.3 LE25DA (indian)
I want global version because this one has some bloatware and indian company cloud notifications that i dont want.
Is it possible to change it to international version? i downloaded the global one but i cant install it (local) because its a downgrade or equal to my current one. i updated to the latest version when setting up my phone.
The chinese version/model doesnt have wireless charging, so if there is a problem with compatability, can I change back to the indian variant?
note: I dont care about my data i can format everything, my old phone still works and I can transfer all data later.

McFozan said:
I posted this on OP9 forum but OP9 Pro forum looks more active, sorry in advance.
I bought a OP9 chinese model LE2110, my software is oxygen OS 11.2.3.3 LE25DA (indian)
I want global version because this one has some bloatware and indian company cloud notifications that i dont want.
Is it possible to change it to international version? i downloaded the global one but i cant install it (local) because its a downgrade or equal to my current one. i updated to the latest version when setting up my phone.
The chinese version/model doesnt have wireless charging, so if there is a problem with compatability, can I change back to the indian variant?
note: I dont care about my data i can format everything, my old phone still works and I can transfer all data later.
Click to expand...
Click to collapse
i think u can as i have changed from EU to indian OOS - i couldnt wait to try 11.2.4.4 lol
But the key is it must be later version that yr current OOS which means u are on 11.2.3.3 to EU 11.2.3.3 it will not work - that was based on my experience.
Agree with u the bloatwares are annoying.. perhaps i will go back to EU once a newer than 4.4 is out.
So far, all seems to work. I cant comment for 5G as its not available in my telcom

mgear356 said:
i think u can as i have changed from EU to indian OOS - i couldnt wait to try 11.2.4.4 lol
But the key is it must be later version that yr current OOS which means u are on 11.2.3.3 to EU 11.2.3.3 it will not work - that was based on my experience.
Agree with u the bloatwares are annoying.. perhaps i will go back to EU once a newer than 4.4 is out.
So far, all seems to work. I cant comment for 5G as its not available in my telcom
Click to expand...
Click to collapse
Wait so if a new update comes, and I DONT update. I can manually download the new international version from Oneplus website and do a local update? Then It will switch to the international version?
I hope they make a new update soon..

McFozan said:
Wait so if a new update comes, and I DONT update. I can manually download the new international version from Oneplus website and do a local update? Then It will switch to the international version?
I hope they make a new update soon..
Click to expand...
Click to collapse
yes u are right, skip the current india 4.4 update and wait for international or EU version. then do local upgrade

mgear356 said:
yes u are right, skip the current india 4.4 update and wait for international or EU version. then do local upgrade
Click to expand...
Click to collapse
Question: You did all this on your OP9?
The chinese OP9 doesn't have wireless charging hardware like the EU version, I'm afraid of compatibility problems.
Any ideas?

McFozan said:
Question: You did all this on your OP9?
The chinese OP9 doesn't have wireless charging hardware like the EU version, I'm afraid of compatibility problems.
Any ideas?
Click to expand...
Click to collapse
oh mine is OP9P EU version

McFozan said:
Question: You did all this on your OP9?
The chinese OP9 doesn't have wireless charging hardware like the EU version, I'm afraid of compatibility problems.
Any ideas?
Click to expand...
Click to collapse
I know you have the non pro china model but just to know, you have after switching to oxygen does the following are working?
5G, 4g+ (carrier aggregation), volte, google pay? and in which country are you?

Oh I just did local upgrade from India 4.4 to eu 4.4, it works.. So I think u can downloading and do it. Worst case, use oxygen updater and change back to global and revert

I see.. when you switched to eu 4.4, did it remove Cloud Service (indian version has this advertisement)? or Red Cable Club?

mgear356 said:
Oh I just did local upgrade from India 4.4 to eu 4.4, it works.. So I think u can downloading and do it. Worst case, use oxygen updater and change back to global and revert
Click to expand...
Click to collapse
I see.. when you switched to eu 4.4, did it remove Cloud Service (indian version has this advertisement)? or Red Cable Club?

McFozan said:
I see.. when you switched to eu 4.4, did it remove Cloud Service (indian version has this advertisement)? or Red Cable Club?
Click to expand...
Click to collapse
Cloud I manage to disable befor changing
But after eu version, I can Uninstall red cable app

mgear356 said:
Cloud I manage to disable befor changing
But after eu version, I can Uninstall red cable app
Click to expand...
Click to collapse
Thank you very much kind sir. I look forward to the next update

Hank87 said:
I know you have the non pro china model but just to know, you have after switching to oxygen does the following are working?
5G, 4g+ (carrier aggregation), volte, google pay? and in which country are you?
Click to expand...
Click to collapse
Sorry I just read your message.
I didn't switch to oxygen, i think the seller did the switch and shipped it to me.
4G works, 5G doesnt work. Im in Saudi Arabia.
I don't use google pay but there is NFC.
Check Signals/Bands for each phone version, and the signals and bands that your carrier use. You can find them in the specifications for each phone

McFozan said:
Sorry I just read your message.
I didn't switch to oxygen, i think the seller did the switch and shipped it to me.
4G works, 5G doesnt work. Im in Saudi Arabia.
I don't use google pay but there is NFC.
Check Signals/Bands for each phone version, and the signals and bands that your carrier use. You can find them in the specifications for each phone
Click to expand...
Click to collapse
I'm asking because I know sometimes chinese versions even if they have the bands for eu, carrier aggregation, volte or 5g still doesn't work.

Hi there, is there any way to force installing also an older version of EU OS?
I mean via fastboot or magisk?

No it's not possible i was confirm about it from multiple experts even from lightweight tennis stringing machines experts too but it's not working.

Question How to change my OP9 pro indian firmware to european ?

So my OP9 pro is a Chinese variant that came preloaded with oxygen OS out of the box but Indian variant, the phone works well except for one problem, it doesn't support 5G where i am ( Dubai using etisalat) while my wife's 9 pro came preloaded with the european firmware and 5G works fine on the same network, is there a way to switch to the latest european build ( C.62) and will i need to do a factory reset ?
thanks in advance.

Mardds said:
So my OP9 pro is a Chinese variant that came preloaded with oxygen OS out of the box but Indian variant, the phone works well except for one problem, it doesn't support 5G where i am ( Dubai using etisalat) while my wife's 9 pro came preloaded with the european firmware and 5G works fine on the same network, is there a way to switch to the latest european build ( C.62) and will i need to do a factory reset ?
thanks in advance.
Click to expand...
Click to collapse
MSM tool and yes it includes factory reset.

Check the 5G frequency is supported on your China varient.

ekin_strops said:
MSM tool and yes it includes factory reset.
Click to expand...
Click to collapse
thank you for the reply, where can i download the european version of the latest A12 firmware?

AndyC76 said:
Check the 5G frequency is supported on your China varient.
Click to expand...
Click to collapse
I've seen these before, the phone does support the frequencies of my carrier, but for some reason it wont connect to 5G at all.

Oxygen Updater - Apps on Google Play
Skip staged rollout queues and update your OnePlus device ASAP!
play.google.com
Global rom has 5G I don't think EU rom does. I could be wrong though. I had to switch to Global when I converted before to get 5G. But maybe it has changed since then.

NameIsOptional said:
Oxygen Updater - Apps on Google Play
Skip staged rollout queues and update your OnePlus device ASAP!
play.google.com
Global rom has 5G I don't think EU rom does. I could be wrong though. I had to switch to Global when I converted before to get 5G. But maybe it has changed since then.
Click to expand...
Click to collapse
Of course EU ROMs HAVE 5G.