Database Develop

LTE on D821 (India) with Airtel

Alright, so here's a little background.
I've bought my hammerhead in India. However, there were no "Airtel" bands to provide LTE for our phone.
I had performed compatibility checks and it confirmed that my phone was not supported.
I didn't bother much, cause I had WiFi everywhere.
Recently, we got a couple of jio Sims at my place.
Last night I popped in the Reliance Jio sim to check how the net works and well, it has free net, so decided to use it up.
I used it all merrily and was done with it for the day. Decided to pop back in my Airtel sim.
Here's the weird part.
I switch off my phone, pop in my Airtel SIM, boot it up.
To my surprise, I see LTE on my network bar.
I thought, may be my phone was not displaying the info properly, since I'm using a custom ROM.
I did a little digging and it was confirmed that my network had switched to LTE/4G.
I'm still not clear what happened here.
May be Jio activated any bands? Is there such a possibility?
If there's anyone out there who could probably give an idea as to what changed, it would be great
Please note that I'm using Airtel in "Karnataka".
Attaching my network info:
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vipinbp said:
Alright, so here's a little background.
I've bought my hammerhead in India. However, there were no "Airtel" bands to provide LTE for our phone.
I had performed compatibility checks and it confirmed that my phone was not supported.
I didn't bother much, cause I had WiFi everywhere.
Recently, we got a couple of jio Sims at my place.
Last night I popped in the Reliance Jio sim to check how the net works and well, it has free net, so decided to use it up.
I used it all merrily and was done with it for the day. Decided to pop back in my Airtel sim.
Here's the weird part.
I switch off my phone, pop in my Airtel SIM, boot it up.
To my surprise, I see LTE on my network bar.
I thought, may be my phone was not displaying the info properly, since I'm using a custom ROM.
I did a little digging and it was confirmed that my network had switched to LTE/4G.
I'm still not clear what happened here.
May be Jio activated any bands? Is there such a possibility?
If there's anyone out there who could probably give an idea as to what changed, it would be great
Please note that I'm using Airtel in "Karnataka".
Attaching my network info:
View attachment 3921227
Sent from my Nexus 5 using XDA-Developers mobile app
Click to expand...
Click to collapse
Like Delhi NCR, airtel has launched FDD-LTE on band 3 in KA. Hence, the 4G support.
Even jio has multiband 4G, band 3 and band 40.
---------- Post added at 11:05 AM ---------- Previous post was at 11:01 AM ----------
update:
http://www.datareign.com/4g-circles-in-india.html

Tagtag123 said:
Like Delhi NCR, airtel has launched FDD-LTE on band 3 in KA. Hence, the 4G support.
Even jio has multiband 4G, band 3 and band 40.
---------- Post added at 11:05 AM ---------- Previous post was at 11:01 AM ----------
update:
http://www.datareign.com/4g-circles-in-india.html
Click to expand...
Click to collapse
Oh.. since when? Was there something that I had to change? Cause I used jio just for few hours and then switched back to Airtel.. there must be some setting that changed that resulted in my Airtel giving me LTE as well.
That's what I'm more curious about. By the way.. thanks for the info.
Sent from my Nexus 5 using XDA-Developers mobile app

Exynos variant

Can anyone confirm the compatibility of the Exynos variant with T-mobile? Frequency check websites show 100% compatibility but looking for personal experience feedback. Also curious if B66 works as intended in the US.

TehPirate_ said:
Can anyone confirm the compatibility of the Exynos variant with T-mobile? Frequency check websites show 100% compatibility but looking for personal experience feedback. Also curious if B66 works as intended in the US.
Click to expand...
Click to collapse
Its good. I use the S7 Exynos on T-Mobile. Its perfectly fine but with no wifi calling and a bit worse service.

mweinbach said:
Its good. I use the S7 Exynos on T-Mobile. Its perfectly fine but with no wifi calling and a bit worse service.
Click to expand...
Click to collapse
Service is already hit or miss where I live now. Can you elaborate on how the service is worse? Band support or signal strength?

TehPirate_ said:
Service is already hit or miss where I live now. Can you elaborate on how the service is worse? Band support or signal strength?
Click to expand...
Click to collapse
I just noticed that the service is like just a little worse, you most likely wont notice a difference.

Anyone play around with the idea of loading the T-mobile S8 firmware onto the Exynos international version of the phone to see if that would be enough to get Wifi calling working? Wifi calling is essential to me since I work in a building with great wifi but no service.

JGoldz75 said:
Anyone play around with the idea of loading the T-mobile S8 firmware onto the Exynos international version of the phone to see if that would be enough to get Wifi calling working? Wifi calling is essential to me since I work in a building with great wifi but no service.
Click to expand...
Click to collapse
You cannot install Snapdragon firmware on an Exynos based phone. This will lead to a brick. The only thing from a Snapdragon firmware you can install I believe is CSC but don't quote me on that.

TehPirate_ said:
You cannot install Snapdragon firmware on an Exynos based phone. This will lead to a brick. The only thing from a Snapdragon firmware you can install I believe is CSC but don't quote me on that.
Click to expand...
Click to collapse
I was also wondering if flashing the tmobile CSC to the 955F would enable wifi calling. The only LTE band that the Exynos variant doesn't have that T-mobile uses is 66 and from what I've been able to research that's not sued int he NYC area. But wifi calling is critical. I use it a lot to call back home when I travel abroad.

EastVillage said:
I was also wondering if flashing the tmobile CSC to the 955F would enable wifi calling. The only LTE band that the Exynos variant doesn't have that T-mobile uses is 66 and from what I've been able to research that's not sued int he NYC area. But wifi calling is critical. I use it a lot to call back home when I travel abroad.
Click to expand...
Click to collapse
That is incorrect. The 950F does support band 66. I took this from service mode on my 950F
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I can't imagine 955F would be different from 950F
I received my phone yesterday. After a couple sites reporting it did support band 66, I dove in and was not disappointed.

TehPirate_ said:
That is incorrect. The 950F does support band 66. I took this from service mode on my 950F
I can't imagine 955F would be different from 950F
I received my phone yesterday. After a couple sites reporting it did support band 66, I dove in and was not disappointed.
Click to expand...
Click to collapse
Thanks but there's something weird about your screenshot. Band 32 is out of order and is not used on any Samsung phone. I think that should be 42. I find it hard to believe that there is a typo in the service menu.
I was using frequencycheck.com and willmydevicework.com as my sources. I agree that on this point I'm positive that the 950 and 955 should be the same.

EastVillage said:
Thanks but there's something weird about your screenshot. Band 32 is out of order and is not used on any Samsung phone. I think that should be 42. I find it hard to believe that there is a typo in the service menu.
I was using frequencycheck.com and willmydevicework.com as my sources. I agree that on this point I'm positive that the 950 and 955 should be the same.
Click to expand...
Click to collapse
Yeah it's strange and I do think it's a typo. But that's what service mode shows, regardless of which SIM I select.

With the exynos you'll also lose VoLTE. Meaning in areas where T-Mobile is using B12 LTE to extend the range of its network (B12 LTE 700mhz goes further than their EDGE and HSPA network (1700,1900,2100mhz) so if you're in an area and only have B12 LTE signal you won't be able to make or receive calls or texts. And in an emergency scenario if there was no other network for your phone to roam to, you also wouldn't be able to dial 911. Kinda an important feature imo.

I use the 930F on t-mobile and will likely do the same with the s8. If you care about rooting, you should get a 950f. It can be rooted easily and with root, you can get TKKG1994's CSC selection tool and use it to enable VOLTE/Wifi calling). If you aren't going to root, then the carrier phone is good.
I don't know how gigabit LTE is affected but I doubt in 2017 this is a game changer.

No VoLTE or VoWifi? Where are the settings.

Thought this phone was suppose to come with it. Received phone from EE on a monthly contract previous Samsung s7 had it but the XZ2 doesn't. Any ideas. Thanks
Sent from my ONEPLUS A5000 using Tapatalk

I go it under settings / network and internet / mobile settings.
Attaching a picture, but my language are in swedish.
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Skickat från min H8266 via Tapatalk

Mario.D said:
I go it under settings / network and internet / mobile settings.
Attaching a picture, but my language are in swedish. View attachment 4476371
Skickat från min H8266 via Tapatalk
Click to expand...
Click to collapse
Nope not there.
Sent from my ONEPLUS A5000 using Tapatalk

I'm using T-Mobile in the US and had WiFi calling and VoLTE available on my S8+ but it's not an option on my H8266. Doing some research it would have to be approved by T-Mobile for it to work with either of those and so far the XZ2 is not on the list. I found this information helpful, http://www.spectrumgateway.com/compatible-phones

chili_red said:
I'm using T-Mobile in the US and had WiFi calling and VoLTE available on my S8+ but it's not an option on my H8266. Doing some research it would have to be approved by T-Mobile for it to work with either of those and so far the XZ2 is not on the list. I found this information helpful, http://www.spectrumgateway.com/compatible-phones
Click to expand...
Click to collapse
Thank you for the info. Sony has been ignoring this fact for a while, none of the premium phones work on T-Mobile US VoLTE. It is not a certification matter as Chinese phones such as OnePlus work out of the box with T-Mobile US VoLTE making this very clear a Sony issue.
If you are on T-Mobile USA, you will have very limited coverage due lack of VoLTE support. Please be aware before you making a purchasing decision with Sony phones.

I've volte enabled and i was used previously with other phone but i can't use with xz2. Btw i tried to open phone menu service from dialer but provisioning volte option it's lock also i manually create a ims apn for volte but when i save the apn disappear so i give up.

hnt20 said:
Thank you for the info. Sony has been ignoring this fact for a while, none of the premium phones work on T-Mobile US VoLTE. It is not a certification matter as Chinese phones such as OnePlus work out of the box with T-Mobile US VoLTE making this very clear a Sony issue.
If you are on T-Mobile USA, you will have very limited coverage due lack of VoLTE support. Please be aware before you making a purchasing decision with Sony phones.
Click to expand...
Click to collapse
I just finished chatting with T-Mobile support and received this message: "Alright, I apologize about that brief delay. I spoke with a tech care department. They did confirm that our network will support the device! That's awesome news!"
So, it appears that T-Mobile has certified the device for use on their networks (in addition to which, according to the phonearena . com product info page it supports all necessary bands).

Try to update carrier service apk from apkmirror. Volte still not working for me but i see improvements on signal and wifi switching from mobile data is more fast

I have the H8296 Model,using it on T-Mobile US:
Here what's showing up in the hidden menu:

KOLIOSIS said:
I have the H8296 Model,using it on T-Mobile US:
Here what's showing up in the hidden menu:
Click to expand...
Click to collapse
I guess we'll find out tomorrow when the 8266 starts arriving on doorsteps!

I have the H8266 and here's what it shows.
It hasn't been officially released till tomorrow though.

chili_red said:
I have the H8266 and here what it shows.
It hasn't been officially released till tomorrow though.
Click to expand...
Click to collapse
Do you have an opinion for video calling in the regular (easily accessible) settings?
Sent from my Sony H8296 using XDA Labs

KOLIOSIS said:
Do you have an opinion for video calling in the regular (easily accessible) settings?
Sent from my Sony H8296 using XDA Labs
Click to expand...
Click to collapse
No I sure don't

chili_red said:
I have the H8266 and here's what it shows.
It hasn't been officially released till tomorrow though.
Click to expand...
Click to collapse
How do i get into this menu?

heildnix said:
How do i get into this menu?
Click to expand...
Click to collapse
Use this app:
https://play.google.com/store/apps/details?id=com.kasitskyi.hiddensettings
Sent from my Sony H8296 using XDA Labs

I was assured at BestBuy that XZ2 will support VoLTE on T-Mobile. Hopefully, VoLTE will also work on imported phones.

You can also bring up the menu by typing *#*#4636#*#* into the phone keypad.

Anyone figure this out?

Also curious as I just got my XZ2 and VoLTE and wifi calling options aren't there.

Berzerker7 said:
Also curious as I just got my XZ2 and VoLTE and wifi calling options aren't there.
Click to expand...
Click to collapse
Do you have the US XZ2 or international?
Sent from my [device_name] using XDA-Developers Legacy app

VoLTE - Bell Mobility

So when I first got my P20 Pro I had VoLTE enabled and working fine but one day I noticed the HD notification was missing the dialer app no longer had the HD call button. Just noticed that when I make a call my device does actually revert back to the 3G network and I can no long "multitask" online while on a call. Of course I've also lost the ability to make video calls.
I've checked the wife S7 and can still make calls over LTE with that one. So now I'm wondering if it is the Bell network or my P20 Pro? A quick check on Bell support site shows a list of devices compatible with their VoLTE, the list shows older devices but newer ones also, P20 Pro not listed. Can't see Bell deactivating VoLTE specifically for this device, or at least I'd hope not.
Anybody else on the Bell network have this happen or is VoLTE working for you? Before I factory reset I wanna know if it's just me.
FYI. Locked and stock

On Virgin as well, just checked. Another kick in the nuts.....
Sent from my CLT-L04 using Tapatalk

Starting to wonder if it was last firmware update 8.1.0.120 (stock). Which you on?

StatikBlue said:
Starting to wonder if it was last firmware update 8.1.0.120 (stock). Which you on?
Click to expand...
Click to collapse
I am on 9.0.0.160
Sent from my CLT-L04 using Tapatalk

Come on, are there no other P20 Pro users in Canada who can take a second to respond and help fellow users?
VoLTE setting is ON. Is it working for you. Do you have HD calls notification on top left, HD dial button in dialer app? When not on wifi does mobile network revert to 3G for phone calls?
Yes/No? Any info would help folks.

Fido told me VoLTE not supported on the P20 Pro and I've certainly never gotten it to work

Working fine on Rogers
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Notice a couple a days ago for me also on bell network not working.

Also working on rogers

ProAc_Fan said:
Fido told me VoLTE not supported on the P20 Pro and I've certainly never gotten it to work
Click to expand...
Click to collapse
That sucks since Fido is on the Rogers network and looks like it does work for Rogers users.
selfxd said:
Notice a couple a days ago for me also on bell network not working.
Click to expand...
Click to collapse
I'm starting to think the Bell network (Virgin) is the culprit here and not the device (fingers crossed). Curious as to why Bell would pull VoLTE support for the P20 Pro? Hopefully ain't no political thing (lol). Wonder if it's anything to do with Pie update and compatibility. I could say I lost VoLTE on my device almost a month now. I've tried everything in the book on my end even factory reset with no resolve and am more convinced now it's happening on Bell's side on things. Which really sucks cause I hate their support system but need to contact them find out what's going on with my service.
Thanks for the answers folks. Keep them coming.

I am on the Rogers network using an unlocked Bell P20 pro and do not have the VoLTE function so i wonder if it is disabled on Bell hardware?

Cobthaich said:
I am on the Rogers network using an unlocked Bell P20 pro and do not have the VoLTE function so i wonder if it is disabled on Bell hardware?
Click to expand...
Click to collapse
Google about this. Rogers and Fido do the IMEI whitelisting so if you don't buy a device from them you are out of luck

just to inform you guy, I have p20 pro telus(unlocked) I put bell sim and asked bell to enable volte. it works. and it should work on virgin too.
clt-l04 8.1.0.120(c792)

auto_art said:
just to inform you guy, I have p20 pro telus(unlocked) I put bell sim and asked bell to enable volte. it works. and it should work on virgin too.
clt-l04 8.1.0.120(c792)
Click to expand...
Click to collapse
Only Rogers(Fido) blocks you from using their IMS

I've been wondering the same. Got my P20 Pro with Bell a couple of weeks ago. About a week ago, I noticed "HD" at the top left of my notification bar, but it only lasted a few seconds and never returned. After that, I discovered that I'm always connected to LTE, but when I make a call it drops to 3G, and then after the call it reverts back to LTE.
When I insert the Bell SIM into my S7 Edge, it stays connected to LTE at all times.
How is it possible that it showed "HD" very briefly several days ago and never came back? Perhaps Bell was just testing HD on the network for a few minutes? I've always had VoLTE enabled in the settings.
On a somewhat unrelated note, I have two friends with an iPhone 8+, one on Rogers, the other on Bell, and they both drop to 3G when on a call.

Thanks for the info. I will contact them.

Cobthaich said:
Thanks for the info. I will contact them.
Click to expand...
Click to collapse
Please keep us posted!

Just got of the phone with Rogers, the Support specialist tried and also followed up with their network specialist, it is a no go, this was what they said:
"Since the device is not a Rogers device it wont allow VoLTE calls and the VoLTE notification is not being pushed to this IMEI. This gets enabled on the network and since the device is not Rogers it wont allow for it to register. So just make sure when you purchase the phone its from the same carrier as the one you are looking to use as it can cause compatibility issues. All phones get a pre-configured file when they are sent to Carriers and based on the carrier provisioning of the device it becomes compatible to the network."
It looks like some of us are out of luck.

mike613ottawa said:
How is it possible that it showed "HD" very briefly several days ago and never came back? Perhaps Bell was just testing HD on the network for a few minutes? I've always had VoLTE enabled in the settings.
Click to expand...
Click to collapse
I've had this device for about 3 months now and would say it's been about 1 month since I've lost VoLTE service
Just got off the phone with Bell support. Didn't really get anywhere as expected, other then many apologies and an open service ticket to try and find out if it's their end or the P20 Pro. Should hear back within 2 weeks. Again, as expected.

Fido sucks.. might switch to Rogers soon... my work has a ok deal.. $55/mo for 6gb and unlimited calls/text canada wide.

Love the phone, but hate all the issues with Verizon

I am seriously considering returning this bad boy. It sucks because it's a great device. But so many friends & family have newer iPhones so I can't answer their calls. Also no VoWifi is a killer for me. I'm so torn, because OP knocked it out of the park with this one.
Sent from my GM1917 using Tapatalk

skinnytoo2 said:
I am seriously considering returning this bad boy. It sucks because it's a great device. But so many friends & family have newer iPhones so I can't answer their calls. Also no VoWifi is a killer for me. I'm so torn, because OP knocked it out of the park with this one.
Click to expand...
Click to collapse
why cant u answer call feom iphone
my dauther have iphone xr an i have no problems answer her call

-fluffy- said:
why cant u answer call feom iphone
my dauther have iphone xr an i have no problems answer her call
Click to expand...
Click to collapse
You haven't seen these reports? https://www.droid-life.com/2019/05/...s-7-pro-owners-seeing-dropped-calls-no-texts/

No issues wtih Verizon here!

Uhhh... Dual SIM Fi/Verizon here, no issues with calls or voicemail.
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Verizon has always been a pain in the ass if you just swap SIMs. Call them. Register it. :good:

Get a new carrier.

All the other carriers service are inferior in my area.
Sent from my GM1917 using Tapatalk

You must call Verizon and give them the Imei. A standard Sim swap will not make this phone work for certain aspects on Verizon. When they do the Sim swap they turn off CDMA for your line which makes it actually work.

No SIM swap is needed for VZW. You just have to tell them you have a certified phone that needs to be set up as "CDMA-less". If you had a 6t on VZW, you already have that.
OnePlus is aware of the issues with HD calling set on the newer iPhones so it will be a software fix.
All that said, the 7 Pro is not officially certified by VZW as the 6T was.

The only annoying bug for me is the caller ID in the dialer showing restricted
Sent from my GM1917 using Tapatalk

tanman21 said:
You must call Verizon and give them the Imei. A standard Sim swap will not make this phone work for certain aspects on Verizon. When they do the Sim swap they turn off CDMA for your line which makes it actually work.
Click to expand...
Click to collapse
I call BS on this. I tried online and said my current sim that was in my S10+ was bad would not allow for a transfer. I swapped sim to 7 pro and no issues with calls/texts/data etc etc works flawlessly
Sent from my GM1917 using Tapatalk

You can believe whatever you want I am just trying to help you. That’s exactly what it does for me the system is not designed for an online device swap to a CDMA-less device. They can definitely do it for you through chat as well. But hey if you want to keep having problems enjoy .

Only thing I had to do was have them enable CDMA-less back when I switched to the McLaren 6T from the Pixel 2 XL. Pulled that same SIM out of that phone and popped it in this and have only noticed the RESTRICTED caller ID thing today. No issues with texts or anything else.

Swapped my wife's SIM from HTC 10 straight into her 7Pro. Everything but incoming texts worked. Went online and ran through the "ad a new phone to existing line" tool and all works great on VZW; her backlog of texts came streaming in (wifi calling/texting aside)
Don't need to actually talk to anyone. All online for me.

Make sure you call Verizon and have them add CMDA-less Roam onto your line. You will not get proper service otherwise. I had a OnePlus 6t on verizon with zero issues. You might need to call more than one time to find a rep that knows what you are talking about. Just tell them there is a feature that needs to be added to your line and it is called CDMA-less Roam. Source: I used to work at Verizon

You don't even have to call, you can do it directly through the website. Registering the IMEI fixed all those problems and took about 2 minutes.

New update out there to download and install manually, works great I'm on Verizon and it fixed the iPhone incoming call issue!!
https://forum.xda-developers.com/oneplus-7-pro/help/verizon-to-verizon-incoming-calls-t3932394/page8

mdonnelly1127 said:
New update out there to download and install manually, works great I'm on Verizon and it fixed the iPhone incoming call issue!!
https://forum.xda-developers.com/oneplus-7-pro/help/verizon-to-verizon-incoming-calls-t3932394/page8
Click to expand...
Click to collapse
Can confirm that this works perfectly. Only issue I have now with VZW is the no wifi calling. Came from a pixel 2xl, and this phone is night and day better. My data speeds are even much much faster now as well.
Sent from my GM1917 using Tapatalk

[/ it appears that 9.5.8 fixes the caller ID issue on Verizon