TMOBILE VVM not working - OnePlus 8 Pro Questions & Answers

Been looking to fix this issue.
Still doesn't work
TMO VVM never works on OP unlocked

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[Q] Focus on T-mobile?

would the samsung focus work on tmobile network if i had the unlock code?
3G and all?
thanks i've searched online and didnt really find anything helpful
if you get the focus unlocked, it will work on tmobile, but you wont get the 3G speeds. Only EDGE, since the focus does not have the required HSPA frequencys used by tmobile.
thanks a lot, thats all i needed to know, Disappointed tho
Reviving this thread. So I have a Samsung Focus unlocked on Tmobile and I cannot get data to work. Any ideas on what could help? i have already added my apn of internet2.voicestream.com
Have you tried epc.tmobile.com
yes I have with no luck but thanks
in the usa depending where you are they either use epc.tmobile.com or wap.voicestream.com might try the network profile app too... i know samsung has addressed this issue and is in the process of fixing it to where when the unit is unlocked the settings from any gsm carrier will work... there is also a homebrew app somewhere that has worked with mixed results too...
ive tried those apns as well. thanks. and i tried the network profile app too any idea where i can get these homebrew apps?
probably in this forum or the wp dev forum here.....
Help
I been trying to figure out the internet and its driving me crazy. Anyone have anymore info on this?
You need to get the Samsung Tools.
http://forum.xda-developers.com/showthread.php?t=924497
Added: Run ADC option to automatically configure Data and MMS settings on reboot.
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Click to collapse
btw samsung focus: 3G Network HSDPA 850 / 1900 / 2100
Samsung Focus Unlock Code
I hope this isn't an issue, as I just ordered a Focus to replace my wife's v1 iPhone on T-mobile USA.
Anyone know a good place to get an unlock code?
The one on unlockcellphonecode.com/ is $45.00 which seems really high to me.
jaschen said:
I been trying to figure out the internet and its driving me crazy. Anyone have anymore info on this?
Click to expand...
Click to collapse
Post of the year! When you figure this **** out let the reddit cloud know.
As far as the frequency concerned, AWS spectrum used by T-Mo is 1700 and 2100 MHz.
Sent from my Bionix powered Vibrant
ATT Samsung Focus on Tmobile
To anyoe else thinking about getting a Focus to use on Tmobile USA network....
I can confirm everything is working and this is how I got it to work.
Everything works except obviously 3G because att and tmobile use different frequencies for 3G (until the merger at least) 2G works great though.
First thing you need to do is either get an unlock code from ATT (unlikey) or go to FastGSM.com and for 19.00 you can get your phone sim unlocked, so that your tmobile sim will work.
Now your phone works and my data was working out of the box as well.
However, you will not be able to send or recieve MMS messages.
To fix this, go to the market and clck on Samsung Apps, then install their Network Configuation app. Open the app and change network from ATT to Tmobile USA and now MMS will work perfectly.
Hope this info helps someone else.
brad1825 said:
I hope this isn't an issue, as I just ordered a Focus to replace my wife's v1 iPhone on T-mobile USA.
Anyone know a good place to get an unlock code?
The one on unlockcellphonecode.com/ is $45.00 which seems really high to me.
Click to expand...
Click to collapse
http://myworld.ebay.com.au/nckzone/
This one worked for me, and ppl here have confirmed it, its the cheapest i think there is.
brad1825 said:
To anyoe else thinking about getting a Focus to use on Tmobile USA network....
I can confirm everything is working and this is how I got it to work.
Everything works except obviously 3G because att and tmobile use different frequencies for 3G (until the merger at least) 2G works great though.
First thing you need to do is either get an unlock code from ATT (unlikey) or go to FastGSM.com and for 19.00 you can get your phone sim unlocked, so that your tmobile sim will work.
Now your phone works and my data was working out of the box as well.
However, you will not be able to send or recieve MMS messages.
To fix this, go to the market and clck on Samsung Apps, then install their Network Configuation app. Open the app and change network from ATT to Tmobile USA and now MMS will work perfectly.
Hope this info helps someone else.
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Click to collapse
are you using a grandfathered data plan ($10) or normal data plan?
detox8907 seems to be on $10 data plan.
Yes I am on the 10 dollar data plan. anyone have this working?
arkavat said:
are you using a grandfathered data plan ($10) or normal data plan?
detox8907 seems to be on $10 data plan.
Click to expand...
Click to collapse
No I am on a Family Plan with Unlimited Web.
detox8907 said:
Yes I am on the 10 dollar data plan. anyone have this working?
Click to expand...
Click to collapse
Have you tried the app suggested by Vico100 ?
brad1825 said:
To anyoe else thinking about getting a Focus to use on Tmobile USA network....
I can confirm everything is working and this is how I got it to work.
Everything works except obviously 3G because att and tmobile use different frequencies for 3G (until the merger at least) 2G works great though.
First thing you need to do is either get an unlock code from ATT (unlikey) or go to FastGSM.com and for 19.00 you can get your phone sim unlocked, so that your tmobile sim will work.
Now your phone works and my data was working out of the box as well.
However, you will not be able to send or recieve MMS messages.
To fix this, go to the market and clck on Samsung Apps, then install their Network Configuation app. Open the app and change network from ATT to Tmobile USA and now MMS will work perfectly.
Hope this info helps someone else.
Click to expand...
Click to collapse
WOWWWW I was searching to see if an unlocked ATT Focus with be able to MMS on T-Mobile US network. Thanks for the information.
I have a Focus and called ATT for unlock code. They said the unlock code will be provided after May 8th. So waiting for a month before I can use it on T-Mobile US.
My only concern was whether I would be able to send and receive picture messages. I hope your solution works next month!!

T-mobile S7 on AT&T?

Anyone using an unlocked T-mobile S7 with an AT&T Sim? Do you get full LTE? Any difference in signal strength, etc?
Just curious. Im about to trade my S7 edge for a regular S7 cause I like the smaller size, but it's an unlocked t-mobile model. I know they both use the same bands so it should work fine. Just wondering about anyone else's experience. Thanks.
I'm using an unlocked T-Mobile on AT&T. I don't have any signal problems. I, however, cannot get volte to work. I'm in the process of looking to see if anyone has been able to maybe flash AT&T firmware onto a T-Mobile variant, or if we might be able to flash the stock firmware and use an ATT CSC to gain volte. I also don't get notifications from visual voicemail but visual voicemail does work. The notification comes through like a standard voicemail notification and then I have to open the VVM app and refresh to see the new message.
Thanks for the reply. Good to know. I don't use the volte actually I have it turned off because I seem to drop more calls with it on then with it off. But yeah if an AT&T stock fw could be flashed to it I think the tmo model would be preferable to me.

VoLTE on Unlocked S8 Through Straight Talk

I was wondering if there is a way to get VoLTE working on a factory unlocked S8 that is using a AT&T Straight Talk SIM card. Right now when I make a call, the data goes to 'H'.
Anybody?
I'm not sure if it's possible but have you tried carrier switch your unlocked S8 to AT&T firmware. That's the only way I could get it to work on my unlocked S8 but I do have AT&T though as a carrier
How did you get it to work on att? I am on att as well and it does not appear to be working after carrier switching my unlocked S8 to att branded also wi-fi calling does not work.
ericsting said:
How did you get it to work on att? I am on att as well and it does not appear to be working after carrier switching my unlocked S8 to att branded also wi-fi calling does not work.
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It worked for me the first time but then the second time I went back to the Oreo beta they went back to AT&T I was only getting H after that when I was calling so I had to borrow my wife's phone IMEI and they provisioned it and it worked again
so how exactly do i go about doing that? I assume this involves calling att or going into a store and giving them the imei from another phone? Does the imei you use have to NOT be already used or can it be in use by 2 phones at the same time? Also so far we have not even told att about this phone we have just moved the sim card so wouldn't they still have the imei of the old phone or do they pull that automatically OTA? If they do pull it automatically then whats preventing it from getting updated again?

Working VoLTE on AT&T

Does anyone have VoLTE working successfully on AT&T? I've tried various tutorials to activate VoLTE and they don't seem to work for AT&T specifically. Every time I call AT&T, they tell me they have provisioned my SIM for VoLTE on my OP5 but it is still not working. With AT&T shutting down their 3G network in February 2022, I will have to purchase another device if I can't get VoLTE working successfully. I love my OP5 and I have zero desire to upgrade at this time. Any help would be appreciated!
@sjamie did you ever get volte working?
also on at*t
also trying to get htc m8 or m9 working on their "new" network. cannot even get data connection. F**k
mrrocketdog said:
@sjamie did you ever get volte working?
also on at*t
also trying to get htc m8 or m9 working on their "new" network. cannot even get data connection. F**k
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Click to collapse
No, unfortunately! I found a few people who said they did get VoLTE working on their 5T but I did not find one person who got it working successfully on their OP5. Ultimately, I switched to T-Mobile and VoLTE is working perfectly! My sexy lives on!

Anyway to get H910 to support T-mobile Wifi calling

I have an unlocked and rooted H910. It is my backup phone and I want to get it to work with a T-mobile mvno sim for wifi calling.
Calls and data work with the sim and the wifi calling toggle is there - but when I switch it on it spins and spins for a bit and then says failed.
I tried 10r stock and Alpha-Omega and they both do the same fail when the toggle is switched on.
I would download another ROM but am I chasing something that just will never work? Or is there a app or service that I can delete that ATT is checking for ATT sim before enabling Wifi calling?
Any tips are appreciated.
Thanks
Not sure if it matters to anyone - but I couldn't find an answer to this. I tried freezing a handful of ATT apps with Titanium Backup. I probably could have wrestled with that a little longer but I gave up. I now have an ATT MVNO sim and it all works fine. So I can confirm that the LG V20 works with wifi calling and VOLTE calling without much issue. (I did have to ask the provider to enable WiFi calling on their end - they made me confirm my 911 emergency address but then it just worked 10 mins later with a reboot)
So - if someone figures this out I am still interested in the answer!
Thanks for looking.

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