I recently purchased a s9+ from a amazon seller thinking it was a universal unlocked phone. However, the phone is a At&t unlocked phone and I'm using tmobile. I believe I'm losing VoLte, wifi calling HD voice and band 71. I called Samsung and ubreakifix and they started flashing the pho e would brick the device. What can I do to make this phone compatible with tmobile? I don't know anything about flashing but was referred to this site. I greatly any information you guys have.
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Hey all,
I noticed that the moto z was a Verizon exclusive unless you bought the gsm unlocked version from Motorola. As for the Verizon version, if it's unlocked but still a Verizon phone would it work with TPO (the people's operator)? I believe TPO is an umbrella of T-Mobile. I read from multiple places that it depends on the phone to see whether or not a Verizon unlocked will work on another carrier. Some eBay listings I've seen have said Verizon models will work with others while others said it wouldn't. I haven't been to find any moto z specific info regarding this on the internet. If someone could give me some insight that would be much appreciated.
Thanks
hockeymonday10 said:
Hey all,
I noticed that the moto z was a Verizon exclusive unless you bought the gsm unlocked version from Motorola. As for the Verizon version, if it's unlocked but still a Verizon phone would it work with TPO (the people's operator)? I believe TPO is an umbrella of T-Mobile. I read from multiple places that it depends on the phone to see whether or not a Verizon unlocked will work on another carrier. Some eBay listings I've seen have said Verizon models will work with others while others said it wouldn't. I haven't been to find any moto z specific info regarding this on the internet. If someone could give me some insight that would be much appreciated.
Thanks
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The problem which you face there is with the LTE bands. Now a days GSM and 3G bands are standard and most phones support all the 3G and 2G bands for universal use. But the same is not the case for LTE bands. The Verizon unit may not have the LTE bands needed for T-Mobile and other US GSM carriers so you will be better off buying the unlocked version.
Was having an issue with the phone losing signal when in poor reception area. Do I need ATT to activate phone with imei of xz1 or in order to get LTE do I need to have a previous att branded phones imei on the sim card? Is there any ATT bands this phone doesn't support? Just don't know why phone says no service when it is in a bad reception area. My iPhone 8 works perfect in the same areas.
Use an IMEI of a LTE AT&T phone if possible. If you give AT&T the IMEI of this phone it won't be in their database and it will be provisioned as a 3G device at best.
Do you have any issues with it losing a connection when there is poor cell phone reception?
****, this phone isn't functioning with AT&T LTE? That's a problem... Can anyone else confirm?
I have AT&T. When I got the phone I called them, gave them the IMEI and they did whatever they need to do and my phone works with LTE.
I had previously contacted their technical support before getting this phone to verify that band 12 would work as well.
Frontier3 said:
I have AT&T. When I got the phone I called them, gave them the IMEI and they did whatever they need to do and my phone works with LTE.
I had previously contacted their technical support before getting this phone to verify that band 12 would work as well.
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Log into your AT&T account online and see what they have for a device for your number. It works fine on AT&T LTE but I have had issues for years when giving them the IMEI of my Sony phones. Maybe they have joined us in the 21st century.
So, from what I have been reading online and asking my IRL friends, it seems like AT&T doesn't exactly let devices that aren't sold by the carrier automatically have provisioning for LTE and LTE+. You have to call them.
Only negative in general is that VoLTE and Wi-Fi Calling cannot be enabled as a company policy at this time on phones not directly sold by the carrier. Even the Google Pixel 2 can't get VoLTE on AT&T.
...Anyway, solution so far is to call AT&T via 611 or from another line at (800) 331-0500 and ask to "Activate my SIM"... And then ask for an agent. You'll need to give them the IMEI of your phone.
Only then, after you reboot your device, will your phone be provisioned for LTE.
Is this all correct??
I haven't had success giving them my Sony IMEI. I have a carrier version LG V30 and when I bought it, AT&T gave me a new sim. I pulled it and put it in my XZ1 and I have LTE.
As augie7107 mentioned, the trick seems to be getting an IMEI of an AT&T phone attached to your account and sim and you can get LTE on other non-branded phones. The sim I've been using has been the same one I've had since a launch day AT&T iPhone 6. I've used the sim in a number of unlocked Android and Windows phones without major issues: Nokia 925, Moto X Pure, Amazon Fire phone, Nokia 930 (no LTE), Nexus 6p, Axon 7, Xperia XZ, XZs, XZ1, and now an Essential PH-1.
augie7107 said:
I haven't had success giving them my Sony IMEI. I have a carrier version LG V30 and when I bought it, AT&T gave me a new sim. I pulled it and put it in my XZ1 and I have LTE.
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aj.eats.sushi said:
As augie7107 mentioned, the trick seems to be getting an IMEI of an AT&T phone attached to your account and sim and you can get LTE on other non-branded phones.
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What did the AT&T agents say when they wouldn't activate LTE?
When I received my XZ1c last week, data would not work at all - LTE or 3G.
After playing around with settings for an evening, I chatted with the AT&T service rep first thing the next day and he was happy to enable LTE using the Sony IMEI. I don't know if it depends on customer service agent, or if there is a policy difference, or what.
Pros/Cons?
Pro: No AT&T preinstalled bloat
I'm using an Essential PH-1 unlocked with AT&T. No problems.
Used a Mate 9 unlocked on ATT with no problem. Most US unlocked phones should work without any problems on ATT
VoLTE or HD calling as AT&T calls it might work on an unlocked phone if they will provision your line for the service. They did it for my Pixel 2 and it worked after I got a new sim. I don't think wifi calling will work on any phone except an AT&T device. I would make good use of this service so I'm opting for the AT&T version. If I find wifi calling works on an unlocked model I may switch but I don't think it will. We do some vacationing at a place with wifi but no cell service. My wife's AT&T iphone has it and it's pretty cool.
If the unlocked version is snapdragon then it will work just fine and lock to USA AT&T. With the S8 phones they were unlocked until you put a SIM in it and then it locks to that carrier. I'm curious is the unlocked version the exynos or the Snapdragon?
highaltitude said:
If the unlocked version is snapdragon then it will work just fine and lock to USA AT&T. With the S8 phones they were unlocked until you put a SIM in it and then it locks to that carrier. I'm curious is the unlocked version the exynos or the Snapdragon?
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The snapdragon is the only processor sold in the usa whether you are unlocked or carrier specific.
Having issues with SM-G965F on AT&T LTE
I just activated my SM-G965F and I'm only getting 3G and 3.5G (H+). No LTE. If I change the mobile networks settings to nxtgenphone, it connects to LTE, then drops and I get no data. I can only use the 'phone' version. My AT&T account has a grayed out device for my account. Checking compatibility with the IMEI checker for AT&T says it cannot determine if it is compatible. the 2nd SIM slot IMEI number is considered invalid!
Heading to the AT&T store at the mall later... not expecting much help.
I have the Note 8 and it was a PITA to get it full working on AT&T. Only thing that interest me was the Volte for talking on the phone and data at the same time, never got it working 100%. Had AT&T provision with new chip still not working good, so I sold the unlocked and got an AT&T model and had it unlocked and all is working well.
Sent from my SM-G965U using Tapatalk
[Resolved] Having issues with SM-G965F on AT&T LTE
poodull said:
I just activated my SM-G965F and I'm only getting 3G and 3.5G (H+). No LTE. If I change the mobile networks settings to nxtgenphone, it connects to LTE, then drops and I get no data. I can only use the 'phone' version. My AT&T account has a grayed out device for my account. Checking compatibility with the IMEI checker for AT&T says it cannot determine if it is compatible. the 2nd SIM slot IMEI number is considered invalid!
Heading to the AT&T store at the mall later... not expecting much help.
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It was not the APN settings, entirely. It was that myAT&T would not recognize my IMEI number as a 9+. So, working with a store clerk at the local mall, she suggested to punch in a fake(last number altered) IMEI number using the in-store SM-G965U models. Since this has nothing to do with actually logging in or SIM verification, it worked. The SIM does its job and my account has an S9 (not a plus) on it, so when I changed to the 'nxtgenphone' APN settings, it is 'allowed' to log in (that's my best guess, anyway).
There is no other reason why the SM-G965F would NOT work on AT&T LTE since it has 3 of the 4 LTE bands (band30 is not included, but is only used in new, dense environments to alleviate network congestion -- my understanding).
dmb219 said:
The snapdragon is the only processor sold in the usa whether you are unlocked or carrier specific.
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So if I buy and ship an unlocked Galaxy S9 from Samsung website, it will have Snapdragon and not Exynos? I'm in a US territory.
I'm getting a good deal off their website with accessories and whatnot buying unlocked but I prefer Exynos
I'd rather not post and make a new thread. If someone else can confirm, I'd be much obliged
Yep it does. Just make sure it's on Snapdragon.
My question remains, when carrier unlocking an s9 or s9+, is there any way to make it available on different network types like say if the phone started out using a carrier that uses CDMA, is their any way to flash it to utilize t-mobile's frequency bands?
I unlocked two galaxy s9+'s that were on xfinity, which uses verizon towers. The two phones did unlock, but only for carriers utilizing CDMA. I was hoping they would be able to be used on t-mobile after unlocking, but they can't. Only messaging and data works using a t-mobile SIM card. Verizon works fine. SO my question still remains, is there a way to make it work?
I used itekimei .com to have the phones unlocked, as I found they were suggested here on XDA. And they weren't really able to answer my question either. They said it should work with t-mobile, but the conversation ended with "t-mobile is having problems with unlocked phones." This is super frustrating trying to get an answer.
Edit: I found this forum https://forum.xda-developers.com/galaxy-s9-plus/help/sim-unlocking-sprint-samsung-galaxy-s9-t3783571 which debates whether it will work or not. Also this one specifically about Xfinity https://forum.xda-developers.com/galaxy-s9-plus/help/xfinity-mobile-unlock-service-t3796349. But mine didn't work. I don't think U.S. S9's are cross compatible from CDMA to GSM. I have been searching and searching and can't find a way.
Yes, the US unit hardware is cross compatible. Heck, Verizon itself isn't all CDMA. They are phasing out CDMA soon and most of their network is LTE.
I have a US unlocked S9+ and can use any carrier in the US. You could too, all you need to do is flash the US Unlocked firmware to the device using Odin.
Your problem may be the Xfinity firmware restricting certain bands is all. Or possibly the device isn't really unlocked.
Regards,
Hi, I'm new here.
I own Universal Unlocked Samsung S10 Model # SM-G973U1 purchased directly from Samsung. I originally activated it on the Boost Mobile network and Ive decided to switch to AT&T prepaid service. I find out that the SM-G973U1 apparently wont utilize the AT&T Wifi Calling (Per: AT&T Forum). I was informed I'd need the SM-G973U.
I'm also not sure if I'm even getting the 4g connection (My phone shows LTE, LTE+, H, H+ and no connection).
I believe I have bad cell reception in my house.
If I were to install the SM-G973U firmware onto my SM-G973U1, would this solve my problem?
Will my phone still be an Universal unlocked phone?
If I choose to switch back to the SM-G973U1 firmware should I be OK?
Would I need to do the same if I were to switch to T-Mobile?
Would I be better off switching to T-Mobile?
Any other thoughts about this topic I should be aware of?
Thank you for your time.
Robert