Verizon S7 Edge (SM-G935V) on AT&T with LTE tip

[fredmc2020]

Hi all, just giving a quick 2 cents after my recent experience attempting to activate a Verizon S7 Edge on AT&T.

*Following a data reset you will need wifi for initial setup if you are using an AT&T sim card.

After following the guide in AT&T's web site for APN settings I was not able to get any data or mms service (this is using the NXTGENPHONE APN), so I did some experimenting. The following APN settings worked for HSPA+ data and mms, but NO LTE and NO MMS if connected to WIFI:

Name: ATT
APN: phone
Proxy: not set
Port: not set
Username: not set
Password: not set
Server: not set
MMSC: http://mmsc.mobile.att.net
Multimedia message proxy: proxy.mobile.att.net
Multimedia message port: 80
MCC: 310
MNC: 410
Authentication type: not set
APN type: default,mms,supl,hipri
APN Protocol: IPv4/IPv6
APN roaming protocol: IPv4/IPv6
Bearer: unspecified
Mobile virtual network operator type: none
Mobile virtual network operator value: not set

So at this point I had NO LTE service and NO MMS IF connected to wifi. Utilizing the LTE Discovery app from the play store I could see that LTE was "not available" but on my wife's S7 she was getting LTE on Band 4. To make a long story short I got online to an AT&T chat rep who told me that HSPA+ and LTE are the exact same and they just show up different on different phones... THIS IS NOT CORRECT!

I educated the dumba$$ rep that HSPA+ and LTE are not the same, and asked to speak to a tech support SPECIALIST. After a short wait for transfer the final solution that worked was to have the specialist change the IMEI on file for my phone number to an AT&T branded Note 5 (I had an old one on the account and just used that). I then restarted the phone and had to wait about 10 minutes for the HSPA+ to change to 4GLTE signal. MMS now works when connected to wifi as well! Please note that this was achieved using the above mentioned APN settings- using AT&T's guide for NXTGENPHONE still results in NO data or MMS.

So the bottom line when transferring a Verizon S7 Edge to AT&T:
1. Use the above APN settings
2. Call AT&T and change your phone number's IMEI in their system to an LTE capable AT&T branded device (in my case note 5 worked)
3. Reboot and wait about 10 minutes for the signal to register

**DON'T let a representative tell you that HSPA+ and LTE are the same thing.. we're talking 8 Mbps vs 50+ Mbps download and 2 Mbps vs 20+ Mbps upload!

Cheers


***Admin I accidentally posted this in the ROM section; can it be moved to discussion/guides? thanks

 

[elliwigy]

Did you by chance even try the U firmware? It should work on any US carrier since its the firmware on the US Unlocked S7E and should have necessary files

 

[nahtnam]

Did you by chance even try the U firmware? It should work on any US carrier since its the firmware on the US Unlocked S7E and should have necessary files

I think I'm going to give this a try, but im on T-Mobile.

 

[elliwigy]

I think I'm going to give this a try, but im on T-Mobile.

Ssmsung released the g930u device which is identical but with a universal firmware for the US.. its supposed to work on any US carrier including TMO

 

[nahtnam]

Ssmsung released the g930u device which is identical but with a universal firmware for the US.. its supposed to work on any US carrier including TMO

Sorry, im confused. I was thinking of following this guide and seeing if it works: http://forum.xda-developers.com/ver...de-flashing-sm-935u-firmware-verizon-t3415145

 

[elliwigy]

Sorry, im confused. I was thinking of following this guide and seeing if it works: http://forum.xda-developers.com/ver...de-flashing-sm-935u-firmware-verizon-t3415145

you just flash the odin tar then root as usual.. the U firmware is for the US unlcked

 

[davidmejiam7]

I flashed first the 935U firmware and then activated the phone with AT&T, once you insert the sim the phone reboots, changes the APN while it reboots and once it finished all data/talk/text services with AT&T are fully functional. I am guessing Verizon lokcs down the APN features of the 935V firmware so that we stay with verizon.

 

[dagr8est1]

I'm planning on flashing that rom tomorrow. The issue I have is modifying it for unlimited tethering as I use MetroPCS and pay for unlimited Internet. Fox fi does work but counts against my hotspot data. I tried it with a vpn but I use my hotspot for Netflix and I get an error saying to disable the proxy service or vpn. Wifi tether router connects but I get no Internet. I guess the main issue for me is getting the damn netflix to stream off my hotspot via chrome cast. I'm all ears, open to suggestions and help. Ps. I am currently rooted on Verizon rom. All apps are also paid apps not trying to free load here as I believe hard work should be compensated for. I also would love to have the video calling and wifi calling that I pay for.

 

[cadcamaro]

I flashed first the 935U firmware and then activated the phone with AT&T, once you insert the sim the phone reboots, changes the APN while it reboots and once it finished all data/talk/text services with AT&T are fully functional. I am guessing Verizon lokcs down the APN features of the 935V firmware so that we stay with verizon.

My brother actually tried this. I sent him my 935V after I flashed it to the 935U firmware. He had the same problems the OP had where MMS and data won't work unless it's on the HSPA+ APN settings. He's coming to visit soon so I will try going to a store and seeing if they can set it up with a new sim. Or should I just call them and have them switch the imei?

Not sure which route is better here.

 

[fredmc2020]

I actually just flashed the U firmware and now am right back where I started. Could be that for my region att has a hard time registering it. I'll be calling att this week and will post back my findings. I do like the U firmware better though. Seems cleaner and faster.

 

[cadcamaro]

I actually just flashed the U firmware and now am right back where I started. Could be that for my region att has a hard time registering it. I'll be calling att this week and will post back my findings. I do like the U firmware better though. Seems cleaner and faster.

I think AT&T just block LTE access for non branded devices. Since you mentioned that it works after you register the sim with your AT&T note 5.

 

[whirl08]

I just did a massive conversion of our squad car laptops for law enforcement at work from VZW to AT&T. The way they provision LTE access is trying the ICCID (SIM Card #) to the IMEID of the devices GOBI modem. All of my rigs came up on HSPA+ and not LTE. Once I sent the ICCID and IMEI of the particular unit to our government rep the mobile came up on LTE. I'd try calling them and saying you need LTE provisioned on your SIM. Provide the ICCID of your SIM, the IMEI of your device and your mobile phone #. Hope this helps.

Sent from my SM-G935V using Tapatalk

 

[cadcamaro]

I just did a massive conversion of our squad car laptops for law enforcement at work from VZW to AT&T. The way they provision LTE access is trying the ICCID (SIM Card #) to the IMEID of the devices GOBI modem. All of my rigs came up on HSPA+ and not LTE. Once I sent the ICCID and IMEI of the particular unit to our government rep the mobile came up on LTE. I'd try calling them and saying you need LTE provisioned on your SIM. Provide the ICCID of your SIM, the IMEI of your device and your mobile phone #. Hope this helps.

Sent from my SM-G935V using Tapatalk

I tried this with my brother's phone and they said that because it's a non at&t branded device there were limitations on what may or may not work when it comes to data or messaging because they don't guarantee anything as it's not theirs. So he had HSPA+ speeds for a few days until i saw this thread and called again. I gave them the IMEI from a display phone and it worked fine after that.

 

[whirl08]

I tried this with my brother's phone and they said that because it's a non at&t branded device there were limitations on what may or may not work when it comes to data or messaging because they don't guarantee anything as it's not theirs. So he had HSPA+ speeds for a few days until i saw this thread and called again. I gave them the IMEI from a display phone and it worked fine after that.

Glad to hear it man!

Sent from my SM-G935V using Tapatalk

 

[cadcamaro]

Glad to hear it man!

Sent from my SM-G935V using Tapatalk

Thanks, he didn't really care as he's just happy with the phone but I'm glad I got it working as it was intended. By any means necessary.

 

[fredmc2020]

After flashing the u firmware I called att and was able to get it activated again. Just takes persistence and patience lol.

 

[cadcamaro]

After flashing the u firmware I called att and was able to get it activated again. Just takes persistence and patience lol.

Glad to hear it worked. I remember when I had a Nexus on AT&T, and I had to call them to have LTE work using a different phones info lol.

 

[geoff5093]

Does anyone have any experience with Cricket? I'm thinking about using my S7 Edge on the U firmware with Cricket, but I know they don't have the same level or type of customer service as AT&T. I'm hoping it will "just work", but it sounds like it might not.

 

[Rich7591110]

I flashed first the 935U firmware and then activated the phone with AT&T, once you insert the sim the phone reboots, changes the APN while it reboots and once it finished all data/talk/text services with AT&T are fully functional. I am guessing Verizon lokcs down the APN features of the 935V firmware so that we stay with verizon.

this is untrue I'm on Verizon with my s7 edge and I have pulled out the sim and put in my Tmo sim and can use it my s7 is not payed off and can use with any carrier but u do have to have your settings to global

 

[daniel4653]

Does anyone have any experience with Cricket? I'm thinking about using my S7 Edge on the U firmware with Cricket, but I know they don't have the same level or type of customer service as AT&T. I'm hoping it will "just work", but it sounds like it might not.

Hi Geoff,

Don't know if you're still considering using a Verizon S7 edge on Cricket. I currently have one and it works fine with the network. And I have no issues with calls or MMS via LTE. You only lose connection go Band 17.

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