samsung s7 g930a no service issues after oreo update 8.0 - AT&T Samsung Galaxy S7 Questions & Answers

anyone having issues with the service? after the update the service completely stopped working for me. can't call out, no data nothing.

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5.1.1 update problems

I just got the Galaxy Note Edge this weekend and it updated to 5.1.1. Well before the update, for the brief few hours I had it on 4.4.4 and it updated over night on its own and before it updated the Wi-Fi worked great. Well after the update, it doesnt work. I have connected to multiple wifi connections and they all do the same thing, it just connects fine but the speed is horrible. All the data it shows about the connection is normal but its like the wifi antenna or something in the update has been messed up? I have no clue. I talked to sprint customer service for several hours and the only solution they could come up with was exchanging the phone. So I did. And still the same thing. So the only option left is that it is because of the 5.1.1 update. Unless someone has any other ideas to make the WiFi work normal....
factory reset after update 5.1.1

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G935V on Android N 7.0 issues with receiving calls/texts [Total Wireless]

I have been going through a weird issue on Total Wireless. When I use Android 6.0.1 and below, I have no issues with my service at all, everything works as it should. The issue comes into play when I use any Android 7.0 ROM, be it official or custom. Outgoing calls/4G data are fine, but I cannot receive any phone calls or send/receive texts. The only way for me to be able to receive calls and send/receive texts is to dial out once. After this, everything works as it should, that is until I reboot. Then I it goes back to the partial working state until I dial out again.
The issue persists whether I am using CDMA/LTE or Global Network modes. I have tried every single possible combination of starting with a fully working 6.0.1 firmware and upgrading through Smartswitch, with and without a full Wipe performed afterwards, doing a full 7.0 firmware flash. The issue is always present, and I am not sure if TW has issues with Android 7.0 or if there is a problem with my account. Their CS is absolutely useless in helping me with the issue, and our chats always end with if I can make a phone call, then the issue is resolved. They don't understand that the issue is still present, but it only crops up after a reboot of my device.
I have tried 3 different SIM cards and they have deleted and re-added/reprovisioned my device/number to their system but nothing seems to help this issue. APN is the usual TRACFONE.VZWENTP. It's really weird that it happens on two separate devices that I activate with my mobile number.
My only thought as to what it could be is maybe some weird provisioning error with the number coming from Verizon. Total Wireless doesn't have any type of VOLTE capabilities on their network, yet I was able to use a rooted Note 4 device and activate Advanced Calling/HD Voice and I believe Wifi calling as well and use it fine on their service. One oddity I noticed is that when the phone is in the initial 'Searching for Service' state on a fresh boot when I dial out while connected to Wifi, sometimes I will see Mobile Network Type change to IWLAN, whereas it usually says LTE. After dialing everything works correctly.
Any ideas on further troubleshooting steps I can take? If nothing can be done, maybe there is some way I can have a boot up script that makes a ghost phone call to any random number and immediately disconnects so I don't have to remember to dial out whenever I reboot my device?
Thanks
I don't have a solution yet, but you're not alone. I have a stock G935V (running Nougat) with Tracfone service running over Verizon's network. Whenever I start up the phone, the phone will indefinitely remain in a "Searching for Service" status until I initiate one phone call. Then the network instantly switches to "Verizon Wireless" and everything works correctly for as long as the phone remains on.
A long phone call with Tracfone and Verizon yielded no solution: They indicated everything is configured correctly in my account. Various replacement SIM cards didn't change anything either.
This issue happens with both stock Samsung S6 phones and the Samsung S7 phone in my household. All are running Nougat.
Any update here? My girlfriend's phone has the same issue since moving from Verizon to StraightTalk.
dbldown7 said:
Any update here? My girlfriend's phone has the same issue since moving from Verizon to StraightTalk.
Click to expand...
Click to collapse
Tracfone tried, half-heartedly, to solve the problem by sending me 3 different sim cards. The problem never went away. I just got in the habit of initiating a call to voicemail whenever I restarted my phone.
The problem went away when I upgraded my S7 Edge to Android v8 Oreo.
I have flashed the Nougat "U" firmware on my Verizon S7 Edge. I had VoLTE, hotspot, HD voice when calling someone on Verizon (but the HD symbol doesn't show on my dialer, only on theirs).
Only issue was that. when I introduced the TW SIM, the APN was auto set for Tracfone (and it wasn't working), so I had to manually change it to the TotalWireless one.
Since then I had received the Oreo upgrade and the following security update... and it's still OK.

Solution to fix my G935P sprint S7 Edge

Hi everyone i have a s7 edge as you know sprint version i do update it whenever it is available,I am right now living in PAKISTAN and using the sprint version everything works fine but it has few problems first of all the hotspot problem i cannot share with more than one person and even to share i have to use a quickshortcut app and second main frustrating problem is samsung dm service i have to force stop it every time when i restart my phone and i hate it and for this reason i avoid restarting it for weeks or a month,I want to ask if i can replace the ROM with the PAKISTAN version,is it safe and possible and if i cannot change ROM can i root it and as i told earlier it has the latest update from sprint,help me

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