SM-N9208
Android 7.0
Baseband version: N9208ZTU4CQH2
This phone was bought abroad in Taiwan and I'm now using it in US with metropcs. It was working fine for the last year or so and I think it broke in 7.0. I tried reverting back to 6.0.1 but still same issue so I'm guessing something must have changed.
When it is on 4G/LTE. I can receive text, data and it works fine. But it takes like 1-2 minutes to make a call out. I can't receive any calls on 4G/LTE. Receiving calls only works on GSM mode.
I did a factory reset and also kies recovery. I also tried it without restoring any apps so it is completely fresh.
If it's an international version it won't be programmed correctly for wifi calling / volte in the US no matter what you do. I ran into that same issue with my N920i and wificalling/volte/carrieraggregation. Not that I could use wifi/volte because at&t prepaid, but still.
BlockOfDynamite said:
If it's an international version it won't be programmed correctly for wifi calling / volte in the US no matter what you do. I ran into that same issue with my N920i and wificalling/volte/carrieraggregation. Not that I could use wifi/volte because at&t prepaid, but still.
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Click to collapse
It did work for about a year with 4G /LTE.. Either something has changed with the carrier or that an update broke the phone. I assume using a different radio firmware would not work as well? Note 5 is old but note 8 is really expensive and I don't want to shell out so much. Might be time to use google voice and redirect all the calls if I can't get this to work.
Related
Hi does anyone else have disappearing calls when connected to LTE using a tmobile based s6?
This issue only occurs when LTE is active.
An incoming call will ring once or twice and go straight to voice-mail even though I have full bars
srzbznz said:
Hi does anyone else have disappearing calls when connected to LTE using a tmobile based s6?
This issue only occurs when LTE is active.
An incoming call will ring once or twice and go straight to voice-mail even though I have full bars
Click to expand...
Click to collapse
Go to your Phone App settings and turn off Wifi calling and VoLTE.
I'm sorry I have already disabled WiFi calling, and the problem persists but also - I don't have a separate 'VolTE' setting to toggle. Is it because it only appears if I have a T-mobile sim card inserted?
Thanks for your help!
EDIT for anyone who may run in to this issue: I fixed this by flashing Emporia Rom by iB4STiD, it seems to disable whatever t-mobile left over sorcery that was messing with AT&T calling because the rom is not based on t-mobile firmware
Now the calls come through 99% of the time but sometimes takes about 5 rings to connect to me. . arrr
srzbznz said:
I'm sorry I have already disabled WiFi calling, and the problem persists but also - I don't have a separate 'VolTE' setting to toggle. Is it because it only appears if I have a T-mobile sim card inserted?
Thanks for your help!
EDIT for anyone who may run in to this issue: I fixed this by flashing Emporia Rom by iB4STiD, it seems to disable whatever t-mobile left over sorcery that was messing with AT&T calling because the rom is not based on t-mobile firmware
Now the calls come through 99% of the time but sometimes takes about 5 rings to connect to me. . arrr
Click to expand...
Click to collapse
happens to me on even international firmware too. only works well right when i reboot the phone.
I have this issue also with a tmobile s6 on att. What method did you use to unlock the phone? I used the metro pcs firmware to unlock the phone and when I updated to 5.1.1 is when all the issues started. On 5.0.2 I used the tmobile unlock app and everything worked perfect. I receive one in every 3 incoming calls, like you said it rings twice and mine doesn't even go my voicemail, it just says "the wireless number you are trying to contact is unavailable then hangs up", out going calls take 30 seconds to a minute to connect, very annoying. Talked with att on the phone for hours about this problem and they cant seem to get it fixed on their end.
Same...I disabled lte and just use 4g, seems to work fine.
I have knox tripped but completely stock SM-N960F/DS that has Verizon VoLTE working perfectly fine !!!
I have an international SM-N960F/DS from ebay a few months ago. I had to install custom rom to get it work with Verizon. Hence Knox tripped.
Today, because of other reason, I decided to flash a stock rom to it. I took N960FXXU3CSF9_N960FOXM3CSF9_XSP which is for Singapore, and flashed to it and turned it completed stock except for tripped Knox. Afterwards, got an OTA update via wifi.
I have a already activated Verizon Sim and a Google Fi data-only sim, and they somehow work fine with stock rom. Verizon sim had VoLTE option, and registered IMS. I can make phone calls, text etc. obviously, there is no wi-fil calling or video calling.
I did have problem right after setting up the phone to get the sim cards to grab on signal and/or get LTE data turned on. took sometime to get them working, but once LTE worked, the VoLTE worked all the time. I did setup the phone without sim, and then put sims in there. in order to get signal, I had to get the phone on in a strong signal area for 30 min or so, and had tried to move sim around different slots or put one sim in first etc. I don't even know what worked at the end, but after an hour or so of different tries, now both sim cards worked well, and I can make phone call and receive phone call via Verizon.
Maybe Samsang finally did something to CSC to allow VoLTE. but if this is true, quite significant, as international Note 9 now works without any modification in at least Verzion if you don't need wifi calling or video calling.
I don't have T-Mobile voice sim card, therefore, I can't get if VoLTE works T-Mobile or AT&T.
So I am in a complicated situation.
Background: S10 5G from Verizon was refusing to SIM unlock, so I flashed ATT firmware on the phone and it accepted the SIM. However, I can either have 4G (HSPA) and be able to make and receive calls OR 4G LTE and no calls at all. (Also I am stuck on ATT firmware for now, so I can't flash back to VZW)
Jumping Forward: I discovered that using the Hangouts Dialer to make and receive calls DOES work while on 4G LTE.
The Question: What the hell is going on? Why do the regular dialers not work, but Hangouts does? What does it do differently?
And as a PS: I didn't have to do any of this for my S10+, just popped the Google Fi SIM in and all was good. Just this damn SIM locked S10 5G is trouble.
Mods, this can be closed. Hangouts is being closed this year so my workaround won't last. I ended up using a paid service to resolve the issue
Thread closed as per request of OP
I have a G960F. Just left an AT&T store trying to get this fixed, it's a national 3g shutdown. Data is still working fine but cannot make calls in and out. Everything was working fine last night. I guess calls are still operating on 3G even if 4G data is working. I'm wondering if updating to the latest ROM version would fix anything?
The model may not be hardware compatible regardless of firmware.
Do some research first.
Whitelisted are the AT&T and unlocked variants.
Hey so I've had my Rog phone 3 for over 3 months now, updated to A12. A constant problem has been the mobile network. Works fine for WhatsApp, but for normal browser (different browsers), other apps requiring internet, though the mobile data is on, it acts like it's offline, showing offline. I have to toggle on and off airplane mode for it to eventually work. Then if I turn off mobile data and turn back on, the cycle repeats. Please help
I'm having the same issue here too. The A12 Beta had choppy Network Connectivity that would just crumple my phone and not allow me to use Communications or Data, the random disconnects were absolutely infuriating, and after updating to the stable build, it was just not allowing Mobile Communication at all. (No Incoming or Outgoing calls)
I'm extremely happy about the downgrade FW however to allow me to revert to A11 that at least allows my phone to function as intended, even if I cannot enjoy the update that A12 has to offer.
Downgrading from A12 to A11 is an Upgrade. A12 has little to offer beyond making your OS look like a kindergarten app ...
Upgraded to A12 last night with the OTA. Data is fine but I cannot make calls, network immediately drops. no other issues with the phone though, 4g data works.5g never worked but volte did (At&t network) VoLte doesn't show up and I cannot find a place to enable it however there is a toggle for it in notifications. I spent about 3 hours at AT&T. So. here is info if it helps anyone. They told me that the phone is somehow locked to 3g calling even though the sim card shows LTE voice. After the update only calls dont work. The guy said he helped me before by provisioning an older sim card and using VoLte, however from what i understand The phone Does support more than 3g voice but if someone can correct me that would be cool. Also I found out if I put a sim card from an ATT iPhone it will connect at 5g (20mbps speed tested). I said well if I lose voice and have to figure out a wifi calling plan I would rather do it with 5G, however when they provisioned a 5G sim for me on my account it wont link above 4g+ (1-3mbps) same tower. So im at a loss. I know part of it is the new android 12 update, I know some of it is the stupid account provisioning and i know some is the phone. I DO NOT know what is what so any help would be awesome. If there is some way to add VoLte back to the phone in android 12, flash a new radio or something... but if someone can shed some light onto what is really happening so I know where I can press that would be slick. if the phone does communicate through something other than 3g voice then I can push back on At&t but i have kept this "less" a development platform and more a daily driver. I guess that has to now change LOL!
Andrologic said:
Downgrading from A12 to A11 is an Upgrade. A12 has little to offer beyond making your OS look like a kindergarten app ...
Click to expand...
Click to collapse
How can I downgrade. This new update is killing me
TheMightyElk said:
Upgraded to A12 last night with the OTA. Data is fine but I cannot make calls, network immediately drops. no other issues with the phone though, 4g data works.5g never worked but volte did (At&t network) VoLte doesn't show up and I cannot find a place to enable it however there is a toggle for it in notifications. I spent about 3 hours at AT&T. So. here is info if it helps anyone. They told me that the phone is somehow locked to 3g calling even though the sim card shows LTE voice. After the update only calls dont work. The guy said he helped me before by provisioning an older sim card and using VoLte, however from what i understand The phone Does support more than 3g voice but if someone can correct me that would be cool. Also I found out if I put a sim card from an ATT iPhone it will connect at 5g (20mbps speed tested). I said well if I lose voice and have to figure out a wifi calling plan I would rather do it with 5G, however when they provisioned a 5G sim for me on my account it wont link above 4g+ (1-3mbps) same tower. So im at a loss. I know part of it is the new android 12 update, I know some of it is the stupid account provisioning and i know some is the phone. I DO NOT know what is what so any help would be awesome. If there is some way to add VoLte back to the phone in android 12, flash a new radio or something... but if someone can shed some light onto what is really happening so I know where I can press that would be slick. if the phone does communicate through something other than 3g voice then I can push back on At&t but i have kept this "less" a development platform and more a daily driver. I guess that has to now change LOL!
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Click to collapse
Any developments on this? I am having the same issue.
Mine seems to lose connectivity after returning from do not disturb or when I'm inside with no signal for a while. I have to toggle airplane mode for sec, then I can use the phone. My wife texts me a few times a week, "It's going straight to voicemail again.", then I toggle it and call her. It will work fine for the rest of the day. Doesn't happen every time, though. Bizarre, though most of the time it's in the morning after returning from do not disturb mode. Kind of a hassle, but I'm coping. I'm going to start logging when it happens to see if any settings may be causing this.