sm-t825c service compatibility - Samsung Galaxy Tab S3 Questions & Answers

i have confirmed the 825c will not work on the project fi network... a code T077 comes up which is "device not compatible" even tho with wifi off i have full signal strength lol
if anyone has other option for me to try lmk!

Depends on your area, it's likely that T-mobile have shutdown the PCS 3G network thus you have no data connection in your area with a T825C since it doesn't connect to LTE network
Sent from my SM-G955F using Tapatalk

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ATT customer here. Is there a way to set up Roaming on this phone?

Just like the title says. Some areas where i drive i dont have any signal at all, and i was wondering if there is a way to set this phone up to roam on T-mobile or another gsm network if i am outside the coverage area. I know the phone is capable of using t-mobiles edge network according to specs.
It doesnt work if you check the data roaming under mobile network settings?
Kaze105 said:
It doesnt work if you check the data roaming under mobile network settings?
Click to expand...
Click to collapse
Was not sure if that was for data alone or voice too. I guess it's for both.. Will Give that a try thanks.
Sent from my GT-I9100 using Tapatalk

[Q] How to control roaming behavior

Hi.
I am using a new mobile operator. Since their network is very new and there are a lot of places where there is no coverage of their own network, they offer free roaming on another operator.
The problem is that, if the signal strength is very weak on the home network, it will take a lot of time for the phone to automatically start roaming. I've seen a situation when my coverage was 0 out of 4 bars and the phone was still connected to this network for a few minutes before it finally "decided" to roam.
Is there a way I can have a better control over this process, for example to choose that it will roam to the other network immediately if the signal strength drops below 1 bar?
Thanks.
romitkin said:
Hi.
I am using a new mobile operator. Since their network is very new and there are a lot of places where there is no coverage of their own network, they offer free roaming on another operator.
The problem is that, if the signal strength is very weak on the home network, it will take a lot of time for the phone to automatically start roaming. I've seen a situation when my coverage was 0 out of 4 bars and the phone was still connected to this network for a few minutes before it finally "decided" to roam.
Is there a way I can have a better control over this process, for example to choose that it will roam to the other network immediately if the signal strength drops below 1 bar?
Thanks.
Click to expand...
Click to collapse
As long as I know it is not possible.
But if you know the name of temporary(that roamong operator)
Then you can try this.(when signal is low)
1)Go to settings===>Wireless and network settings===>Mobile network.
2) Click Select operators. It will search (be patient. Takes lot of time).
3) When list appears select the other operator.
Sent from my GT-S5360 Gadget of Mass Destruction using xda-app
Using CWM........Busybox Commands........No I use my hands

[Q] Toggling between 3G network to Edge

I am having this peculiar problem that i am facing while using mobile data. I m using reliance network. When i have set the mobile data to 3g, it seems to run on edge network even though the network is full. Why this is so? Anybody can help?
hhmmk said:
I am having this peculiar problem that i am facing while using mobile data. I m using reliance network. When i have set the mobile data to 3g, it seems to run on edge network even though the network is full. Why this is so? Anybody can help?
Click to expand...
Click to collapse
You've got to activate 3G on Reliance first...
Some providers do not preactivae 3G on the sims...
FYI, on Aircel u've got to send a text START 3G to 121 to start using 3G..
Check with your provider whether they've got some provisions like this...
Just check whether there is any E icon on the network icon or is it showing 3G/H+???
The latter shows that 3G is activated...
Hope this helps... :good:
hhmmk said:
I am having this peculiar problem that i am facing while using mobile data. I m using reliance network. When i have set the mobile data to 3g, it seems to run on edge network even though the network is full. Why this is so? Anybody can help?
Click to expand...
Click to collapse
Some Times 3g network doesn't work specially on reliance even i also faced such problem but not more than 1min . u can try manual network selection or by restarting ur device.:good:
g33kparineeti said:
You've got to activate 3G on Reliance first...
Some providers do not preactivae 3G on the sims...
FYI, on Aircel u've got to send a text START 3G to 121 to start using 3G..
Check with your provider whether they've got some provisions like this...
Just check whether there is any E icon on the network icon or is it showing 3G/H+???
The latter shows that 3G is activated...
Hope this helps... :good:
Click to expand...
Click to collapse
here i find the Reliance network is not providing the service for what the user is using. if one has enabled all the activation process, why it should not start with the 3g network directly even if the signal is poor.
hhmmk said:
here i find the Reliance network is not providing the service for what the user is using. if one has enabled all the activation process, why it should not start with the 3g network directly even if the signal is poor.
Click to expand...
Click to collapse
Check the icon on your network bar and report back what you're seeing???
E or 3G/H+???
Until you mention hat I can't help ya...
g33kparineeti said:
check the icon on your network bar and report back what you're seeing???
E or 3g/h+???
Until you mention hat i can't help ya...
Click to expand...
Click to collapse
signal shows 'e' then after 4 to 5 minutes it shows h+ inspite of having full network
hhmmk said:
signal shows 'e' then after 4 to 5 minutes it shows h+ inspite of having full network
Click to expand...
Click to collapse
That's because the area where you're at present does not has 3G coverage...
This happens to any network...
If you go out of 3G coverage region or reach the fringes, this occurs...
3G problem on Moto E
I'm using the Motorola Moto E - Global GSM - Unlocked - 4GB (Black) sold on Amazon.
I relative of mine coming in from UK brought it for me.
I have been using it for 2 days in Mumbai and my carrier is Vodafone.
The problem is that i am unable to connect to 3g on my handset no matter what I do. I have accessed the Supermenu and tried using the WCDMA only option in which i was unable to connect to any network at all and the GSM option only Gives me EDGE as my network type. I know it is a Handset issue and not a carrier issue as i tried my SIM card in an Samsung Galaxy S4 and was able to use H+ network.
I am new on this forum so if you guys could help me i'd be really grateful.

How can 4G signal strength significantly be better than 3G or 2G?

Poco F1 (MIUI Global Stable V11.0.8.0.QEJMIXM ROM) has significantly better 4G signal strength than 3G or 2G. In fact I got problem with that, when I'll recieve call or make a call, the phone automatically from 4G goes to 3G or 2G, and in that moment signal strength bars goes from 5 bars (4G) to 1-2 bars (3G) and often other side cannot hear my voice. Later I choose manualy network (3G or 2G) and when I try yo make a call => "Cellular network not available"
What should be the problem? Is it software or hardware problem? ...btw I make a clean install/flash thru fastbot of MIUI Stable V11.0.8.0.QEJMIXM few days ago, but I cannot notice some differences
VkriLAB said:
Poco F1 (MIUI Global Stable V11.0.8.0.QEJMIXM ROM) has significantly better 4G signal strength than 3G or 2G. In fact I got problem with that, when I'll recieve call or make a call, the phone automatically from 4G goes to 3G or 2G, and in that moment signal strength bars goes from 5 bars (4G) to 1-2 bars (3G) and often other side cannot hear my voice. Later I choose manualy network (3G or 2G) and when I try yo make a call => "Cellular network not available"
What should be the problem? Is it software or hardware problem? ...btw I make a clean install/flash thru fastbot of MIUI Stable V11.0.8.0.QEJMIXM few days ago, but I cannot notice some differences
Click to expand...
Click to collapse
It means that VoLTE (Voice over LTE) is not enabled or it is not available in your region. That is why it is switching to 3g network to make a call. As for the signal bars, never trust miui on that. Got to about phone -> and find a option where it shows imei, sim status, etc.
callmebutcher101 said:
It means that VoLTE (Voice over LTE) is not enabled or it is not available in your region. That is why it is switching to 3g network to make a call. As for the signal bars, never trust miui on that. Got to about phone -> and find a option where it shows imei, sim status, etc.
Click to expand...
Click to collapse
Yes, in my country VoLTE is not available, but I don't see that as an insufficiency, I use it only for data/internet 4G.
MIUI signal bars should "work" same for both 4G and 3G/2G, i think it is some other problem. Btw use it code *#*#4636#*#* (testing mode) and there i can manually set my network (WCDMA only, GSM only, LTE only, CDMA, TD-SCDMA/UMTS... and all variations of them). Usually LTE strength signal is "70-80dbm / 50-60asu". When I set to WCDMA only or GSM only it is ""100-110dbm / 1-10asu" and that's in the middle of the city (where I live). When I enter some Mall, stairs of building or hike on local mountains, when I want to make a call, the result is "CELLULAR NETWORK NOT AVAILABLE " :crying:
Does it can be antenna problem? But then, why 4G signal is far better than 3G? Does it have separate antennas??? I got no idea really what should be the problem about that
VkriLAB said:
Yes, in my country VoLTE is not available, but I don't see that as an insufficiency, I use it only for data/internet 4G.
MIUI signal bars should "work" same for both 4G and 3G/2G, i think it is some other problem. Btw use it code *#*#4636#*#* (testing mode) and there i can manually set my network (WCDMA only, GSM only, LTE only, CDMA, TD-SCDMA/UMTS... and all variations of them). Usually LTE strength signal is "70-80dbm / 50-60asu". When I set to WCDMA only or GSM only it is ""100-110dbm / 1-10asu" and that's in the middle of the city (where I live). When I enter some Mall, stairs of building or hike on local mountains, when I want to make a call, the result is "CELLULAR NETWORK NOT AVAILABLE " :crying:
Does it can be antenna problem? But then, why 4G signal is far better than 3G? Does it have separate antennas??? I got no idea really what should be the problem about that
Click to expand...
Click to collapse
Without VoLTE you cannot make a call on 4G network. The SIM will automatically switch to 3G/2G. It's the same across all phones, all carriers, and in any country.
noob.gamer said:
Without VoLTE you cannot make a call on 4G network. The SIM will automatically switch to 3G/2G. It's the same across all phones, all carriers, and in any country.
Click to expand...
Click to collapse
It is OK that. I know that. In fact, I GOT PROBLEM WITH 3G AND 2G SIGNAL STRENGTH. I mention 4G just to compare signals. I got 5 bars on 4G and 1-2 bars on 3G/2G on the same location. I have super fast internet thru 4G (50-100mbps), while when I set manually to 3G it didn't even connect data, furthermore, I cannot make a call (Cellular network not available). Obviously it is a strange problem. I'm not arguing about VoLTE or 4G...
Is it the same antenna for 2G, 3G and 4G signal? Should I replace it? I will repeat myself again, I can't get HOW CAN 4G signal be better than 3G/2G?!
I insert both SIM cards (with POCO F1 I use dual sim cards) to other phones (Xiaomi Mi4c, Alcatel Pixi 4, Lenovo A536...) and everything is OK with all of them. So, that means it is a POCO F1 problem.
VkriLAB said:
It is OK that. I know that. In fact, I GOT PROBLEM WITH 3G AND 2G SIGNAL STRENGTH. I mention 4G just to compare signals. I got 5 bars on 4G and 1-2 bars on 3G/2G on the same location. I have super fast internet thru 4G (50-100mbps), while when I set manually to 3G it didn't even connect data, furthermore, I cannot make a call (Cellular network not available). Obviously it is a strange problem. I'm not arguing about VoLTE or 4G...
Is it the same antenna for 2G, 3G and 4G signal? Should I replace it? I will repeat myself again, I can't get HOW CAN 4G signal be better than 3G/2G?!
I insert both SIM cards (with POCO F1 I use dual sim cards) to other phones (Xiaomi Mi4c, Alcatel Pixi 4, Lenovo A536...) and everything is OK with all of them. So, that means it is a POCO F1 problem.
Click to expand...
Click to collapse
Try changing slots. Or try a different carrier. The culprit could be your network provider. If the problem still persists go to any service center and get it checked. BTW it is actually strange to see that 3g/2g network is weaker than 4g. Usually it is the other way around.

Sprint/T-Mobile LgV60

Is anyone else whos on sprint/TMobile having issues where the phone cant decide wether to connect to a sprint or TMobile tower? When im at my home i have a very weak TMobile 600mhz signal and a strong sprint band 41 signal due to the magic box. I also can pick up the band 25 signal the box uses and my phone refuses to just use the stronger faster sprint signal. It absolutely insists on using the TMobile signal. Is anyone having similar issues? Even on wifi its causing network interruptions so i have to reload a page several times to make it use the wifi.
jwarrior319 said:
Is anyone else whos on sprint/TMobile having issues where the phone cant decide wether to connect to a sprint or TMobile tower? When im at my home i have a very weak TMobile 600mhz signal and a strong sprint band 41 signal due to the magic box. I also can pick up the band 25 signal the box uses and my phone refuses to just use the stronger faster sprint signal. It absolutely insists on using the TMobile signal. Is anyone having similar issues? Even on wifi its causing network interruptions so i have to reload a page several times to make it use the wifi.
Click to expand...
Click to collapse
Mine jumps a lot but never connects to the magic box. I don't think it's enabled for B41? I have a Pixel 3XL that I activate (and deactivate my V60) when I'm at my camper which is where my MB lives.
henderjr said:
Mine jumps a lot but never connects to the magic box. I don't think it's enabled for B41? I have a Pixel 3XL that I activate (and deactivate my V60) when I'm at my camper which is where my MB lives.
Click to expand...
Click to collapse
Mine works with Band 41. Its a big one in the nearby city. It works with all sprint and TMobile bands. Its just prioritizing TMobile bands over sprint ones regardless of signal quality
Sent from my LM-V600 using XDA Labs
jwarrior319 said:
Is anyone else whos on sprint/TMobile having issues where the phone cant decide wether to connect to a sprint or TMobile tower? When im at my home i have a very weak TMobile 600mhz signal and a strong sprint band 41 signal due to the magic box. I also can pick up the band 25 signal the box uses and my phone refuses to just use the stronger faster sprint signal. It absolutely insists on using the TMobile signal. Is anyone having similar issues? Even on wifi its causing network interruptions so i have to reload a page several times to make it use the wifi.
Click to expand...
Click to collapse
I have no idea of this is related but.. I'm on T-Mobile, with T-Mobile home internet as well, and for the last several days my phone is having issues connecting and the home WiFi is doing the same thing. I'm in a rural area so my signal is weak, but it's been fluctuating WILDLY since the merger and sometimes it does seem like my phone is struggling trying to decide what to connect to. There's definitely something going on with the network at least in my area for the last 2 weeks for sure
Ryano89 said:
I have no idea of this is related but.. I'm on T-Mobile, with T-Mobile home internet as well, and for the last several days my phone is having issues connecting and the home WiFi is doing the same thing. I'm in a rural area so my signal is weak, but it's been fluctuating WILDLY since the merger and sometimes it does seem like my phone is struggling trying to decide what to connect to. There's definitely something going on with the network at least in my area for the last 2 weeks for sure
Click to expand...
Click to collapse
Sounds like this will be happening until the transition is done/5G is more widespread. These are TMobile models. When mine was first turned on at the store it had the T-Mobile splash screen. The ability to access sprint towers was added via software update post merger. I figure once the 600mhz band is fully rolled out the issue will go away as a result of the signal being strong enough.
Sent from my LM-V600 using XDA Labs

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