network csc required ? - Samsung Galaxy S7 Edge Questions and Answers

hi, im getting a lot of missed calls and texts mainly while im home yet other family members on the same network dont have a problem
i flashed my phone with SuperMan-Rom V2.4.1 but think i only flashed a generic csc as i couldn't see one that seemed to fit my network
im on Virgin UK
any help would be appreciated

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[Q] Bad Network On Android Phones

Hi guys and girls,
Today, i'm writing my first post on this wonderfull forum. I have a problem.
I have very bad network sensivity on every Android phone i have. I'm kinda new to android but i know at least a minimum.
The questions:
If i buy a phone in a country and then take it to another country, can it lead to bad network?
Can the baseband version of a phone be good in one country and bad in another?
Are the OTA updates specific to a country (scandinavian android updated in a non scandinavian country) or are they different from a country to another?
The actual situation:
I live in Belgium but i'm norwegian and i'm used to Norwegian keyboards with Æ, Ø, Å characters) so I have bought my a SE Xperia X10 Mini Pro in Norway, but i think after i did the 2.1 update in Belgium i got bad network. Now i got a HTC Desire Z also bought in Norway and had perfect network in norway, i updated to the 1.72 still in norway and still had perfect network. Then i came back in belgium and had bad network. Then i updated to 1.82 and then to 2.42 (the gingerbread version 2.3.3) and i still have thebad network problems in Belgium. The rom is still the scandinavian/nordic and i was wondering if there is a different baseband version in the ota update from norway and the one from belgium eventhough its still the scandinavian sense rom.
If this is the answer to my problem.
Since i'm on a gingerbread Desire Z, how can i change the baseband version?
I guess i'll have to root, Is there a easy way to root a GB DZ?
Info:
Android: 2.3.3
Baseband version 12.56.60.25U_26.10.04.03_m
Kernel: 2.6.35.10-g7b95729
Software number 2.42.405.2
If you need more info or anything, just ask me. I really want to solve my problem and help others maybe find an answer to theirs.
Thanks in advance,
Bendik
Anybody? Please?
I really need help on this one.
define "bad network" are you sure the carriers in each country use the same bands? Radio loads and RILs will make all the difference. Have you tried locking to 2G?
Well, by saying bad network i mean i have between 0 and 3 bars most of the time. Even with nice weather.
I have no idea if my countries carriers use the same bands. But what i discovered was that if i use my norwegian sim card in belgium (roaming or something) and i use Mobistar (another network carrier) then i have 4 bars allways. I couldn't try to roam on base (my actual carrier) or proximus (wich is the lands monopol carrier).
The thing about radio loads and RIL's i didnt understand anything.
And locking in 2G doesn't change anything.
There are three carriers in belgium: Base (my actual carrier), mobistar, and Proximus (the countrys main carrier)
I ordered free SIM cards from the other belgian carriers.
I got one from mobistar and it worked perfectly.
I haven't tried proximus yet.
Base is the one i have problems with.
So no i have another question: Is there any differences between sim cards from one carrier to another one? Except that they dont allow me to connect to other carriers than the card carrier?
I know i may be spamming a little bit but this is kinda important to me.
So please, if anyone could give answers or help me i would be thankfull.
I think that not all carriers have the same signal strength in a specific location .
In my country there is three mobile networks and in my home they are not equal in signal strength .
one with zero signal , the second with moderate signal and the last one with perfect signal even though they are equal in the street which is 10 meters away from home !!!
You said that mobistar works perfectly so maybe you should stick with them and ignore the one you use right now .
Thanks for answering me.
I really liked base because i had so really cheap bills. Instead of paying 25€ for free texts and ringing and some internet im paying 10€ with my actual one.
I mailed base in case they could help me, and after about 2 weeks i finally got an answer. Theyre working on it...
Maybe it is the 3g band. Look, here in my city, if I use 2g, it works OK but in some areas i have no signal. If I turn on the 3G, I have a very good signal in almost every corner of the city. Verifiy that.
Hello,
-The easiest way might be to contact your actual operator, they should check the 2G/3G coverage in your area. But i guess you can do this yourself, somewhere on their website they should have a map with their signal strenght.
-Change your mobile phone; try the sim card in a different phone. Does it get the same signal strenght? - With this you will determine if the problem is in your mobile phone. If you get better signal in a different phone, you may have a broken anthena in your device or you've messed up something in the settings.
-Ask someone around you with your carrier what strenght does he get. If it is higher than yours and you got the same strenght in more than one phone you may have a wrong sim card. The carrier should change it for you.
Check this and let me know the result I'll try to help.
bendik18 said:
Thanks for answering me.
I really liked base because i had so really cheap bills. Instead of paying 25€ for free texts and ringing and some internet im paying 10€ with my actual one.
I mailed base in case they could help me, and after about 2 weeks i finally got an answer. Theyre working on it...
Click to expand...
Click to collapse
I am very interested to find out what Base does as I am in a similar situation to you though I bought my Xperia 10 mini pro here in Belgium.
When I use my Base sim card I have problems with the signal on either of the tree network settings.
When I use my Slovenian one, I don't have any problems roaming on Base, Mobistar or Proximus.
I always get a good signal when I use my Base card in a different phone though.
Sounds like the frequency for me! Check the frequency of the 3G band for your 3 operators and then check if your cell phones can handle that.
I saw that Mobistar (/the only carrier i get good network on has another band if i understood right)
Im still contacting my actual operator about the issue and they will need another 2 weeks before they can answer me... Of course...
SIM Card in another phone, in a 2G phone SE k550 i have full network. When i lock to 2G on my Android phone, it still has sucky network.
I have a friend (OMG) on the same carrier i had network problems with. he has allways full network, i'll try to see if i can make him come over and test the network with his android phone (acer liquid metal or something)
Ok, let us know how that goes
yes,you may lead to bad network.but the chances are little
Are you on 3g only?
In belgium, Proximus and Mobistar have the best networks.
Base has 97%coverage of edge, but their 3g network sucks.
Are you certain that its everywhere in belgium that base has a bad reception?
I contacted my operator, they told me to try to lock to 2G, i tried it for an hour and still no succes. I restarted my phone after i locked to 2G juste to be sure. Still no success.
I've allready tried in another phone, in my old SE k550 i have full network allmost all the time. I've had the same problem in my x10 mini pro even after a fresh original reset. I really dont think its the phone since i have perfect network when i'm on Mobistar (another carrier that is expensive).
I have a friend that has an Acer Liquid Metal (?) and i'll try to make him come over to test his network.
I have allready changed sim card but they made me pay 10€ for that... --'
Now i'm waiting about a week for another answer from my carrier.
I hope they can do something.
I have bad network everywhere except in the subway (underground :O )
I have this bad network with Proximus and BASE.
I'm was in auto HDSPA/GSM and than tried the 2G only, and now back to auto.
When i'm in auto, i think i noticed that in the moments i have Edge i tend to get better network. But when i lock to edge/2G i still have bad network...
I tried again to lock 2G and it works with full network. Still contacting the operator.
From a quick search of the internet it appears all the providers listed use the same frequencies, 2100 for 3G & 900,1800 for 2G.
As well as selecting 2G only I would also select the mobile operator manually, instead of automatically which I believe is the default. It is also a possibility that the Android phones sold locally have a different radio version then yours that works better on the Base network, I've run into this in the past with Windows Mobile on HTC phones.

GT-i9505 suddenly I can't connect to networks. I get full reception tho.

Hey. I just got a Galaxy S4 three weeks ago, last week I rooted and this week I cannot connect to network at all. I get full reception but I can only call emergency calls? Anyone knows why this happened?
karzan10 said:
Hey. I just got a Galaxy S4 three weeks ago, last week I rooted and this week I cannot connect to network at all. I get full reception but I can only call emergency calls? Anyone knows why this happened?
Click to expand...
Click to collapse
Are u in uk?
If yes what network?
cameracartwright said:
Are u in uk?
If yes what network?
Click to expand...
Click to collapse
Sweden. Tele2.
I have the same problem. Although I have meteor Ireland previously phone was branded to o2. The phone has latest update BTU region with locked bootloader. Phone was working fine until one day when I got up to find no service on it. Only can connect to internet 3g h e but cant call or text anyone. Tried to flash the modem but that didnot work so then I flashed all firmware but still no joy. Please help.
mopas001 said:
I have the same problem. Although I have meteor Ireland previously phone was branded to o2. The phone has latest update BTU region with locked bootloader. Phone was working fine until one day when I got up to find no service on it. Only can connect to internet 3g h e but cant call or text anyone. Tried to flash the modem but that didnot work so then I flashed all firmware but still no joy. Please help.
Click to expand...
Click to collapse
Do you have a carrier symbol that shows the phone is connected to the network. Maybe you need a new sim card?
im in the sameboat.. i live in finland. really would like to fix this

my g900f recognises my network but won't connect to it

this g900f was bought through orange (my old carrier) ran on touchwiz lolipop edition with some crappy apps from orange that i could not delete (android 5).
then i move to another carrier named hot mobile (a well known mobile carrier in my country) but for some reason my g900f wasn't able to connect to the network, i was able to do everything else, except making and receiving calls..
so i root and installed twrp and then flashed cm13&gapps but still i'm unable to make and receive calls.
right now on the lockscreen it says "Hot Mobile (my new carrier) - Emergency calls only"...
when i'm searching for networks it only shows me orange and others, but there is no hot mobile (the one i need) there...
do you think this g900f is simlocked ?
and i know for sure this phone supports this carrier cause my father has the same one, and its working for him.
do u have any idea on how to fix it ?!
bw since i rooted this guy calling orange for help is not an option...
please help ?!
Maybe this app can shed some light on your sim lock status. https://play.google.com/store/apps/details?id=com.spocky.galaxsimunlock but it's most likely your phone is locked to orange. I've used phones in the past which were sim locked and they show the new carrier but only give emergency coverage. Here in the UK orange lock there phones to the network. Not sure why rooting would stop you contacting orange but usually you would need to contact orange BEFORE changing carriers to unlock device. Maybe that app can help unlock too? Not sure though...

Can only connect to LTE and cannot make calls

I have a weird problem with a new SM-G935F (Exynos), which I'm trying to use in Serbia (Telenor), while it's branded for TIM Italy carrier. The device connects to LTE network instantly, but I'm unable to make calls, and messages are received only intermittently - data works properly all the time. When I try to connect to 2G or 3G only, phone cannot register to network at all. I tried flashing multiple modems both for 6.0.1 and 7.0 and tried multiple stock ROMs, after, of course, trying everything with a pristine initial setup...I tested the SIM card in another phone and it works normally. I can't test another nano SIM card with the phone at the moment...Can it be something with the CSC, since that is the only part that I didn't touch? Or is it most likely a hardware problem?
Thank you very much!
I have same problem on a 935f! Up
Sprov said:
I have same problem on a 935f! Up
Click to expand...
Click to collapse
Hi Sprov,
I see you're from Italy - is your phone also bought from TIM?
It has everything to do with the csc!!
Telenor might be using VoLTE technology to make voice/video calls. Since Serbia isn't in UK, BTU firmware has its own standards and isn't compatible with your region. Same issue for me here. Reverting back to 6.0.1 will gain me back calls feature. Until an official update is released in your region, you will have to compromise this one feature(well the most important one). If you very much want the feature, the only way right now is to revert back to old firmware(including the csc)
Thanks a lot for the insight! But should that affect ability to connect to network when it's set to 2G/3G only? Since the phone doesn't register at all, only to LTE. Thanks again!
This has even happen to me. I was a beta tester to. Recently I added a carrier for my sim 2 which supports VoLTE. When I flashed BTU official yesterday via OTA there was no VoLTE and finally came to know that BTU CSC doesn't provides VoLTE. Since its an unbranded firmware. Reverted back to my CSC MM. Got back VoLTE also.
Waiting for an INS version of Nougat.
Sent from my SM-G935F using Tapatalk
It turns out that, in my case, very weird, it was due to SIM card...It worked normally on all modes in 2 other phones, but in this phone only LTE as I stated. Once I put in a new SIM card, same carrier and everything, no problem at all.
I understand the problem with calls and VoLTE, but in this case the weirdest was that it connected to LTE at all, while it couldn't register to network on 2G/3G.
protech_v2 said:
Hi Sprov,
I see you're from Italy - is your phone also bought from TIM?
Click to expand...
Click to collapse
I had it for free, a friend who couldn't stand the problem gave me, though he bought it from someone, not store. Imei is ok.
If i switch from h3g to TIM, so using roaming, i have 2g internet and working connection. Weird.
---------- Post added at 10:13 PM ---------- Previous post was at 10:10 PM ----------
protech_v2 said:
Hi Sprov,
I see you're from Italy - is your phone also bought from TIM?
Click to expand...
Click to collapse
Sprov said:
I had it for free, a friend who couldn't stand the problem gave me, though he bought it from someone, not store. Imei is ok.
If i switch from h3g to TIM, so using roaming, i have 2g internet and working connection. Weird.
Click to expand...
Click to collapse
Oh and i have another s7edge which is my main device, i tested also tim sim and wind on both, i have same behavior of 2g/3g/4g. 4g is really unstable too than in my personal s7e. All tested in same condition with live sim switching

3/4G not working

Since we moved from central Africa back to France my wife's note 4 cannot get connected to mobile data...
All was working well - cell phone/3G (only 3G provided) and wifi but now mobile data is no longer working.
Tried her sim card in another phone and 3/4G is working so the sim is ok...checked the internet and it looks like they are using the same frequency bands so if it worked in Central Africa it should also work here in France.
The phone in question is an ex sprint (P model) which got flashed to European standards - its modem is for the European networks.
Should I try to flash another modem and if so which one? I understand that I cannot just flash any modem?
cfds said:
Since we moved from central Africa back to France my wife's note 4 cannot get connected to mobile data...
All was working well - cell phone/3G (only 3G provided) and wifi but now mobile data is no longer working.
Tried her sim card in another phone and 3/4G is working so the sim is ok...checked the internet and it looks like they are using the same frequency bands so if it worked in Central Africa it should also work here in France.
The phone in question is an ex sprint (P model) which got flashed to European standards - its modem is for the European networks.
Should I try to flash another modem and if so which one? I understand that I cannot just flash any modem?
Click to expand...
Click to collapse
Did you checked your APN settings is correct for your network provider ?
Trex888 said:
Did you checked your APN settings is correct for your network provider ?
Click to expand...
Click to collapse
Checked them and found them to be absent...filled them out and now mobile data is working.
I have bought more than a few mobile phones the last couple of years and this is the first time I had to manually enter the APN settings...anyway, glad that it is solved. No need to flash another modem!

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