Network not registered problem - Samsung Galaxy S7 Edge Questions and Answers

Hi to all!
I have an SM-G935FD Galaxy S7 edge phone from Malaysia. I have it in Greece and as soon as I got it in my hands I let it go all the updates until Android 8. Since then I can't make or receive any calls and sometimes it recognize my sim card (Cosmote) and sometimes it doesn't. Even the times that recognize my network operator I still can't make or receive calls. And of course I don't have any data.
What I have done:
1. Flashed original Malaysian and Indonesian firmware with no luck
2. Activated and deactivated volte
3. Tried different sim card
4. Flashed original Greek firmware (which I thought it would solve my problem but nothing). At root files it has all the network operators enebled as normal.
5. Tried several custom ROMs from Android 7 to 10. The only one that had some result was Floyd 10. The result was that for a minute I had data and couple of sms came from missed calls. But then again nothing. And since the first time I installed it, when I reinstalled Floyd not even for a minute.
6. Tampered customer.xml file for csc folder as a friend from Floyd rom thread suggested but still nothing
7. With a different sim from different provider I have data almost all the time but no calls at all
I'm officially out of options except that it is a hardware problem.
Any help would be greatly appreciated...

Related

[Q] Voice: out of service. S5-G900F

someone save me please... I've been struggle for two weeks...
I'm using S5-G900F, its a Hongkong version, and I'm currently in UK with giffgaff. last month I tried few new rom and then I can't use voice service any more. However I still have internet. Some detail below:
APN
1. I 100% sure its not an APN problem
IMEI
1. IMEI seems ok, start 4 digit 3524****
SIM card related
1. At first I assume it's a SIM card related problem, I tried 2 SIM with different ISP, neither work.
2. Also, I put those 2 SIM on my iphone4 to verify that the SIM is good, and both card work.
3. I also checked the SIM card cable, I put one piece of paper above the SIM to tight the contact, still doesn't work.
Phone related
1. Before I brought the phone, I had check the bands it supports, and it is capable to used here. And the phone work perfect (well, with stock firmware its really slow) before everything happen.
2. Since I brought this phone in HK and now I'm in UK, I tried to flash both latest UK and HK firmware (lollipop), neither work.
3. I also tried only flash baseband from that two firmware plus one old-version baseband. none work.
4. For those flash mentioned above, I do full wipe.
Rom
The rom I tried list below (in time sequence)
1. XtreStoLite (the BL/baseband is extract from Brazil stock firmware. After that problem occur, but I didn't realize)
2. CM12 (this two are all from this forum)
3. TGY-G900FZHU1BOA1-20150120092320 (HK stock firmware, 5.0. Try to recovery the voice)
4. BTU-G900FXXU1BOB7-20150223084756 (UK stock firmware, 5.0. Still trying)
5. Also 2 baseband/BL from XtreStoLite thread (Another is an old-version. Still).
So now for everyday, I had to carry two phone... one just to make sure I don miss any call.... I have tried and still no clue... really need some help here.... Help please...
Tian02 said:
someone save me please... I've been struggle for two weeks...
I'm using S5-G900F, its a Hongkong version, and I'm currently in UK with giffgaff. last month I tried few new rom and then I can't use voice service any more. However I still have internet. Some detail below:
APN
1. I 100% sure its not an APN problem
IMEI
1. IMEI seems ok, start 4 digit 3524****
SIM card related
1. At first I assume it's a SIM card related problem, I tried 2 SIM with different ISP, neither work.
2. Also, I put those 2 SIM on my iphone4 to verify that the SIM is good, and both card work.
3. I also checked the SIM card cable, I put one piece of paper above the SIM to tight the contact, still doesn't work.
Phone related
1. Before I brought the phone, I had check the bands it supports, and it is capable to used here. And the phone work perfect (well, with stock firmware its really slow) before everything happen.
2. Since I brought this phone in HK and now I'm in UK, I tried to flash both latest UK and HK firmware (lollipop), neither work.
3. I also tried only flash baseband from that two firmware plus one old-version baseband. none work.
4. For those flash mentioned above, I do full wipe.
Rom
The rom I tried list below (in time sequence)
1. XtreStoLite (the BL/baseband is extract from Brazil stock firmware. After that problem occur, but I didn't realize)
2. CM12 (this two are all from this forum)
3. TGY-G900FZHU1BOA1-20150120092320 (HK stock firmware, 5.0. Try to recovery the voice)
4. BTU-G900FXXU1BOB7-20150223084756 (UK stock firmware, 5.0. Still trying)
5. Also 2 baseband/BL from XtreStoLite thread (Another is an old-version. Still).
So now for everyday, I had to carry two phone... one just to make sure I don miss any call.... I have tried and still no clue... really need some help here.... Help please...
Click to expand...
Click to collapse
Can anyone help me please....
Was the phone service working for you before you tried a new ROM?
I have the same issue. Can't make or recieve calls. Internet is working though.
When you try to call someone, do you get 'call ended' message almost immediately after dialing out?
Also, when you go to phone / settings / additional settings (or more settings) - does the 'network or sim card error' pop up?
Can't figure this out... Hopefully someone would be able to point us to right direction, other than to replace it
And of course I did a factory reset, new roms, modems, everything there is to try. nothing helped
could it be because of Region Locking? Maybe it's locked again after flashing?. I want to buy this phone but I am not sure if it will get region locked again after it gets updated or custom flashed.
Kamco said:
Was the phone service working for you before you tried a new ROM?
I have the same issue. Can't make or recieve calls. Internet is working though.
When you try to call someone, do you get 'call ended' message almost immediately after dialing out?
Also, when you go to phone / settings / additional settings (or more settings) - does the 'network or sim card error' pop up?
Can't figure this out... Hopefully someone would be able to point us to right direction, other than to replace it
And of course I did a factory reset, new roms, modems, everything there is to try. nothing helped
Click to expand...
Click to collapse
Yes, before I flash those ROM everything goes well. I'm currently using CM12 so I don't have the setting you mention. But anyway I never seen that pop message before. I guess the SIM card work good as the phone can connect to the internet (not wifi, cellular internet).

SM-N916S Roaming

Hi Guys,
I have this annoying problem and I'll ll be glad if someone can help me.
I have the Korean Samsung Galaxy Note 4 SM-N916S, Rooted android version 5.1.1
I live in the Philippine and I'm using local SIM Card. I can make out/in phone calls.
The problems are:
1. Many times I get the message "network not register" restart the phone fix the problem, sometime I need to restart the phone twice
2. when I switch on the phone I get warning message "Data mobile off/on"
3. Can't send SMS to UK
4. The Sim Tool Kit can run and I need to use some substitute app, which not work so well
After I dig deep the Internet I got to understand the problem came because the phone is Korean version and It will fix only by Change the CSC Code from 'KOR' to International version
no matter what I did I can't change it to any other CSC code, from the error messages I understand to change the CSC Code I should have Multi CSC firmware, which I don't have.
I will appreciate any help
hi
i have same problem whit my note 4 sm-n916s.
its worked well, but after 6 mounts i can' t to call or to get incoming
only this problem, every things working well.
do u fix it

No service, emergency calls only after upgrading to android 6.0.1 by OTA

Hi! I have an A5 (SM-A500FU) bought in Italy last year, Im using it since then in Argentina. With android lollipop I have never had issues with lost signal, no service messages or network not available. But since upgrading by OTA to Marshmallow these problems started. I have looked everywhere but I cant find anything that helps me. Also my service problems are not always present, sometimes I do have signal, but mostly when im out in the street. At home, for example I have no service and "only emergency calls" message. I'm using right now and old Moto XT316 with the same SIM card ( Claro AR) im using in the A5, and it is working fine, recieving network signal ( it is also a new sim card, just in case old SIM was the problem). The thing is I can´t use my A5 because it is constantly losing signal.
Thing I have already tried and didn't work:
- Changing to aireplan mode for a few minutes
-take out SIM card, restart the phone, turn off phone, put sim back in again, turn on phone
-verifiyng the APN for my network Claro Ar was correct, manually searching networks ( At home for example, it only finds Personal and Movistar (sometimes) but never finds Claro ar)
-Doing factory reset
-Reinstalling official firmware (PDA version : A500FUXXS1CPH2; CSC version : A500FUVFR1CPG2) with kies3 ( smart switch gave me an error)
-Flashing the UK BTU ROM ( the old one was from Vodafone Italy, now Phone info app says my mobile operator is 72234, while befor was 722310 which is correspondig with claro ar, what does this mean)
what could be causing this problem???? Im really starting to desperate now...
I read something interesting online, searching for some answers I got to the experience of some guy who had a very similar problem. Short story, his had to change his phone's network configuration in the "radioinfo" menu (or whatever the name of that hidden menu is) with an app named Network and force his cellphone to use only 3g or 2g. Turns out that his phone was trying to use LTE but LTE was not available in his region. This solved his problem. Mi phone can't use LTE here in Argentina because it is Italian, and since I have it it never conected to LTE network (I guess we use different frequencies) So I was thinking maybe my phone is also trying to use LTE but since it won't reach 4g signal ends up with no signal at all, excatly like this guy's phone.
But, apparently I need root access to get to this menu or even use this apps, is that correct?
So, should I root my phone to try that? does that story make any sense to you? Any advice?
Downgrade to lollipop I read is not my best option, also rooting it isn´t , but I'm starting to run out of solutions.
I add this information that could be helpfull:
Product Code : SM-A500FZKUBTU
Original CSC code : BTU
Active CSC code : BTU
PDA version : A500FUXXU1CPH3
CSC version : A500FUBTU1CPH1
Baseband version :A500FUXXU1CPH3
Android version : 6.0.1
Build number: MMB29.A500FUXXU1CPH3
Mobile operator :72234
Also IMEI number seems to be fine, it starts with 35 and matches the one in the back of the phone.
Sorry It is such a long thread!! Thank you very much!!

S7 Edge (SM-G935F Exynos) Carrier Flash ROM Question

Hey guys, i was wondering if i can flash firmware from other carrier without bricking?
I bought my phone last year locked to carrier, and I unlocked it using doctorSIM service. Phone itself works fine, and as I'm not living in country that i bought my phone from originally, phone gives a message "No SIM card installed" sometimes once a week, sometimes several times a day and i need to remove SIM card or to restart phone to make SIM card work again.
Please note:
- SIM Card from my original carrier (from one that I bought my phone from) works PERFECTLY fine
- My other SIM card (that my phone constantly rejects) works in other phones just fine
- I have tried to reset the phone, and carrier bloatware constantly keeps installing
- EDIT: Wi-Fi and 4G are working PERFECTLY fine
What to do? Any ideas?
Thanks in advance and sorry for gramar mistakes
Bump, flashed other carrier firmware, still same problem.
R u rooted? Have you considered flashing a CSC packet for your location?
I have a 930S, and works fine with the Korean ROM/Chinese language here in the US, on ATT service.
I have flashed the ATT, XAA and TMB CSC sets, and though the phone worked, and loaded the correct USA carrier info, I lost the phone code ability, which I could not solve.
In the end I went back to the original Korean ROM and it's CSC packet. Interestingly, though it works perfectly here in the U.S., and I can use/input phone codes, it still shows Chinese cities for my 'Region", none of which I have selected. When I do a search for local towers, it locates and correctly identifies AT&T, T-Mobile, etc. I select ATT. The Chinese cities remain in the region selection, none selected.
Wait and see if someone knows if CSC (Exynos or US based CPU) are interchangeable. I used CSC packets from a universal ROM setup (non-USA).
JeffDC said:
R u rooted? Have you considered flashing a CSC packet for your location?
I have a 930S, and works fine with the Korean ROM/Chinese language here in the US, on ATT service.
I have flashed the ATT, XAA and TMB CSC sets, and though the phone worked, and loaded the correct USA carrier info, I lost the phone code ability, which I could not solve.
In the end I went back to the original Korean ROM and it's CSC packet. Interestingly, though it works perfectly here in the U.S., and I can use/input phone codes, it still shows Chinese cities for my 'Region", none of which I have selected. When I do a search for local towers, it locates and correctly identifies AT&T, T-Mobile, etc. I select ATT. The Chinese cities remain in the region selection, none selected.
Wait and see if someone knows if CSC (Exynos or US based CPU) are interchangeable. I used CSC packets from a universal ROM setup (non-USA).
Click to expand...
Click to collapse
I'm not rooted, as I use Samsung Pay and have more than one year of warranty left. I will try flashing CSC of the current country I'm in (Austria). Thanks for taking time and writing all this, this problem is unbearable
Hello!
My s7 edge is in trouble, it freezes sometimes, and sometimes it gets a full screen of pixel color flaws, with that problem my root smartphone works two weeks. Sometimes this error occurs in the ROM installation process, I insist on the installation until I can. I tried to install superman rom and due to this problem, the smartphone in the screen of death "exception of bootloader" (But it's already been resolved)...
When searching the internet, I saw that this could have a problem in flash memory.
After all history, I ask;
I could use a twrp file system repair function to try to solve this problem? And how to proceed?
(sorry for the use of google translate)
sekrilhus said:
Hello!
My s7 edge is in trouble, it freezes sometimes, and sometimes it gets a full screen of pixel color flaws, with that problem my root smartphone works two weeks. Sometimes this error occurs in the ROM installation process, I insist on the installation until I can. I tried to install superman rom and due to this problem, the smartphone in the screen of death "exception of bootloader" (But it's already been resolved)...
When searching the internet, I saw that this could have a problem in flash memory.
After all history, I ask;
I could use a twrp file system repair function to try to solve this problem? And how to proceed?
(sorry for the use of google translate)
Click to expand...
Click to collapse
I am, by far, not educated up on TWRP, so I'm not sure what you mean by "repair", other than making sure your data partition is formatted so it does not cause the issues you are talking about.
Here is an interesting read:
https://forum.xda-developers.com/go...o-repairing-corrupted-data-partition-t2577447
Hey guys, update on the problem, i replaced sim card and it works just fine, i will post updates as time goes on
Thanks for the help!

SIMCARD NOT DETECTED (Modem Not installed)

I was install some custom rom on my S7 Edge Device (SM-G935FD), and after that, my simcard is not available. I tried to install another rom and do flash again and again, and my simcard not detected until now. Please HELP
This will always occur if you try to install any samsung that has the BLCP version but older than the bootloader you had before installing the rom. To solve this you will have to install via odin the latest version of stock for your device.
Dark Stranger said:
This will always occur if you try to install any samsung that has the BLCP version but older than the bootloader you had before installing the rom. To solve this you will have to install via odin the latest version of stock for your device.
Click to expand...
Click to collapse
i had the same problem but flashing the latest firmware didnt solve it for me.
here is the whole story. Any ideas would be appreciated
I have an SM-G935FD Galaxy S7 edge phone from Malaysia. I have it in Greece and as soon as I got it in my hands I let it go all the updates until Android 8. Since then I can't make or receive any calls and sometimes it recognize my sim card (Cosmote) and sometimes it doesn't. Even the times that recognize my network operator I still can't make or receive calls. And of course I don't have any data.
What I have done:
1. Flashed original Malaysian and Indonesian firmware with no luck
2. Activated and deactivated volte
3. Tried different sim card
4. Flashed original Greek firmware (which I thought it would solve my problem but nothing). At root files it has all the network operators enebled as normal.
5. Tried several custom ROMs from Android 7 to 10. The only one that had some result was Floyd 10. The result was that for a minute I had data and couple of sms came from missed calls. But then again nothing. And since the first time I installed it, when I reinstalled Floyd not even for a minute.
6. Tampered customer.xml file for csc folder as a friend from Floyd rom thread suggested but still nothing
7. With a different sim from different provider I have data almost all the time but no calls at all

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