Hi,
Does anyone know if Multi-CSC codes can be installed on top of a custom rom? My N7105 lost it's function to get Data Service (shows Insert Sim Card when pressing Mobile Networks.) I think the custom rom messed up my CSC when I checked via *#1234#.
I downloaded apps to change CSC but it says my device only has one CSC.
Any help would be appreciated.
I installed the one from this thread:
http://forum.xda-developers.com/showthread.php?t=2031575
it was supposed to change both Modem and CSC.
yet when I check, it only did change the CP code. the CSC is still set to something else which is not for my region.
After I have installed and successfully changed my CSC on my phone, via http://forum.xda-developers.com/showthread.php?t=2208627
it still says No SIM Card under Mobile Networks menu.
HELP PLEASE..
I've looked everywhere and can't find a proper walkthrough/tutorial for my questions
I have a g930w8 S7 canada which is a multi csc phone, i want to change the csc to another carrier that i'm now subscribed to and further they have newer update then old carrier.
So i'm wondering what my best choice is
1. change csc with *#272*IMEI# code, without sim in, let it reset, power off and then clear cache through recovery menu, then put sim in and it's essentially that new carriers phone? And latest firmware/ later otas would be to said new carrier?
2. flash latest new carrier firmware through odin and voila new carrier phone?
Which option is better? 1 is easier but does it change active csc and then when new update downloads does it change firmware csc?
Thanks for your help
Kevotwo said:
I've looked everywhere and can't find a proper walkthrough/tutorial for my questions
I have a g930w8 S7 canada which is a multi csc phone, i want to change the csc to another carrier that i'm now subscribed to and further they have newer update then old carrier.
So i'm wondering what my best choice is
1. change csc with *#272*IMEI# code, without sim in, let it reset, power off and then clear cache through recovery menu, then put sim in and it's essentially that new carriers phone? And latest firmware/ later otas would be to said new carrier?
2. flash latest new carrier firmware through odin and voila new carrier phone?
Which option is better? 1 is easier but does it change active csc and then when new update downloads does it change firmware csc?
Thanks for your help
Click to expand...
Click to collapse
Hi mate
assuming you are not root
option 1 is good but is not working anymore in most phones , once you change your CSC it stay active until you flash a different firmware with different CSC
option 2 maybe your only option , all canadian firmwares i see they seem to be single CSC , which one are you looking for? if so just flash it ( use CSC file , not home_csc) and you are done......backup csc change will factory reset your phone
My wife works in a hospital and we used wifi calling because reception was poor.
It's still poor with Tmobile but no wifi calling. When we moved from At&t the wifi
option was greyed out. Tmobile states that it works fine on their network.
Is there any way to get a samsung s7 g930a and a samsung j7-j727a to use wifi calling
on the Tmobile network?
I'm sure it will probably involve something over my pay grade but I am willing to try
anything needed to get this feature to work
JohnAtlas said:
My wife works in a hospital and we used wifi calling because reception was poor.
It's still poor with Tmobile but no wifi calling. When we moved from At&t the wifi
option was greyed out. Tmobile states that it works fine on their network.
Is there any way to get a samsung s7 g930a and a samsung j7-j727a to use wifi calling
on the Tmobile network?
I'm sure it will probably involve something over my pay grade but I am willing to try
anything needed to get this feature to work
Click to expand...
Click to collapse
If your current firmware has WiFi calling (Volte) You can only use Volte if the network supports it. There are however many apps you can use for WiFi calling look on the play store.
Not sure what volte is, I have had some other issues with the
service that I thought might be resolved by installing a
different rom
Tell me if i'm wrong
Thanks
JohnAtlas said:
Not sure what volte is, I have had some other issues with the
service that I thought might be resolved by installing a
different rom
Tell me if i'm wrong
Thanks
Click to expand...
Click to collapse
Volte is wi fi calling over a network which the network operator supports without the need for a specific app.
Please tell me exactly what you are trying to do
What network are both phones using?
Which networks were the phones on initially?
Have you modified the phones in any way? Root? or TWRP?
What firmware are both phones currently using? Go to Settings>about phone>software information>baseband version G930A????
Sorry for not getting back sooner
Both phones are currently on Tmobile network
Both phones were originally on At&t network
No modification
Samsung s7 g930a baseband version G930AUCS8CRL1
Samsung j7-j727a baseband version J727AUCS4BRL1
Note: Wifi calling was available on original at&t network but is now greyed out on tmobile network
JohnAtlas said:
Sorry for not getting back sooner
Both phones are currently on Tmobile network
Both phones were originally on At&t network
No modification
Samsung s7 g930a baseband version G930AUCS8CRL1
Samsung j7-j727a baseband version J727AUCS4BRL1
Note: Wifi calling was available on original at&t network but is now greyed out on tmobile network
Click to expand...
Click to collapse
Ok since wi fi calling is network specific (some have it some don't) you either need to have unbranded firmware on your phone so it works no matter which network is providing it, or you need to now flash T Mobile firmware for it to work again on your phone.
US networks are a nightmare when it comes to this sort of thing and it's a right pain in the a** to solve it. So what you need to search for now on here is how to flash different firmware on AT&T S7. You should always try to flash unbranded firmware so everything works easily, if not it will have to be T Mobile Oreo.
cooltt said:
Ok since wi fi calling is network specific (some have it some don't) you either need to have unbranded firmware on your phone so it works no matter which network is providing it, or you need to now flash T Mobile firmware for it to work again on your phone.
US networks are a nightmare when it comes to this sort of thing and it's a right pain in the a** to solve it. So what you need to search for now on here is how to flash different firmware on AT&T S7. You should always try to flash unbranded firmware so everything works easily, if not it will have to be T Mobile Oreo.
Click to expand...
Click to collapse
Ok, If you think unbranded is the best way to go can you point me in the right direction
updato.com and sammobile.com both host firmware and have flash guides. SamFirmTool also is good for downloading firmware, but only lets you download the latest version and isn't as user friendly.
For unbranded you'll want to look for G930U firmware.
For best compatibility you flash all 4 files using (AP,BL,CP,CSC) this will wipe the phone clean. Otherwise you can try Home_CSC instead of CSC (So AP, BL, CP, Home_CSC) , which keeps your data but may not fully resolve your issues.
Beanvee7 said:
updato.com and sammobile.com both host firmware and have flash guides. SamFirmTool also is good for downloading firmware, but only lets you download the latest version and isn't as user friendly.
For unbranded you'll want to look for G930U firmware.
For best compatibility you flash all 4 files using (AP,BL,CP,CSC) this will wipe the phone clean. Otherwise you can try Home_CSC instead of CSC (So AP, BL, CP, Home_CSC) , which keeps your data but may not fully resolve your issues.
Click to expand...
Click to collapse
What beanvee has said but I think it's worth mentioning I find Sam Firm tool pretty straight forward to use and you'll always get the firmware in separate parts which can be useful.
I found a link for the G930A here
I'm not really understanding the differences in firmware. How is flashing with this firmware
any different than what's on the phone right now?
I am just trying to get the wifi calling to work, How is flashing it with at&t version firmware going
to help me on the tmobile network.
I guess I don't know what I need, stock, unbranded, official or custom rom.
I checked all sites listed and there is no firmware for the J727a, alternative?
I would rather someone more knowledgeable guess what I need to do, if that is what is
necessary because the phones are no good to me without that feature. Any suggestions
would be appreciated.
Each carrier deploys their own CSC file, which contains carrier specific configurations, and its this file that determines if VoLTE or VoWIFI is enabled and how it connects.
AT&T may have different VoWIFI settings to TMobile, which is why using AT&T firmware it doesn't work. Some carriers outright disable it since they don't offer it.
Your best bet would be G930T firmware https://updato.com/firmware-archive-select-model?q=SM-G930T&rpp=15&order=date&dir=desc&exact=1
However unbranded G930U should also work because the unbranded firmware is meant to work on all cariers. G930A would likely get you no where since it'll be AT&T specific
The phones in the USA are all identical hardware under the hood, the only difference is the carrier branding and firmware.
But that's only for the S7, I'm not familiar with the J7.
And it's not through lack of knowledge @JohnAtlas, US phones are a nightmare to do anything with. There are several options available but it's difficult to explain what to do and how to do if you are not familiar with how the software works.
There are many guides on how to unlock the software on all US networks, and depending on the network can include multiple steps to complete, you just have to search and read.
Ok, I was able to find the latest firmware for the G930 phone
I installed odin and have the files, BL, AP, CP, and CSC or Home CSC
My question is, Do I load all files and then start or do one file at a time in odin
I tried all files the first time and got failed error and dismatch
Thanks
JohnAtlas said:
Ok, I was able to find the latest firmware for the G930 phone
I installed odin and have the files, BL, AP, CP, and CSC or Home CSC
My question is, Do I load all files and then start or do one file at a time in odin
I tried all files the first time and got failed error and dismatch
Thanks
Click to expand...
Click to collapse
All files in correct slots and use this Odin https://forum.xda-developers.com/android/software/patched-odin-3-13-1-t3762572
Put all files in and used patched odin via link
Received fail and screen that said, "An error has occurred while updating the device software"
After reading more, tried to install twrp and received secure check fail : recovery
Rebooted phone and this is the screen right now, not sure what to do next
Thanks
https://drive.google.com/file/d/1QRvaTNb067u49lW1s4UZdRZivK936C2Y/view?usp=sharing
JohnAtlas said:
Put all files in and used patched odin via link
Received fail and screen that said, "An error has occurred while updating the device software"
After reading more, tried to install twrp and received secure check fail : recovery
Rebooted phone and this is the screen right now, not sure what to do next
Thanks
https://drive.google.com/file/d/1QRvaTNb067u49lW1s4UZdRZivK936C2Y/view?usp=sharing
Click to expand...
Click to collapse
That is the system recovery and when you flash with Odin you need to put your phone in download mode first press volume down+home+power. The phone should not go to that screen you have posted either before or after Odin, its a completely different recovery mode.
Get your firmware from updato. Com or sammobile
G930U, filter by USA and choose the latest XAA or USC and use the modified version of Odin. We know this works because thousands of people have used it to do what you are trying to do.
Thanks for info, I used G930U TMK version since we are on Tmobile carrier
It seems to be working fine and wifi calling is available
There is no TMK version for the J727U but will try the XAA for the other phone
The way I understand it is that the U means unlocked and the XAA is generic and not carrier specific
Please advise if I'm not on the right track
Thanks for your help
JohnAtlas said:
Thanks for info, I used G930U TMK version since we are on Tmobile carrier
It seems to be working fine and wifi calling is available
There is no TMK version for the J727U but will try the XAA for the other phone
The way I understand it is that the U means unlocked and the XAA is generic and not carrier specific
Please advise if I'm not on the right track
Thanks for your help
Click to expand...
Click to collapse
That's brilliant , glad your up and running.
So the letter "U"after the "G930" denotes the region of the world the device is build to operate in, the Americas just happens to be U. The unbranded firmware is the one that has a region but no network assigned to it, so a 3 letter code is used instead, in your case its USC, or XAA.
Europe is G930"F" or "FD" and the 3 letter code for unbranded is BTU & XEA.
Anyway if your phone is running great on T Mobile then don't update it anymore, turn auto update off. The advantage of keeping it T Mobile is you have the wifi calling, the unbranded firmware needs more fiddling around with the get the wifi calling working on the network your using, so best to stick with what works.
I will have a look for firmware for the J7 you have to see if i can recommend doing something with it to get the wifi calling working.
*update*
So it seems the J727 is the same as the J7 in terms of the internal components, everything is the same in both models so that's great news. I think the "27" bit is just a marketing thing.
In theory you should be able to flash the latest T Mobile Oreo to your device from this link https://www.sammobile.com/firmwares/galaxy-j7-pop/SM-J727T/TMB/download/J727TUVS4BRK1/249137/
Now before we start please check / do the following to avoid further problems.
1. Save everything you need from the phone to your pc.
2. Check that you have OEM unlocked in "developer settings" and "USB debug" enabled.
3. developer setting menu is, settings>about phone>software and information>build number>tap 7 or 8 times, developer menu should now appear. (Sometimes it's somewhere else but build number is what you want to find and tap on 7-8 times).
4. To avoid any issues with device FRP lock, delete your google account off the phone., settings>accounts>google. delete it. When successfully flashed you just add the account again when the phone starts for the first time by signing in.
5. Use the same version of Odin you used to flash your S7.
you can also use updato.com (i think it's slightly faster than sammobile.)
Let me know how you get on.
Remember J727T (TMB) is the firmware you want.
Hello my operator started volte only on s9 so i extracted home csc from s9 and copied customer.xml pasted to csc folder but still not working. Or we need to flash modem too? Which files are related for volte to working i want to have early before they release.for s7 Or is device related
Thanks
Bump
Don't mess with the files unless you know what you are doing ! (you obviously not).
If your operator haven't enabled VoLTE for SM-G930, there is nothing you can do, only change operator, or phone.
mooms said:
Don't mess with the files unless you know what you are doing ! (you obviously not).
If your operator haven't enabled VoLTE for SM-G930, there is nothing you can do, only change operator, or phone.
Click to expand...
Click to collapse
Lol i know what im doing im not new, and im sure is related to csc or modem but im not gona flash s9 modem lol. I just playing around with csc. Than if somsthing go wrong i restore i have HOS in acces point but not IMS
bleros said:
Lol i know what im doing im not new, and im sure is related to csc or modem but im not gona flash s9 modem lol. I just playing around with csc. Than if somsthing go wrong i restore i have HOS in acces point but not IMS
Click to expand...
Click to collapse
If i could jump in here.
Volte isn't anything to do with csc, it's dependant on the operater enabling on the network and the firmware your device is running.
If your firmware is branded by the network this is how it can be enabled for specific devices and not yours , if your firmware isn't branded then the network operator cannot disable on your device. Unbranded firmware has all call functions enabled by default including Volte.
Some network operators even link functions to IMEI, if this is the case the only option is to change the phone.
cooltt said:
If i could jump in here.
Volte isn't anything to do with csc, it's dependant on the operater enabling on the network and the firmware your device is running.
If your firmware is branded by the network this is how it can be enabled for specific devices and not yours , if your firmware isn't branded then the network operator cannot disable on your device. Unbranded firmware has all call functions enabled by default including Volte.
Some network operators even link functions to IMEI, if this is the case the only option is to change the phone.
Click to expand...
Click to collapse
I have custom rom, if volte work for s9 should work for s7 too, so how they fix it? Volte on other devices , by updating firmware of course. Is firmware related not phone . They dont have compatibility to disable for some devices the tower is for all so they cant disable band.
But i will try to fix it i wont give up :good:
Working on SM-G930FD with Mint Mobile USA
Hi there,
I thought that I would share my findings. I got volte working on G930FD. The setting comes up under Connections --> Mobile Networks --> VoLTE calls. I have tested it with calls and LTE Discovery app to make sure that I am not dropping back down to 3g/H+/etc... The calls are so much better for me. I am hard of hearing, so it really helped me. I will list how I did it below.
1. Download this firmware. https://www.sammobile.com/samsung/galaxy-s7/firmware/SM-G930F/ROM/download/G930FXXS8ETC3/327944/
2. Use Odin v3.14.4 to flash BL, AP, CP, CSC ( I used CSC not HOME CSC)
3. Boot phone and enable developer mode (not sure if necessary, but this is the way I did it)
4. Reboot to download mode and flash TWRP (uncheck auto reboot)
5. Immediately after flash, reboot to recovery (Power, Volume down, Home to reboot, then Power, Volume up, Home to enter TWRP)
6. Swipe to allow modifications
7. Wipe--> Advanced Wipe --> Select Data --> Repair or Change File System --> Change File System --> EXT2 --> go back --> and then EXT 4 --> back all the way to main screen.
8. Install --> latest version of Magisk
9. Install --> CSCSelection_V3.0.0.zip https://forum.xda-developers.com/s7-edge/development/utility-flashable-csc-selection-30-t3392957
10. Aroma --> Select XXA (Multi USA) --> Select XAA (Unbranded)
11. Reboot and wait to boot (Takes a few minutes)
12. Check in Connections --> Mobile Networks --> VoLTE Calls
That's it. Good luck!!
Oh yeah, Wifi calling is in the dialer app under settings, but I have had no luck with it, even though Mint Mobile supports it.