Hi,
I am totally a newbie to Android, just moved from IOS, so please bear with me.
I am trying to make Reliance Jio sim work on my Samsung S7 edge (Sprint). Data is working just fine through Reliance jio sim on my mobile. But I am not able to activate Volte on mobile, so calls are not getting through. The Volte turn on/off tab is missing. I searched on the internet and found out that Sprint's network does not support Volte, so they have disabled the tab for it.
My model is SM-G635P
What is the best way out?? Do i have to root my phone??
Thanks in advance.
I am not aware if this will work with Sprint, Carrier locked versions are a little different, plus its Snap Dragon but this is what i did.. You need to change the CSC usually but yours being a sprint one, there will be some modifications for sure , I am pretty sure you wont have an INS CSC in your phone, so you might have to change to a stock US or UK one or maybe T Mobile. I would wait for an expert to tell you that for sure
This is for Reliance JIO Users - You dont need to flash your ROM, you can change your firmware to INS CSC and it works.
1) i used the Phone Info App (Download from the Google Play Store) and saw what CSC Codes were available for me to change to.
2) I downloaded a new firmware from Sam Mobile - You can google for them entering your model no - G-935fD, i am not sure if they are available here in XDA as well
3) My phone supported India CSC (You can see supported CSC's using the Phone Info App so i downloaded the India one it could be different for others.
4) I then downloaded ODIN and used the tuorial in this forum to flash my phone and change the CSC code.
https://www.youtube.com/watch?v=7SK3IMprKVQ this is the link with a step to step guide.
5) After that i factory reset my phone and downloaded the July Update Patch.
My phone after that has been able to make calls and i can see the VOLTE symbol, depending on the firmware it should either automatically come or you might have to manually enable it.
Hope this helps everyone else also. Factory reset usually helps and downloading the latest update too..
The method above will not work with Sprint Phones. Attempting it may brick your phone.
Activating VoLTE will mostly require some work at the root level. Hope someone who has knowledge about it can help you.
x017in said:
The method above will not work with Sprint Phones. Attempting it may brick your phone.
Activating VoLTE will mostly require some work at the root level. Hope someone who has knowledge about it can help you.
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Yes, thats what i told him the Sprint Carrier phones are very different and my method wouldnt work, its better he waits for an expert.
Hii..utkarsh86...I am currently using samsung s7 edge sm-G935F exoyns version from germany 1&1. I live in India and want to use jio VoLte. Is it possible for me to do so..if yes can you please tell me which firmware would support my phone. I tried phone info app but it does not show any available CSC is it fine if i flash it with any other firmware...please help..
Product Code: SM-G935FZDAXEG
PDA: G935FXXU1DQB7
CSC: G935FXEG1DQB2
Baseband: G935FXXU1DQB3
Bootloader: G935FXXU1DQB7
Try searching through the forums for your answer instead of posting another needless thread. I have answered how to fix the VoLte problem so please search.
I've searched the forums and no one seems to have an exact FIX for my issue. So I have a Galaxy Note 3 N9005 32GB black version, the phone works well in 3G, never had an issue with it but now my network provider recently upgraded their plan and offers 4G internet but my phone doesn't want to connect. The provider offers 4G through BAND 1 2100MHz and Note 3 N9005 does have that band but it doesn't want to connect. It only works on 3G and when I enable Mobile Data it says H+! Not once has it connected to 4G!
I wanna mention that my friend has the exact same N9005 phone and his phone works on 4G all the time. Both of us have the same contract with the same network provider!
The only difference between our phones is the CSC region, we have different CSC. MY SIM card works in 4G on his Note 3 and his sim card doesn't work on 4G on my phone. (we exchanged the SIM cards for testing). So the problem is from my phone not from the SIM card. My phone is also original, its not a Chinese clone! Its confirmed with "Samsung Phone Info" app from Play Store.
Here's a few things I already did that some of you may be inclined to recommend to me:
1 - My APN is correctly set
2 - I am on official stock Android Lollipop 5.0 latest version and the phone is not rooted
3 - I already did a factory reset + wipe cache partition
4 - I saw others suggesting that people may not be in the range of a 4G tower! Not the case! Like I said, I switched the SIM cards with my friend on a public bench, out in the open, not even behind walls. Of course and his phone connects to 4G with his SIM card and also with MY SIM card while my phone doesn't connect to 4G with neither of these SIM cards.
5 - In Mobile Networks > Network Mode, my phone is of course already set on 4G/3G/2G (auto connect) and by the way, my friend's Note 3 says LTE/WCDMA/GSM (auto connect) instead of 4G/3G/2G with the same language set on both phones. Why?? I know its the same thing and I know 4G stands for LTE and 3G for WCDMA but why does it appear differently on these phones?
6 - I already went to Service Mode via *#0011# and manually selected BAND 1 LTE, it says "no service" or "emergency calls only" if I do that so I switched back to "Automatic"
So what the heck is going on? This phone is giving me headaches! I'm close to smashing my phone! After this I sweared to my self this is the last Samsung phone I ever buy. Probably I will be switching to Asus or Lenovo in the future. Or any other phone that does NOT have this CSC BS! This CSC thing is a complete rip-off!
Im thinking that the problem could be my CSC perhaps?? My friend's Note 3 N9005 has a COA CSC (Cosmote Romania) and I have a XEF CSC (Unbranded France). Both phones are factory unlocked and work in all networks. They are not branded by any phone maker! His COA CSC is unbranded. Yes it belongs to a phone retailer but that retailer doesn't brand their phones, no bloatware, no SIM lock. If you buy a phone from Cosmote (with COA CSC) it works in all networks, unlike Vodafone or Orange who lock their phones and brand them.
What should I do? Should I attempt to change my CSC? If so, how? My phone warranty has expired a long time ago, so I shouldn't care that much about triggering Knox though not triggering it would be preferred.
Which path should I pursue? Should I simply use ODIN and flash a STOCK COA CSC (Cosmote Romania) or STOCK ROM CSC (Unbranded Romania) from SamMobile.com with the latest version of Lollipop? Would this trigger Knox? Will it affect my all networks unlocked status? I mean, I won't have to unlock it after that, right???
OR should I ROOT my phone, change CSC, then UNROOT? If so do you know of any method to root Lollipop 5.0 without triggering Knox?
What do you guys think? Whats the problem with my phone? Why doesn't it work on 4G? Because of CSC? Or is it something else?
Thanks!
The best way to confirm the model # would be to boot into Odin mode and look there.
audit13 said:
The best way to confirm the model # would be to boot into Odin mode and look there.
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What do you mean? Can you be more specific? I already told you my model number, its N9005!! Do you want a screenshot?
Dear OP, have you tried the other Samsung secret code? *#2263# then program it to accept LTE only.
That's the only foolproof way to get the Note to connect to LTE. In my country I only get 2-3 of the 5 LTE bars, so the Note wouldn't automatically connect to LTE or immediately stoop down to 3G through the settings. That specific secret code and setting is LITERALLY THE ONLY WAY TO GET MY NOTE 3 TO CONNECT TO LTE IN MY EXPERIENCE.
If that still doesn't get your phone to run LTE, either your carrier is whack or your phone is, and no amount of Cyanogenmod can fix it because your hardware modem inside the phone might be whack and you can't really do anything if that's the case...
Sent from my Galaxy Note 3 using XDA Labs
Odeira.Oloap said:
Dear OP, have you tried the other Samsung secret code? *#2263# then program it to accept LTE only.
That's the only foolproof way to get the Note to connect to LTE. In my country I only get 2-3 of the 5 LTE bars, so the Note wouldn't automatically connect to LTE or immediately stoop down to 3G through the settings. That specific secret code and setting is LITERALLY THE ONLY WAY TO GET MY NOTE 3 TO CONNECT TO LTE IN MY EXPERIENCE.
If that still doesn't get your phone to run LTE, either your carrier is whack or your phone is, and no amount of Cyanogenmod can fix it because your hardware modem inside the phone might be whack and you can't really do anything if that's the case...
Sent from my Galaxy Note 3 using XDA Labs
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Click to collapse
I have already explained that there is nothing wrong with my carrier because I switched my SIM card with my friend's phone who has exactly the same N9005 model and it perfectly works on 4G on his phone. The only difference I could find in our phones is the CSC.
As for the other suggestion you sent me, I already said that I've been to SERVICE MODE. The code you've given me does nothing on my phone but as I can see from your screenshots, it gets you to SERVICE MODE. I've already been there through *#0011# switched to LTE/GSM only or LTE/WCMA only and I've explained that it still doesn't do anything.
Can someone please answer me this? Would it help if I change the CSC? Could this be the problem I'm having???
It may help if your CSC is changed it can do no harm .
JJEgan said:
It may help if your CSC is changed it can do no harm .
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Ok, thanks! So how do I do this?
My phone warranty has expired a long time ago, so I shouldn't care that much about triggering Knox though NOT triggering it would be preferred.
As far as I know there are 2 methods to change the CSC. So how should I do it?
Should I simply use ODIN and flash a STOCK COA CSC (Cosmote Romania) or STOCK ROM CSC (Unbranded Romania) from SamMobile.com with the latest version of Lollipop? Would this trigger Knox? Will it affect my all networks unlocked status? I mean, I won't have to unlock it after that, right???
OR should I ROOT my phone, change CSC, then UNROOT? If so do you know of any method to root Lollipop 5.0 without triggering Knox?
Thanks
Booting into download mode will confirm the model #. Looking under the ROM's settings is not guaranteed to display the proper model #.
Both phones are running the same ROM, bootloader, and modem?
audit13 said:
Booting into download mode will confirm the model #. Looking under the ROM's settings is not guaranteed to display the proper model #.
Both phones are running the same ROM, bootloader, and modem?
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Click to collapse
Yes confirmed, same model, same baseband, same everything. The only thing different is the CSC. So whats next?
Did you try changing the csc by dialling *#272*enter IMEI#? Not sure if this method will work for your model of note 3.
audit13 said:
Did you try changing the csc by dialling *#272*enter IMEI#? Not sure if this method will work for your model of note 3.
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Click to collapse
No I haven't I'm trying now. Wow if this works Im gonna buy you a beer!
It doesn't work! just my luck! I entered this code: *#272*IMEI-number# and pressed call button, it says "Connection problem or invalid MMI code."
I just tried it on my Note 2 and S4 and it works. Maybe the phone is not running a multi-csc stock ROM?
I don't have a note 3 to try.
audit13 said:
I just tried it on my Note 2 and S4 and it works. Maybe the phone is not running a multi-csc stock ROM?
I don't have a note 3 to try.
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Perhaps the code you gave me only works on older version of Android such as KitKat or whatever you have on Note 2... anyway Im using Samsung Phone Info app from Play Store and my CSC is XEF and under Available CSC Codes there is a bunch of CSC codes. Here I've made a sccreenshot:
From as far as I know there are only 2 ways to change the CSC: root or flash a different stock ROM
Yes, the note 2 has kit kat but the s4 is running stock lollipop.
audit13 said:
Yes, the note 2 has kit kat but the s4 is running stock lollipop.
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Well unfortunately the code doesn't work on my phone. Anyway if you know for a fact, could you tell me this? Is it safe to reflash another STOCK rom from sammobile? Will it affect my phone in any way?
Thanks
Yes, it is safe to flash stock ROMs from sammobile.com.
I just flashed a local stock ROM and guess what, when I go to Phone Info app it still shows the same CSC! I still have XEF CSC, how can this be? Why hasn't the CSC change?
After flashing the stock rom, did you try the csc code I mentioned? Same thing happens when I flash a Rogers carrier rom over a Telus carrier rom. Once I select telus as the carrier from the csc menu, the Rogers app will disappear and the Telus app appears.
Ok after further researching I found a lot of interesting stuff so I'm gonna write it all down for other people who may need it in the future.
1 - If you have a multi-CSC phone and you flash a different CSC but which is in your "Available CSC" list but which you cannot choose or change without root, your CSC will NOT change. For example: I have flashed ROM CSC (Open Romania) on my XEF CSC (Open France) and guess what after the flash was successful and all, the CSC didn't change! It was still on XEF because ROM was in my "available list".
2 - If you try to flash a different CSC which is NOT in your list, then Odin will FAIL and softly brick your phone. For example: I got my phone bricked, trying to flash 2 CSCs which are not in my "available list": COA (Cosmote Romania) and DBT (Open Germany). In order to fix this issue all you have to do is to reflash YOUR OWN CSC, in my case it was XEF. Or you can even flash one of those CSC which are "available" or compatible so to say, such as "ROM" for example.
This is the firmware I currently have on my phone:
http://www.sammobile.com/firmwares/download/61565/N9005XXUGBOK6_N9005OXXGBOJ2_XEF/
These are the two firmwares I tried to flash on my phone, hoping to replace XEF with:
http://www.sammobile.com/firmwares/download/63441/N9005XXUGBOK6_N9005COAGBOK1_COA/
http://www.sammobile.com/firmwares/download/61464/N9005XXUGBOK6_N9005DBTGBOI1_DBT/
BOTH FAILED in Odin!
There are ONLY 2 ways to change the CSC on newer Samsung phones. Most guides online are based on KitKat 4.4 or older guides but for 5.0 Lollipop or even NEWER there are ONLY 2 ways to change your CSC:
1 - Root your phone and change the CSC. There are plenty of guides on how to do that online.
2 - You can avoid rooting your phone and use Odin instead, BUT accompanied by your stock firmware, you will also have to find and use a PIT file because Samsung as of 5.0 Lollipop uses different partitions for all the different regions. HOWEVER messing with PIT files is super risky and it can permanently brick your phone so its just better to root your phone instead! Dont waste your time trying to flash different regions/csc which is not in your available csc list, it won't work!
What can I say? Samsung is trying hard to block their users from changing their CSC... Why? They prefer their users buy new phones. Its pure greed yes but its what it is... For me, this was the last Samsung phone I ever buy. Im truly disappointed.
I have a Galaxy S8 Duos (G950FD - Dual Sim model), which has had CSC changed to allow me to use Samsung Pay in UK, as well as other features.
Phone is now configured with XEU CSC
I am unable to find the options to enable Wi-Fi Calling on this phone. Anyone know why ?
I have NOT tripped Knox Warranty on this phone (changing CSC does not trip Knox) and have NOT flashed any custom ROMS, bootloaders or recoveries, or rooted the phone. Firmware information is shown below -
When i got from s8 direct from samsung uk it had a btu csc, im on three and wanted wifi & volte so i flashed the three firmware with the csc file and it change my csc to hg3.
Wifi now showed in the dialer settings and worked fine but i never knew if volte worked as i never saw the icon show for it.
I went back to stock from three with an oxm csc file and this changed my csc to xeu/xeu/btu and not btu/btu/btu , now i have lost wifi calling with xeu yet others here say they have it with xeu.
Yeh I have it with xeu, had to re-enable it with Vodafone UK after that it appeared...also after I flashed xeu firmware I factory reset it again.
Sent from my SM-G950F using XDA-Developers Legacy app
jadaress1 said:
Yeh I have it with xeu, had to re-enable it with Vodafone UK after that it appeared...also after I flashed xeu firmware I factory reset it again.
Sent from my SM-G950F using XDA-Developers Legacy app
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Thanks @jadaress1!! That was exactly what I needed. I turned off phone, got hold of Vodafone, asked them to turn off WiFi calling on my SIM and turned on phone. Waited for a few minutes and turned off phone. They then re-enabled WiFi calling on my SIM. I waited for 15 minutes, turned on phone, went to Phone > Settings and down at the bottom, Wi-Fi Calling now appeared and I could enable it.
Hi guys,
Sorry I just need a quick answer to this and I can't seem to find a straight answer anywhere. I have a G935F on 3 UK firmware and I want to change the firmware to either BTU or XEU, as the updates are ridiculously slow on this software version. I have read in multiple places that the CSC code is hard coded and cannot be changed, and then other places say this is merely cosmetic and flashing a new firmware will enable you to get OTA updates from the new desired CSC code.
Please can somebody shed some light on this for me, if I flash BTU or XEU will I be able to get updates as normal, and also which is better to flash XEU or BTU. If anybody can advise would either of these packages allow VoLTE and Wifi Calling to work? 3 supports them on the firmware I am currently on, but I was unsure if unbranded firmwares would support this.
Thanks!
jaaystott said:
Hi guys,
Sorry I just need a quick answer to this and I can't seem to find a straight answer anywhere. I have a G935F on 3 UK firmware and I want to change the firmware to either BTU or XEU, as the updates are ridiculously slow on this software version. I have read in multiple places that the CSC code is hard coded and cannot be changed, and then other places say this is merely cosmetic and flashing a new firmware will enable you to get OTA updates from the new desired CSC code.
Please can somebody shed some light on this for me, if I flash BTU or XEU will I be able to get updates as normal, and also which is better to flash XEU or BTU. If anybody can advise would either of these packages allow VoLTE and Wifi Calling to work? 3 supports them on the firmware I am currently on, but I was unsure if unbranded firmwares would support this.
Thanks!
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Hi if this is of any help i was on Vodafone and decided i didn't want there bloatware on here so i flashed the latest XEU as it was newer than BTU.
When i go into the phone app it shows me what my old csc was and the active one which is xeu you do get updates plus i got WiFi calling enabled still but had to get vodafone to activate it on my account again.
Hi all
Current setup: S7 Edge G935F, CSC: TEL, provider: Telstra , ROM: Superman 2.7 .
Problem: There is no option to video call when I try to call. I also cannot find any options in settings or the phone app to change this.
ROM developer says that it is a CSC issue. I've tried XSA CSC with no luck. The others.xml file in the TEL CSC seems to be enabling video calling but it is still not available.
e.g.
<CscFeature_IMS_EnableLTEVideoCall>TRUE</CscFeature_IMS_EnableLTEVideoCall>
<CscFeature_VoiceCall_ConfigViLTESettingMenu>TELViLTE</CscFeature_VoiceCall_ConfigViLTESettingMenu>
Any lines I could add or change? Any other ideas? Would like to keep VOLTE and VoWiFi.
Thanks for your help in advance
Just to let any future readers know that I did end up getting video calling to work on my S7 Edge running superman ROM 2.7 . The TEL (Australia, Telstra) CSC in the 2.5.0 selection by tkkg1994 ( https://forum.xda-developers.com/s7-edge/development/utility-flashable-csc-selection-30-t3392957 ) enabled it for me. Keep in mind that my provider is Telstra in Australia and that is why it works for me. Both the provider and the CSC must support video calling in order for this to work. I did not end up working out what line to change but there is a line in the customer.xml file in the csc folder that looks like it enables video calling => just ctrl+F and search for "video" in that file and you should find it.
TLDR: This is indeed a CSC issue and both the telecommunications provider and the CSC must support video calling (and probably match) in order for this to work. I worked this out by flashing a more up to date CSC from my provider.