[Q] Not receiving calls - Galaxy S6 Q&A, Help & Troubleshooting

I am really tired of the same situation, please help me.
My 920I Galaxy S6 has stopped receiving calls, either if I am using the phone or it is locked I won't receive any call, I have to restart my phone to get the messages of missed calls and call them back. I tried many different modems, bootloader, roms and firmwares and nothing has worked. Also, I tried both on WIFI and 3G/4G and it doesn't work.
PLEASE, I need your help .

Ensure you flash the CORRECT modem. It's a common modem problem.

Rakcoon said:
Ensure you flash the CORRECT modem. It's a common modem problem.
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How can I know it's a correct modem or not? I only have flashed 920I modems

Völkr said:
How can I know it's a correct modem or not? I only have flashed 920I modems
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Please, help me!

Related

Convert G920F to G920I

I asked the other day about using the G920I modem on my G920F as to improve the poor reception on my phone. The next question I hope anyone can answer is would just converting the whole phone to a G920I using stock rom. The hardware in each phone is exactly the same especially the modem which is a samsung shannon. The only difference is the couple of different basebands but these are present in both varients of the modem just software locked. I cant see any reason as to why I could not do this but would like to hear if you have a take on this. Thanks. I have found threads with other people that seem to have managed it but everytime I flash the stock G920I rom it fails. Just wondering what Im missing.
Marshall1975 said:
I asked the other day about using the G920I modem on my G920F as to improve the poor reception on my phone. The next question I hope anyone can answer is would just converting the whole phone to a G920I using stock rom. The hardware in each phone is exactly the same especially the modem which is a samsung shannon. The only difference is the couple of different basebands but these are present in both varients of the modem just software locked. I cant see any reason as to why I could not do this but would like to hear if you have a take on this. Thanks. I have found threads with other people that seem to have managed it but everytime I flash the stock G920I rom it fails. Just wondering what Im missing.
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G920I Firmwares SUCKS, i am stuck in 5.1.1 and its a horrible experience, i miss 5.0.2 :crying:
Im on G920F 5.1.1 custom rom and its excellent. I need the modem from the G920i as it addressed the poor reception issue. No such modem has been released yet for the G920F hence I want to change. Once on G920I i will install a custom rom anyway so all will be good.
Marshall1975 said:
Im on G920F 5.1.1 custom rom and its excellent. I need the modem from the G920i as it addressed the poor reception issue. No such modem has been released yet for the G920F hence I want to change. Once on G920I i will install a custom rom anyway so all will be good.
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Have you tried to flash the 920I modem? I think it may be possible to do so as they have the same baseband chip.
But I am not sure whether we can get back the original modem if the flashing failed. I used to have a Nexus 4. Even when I flashed a wrong radio, I can always get back by flashing the right one. It is just a partition with constant data on the device. But I don't know whether samsung is the same.
Flashing a complete stock rom maybe impossible. I think Odin checks the model name, and prevent the flashing if they don't match (Just guess).
geanv said:
Have you tried to flash the 920I modem? I think it may be possible to do so as they have the same baseband chip.
But I am not sure whether we can get back the original modem if the flashing failed. I used to have a Nexus 4. Even when I flashed a wrong radio, I can always get back by flashing the right one. It is just a partition with constant data on the device. But I don't know whether samsung is the same.
Flashing a complete stock rom maybe impossible. I think Odin checks the model name, and prevent the flashing if they don't match (Just guess).
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Yeah I tried flashing the modem only but when odit checks the PIT it fails straight away. Did try flashing the full stock package but again no joy. Its annoying as people with G920i dont seem to be suffering the issues that the G920F has with poor cell signal. Its definately a phone issue as I am on my third one lol. Have flashed the brand new modem package that was released a couple of days ago but has mad no difference at all surprise surprise. I think your correct though as odin must check the model number before flashing. Hopefully a dev could come up with a way to bypass the check as like you say the modems and hardware are identical on both models. The only difference is a couple of basebands which from my research are only software locked anyway.
You cannot flash G920I modem to a G920F and vice-versa. They are not compatible.
Marshall1975 said:
Yeah I tried flashing the modem only but when odit checks the PIT it fails straight away. Did try flashing the full stock package but again no joy. Its annoying as people with G920i dont seem to be suffering the issues that the G920F has with poor cell signal. Its definately a phone issue as I am on my third one lol. Have flashed the brand new modem package that was released a couple of days ago but has mad no difference at all surprise surprise. I think your correct though as odin must check the model number before flashing. Hopefully a dev could come up with a way to bypass the check as like you say the modems and hardware are identical on both models. The only difference is a couple of basebands which from my research are only software locked anyway.
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So I guess g920i and f have different partitions. their partition for radio may have different sizes As I found the modem.bin of these two models are In different sizes.

[Completed] Not registrated on network

After firmware update via odin, my samsung's i9300 IMEI changed and it goes something 004999... everything works fine except calls, it says that is not connected on network. Can anyone help me?
vrljick said:
After firmware update via odin, my samsung's i9300 IMEI changed and it goes something 004999... everything works fine except calls, it says that is not connected on network. Can anyone help me?
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Hi,
Try asking here https://forum.xda-developers.com/galaxy-s3/help where you can get help from the experts.
Good luck.

[Q]Flashing a 920T rom on a 920i phone

I'm thinking about getting a 920i phone for use on T-mobile and was wondering if it would be possible to flash 920T rom on it so I could obtain WiFi calling? (I'm assuming the stock 920i rom does not support WiFi calling.) Also, I would like to be able to use Samsung pay so therefore this would have to be done without tripping the Knox counter.
You'll brick you device
I'm curious to know why this would cause a brick
deltacity said:
I'm curious to know why this would cause a brick
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Can you wear yours sister jeans ? No you cannot. Different rom flashing in deferent mobile will brick because of different botloader modem cache partition etc ... Also to get better explanation use google for mor detailed answer
Well the only thing that would be different would be the modem and bootloader possibly (since both are Samsung Galaxy S6's) . I'll just have to hope maybe wifi calling will work on the 920i
deltacity said:
Well the only thing that would be different would be the modem and bootloader possibly (since both are Samsung Galaxy S6's) . I'll just have to hope maybe wifi calling will work on the 920i
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Did it work?

S7 Not registered on network issue

So I recently bought an S7 and was happy with it, until I got hit with an FRP lock that wouldn't let me boot. So I flashed the stock ROM from sammobile, this fixed the boot problem but now I can't use my phone to call or text, I can only use wi-fi, I have "emergency calls only" displayed where the network should be... I have tried reflashing the ROM several times, different modems and no luck, I also tried smartswitch which also didn't help. I have no clue what to do now. :crying: all similar threads about this are old. Someone pls help me.
You must flash the correct firmware for your device.
Andycapn said:
So I recently bought an S7 and was happy with it, until I got hit with an FRP lock that wouldn't let me boot. So I flashed the stock ROM from sammobile, this fixed the boot problem but now I can't use my phone to call or text, I can only use wi-fi, I have "emergency calls only" displayed where the network should be... I have tried reflashing the ROM several times, different modems and no luck, I also tried smartswitch which also didn't help. I have no clue what to do now. :crying: all similar threads about this are old. Someone pls help me.
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Is your IMEI okay ??
Phone likely reported stolen and IMEI blocked
mrpascal said:
Is your IMEI okay ??
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It displays the correct IMEI but status is NG
*Detection* said:
Phone likely reported stolen and IMEI blocked
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I hope not... I think I got frp lock because I for whatever reason disabled OEM unlocking(i didn't know what it was) in developer options.

Need help flashing rom on my Samsung device.

Hi everyone,
I bought a phone from a friend, turned out the phone was a Russian version but the was thing is that, it doesn't connect to my local network, sim works fine but whenever I try making a call, it says "not registered on network ". I Googled this issue and finally found a way which I hope will work. And that's flashing it with firmware made specifically for my region, but the model number differs. The phone model number is SM-A750FN while the firmware I found online for my country is SM-A750F. Can I flash it without facing any problem? Or if you any better way to solve the network issue I'd be glad to know.
Thanks in advance.
muab09 said:
Hi everyone,
I bought a phone from a friend, turned out the phone was a Russian version but the was thing is that, it doesn't connect to my local network, sim works fine but whenever I try making a call, it says "not registered on network ". I Googled this issue and finally found a way which I hope will work. And that's flashing it with firmware made specifically for my region, but the model number differs. The phone model number is SM-A750FN while the firmware I found online for my country is SM-A750F. Can I flash it without facing any problem? Or if you any better way to solve the network issue I'd be glad to know.
Thanks in advance.
Click to expand...
Click to collapse
You don't necessarily need to flash the whole firmware, you could probably just extract the modem.img from the A750F firmware and then convert the modem.img to an Odin flashable .tar file and then flash the file using Odin. All you should need to change is the software that controls your radio.
Droidriven said:
You don't necessarily need to flash the whole firmware, you could probably just extract the modem.img from the A750F firmware and then convert the modem.img to an Odin flashable .tar file and then flash the file using Odin. All you should need to change is the software that controls your radio.
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Oh! Thanks, genius.
muab09 said:
Oh! Thanks, genius.
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And my imei number is changed, hope that won't cause an issue?
muab09 said:
And my imei number is changed, hope that won't cause an issue?
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Yes, IMEI changing will definitely cause an issue, the network will not recognize your device if the IMEI is different than the one that should be there. There is more than one tool or method to fix your IMEI issue, I'm not familiar with those tools or how to use them as I've never had a need to use them.
Try doing a Google search for:
"How to repair IMEI on (your specific model number)".
Thanks

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