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Need help, no radio!

I am a pretty decent android er. But damn, I got in trouble with my unlocked s7, flashing the new superman 1.5. I used the att csc option in aroma, and I had no SIM service. Nor imei, I tried to go back to 1.4.1 with corresponding BL, nothing, so I odin'd a stock package, and I did take, but still, everything SIM related or 5 ghz WiFi is down, since I've already dl'ed and installed a stock package from sammobile, what else are my options? Thanks a lot for anyhelp, I read that w other guys had a similar issue until it was noted that the att and tmo cscs were incompatible.

This is similiar to the problem I had. The CSCs for ATT and TMB (possibly sprint and Verizon if they exist) are bad. They are designed for a qualcomm device. T-mobile also uses a custom ims profile for their wifi/volte that has not been ported in the S6 or Note5 to international models even though they share the same chipset. - this may be cause for a bounty.
What I did after having this issue was reinstall the rom after a wipe, choosing a non-US carrier (the default one, for instance). It worked fine afterwards.

rp3 said:
This is similiar to the problem I had. The CSCs for ATT and TMB (possibly sprint and Verizon if they exist) are bad. They are designed for a qualcomm device. T-mobile also uses a custom ims profile for their wifi/volte that has not been ported in the S6 or Note5 to international models even though they share the same chipset. - this may be cause for a bounty.
What I did after having this issue was reinstall the rom after a wipe, choosing a non-US carrier (the default one, for instance). It worked fine afterwards.
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That was my first instinct but everything I flash doesn't help, reflashing 1.5 and choosing sweeden, Nordic or Australian is the same, same with 1.4.1, and I reflashed a sock OS via Odin and still nothing, and then I refreshed twrp and redid 1.5 and still! Which has me worried

Did you wipe first? Also, are you using a 930f or a 930FD. If FD, there could be other problems.

rp3 said:
Did you wipe first? Also, are you using a 930f or a 930FD. If FD, there could be other problems.
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Yeah, i mean i have to do a wipe to go from encrypted to un encrypted, I also only have the single sim. But i mean anyways, i def am solid on flashings and full wipes and stuff, I mean doing a stock OS through odin would def fix this normally, I can figured what little poison this superman left behind that isnt getting reset after flashes and wipes

I'm having the same issue. I have the FD (SM-G930FZSUXSG) I'm trying to find a factory image but am having no luck so far. I'll be keeping an eye on this thread to see if you get it resolved.

zombicidal maniac said:
I'm having the same issue. I have the FD (SM-G930FZSUXSG) I'm trying to find a factory image but am having no luck so far. I'll be keeping an eye on this thread to see if you get it resolved.
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doing a little more research, i wonder if i didnt lose my IMEI somehow, it looks like the same symptoms

All the different firmware I've been flashing lets it boot into android but the Baseband only shows unknown. I don't know for sure which one would be the correct version for the model I have
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Edit- After more searching it seems my model is the United Arab Emirates model. Now I just have to figure out which firmware is the correct for that model and hope I can fix it with that but who knows.

zombicidal maniac said:
All the different firmware I've been flashing lets it boot into android but the Baseband only shows unknown. I don't know for sure which one would be the correct version for the model I have
Edit- After more searching it seems my model is the United Arab Emirates model. Now I just have to figure out which firmware is the correct for that model and hope I can fix it with that but who knows.
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So you have the same issue?

Yes. Everything was good when I got the phone new but now I need to find the factory firmware but so far no luck.

[HOW-TO] SIM unlock US Cellular Moto G 2015 XT1548

Warning: This guide requires unlocking the bootloader, which will void your warranty.
Confirmed working for T-Mobile/MetroPCS. I welcome other XT1548 users to try this process for themselves.
1) Unlock the bootloader, install a recovery, and root the device. Follow instructions in this forum already as other people have made much higher quality guides than I could make.
2) Perform the tutorial located here to flash XT1540 modem and associated files: http://forum.xda-developers.com/2015-moto-g/help/tuto-fastboot-erase-signal-t3451362
3) Flash the latest version of CM13: https://download.cyanogenmod.org/?device=osprey
4) Install GApps/all other necessary apps for CM13
5) Dial *#*#4636#*#* to switch to LTE/GSM (auto) mode
6) Enter the correct APN for your carrier
7) Enjoy your GSM unlocked device!
Few remarks: it may not be needed to flash the XT1540 files. It seems like the block is only on US Cellular's software. But I'm leaving the step added in as it is what worked for me. Any suggestions for polishing the tutorial would be appreciated.
A few photos: (note that this was done on an active SIM, but without paid for service. 611 works correctly, as does the T-Mobile/MetroPCS portal).
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dwegiel said:
Warning: This guide requires unlocking the bootloader, which will void your warranty.
Confirmed working for T-Mobile/MetroPCS. I welcome other XT1548 users to try this process for themselves.
1) Unlock the bootloader, install a recovery, and root the device. Follow instructions in this forum already as other people have made much higher quality guides than I could make.
2) Perform the tutorial located here to flash XT1540 modem and associated files: http://forum.xda-developers.com/2015-moto-g/help/tuto-fastboot-erase-signal-t3451362
3) Flash the latest version of CM13: https://download.cyanogenmod.org/?device=osprey
4) Install GApps/all other necessary apps for CM13
5) Dial *#*#4636#*#* to switch to LTE/GSM (auto) mode
6) Enter the correct APN for your carrier
7) Enjoy your GSM unlocked device!
Few remarks: it may not be needed to flash the XT1540 files. It seems like the block is only on US Cellular's software. But I'm leaving the step added in as it is what worked for me. Any suggestions for polishing the tutorial would be appreciated.
A few photos: (note that this was done on an active SIM, but without paid for service. 611 works correctly, as does the T-Mobile/MetroPCS portal).
Click to expand...
Click to collapse
You did a whole ton of extra work. The USC Motorola phones are factory unlocked so any rom (even stock) would work out of the box. It's only the Sprint/Virgin Moto phones are are locked.

purplefruity said:
You did a whole ton of extra work. The USC Motorola phones are factory unlocked so any rom (even stock) would work out of the box. It's only the Sprint/Virgin Moto phones are are locked.
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Wrong, by default the XT1548 only gets LTE signal. Even setting/forcing GSM on in the testing menu does not allow it to get service for talk/text on T-Mobile.

dwegiel said:
Wrong, by default the XT1548 only gets LTE signal. Even setting/forcing GSM on in the testing menu does not allow it to get service for talk/text on T-Mobile.
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Thats weird. The best I can get for GSM on my Sprint variant is International sim. For the international sim, it works without any issues on stock rom. USC might be a little different.

Is there any type of updated guide for this because I have the XT1548 and I have had no luck with unlocking it. Any tips would be extremely useful.

What stock firmware will work on this apparent refurb S7?

A friend's S7 is stuck on Android 7.0 but they brought it to me because their wife has the same phone but it upgraded to Android 8.0. Despite reboot, and factory data reset, when I press System update nothing happens, there is no UI response at all.
There has been some confusion over over which firmware to use as when I have provided screenshots as different people have told me because I am in Ireland I should use XEU, others have told me I should use INS or something else. The about device menu, the download firmware upload screen, the CSC dial code, and the Phone Info app all report the phone is a different model. Please see the different models and device information observed below.
SM-G930F observed:
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Initially based on this with Odin I tried flasing https://samfw.com/firmware/SM-G930F/XEU/G930FXXU8ETI2 :
Looking at Odin it seemed to work, but I read on successful flash a new reset button should appear where the green pass box is displayed but at the end this just appeared for a split second before reverting to the green pass box, before the phone restarted itself. On checking nothing has changed, still Android 7.0, despite reboot, and trying to flash again.
On further investigation, apparently the CSC that's an Indian dual sim SM-G930FD:
But this is a single SIM model:
SM-G930P observed:
I tried the same firmware again, this time using the CSC file instead of CSC home:
Phone Info app screenshots, SM-G930V observed:
The main purpose of trying to upgrade is to enable the owner to link a heart rate monitor watch device to it with Bluetooth which required 8.0, as to alert them to any heart abnormalities. Due to this, I would rather not use any custom ROM and only stock.
Is there a stock version firmware that will work with this device, and are there any higher than normal risks involved with flashing it with Odin? It was mentioned to me that because the device is an apparent refurb the risks are 50/50, and I would rather make the owner aware of this before flashing if that is the case.

CPU-Z:

I might be able to help you,
Is the phone model SM-G930F or SM-G930/A/P/V/some other kind of USA variant?
Can you show a picture of the device in stock recovery mode as-well as a picture OEM unlock in the developer menu?
The phone seems to display multiple times, the Snapdragon variant of the S7.
The phone also seems to show the bootloader and the baseband/modem, as G930P, the Sprint version of the S7,
the build version/PDA, and the CSC shows G930V, meaning the Verizon version of the S7. These two models probably shows that the S7 used to be a Snapdragon S7, not the Exynos version (G930F)
You said the phone is a apparent refurb, right?
The only reason I could think of why Odin somehow flashed SM-G930F firmware is that it probably has some kind of USA/Snapdragon variant of the S7 logic board and has the rest of the part with the model SM-G930F.
Not sure yet, but you may want to try flashing a USA variant of the S7 firmware.
Alternativly, if it is overruled that the phone is not a Snapdragon S7, you may choose to use this custom ROM/firmware. Everything works as it is just regular stock ROM (android oreo 8).

Things you can try:
Flash the latest Nougat firmware, then flash Oreo.
Flash the firmware in separate (eg. Bootloader only, CP only, ...)
Flash the latest recovery (extract it from the firmware) and wipe the phone with it, then head to the updated Bootloader (that you flashed separately) and try flashing again.
Use custom stock ROMs, if all you need is just Samsung Health, otherwise, even AOSP ROMs can make the deal.
Flash an earlier version of Oreo.
It doesn't matter a lot if the phone is refurbished or not, you only write to the motherboard, so knowing what chip and model your motherboard have is the only pillar you need.

Question [SOLVED] M127F stuck with Russia (SER) CSC after flashing Brazil ROM and later trying to flash back to XEO

So I wanted to try something so I flashed the Brazil ROM. tried to flash back to XEO but now in the settings it says "SER/SER,SER/XEO" and when resetting installs Russian bloatware. What can I do to restore the XEO ROM?

Dis you do a factory reset?

physwizz said:
Dis you do a factory reset?
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yeah i did but its still stuck with ser csc

Flash stock ROM

@Malware said:
Flash stock ROM
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did that many times but it still didn't change but for now im okay with it just disabled updates so i wont get stuck with russia rom without an option of downgrading via alliance shield x and it works fine

hxudsh said:
did that many times but it still didn't change but for now im okay with it just disabled updates so i wont get stuck with russia rom without an option of downgrading via alliance shield x and it works fine
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That is weird. Full Brazilian stock firmware set? AP, BL, CP and CSC_OMC_ODM? Once the device is restarted after flashing get into the recovery straight away (hold power + volume up with the USB cable connected to PC). Don't let it boot Android! In the recovery do Factory Reset, format the data partition (if it's possible in the stock recovery, I don't remember) and wipe all the caches and only then boot the system. Also try removing the SIM card before flashing and also do the first boot of Android without SIM (although it shouldn't matter but who knows).

uluruman said:
That is weird. Full Brazilian stock firmware set? AP, BL, CP and CSC_OMC_ODM? Once the device is restarted after flashing get into the recovery straight away (hold power + volume up with the USB cable connected to PC). Don't let it boot Android! In the recovery do Factory Reset, format the data partition (if it's possible in the stock recovery, I don't remember) and wipe all the caches and only then boot the system. Also try removing the SIM card before flashing and also do the first boot of Android without SIM (although it shouldn't matter but who knows).
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yeah it was the full set but it also didnt fix it but im fine with it unless as my sim card and mobile data will stop working but currently even volte is working so im fine with it

hxudsh said:
yeah it was the full set but it also didnt fix it but im fine with it unless as my sim card and mobile data will stop working but currently even volte is working so im fine with it
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I remember that when I did disassembling of the Prism partition of different country versions I've discovered that most of the European firmwares contain the full set of Russian bloatware. In fact, all the firmwares with the size of more than 5 GB are all nearly identical in regards of bloatware included. So I can suggest you to temporarily install a Nepal or Papua New Guinea firmware, do the factory reset with it, go fully through the setup process, and then try again to flash the Brazilian version. It may help. Or you can stay with the Nepalese firmware, it's quite minimalistic and includes Samsung Pay (if you need it).

uluruman said:
I remember that when I did disassembling of the Prism partition of different country versions I've discovered that most of the European firmwares contain the full set of Russian bloatware. In fact, all the firmwares with the size of more than 5 GB are all nearly identical in regards of bloatware included. So I can suggest you to temporarily install a Nepal or Papua New Guinea firmware, do the factory reset with it, go fully through the setup process, and then try again to flash the Brazilian version. It may help. Or you can stay with the Nepalese firmware, it's quite minimalistic and includes Samsung Pay (if you need it).
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Click to collapse
ok but the m127f model doesnt have a nepal or papua new guinea firmware

Try Bolivia: https://samfw.com/firmware/SM-M127F/BVO
The general rule of thumb is the smaller firmware is the less bloated it is. Also prefer firmware for the poor and commercially unpromising countries, the so-called "3rd world".

sorry for reviving this thread but is there a way to get lte back? all i want is "good" mobile data and lte works good on my huawei, so can i get it back on my samsung without somehow changing the csc? (the carrier i use is Play in Poland)

after around 8 months, today i finally got my lte back via the samfw frp tool
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N971N - Limited Service after firmware upgrade

I have a Galaxy Note 10 N971N which was running a custom firmware earlier and my T-Mobile sim card was working perfectly fine. I recently factory reset my phone and upgraded to Android 12, latest firmware available. Ever since the upgrade, my phone is showing Limited Service and the SIM card is not working at all. I tried AT&T as well but it keeps giving the same error.
Already went to T-Mobile's store, they changed my SIM card, reset network settings but nothing seems to work. How can I fix this?
Thanks in advance.

Factory reset after loading 12?
Make sure 4G VoLTE is enabled, etc check dial code phone settings. *#*#4636#*#*
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blackhawk said:
Factory reset after loading 12?
Make sure 4G VoLTE is enabled, etc check dial code phone settings. *#*#4636#*#*
View attachment 5649171
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I tried factory resetting and that didn't do anything either. Also ever since I've flashed this firmware, I keep getting some message in Korean every time I restart and I think it says that my bootloader is unlocked or something like that.

zainmerchant said:
I tried factory resetting and that didn't do anything either. Also ever since I've flashed this firmware, I keep getting some message in Korean every time I restart and I think it says that my bootloader is unlocked or something like that.
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The bootloader should be locked unless you unlocked it. You should be able to roll back to 11 unless it upgraded the bootloader. So far nobody's reported this on Samsung with 12.

Any custom ROMs working for this device?