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[Q] G900F Network registration problem after flashing

Hi I have international version of S5 G900F. I flashed the phone with UK BTU stock rom. Now the problem is I cannot connect to the Network.
I tried going to Settings->More Networks -> Network Operators -> Select automatically . It took 5-10 mins to search but cannot connect.
Sim is not locked as it was working before I flashed the stock rom. also I read somewhere in internet that once the phone is region unlocked, it is permanently unlocked to use any other country sim. I don't know the original region of my phone but I bought it in Uk from 3rd party dealer not from any carrier.
I can think of two thing at the moment. It should be either regional locked again, but it does not prompt any thing to activate or enter pin or anything like that. or it should be wrong modem.
Is there a way to find if the phone is region locked ?
and is there a way to find correct region of the phone ?
the label on the box was removed so I cannot find from the box as well.
Thanks in advance.

I still haven't fixed this problem. Could someone suggest how to fix?

I've attached some screenshots with my phone info.
first image shows NETWORK:UNBLOCKED and IMEI Certi: PASS
-> I think this means, the phone is not blocked by network, and IMEI certificate has passed so it's not stolen or lost claimed phone.
another screenshot is the Firmware and CSC code/country information,
-> this means, this phone is build to sell in UK, so UK sim should unlock the regional lock.
Also the phone was working fine before I installed stock rom which I dowloaded from sammobile.
in the sceenshot, one of the network is connected but it says emergency call only because it cannot register to the network.
It is not sim lock also, because when I put T-mobile sim it does not ask for pin to unlock also.
what is wrong here. any idea guys? xda supposed to be the biggest android forum and samsung s5 is one of the most popular phone at the moment, isn't there anyone who have similar problem and solved? or atleast give some reason this cannot be fixed at all.

does the TMobile sim work? does it register with the network? If yes, then call the provider (of the other sim) and ask what's going on. Maybe you have a broken sim?

blesio said:
does the TMobile sim work? does it register with the network? If yes, then call the provider (of the other sim) and ask what's going on. Maybe you have a broken sim?
Click to expand...
Click to collapse
I've tried with Orange sim, and it still cannot register to the network. When I put the orange sim, it pop up a dialogbox asking to choose a network provider, there was two options, T-mobile and orange. So it is detecting the sim, but it cannot register.
And also, I tried my sim in another phone, and my sim works in another phone without any problem.

Did you try to flash the firmware again, and then after that restore factory defaults?

blesio said:
Did you try to flash the firmware again, and then after that restore factory defaults?
Click to expand...
Click to collapse
Yes I did, still it didn't work. I emailed samsung customer service with the problem, and they asked me to restore factory defaults.
I did that again but didn't work.
I tried one custom ROM as well. same problem in that rom.

You're rooted? If yes then there might be problem with the modem part of the ROM, can you install the official one part ROM and try with that?

blesio said:
You're rooted? If yes then there might be problem with the modem part of the ROM, can you install the official one part ROM and try with that?
Click to expand...
Click to collapse
I've installed stock rom several times, and several different versions( from here: http://www.sammobile.com/firmwares/1/?model=SM-G900F&pcode=0 ). Rooted several times, installed modem.bin files several times from many custom rom/ stock rom. None of them worked. I tried installing modem.bin when not rooted as well. And all the attempt failed.
I did everything I could possibly think of , Then I posted the question in the forum.

You have the IMEI ??!? Or it is lost?? Then only per efs-backup…
Or sim is broken…
Gesendet von meinem SM-G900F

lwiss said:
You have the IMEI ??!? Or it is lost?? Then only per efs-backup…
Or sim is broken…
Gesendet von meinem SM-G900F
Click to expand...
Click to collapse
I have imei , and sim is working fine, as I tested my sim in another phone.

uktel3315 said:
I have imei , and sim is working fine, as I tested my sim in another phone.
Click to expand...
Click to collapse
I'm having the same problem, but with G900H. I have stock firmware, rooted and everything's working fine until suddenly, I have no network. I restart the phone and get network again but only for a couple of minutes.
Sent from my SM-G900H using XDA Free mobile app

Any update?

XanoZuke said:
Any update?
Click to expand...
Click to collapse
Sry XanoZuke, I could not do anything to fix this, so I returned the phone and got another handset. I now have Exynos Octa-core version. Found snapdragon version is more power efficient. My phone gets heated very quickly.

uktel3315 said:
Sry XanoZuke, I could not do anything to fix this, so I returned the phone and got another handset. I now have Exynos Octa-core version. Found snapdragon version is more power efficient. My phone gets heated very quickly.
Click to expand...
Click to collapse
Don't worry, I found out that the motherboard was water damaged (the irony of life....), so a bought an LG G3.
Regarding the Exynos chip, I'm never buying anything exynos ever again. The performance is not as solid as Snapdragon and it gets heated really fast. Still, thanks for your reply! ?
Sent from my LG-D855 using XDA Free mobile app

uktel3315
Click to expand...
Click to collapse
So sad case remain unsolved, Got almost the same issue, Flashed 1st and last official firmware and custom rom without success NO NETWORK SIGNAL. No IMEI - Null regitered 15 zeros no efs backup etc.
Model : SM-G900S
ROM: XtrStoLite

edreab86 said:
So sad case remain unsolved, Got almost the same issue, Flashed 1st and last official firmware and custom rom without success NO NETWORK SIGNAL. No IMEI - Null regitered 15 zeros no efs backup etc.
Model : SM-G900S
ROM: XtrStoLite
Click to expand...
Click to collapse
have you found a solution yet? i have the exact same problem and have tried the same solutions as you listed...

have you found a solution yet? i have the exact same problem and have tried the same solutions as you listed...
Sorry i end up selling the phone as is..

Same deal
My g900f has no mobile services sims fine

I have the same problem.
Cannot connect to network after flashing new ROM. Since then I tried about 10 different original roms and couple custom roms. Number of different MODEMs and BOOTLOADERs but with no joy. SIM card works fine in different phone.
Also I tried to load different CERT files and QCN with Z3X Box but that didn't help either.
I've tried *#0011# command here are results:
with LTE/WCDMA/GSM auto-connect:
imgur.com/i69HCBM
with WCDMA only:
imgur.com/QPbvKHG
and GSM only:
imgur.com/8InhQWQ
It seems that GSM is not working at all.
At this stage I run out of ideas and probably gonna get rid of the phone as it is or use it as pimped-out ipod touch
(sorry for messed up links but I can't post to outside sites yet)

Help PLEASE!

Hello,
I bought a Samsung Galaxy S4 with 4G (used) and was everything working perfectly. However, to be used, restored factory settings to start used the S4. With that, my SIM card (however recognize other carriers) and did not recognize it, I tried to make the unlock / change firmware / ...
When trying to install a ROM of Brazil, Odin error, coincidentally checked on the mobile screen that had written SGH-I337, logo is a US S4, with I9500XXUGNG3 firmware (4.4.2 Russian). With that, I thought the ROM was blocking my SIN, it tried to install an original ROM that SGH-I337 model and upgrading to Android 5.0.1 Lollipop ... ROM came full of AT & T apps, and left me quite disappointed.
In short, I am with a horrible ROM and without using my SIM card (I'm thinking it's physical problem).
Can anyone help me restore / install a factory ROM, if possible, Lollipop? I'm trying to do one week and could not.
Already, thanks!
Sorry for the English, I'm using a translator.

Boot into download mode to find the real model number of your phone.

audit13 said:
Boot into download mode to find the real model number of your phone.
Click to expand...
Click to collapse
I had already reported it, but has to take this question .
It is a SGH- I337 . So I can only install roms the i337 AT & T ? Is there any clean rom ?
I already concludes the problem of my SIN card, is that the device 4g band is different from 4g Brazil , therefore, it does not recognize . But he recognizes the other SIN Card 3g Brazil . Will I have to buy a SIN Card 3g or if there is a possibility to change the band that s4 find my SIN card would be even better.
Remembering my S4 had a rom i9500

Before flashing anything else, install the Samsung phone info app to confirm the bootloader version in the phone.
If the bootloader is 4.3 or newer, the bootloader is locked and you cannot install twrp or cwm. You can install safestrap and flash custom Roms based on stock Samsung Roms.

audit13 said:
Before flashing anything else, install the Samsung phone info app to confirm the bootloader version in the phone.
If the bootloader is 4.3 or newer, the bootloader is locked and you cannot install twrp or cwm. You can install safestrap and flash custom Roms based on stock Samsung Roms.
Click to expand...
Click to collapse
well... follows the screen image
p rnt.sc/ce6za2

a question, i337 = i9505 ?

Nope, i337 and 9505 are slightly different as they support different frequencies and the bootloader on the 337 is locked.

audit13 said:
Nope, i337 and 9505 are slightly different as they support different frequencies and the bootloader on the 337 is locked.
Click to expand...
Click to collapse
The cool thing is that the i337 was this I9500XXUGNG3 firmware that had the ability to use Portuguese Brazil , I would like to return to this firmware. How I do? I tried by Odin but always of it :
<ID : 0/011 > sboot.bin
<ID : 0/011 > NAND Write Start!
<ID : 0/011 > FAIL !
do you have any idea?

The bootloader is locked so you can't install 9505 firmware on the i337.

audit13 said:
The bootloader is locked so you can't install 9505 firmware on the i337.
Click to expand...
Click to collapse
and 9500?

9500 does not use a Qualcomm processor.

audit13 said:
9500 does not use a Qualcomm processor.
Click to expand...
Click to collapse
which leaves me with great doubt is that it was with this I9500XXUGNG3 firmware stating it was a i9500 .
with this I tried to install android 5.0 thinking that manages to come unlock my SIM CARD and still not resolved . I think a matter of size or shape of the SIM card , seila . I have a lot of headache to solve this.

Do you flashed back to stock i337 firmware and it won't accept your SIM card unless you enter a network unlock code?

audit13 said:
Do you flashed back to stock i337 firmware and it won't accept your SIM card unless you enter a network unlock code?
Click to expand...
Click to collapse
I am currently using with another SIM CARD and runs regular without typing unlock code and whatever be 4.4.x as 5.0.
However the rom one that I managed to install this was " http://forum.xda-developers.com/showthread.php?t=2674223 " with root.
So I would like to set up a Stock ROM that was clean , without anything of AT & T , which before I had with I9500XXUGNG3 firmware (including Portuguese Brazil )

Did you put a pin on your sim? Did you enter the sim code too many times and the phone locked the sim?

audit13 said:
Did you put a pin on your sim? Did you enter the sim code too many times and the phone locked the sim?
Click to expand...
Click to collapse
no ...
Forget History sim card hahaha xD
Can you help me one installing a rom for this i337 without the AT & T ? Preferably a clean like that had previously , as i9500 .

The bootloader is locked on the i337 so you only flash ROMs using safestrap.
If you want to remove ATT apps, you'll have to root and use root explorer to delete them. You could also try Titanium Backup to remove apps.

CM14 Moto X Style (XT1572-Clark) ASIA Dual Sim: Problem with SIM detection

Hi guys, I'm facing a problem with CM14 SIM detection with this version of hardware.
If any developer can help, I'm happy to test any fix you can provide.
So, 'till now:
- Flash CW 14 from here: http://www.cyanogenmods.org/forums/topic/update-moto-x-pure-cm14-cyanogenmod-14-nougat-7-0-rom/
- I'm follow the steps of page and download the last build from here: https://androidfilehost.com/?w=profile&uid=95897840722645866 (cm-14.1-20161127-UNOFFICIAL-clark.zip)
- Clean install with TWRP;
- Factory reset; -> No sim detected
- Flash marshmellow modem from here: http://forum.xda-developers.com/mot...odem-flashable-modem-files-eu-single-t3297051 -> No sim detected
so that it is... just say a word and I'll try my best.
Thanks all,
N.

I can almost guarantee you will get no help without providing a logcat.

itslels said:
I can almost guarantee you will get no help without providing a logcat.
Click to expand...
Click to collapse
Go back to stock..
I had also faced this issues..
I flashed cm14.1 but no sim then i flashed the latest stock
By. http://www.filefactory.com/folder/dd05c058d3ff8dbe/?sort=filename&order=DESC&show=100
And then i flashed twrp again and then tried cm14.1 then boom.. it worked.... But its currently wip so im using du right now.....

itslels said:
I can almost guarantee you will get no help without providing a logcat.
Click to expand...
Click to collapse
can you provide some instructions on how to get the logcat?

Sagar_1401 said:
Go back to stock..
I had also faced this issues..
I flashed cm14.1 but no sim then i flashed the latest stock
By. http://www.filefactory.com/folder/dd05c058d3ff8dbe/?sort=filename&order=DESC&show=100
And then i flashed twrp again and then tried cm14.1 then boom.. it worked.... But its currently wip so im using du right now.....
Click to expand...
Click to collapse
what is your hardware variant? it is a dual sim phone?
and can you point me the exact stock rom you used?

noalter said:
what is your hardware variant? it is a dual sim phone?
and can you point me the exact stock rom you used?
Click to expand...
Click to collapse
Moto x style xt1572 dual sim retasia....
http://www.filefactory.com/file/66l...S24.107-58-1_cid7_subsidy-DEFAULT_CFC.xml.zip
This is that one which u need

Dual sim issues
Hy,
I have xt1575 and the phone has the dual sim tray and on the motherboard exist a dual sim circuit. I can activate only the first sim, the second one is inactive.
Can I flash the stock firmware from xt1572?
Thank you

Galaxy s7 edge weird issue?

Hy all! This is my first thread.
And so sorry for my english.
So I bought a galaxy s7 edge (g935f) from the internet and it has a lot of weird issue...first this phone is a single sim t-mobile (hungary) version, but the software says this is a dual SIM version (935FD) I flashed a full-wipe 4 file from with Odin but after that the problem is still there. If I go to the ONE I menu the first imei is the phone's own imei, but the second imei is just a lot of zeros.
My second problem is that the wireless connections doesn't works.
The Bluetooth can't find any BT devices and the Wi-Fi is recognize only the 5ghz networks.(2.4ghz networks are invisible)
Is it possible to get this phone back to normal?
Is it should work if I try to reinstall the phone with smart switch? That app is download firmware that is match with the phone original carriers Rom.
Thanks in advance.

If the phone is the dual sim one (SM-G935FD) flashing the BTU ROM from SM-G935F (single SIM model) or the INU ROM from the SM-G935FD, it'll detect the second SIM slot that also works as microSD card.
By detecting it, it seems you have an G935FD...
try flashing one of those ROM's I have mentioned above with ODIN and do full wipe of the phone.
That will probably solve everything
Sent from SM-G935FD using Tapatalk

Where did you get your phone from? Better return it...

Uzsidoboz20 said:
Hy all! This is my first thread.
And so sorry for my english.
So I bought a galaxy s7 edge (g935f) from the internet and it has a lot of weird issue...first this phone is a single sim t-mobile (hungary) version, but the software says this is a dual SIM version (935FD) I flashed a full-wipe 4 file from with Odin but after that the problem is still there. If I go to the ONE I menu the first imei is the phone's own imei, but the second imei is just a lot of zeros.
My second problem is that the wireless connections doesn't works.
The Bluetooth can't find any BT devices and the Wi-Fi is recognize only the 5ghz networks.(2.4ghz networks are invisible)
Is it possible to get this phone back to normal?
Is it should work if I try to reinstall the phone with smart switch? That app is download firmware that is match with the phone original carriers Rom.
Thanks in advance.
Click to expand...
Click to collapse
Download samsung phone info app from play store. Find all your phone info chipset etc . .if you have exynos chip flash btu firmware or if Qualcomm then flash t-mobile one as you said it's saying t-mobile.....
But if you can, return it because as you said bt and wifi issues.
......it could be possible if you flash seller don't accept return.

Anik49 said:
Download samsung phone info app from play store. Find all your phone info chipset etc . .if you have exynos chip flash btu firmware or if Qualcomm then flash t-mobile one as you said it's saying t-mobile.....
But if you can, return it because as you said bt and wifi issues.
......it could be possible if you flash seller don't accept return.
Click to expand...
Click to collapse
Phone info app says it is an exynos modell.
My original firmware Was TMH at this moment i use the superman nougat rom and the problem is still there. What's so special with that BTU rom?
I found one BTU rom (4file) in tsar3000.com but that rom is 6.0. Can i flash it?

Uzsidoboz20 said:
Phone info app says it is an exynos modell.
My original firmware Was TMH at this moment i use the superman nougat rom and the problem is still there. What's so special with that BTU rom?
I found one BTU rom (4file) in tsar3000.com but that rom is 6.0. Can i flash it?
Click to expand...
Click to collapse
Btu is samsung stock 7 firmware basically for Uk region it's available here on xda. Try to flash the full firmware and see if it's work for you or not. Also you can flash stock 935fd firmware.

CSC totally changed after flashing unlocked firmware

Ok so i flashed the firmware for the unlocked version and now my model number shows as SM-G950U1and all my bloat is gone which is good.
But the problem is that i live in india and i dont know whether my phone will support VOLTE or not??
Second thing is that my CSC is totally changed after flashing unlocked firmware it was before ATT/ATT/ATT but now it is G950U10YM1AQG2 which is totally weird, please someone tell me what affect will it do to my device??
Screenshot attached of CSC

parkarintl said:
Ok so i flashed the firmware for the unlocked version and now my model number shows as SM-G950U1and all my bloat is gone which is good.
But the problem is that i live in india and i dont know whether my phone will support VOLTE or not??
Second thing is that my CSC is totally changed after flashing unlocked firmware it was before ATT/ATT/ATT but now it is G950U10YM1AQG2 which is totally weird, please someone tell me what affect will it do to my device??
Screenshot attached of CSC
Click to expand...
Click to collapse
For Volte to work, you need to root your device (Phase 1 rooting, phase 2 updating to stock rom with root)
During second phase follow this https://forum.xda-developers.com/galaxy-s8+/how-to/how-to-volte-jio-india-carrier-usa-t3659238

nimms said:
For Volte to work, you need to root your device (Phase 1 rooting, phase 2 updating to stock rom with root)
During second phase follow this https://forum.xda-developers.com/galaxy-s8+/how-to/how-to-volte-jio-india-carrier-usa-t3659238
Click to expand...
Click to collapse
Will try and let u know