Unlocked T-mobile SM-G900F Network problems - T-Mobile Samsung Galaxy S 5

Hello Everyone,
I've tried searching for this issue in the forum, but nothing was close to what I was experiencing.
I have come across a used T-mobile galaxy s5 here in my country (Morocco), It's unlocked, but I don't know what kind of flashing operations this phone has undergone before falling into my hands.
The main issue is that the network connection is unstable, it drops every 15 minutes or so, and when I try to make calls I get the error message '' not registred to network "
The IMEI Number seems good, I'm running a stock t-mobile Rom (with all the software, and the t-mobile logo on boot) and I've update my firmware with samsung Kies. The issue is still there.
My main interrogation is what do I try now to make it work, it seems to me that the baseband needs to be patched or something like this to work with our local carrier (Itssalat al Maghrib) but I'm open to all of your suggestions.
Thank you very much for your help and time.

oussama.tali said:
Hello Everyone,
I've tried searching for this issue in the forum, but nothing was close to what I was experiencing.
I have come across a used T-mobile galaxy s5 here in my country (Morocco), It's unlocked, but I don't know what kind of flashing operations this phone has undergone before falling into my hands.
The main issue is that the network connection is unstable, it drops every 15 minutes or so, and when I try to make calls I get the error message '' not registred to network "
The IMEI Number seems good, I'm running a stock t-mobile Rom (with all the software, and the t-mobile logo on boot) and I've update my firmware with samsung Kies. The issue is still there.
My main interrogation is what do I try now to make it work, it seems to me that the baseband needs to be patched or something like this to work with our local carrier (Itssalat al Maghrib) but I'm open to all of your suggestions.
Thank you very much for your help and time.
Click to expand...
Click to collapse
What rom? I know stock rom, but what version? What modem? Need a little more info here....

AxAtAx said:
What rom? I know stock rom, but what version? What modem? Need a little more info here....
Click to expand...
Click to collapse
Product code : SM-G900FZKADTM
CSC CODE : DTM
Version number : LRX21T.G900FXXU1P0GC
Bootloader version : G900FXXU1P0GC
CSC version : G900FDTM1POG2
Baseband version : G900FXXU1POG1
Latest firmware : G900FXXU1POJ5/G900FDTM1POJ5/G900FXXU1BOJ1
Here are All the information I could gather about my phone, I think it's some kind of CSC issue. Also I've noticed that the IMEI I get in the device, is not the same i have behind the battery.
Thank you for your help

Related

[Q] Cannot connect to 2G/H+/3G Internet

I have flashed this firm:-
XWKL1
Firmware info
PDA:XWKL1
PHONE: DDKL1
Date: 13/12/2011
Android 2.3.6
INU (India): http://www.multiupload.com/7K8FL86IEQ
XWKL1 Stock Kernel: http://www.multiupload.com/LSO4P572C9
Password: [email protected]
with speedmod kernel.
(I should have flashed JPKJ2 gb 2.3.5 firmware, but because its outdated, flashed the kl1 2.3.6 instead)
My problem is that i cannot access the 2g or 3g internet. I have the jKay mod which turns the signal icons to green. but they dont. they just come on (grey) but dont connect.
I called the operator many times to install the settings. but still no help.
If anyone in uae, can u confirm theres a gb 2.3.6 for uae?
any advice?
I recently bought a samsung Galaxy Y, and this had 2.3.6 xxkk(?) firmware with arabic support. Can any UAE user confirm that there is a 2.3.6 official update for galaxy s2?
ProNewb said:
I have flashed this firm:-
XWKL1
Firmware info
PDA:XWKL1
PHONE: DDKL1
Date: 13/12/2011
Android 2.3.6
INU (India): http://www.multiupload.com/7K8FL86IEQ
XWKL1 Stock Kernel: http://www.multiupload.com/LSO4P572C9
Password: [email protected]
with speedmod kernel.
(I should have flashed JPKJ2 gb 2.3.5 firmware, but because its outdated, flashed the kl1 2.3.6 instead)
My problem is that i cannot access the 2g or 3g internet. I have the jKay mod which turns the signal icons to green. but they dont. they just come on (grey) but dont connect.
I called the operator many times to install the settings. but still no help.
If anyone in uae, can u confirm theres a gb 2.3.6 for uae?
any advice?
I recently bought a samsung Galaxy Y, and this had 2.3.6 xxkk(?) firmware with arabic support. Can any UAE user confirm that there is a 2.3.6 official update for galaxy s2?
Click to expand...
Click to collapse
Check your APNs to see if they changed or got wiped out?
ctomgee said:
Check your APNs to see if they changed or got wiped out?
Click to expand...
Click to collapse
Yep, they are still there.
I installed new one by calling the helpline. they told me to restart my phone afterwards. i did, but still cannot connect.
Is it possible that marketenabler app is causing the problem? i know that when you switch sim ids (from local to US etc) u cannot connect 3g.
but even if i try to connect with local sim id it does not connect
Man, just Google for your provider apn details for android. As far as I know 3g etc should work the same on all firmwares unless your phone is not the international version.
I have the i9100t which has a different modem. When I flash any rom I reflash just the modem and all is good again. But first make sure your apn is correct and you have selected it (should have the green dot beside it).
Sent from my GT-I9100
Hi all,
First time poster, long time follower!!
I'm hoping someone can help me here because i have a real headache with my galaxy s2. I live in Rep. of Ireland.
When i got it at Christmas everything was perfect. But two weeks later i suddenly lost my 3g. Phone works fine on 2g (except for the slow speed), but i contacted my carrier 3Ireland and they said everything is fine on their end. My APN is perfect, i've tried toggling airplane mode, entering codes, data package checks. You name it and i've tried it.
When i force my phone to select 3g it looses all signal and i have to restart my phone and quickly go back into settings to choose 2g or i will loose signal again.
This is the following on my phone.
Android version 2.3.5
Baseband version I9100XXKI4
Kernel Version [email protected] #2
Build number GINGERBREAD.XWKI8
I've being reading about modem/radios lately, is that just the baseband? Could that be my problem. I'm a noob at this kinda thing.I just want my 3g to come back.
All help is greatly appreciated. Look forward to hearing from you all.
Thanks.
ProNewb said:
Yep, they are still there.
I installed new one by calling the helpline. they told me to restart my phone afterwards. i did, but still cannot connect.
Is it possible that marketenabler app is causing the problem? i know that when you switch sim ids (from local to US etc) u cannot connect 3g.
but even if i try to connect with local sim id it does not connect
Click to expand...
Click to collapse
sxi200 said:
Man, just Google for your provider apn details for android. As far as I know 3g etc should work the same on all firmwares unless your phone is not the international version.
I have the i9100t which has a different modem. When I flash any rom I reflash just the modem and all is good again. But first make sure your apn is correct and you have selected it (should have the green dot beside it).
Sent from my GT-I9100
Click to expand...
Click to collapse
sxi200 makes an excellent point. Make sure what your model is - GT-I9100, GT-I9100G, GT-I9100T - it WILL make a difference.
ctomgee said:
sxi200 makes an excellent point. Make sure what your model is - GT-I9100, GT-I9100G, GT-I9100T - it WILL make a difference.
Click to expand...
Click to collapse
I have tried everything u all said.
made sure it is i9100 and not T or G.
Now i am going to downgrade to 2.3.5 to jpkj2. my final option.
anything i should know about?
ProNewb said:
I have tried everything u all said.
made sure it is i9100 and not T or G.
Now i am going to downgrade to 2.3.5 to jpkj2. my final option.
anything i should know about?
Click to expand...
Click to collapse
Because I've flashed an international firmware, when the phone boots up it shows i9100 and in settings / about phone it also shows i9100.
The only place it shows as an i9100T is on the sticker under the battery. So remove the battery and check just in case.
EDIT: you say you flashed an Indian firmware. Aren't Indian models the i9100G. Maybe you need to flash the international firmware if you indeed have an international model.
Sent from my GT-I9100
sxi200 said:
Because I've flashed an international firmware, when the phone boots up it shows i9100 and in settings / about phone it also shows i9100.
The only place it shows as an i9100T is on the sticker under the battery. So remove the battery and check just in case.
EDIT: you say you flashed an Indian firmware. Aren't Indian models the i9100G. Maybe you need to flash the international firmware if you indeed have an international model.
Sent from my GT-I9100
Click to expand...
Click to collapse
Well, i did go back and flash the jpkj2 2.3.5. and still no connection.
will try from an open place again later.
i have an issue with my internet connection too. i got an I9100(international version) and things were perfect till i switched to 4.0.3 and since then, my internet just refuses to connect although i have full signal strength and 3G or H displayed. but there is nothing going through.
it works again after i switch to airplane mode and back. i have no issues with wifi.
i have tried many modems and roms. i am currently using the KI4 rom and it still gives me issues.
please help.
update on situation
Hi guys,
just an update on my situation. Had the phone sent to Samsung twice for a check and bothe times it came back perfect with test sheets showing all was perfect. I decided to have another check done on the phone and it now says that the phone is blocked!! What the hell!. When i checked first weeks ago all was good and now it says it's blocked, but i'm getting 2g signal, surely i should be getting nothing if it's barred.
I have no idea who the origional service provider was of the phone, is there any way of finding out who the origional provider was or is there any way of removing this barring?
Thanks

[Q] No Network in Galaxy GT I9300 After Odin flash

Hi Everyone,
I know there are a few thread around with the same purpose, but nothing helped me. I even did ping few members who claimed to have known the problem, to my bad, they are busy to reply me. So i thought i would start a new thread explaining my problem.
I got a new Galaxy GT I9300 Before 3months in Singapore, The shop is famous for selling smuggled phones, so i am not sure to which country mine belongs to. There was no network initially, so the shopkeeper offered his help, He gave the mobile to a nearby service centre and got it ready,
I am not sure what he did, but d phone had CWM and Super User. I already own a Galaxy S2 and i have done a lot of flashing Custom MOD's, So i wanted my Galaxy S3 to be original for a while. So i tried to restore by flashing a official firmware, To my surprise the phone didnt have any network in it after the ODIN flash. I tried an INDIAN firmware, then Singapore.
I tried CWM (which i am not a pro) but couldn get back the network. I went back to the service centre and he told some files are corrupted since i flashed the phone with official firmware.
He again flashed it, now the network works, voila ! I couldn figure out and he wouldn tel me. ****ing $40 !!! The phone had CWM and SuperUser installed in it again.
The phone had the following information after wat ever he did.
IMEI - 3531*********99 it is same in d board and in the phone information.
MODEL NUMBER - GTI9300
ANDROID VERSION - 4.0.4
BASEBAND VERSION - I9300DXLE9
KERNEL VERSION - 3.0.15-611327-USER SE [email protected] -71 #1SMP PREEMPT TUE MAY 22 21:54:17KST 2012
BUILD NUMBER - IMM76D.I9300XXALEF
NETWORK - SINGTEL
SERVICE STATE - IN SERVICE
MOBILE NETWORK STATE - DISCONNECTED
MY PHONE NUMBER - UNKNOWN
ERI VERSION - N/A
IMEI SV - 01
SERIAL NUMBER - 000000000000
DEVICE STATUS - MODIFIED
Can anyone please infer on what the service guy had done. so that i can update my phone to JB. I am sick and bored of the same firmware for over 4 months and i wanna change it. But i dont want to get struck in the same issue. Please help and advance thanks !
I am afraid you had bad luck
1. You should NEVER pay for stuff that does not work (and is not with original firmware).
2. You should also read this - it is almost certainly the same story (in your case SN 00000000 should also give a strong clue things are not what they should):
http://forum.xda-developers.com/showpost.php?p=34226179
3. Since whoever f***ed those things the first time on your phone did not make an efs image-backup you can never return to factory state!
4. You are basically stuck with a phone where you will have to apply a patched modem after each ROM upgrade.
when you say patched modem what do you mean.?
Patched modem ???
When u say patched modem, can u explain tat ? Is it possible to create one by ourself ?
xclub_101 said:
1. You should NEVER pay for stuff that does not work (and is not with original firmware).
2. You should also read this - it is almost certainly the same story (in your case SN 00000000 should also give a strong clue things are not what they should):
http://forum.xda-developers.com/showpost.php?p=34226179
3. Since whoever f***ed those things the first time on your phone did not make an efs image-backup you can never return to factory state!
4. You are basically stuck with a phone where you will have to apply a patched modem after each ROM upgrade.
Click to expand...
Click to collapse
Well ...
santhoshkcsk said:
When u say patched modem, can u explain tat ? Is it possible to create one by ourself ?
Click to expand...
Click to collapse
A patched modem apparently is modem code that does not check all the stuff in the efs partition (for instance when SN is 00..00) - I am currently using the one posted by ariza somewhere around. Patching one might be quite complex and for the moment I did not have the time to research that. The only problem that I see is that certain providers are said to be using very unusual modem code (since they have unusual settings in their own network) - and in that case you need to use a patched version of that specific modem version - but so far I have not seen that happening in a very repeatable way in posts from european networks.
The other problem is that when you install any full ROM (for instance 4.1.2) that will overwrite your modem - so you will have to re-install the old patched modem (so far ariza_v04.zip seems to work OK with 4.1.2 on my operator's network).
Serial no 000000...
Thousands of Thanks man, I have been facing the same problem from last few days after flashing cwm6 and UltraRom. hi can you please suggest me an modem for Samsung Galaxy s3 I9300 Indian version.
AP: I9300XXALE8
CP: I9300XXLE8
CSC: I9300DBTALE5

[Q] samsung gt-n7105

Hi i have a samsung note2 (gt-n7105) the hong kong version i wanted to know if there is a way to change everything to the english software as im have problems with signal witch i have been told could be the modem files but i do not know how to change them i have managed to root my phone from help from your forums i have been told that the modem file could make the signal strenth to be bad and give call drops out and not registed on network
i have all ready checked the phone is not blacklisted
If any one can help i wouls be very gratefull
83chowe said:
Hi i have a samsung note2 (gt-n7105) the hong kong version i wanted to know if there is a way to change everything to the english software as im have problems with signal witch i have been told could be the modem files but i do not know how to change them i have managed to root my phone from help from your forums i have been told that the modem file could make the signal strenth to be bad and give call drops out and not registed on network
i have all ready checked the phone is not blacklisted
If any one can help i wouls be very gratefull
Click to expand...
Click to collapse
Rather than flashing just the modem, it is better to flash a full firmware. Download an official (possibly 4.4.2 now it is released?) firmware from sammobile or other relevant websites, back up your data, and then flash via Odin. You can always try other firmwares to check for better signals.
Cheers

[Q] Galaxy s3 model...sgh-m909??? Tmobile

Bought this samsung galaxy s3 on ebay. It was listed as Tmobile model sgh-t999. but after i received it I noticed the model number is sgh-m909. Icant find this model number anywhere. I dont know how to root it. It has been modified before and I keep getting the nfortunately, com.sec.androidapp.FlashBarService has stopped...every time i recieve a call. I would like to root this phone and start anew but cantfind any info on this particular model. Any ideas??? Thanks
papajo247 said:
Bought this samsung galaxy s3 on ebay. It was listed as Tmobile model sgh-t999. but after i received it I noticed the model number is sgh-m909. Icant find this model number anywhere. I dont know how to root it. It has been modified before and I keep getting the nfortunately, com.sec.androidapp.FlashBarService has stopped...every time i recieve a call. I would like to root this phone and start anew but cantfind any info on this particular model. Any ideas??? Thanks
Click to expand...
Click to collapse
http://www.tmonews.com/tag/m909/
But that's pretty much the only reference I've found. The firmware isn't listed on sammobile.com nor any other info. Might be risky to root without having the firmware available. Can you post the other info like build version, baseband version, etc?
But that's pretty much the only reference I've found. The firmware isn't listed on sammobile.com nor any other info. Might be risky to root without having the firmware available. Can you post the other info like build version, baseband version, etc?[/QUOTE]
I no longer have access to that info. I went to far with the rooting flashing attemtps and now get the "Firmaware upgrade encountered an issue.Please select recovery mode in keys and try again. w/yellow triangle. Im a ...Kies doesnt connect to device...it tries for a while with no luck.
papajo247 said:
But that's pretty much the only reference I've found. The firmware isn't listed on sammobile.com nor any other info. Might be risky to root without having the firmware available. Can you post the other info like build version, baseband version, etc?
Click to expand...
Click to collapse
I no longer have access to that info. I went to far with the rooting flashing attemtps and now get the "Firmaware upgrade encountered an issue.Please select recovery mode in keys and try again. w/yellow triangle. Im a ...Kies doesnt connect to device...it tries for a while with no luck.[/QUOTE]
Yea...It's risky to try and mod a phone that you don't know what it is or even if there is firmware available. Think you're in for a long road to recovery if it is possible at all... I'm pretty certain it's not an S3 though, unless it was a special demo model. I've seen or read about every other variant of the S3 and have never heard or seen this model anywhere. There are only 2 S3 T-Mobile variants - t999 and t999l.
Thanks for your help Just have to make the best of it.

T820 - device has been flashed with unauthorized software and is locked - SOLVED

I'm not a newbie to flashing ROMs but I am for flashing ROMs to my T820. I was following some instructions and something went horribly wrong. The ONLY thing I'm able to get into is the downloader (pwr+vol-dwn+home). I've gone through some threads about needing to re-flash stock image using Odin. So my question is, is re-falshing stock ROM the answer to this issue? And if so, where can I find a stock ROM for T820. I've looked through all kinds of threads and other sites looking for it and can't find it. I've tried using SamFirm but being as I can't get into my tablet I don't know the CSC/Region to use; and sidebar, it always says unauthorized anyway regardless of what region I put in the form. Does anyone have any advice to get me up and running? I started down this process because I had finally had it with the poor performance after a 2019 update and thought I'd try to give another ROM a try. Now I'd be happy to get back to my poor performing tablet.
gregchak said:
I'm not a newbie to flashing ROMs but I am for flashing ROMs to my T820. I was following some instructions and something went horribly wrong. The ONLY thing I'm able to get into is the downloader (pwr+vol-dwn+home). I've gone through some threads about needing to re-flash stock image using Odin. So my question is, is re-falshing stock ROM the answer to this issue? And if so, where can I find a stock ROM for T820. I've looked through all kinds of threads and other sites looking for it and can't find it. I've tried using SamFirm but being as I can't get into my tablet I don't know the CSC/Region to use; and sidebar, it always says unauthorized anyway regardless of what region I put in the form. Does anyone have any advice to get me up and running? I started down this process because I had finally had it with the poor performance after a 2019 update and thought I'd try to give another ROM a try. Now I'd be happy to get back to my poor performing tablet.
Click to expand...
Click to collapse
Sorry to hear that.
A stock reflashing should help, but of course I can't guarantee that.
The original Samfirm isn't working any more.
You have to take samfirm_reborn0.3.6.2.
As you don't write where you're from I can't recommend a region.
Do you know this site: https://www.sammobile.com/samsung/galaxy-tab-s3/firmware/#SM-T820 as well?
bmwdroid said:
As you don't write where you're from I can't recommend a region.
Click to expand...
Click to collapse
I'm in USA. I didn't see anything on the SamsungMoblie.com site for USA. Any ideas what the region would be?
Appreciate the advice. I downloaded the version of SamFirm you linked and it does seem to work as expected using a known region value.
gregchak said:
I'm in USA. I didn't see anything on the SamsungMoblie.com site for USA. Any ideas what the region would be?
Appreciate the advice. I downloaded the version of SamFirm you linked and it does seem to work as expected using a known region value.
Click to expand...
Click to collapse
What about Canada?
US should be more like them imo
Or cellular south I read somewhere might work as well.
bmwdroid said:
What about Canada?
US should be more like them imo
Or cellular south I read somewhere might work as well.
Click to expand...
Click to collapse
Here's question, does it matter what CSC I use? I get it probably has implications for the cell version (T825 I think?), but for the wifi version is it needed? Could I use any English firmware? The only CSC codes I could find related to USA were ones bound to a carrier. I also found a few "unknown" CSC codes. Any idea what those are for?
@gregchak by searching the net for you I've found these two:
List of Samsung Galaxy CSC Country Specific Product code and region they belong to
List of CSC Country Specific code for Samsung Galaxy & various countries, regions, network carriers, model numbers, variants phone belong to.
www.androidsage.com
Samsung CSC Codes List For All Countries | iHax
Here is the complete Samsung CSC Codes list of all the regions and carriers. The Samsung Country Sepcific Codes list should help you identify the right firmware for your device.
ihax.io
In the past I thought like you that it doesn't matter, but I've realized after searching there are differences in Wifi frequencies/channels in the world.
idk how much the CSC interacts with Wifi.
So it might be ok, but idk exactly.
Btw doesn't it say anything on the T820 packing.
Unfortunately the packaging has long since been thrown out. I bought this tablet about 3-4 years ago. I tried a few different CSC codes that might work. XAR is apparently what worked for me. I was able to get that image installed via Odin and I'm back up and running. I really appreciate your help!
I followed the documentation I could find for getting the CSC from the settings app on my tablet but it says to look for it under Settings -> About Tablet -> Software Information -> Service Provider Software Version section. I don't have such a section. Also, being a tablet, I can't use the phone dialer method either. Do you know what the method is to get the CSC from settings? Or is there another way?
gregchak said:
...... Do you know what the method is to get the CSC from settings? Or is there another way?
Click to expand...
Click to collapse
You could try PhoneINFOsam or HW info, but they need root what you probably don't have any longer, or do you?
Imo as you flashed XAR that should be its CSC (now)
@gregchak and I just found/remembered that:
Download mode shows your original Country code, no matter what CSC you flash
btw. it may be helpful for others if you edit your thread title and add "solved"
bmwdroid said:
@gregchak and I just found/remembered that:
Download mode shows your original Country code, no matter what CSC you flash
btw. it may be helpful for others if you edit your thread title and add "solved"
Click to expand...
Click to collapse
Good point about the title. I edited as you mentioned.
I tried booting into download mode but I don't see any CSC codes noted there. It looks like what I posted pics attached to my original post. The documentation I had read previously said that it is noted in download mode under the carrier section. But since my tablet is WiFi only I don't have a carrier section displayed in download mode.
@gregchak I suspected that, but it might have worked.
Another chance is the serial number perhaps.
But as there will be no more OTA updates published by Samsung it's not really necessary to know the former CSC.
Btw the app PhoneInfoSAM is telling me the original CSC on my WIFI P900.

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