Database Users

[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)

[Q] N9005 "Not registered on network" after regional unlock. PLEASE HELP!

Good day, I have N9005 from UK but Iam from Middle East.
Because code for regional unlock doesn't work for me I gave my phone to the phone lab where they just changed my IMEI. After that everything was fine, until I decided to flash another rom (Knox already 0x1,so its doesn't matter).
Because I want new Modem I flashed first last Finland 4.4.2 and after that custom rom and changed cellular operator and sim card.
Now I see "Not registered on network" on Note 3 when on my N7100 this sim works perfect.
In Download Mod I have this info (attached).
What I should do now? I tried to find info about it, but nothing.
Thanks in advance for any help.

Shigaon said:
Good day, I have N9005 from UK but Iam from Middle East.
Because code for regional unlock doesn't work for me I gave my phone to the phone lab where they just changed my IMEI. After that everything was fine, until I decided to flash another rom (Knox already 0x1,so its doesn't matter).
Because I want new Modem I flashed first last Finland 4.4.2 and after that custom rom and changed cellular operator and sim card.
Now I see "Not registered on network" on Note 3 when on my N7100 this sim works perfect.
In Download Mod I have this info (attached).
What I should do now? I tried to find info about it, but nothing.
Thanks in advance for any help.
Click to expand...
Click to collapse
To unlock your phone may they flashed Super IMEI now after you change ROM may it replaced with original IMEI or Generic, I think u need to go that shop again to flash Super IMEI, look at below link.
http://forum.xda-developers.com/showpost.php?p=50669735&postcount=8

jdomadia said:
To unlock your phone may they flashed Super IMEI now after you change ROM may it replaced with original IMEI or Generic, I think u need to go that shop again to flash Super IMEI, look at below link.
http://forum.xda-developers.com/showpost.php?p=50669735&postcount=8
Click to expand...
Click to collapse
Thanks, I will try. One question, if its work with adb, I can't do this on PC?

Shigaon said:
Thanks, I will try. One question, if its work with adb, I can't do this on PC?
Click to expand...
Click to collapse
No, Its required SPT Box.

[Q] Baseband Version: Unknown + No Network

Hello guys,
I got a Galaxy Note 4 SM-N910F (Retail Unit) from a friend, I flashed a stock ROM to get rid of the Retail Mode but now I have Baseband Unknown and No Network. Is there a way I can fix this and use the device Normally??
I would really appreciate any help..
Edit 1: The Phone IMEI Number via *06# shows Null Null and under about phone, IMEI Number is also unknown.

masaichris said:
Hello guys,
I got a Galaxy Note 4 SM-N910F (Retail Unit) from a friend, I flashed a stock ROM to get rid of the Retail Mode but now I have Baseband Unknown and No Network. Is there a way I can fix this and use the device Normally??
I would really appreciate any help possible.
Click to expand...
Click to collapse
If you sure you have right firmware for you're Note 4 "910F" flash again with Odin!
Set Odin by default! Tick not RE Partition and so on!
Regards
Sonic76

masaichris said:
Hello guys,
I got a Galaxy Note 4 SM-N910F (Retail Unit) from a friend, I flashed a stock ROM to get rid of the Retail Mode but now I have Baseband Unknown and No Network. Is there a way I can fix this and use the device Normally??
I would really appreciate any help possible.
Click to expand...
Click to collapse
Demo units has different hardware & software.

jdomadia said:
Demo units has different hardware & software.
Click to expand...
Click to collapse
Does that mean it cant be used normally with a SIM Card, just Wifi or is there a way I can get it to work?

masaichris said:
Does that mean it cant be used normally with a SIM Card, just Wifi or is there a way I can get it to work?
Click to expand...
Click to collapse
You have an app "Samsung Retailmode" in your appdrawer?
So open Configuratin Settings in this app, than you have to enter Admin Passwort! Enter 1. Password : 5444
After this disable the factory...... here you need second password! 2. Password : M729Q16K8546
After this check reset and reboot! Hope that helps!?
Regards
Sonic76

sonic76 said:
You have an app "Samsung Retailmode" in your appdrawer?
So open Configuratin Settings in this app, than you have to enter Admin Passwort! Enter 1. Password : 5444
After this disable the factory...... here you need second password! 2. Password : M729Q16K8546
After this check reset and reboot! Hope that helps!?
Regards
Sonic76
Click to expand...
Click to collapse
I already removed the Retail Mode App from the phone and flashed a stock ROM, but I cant get the SIM card to work and access mobile Networks (Baseband Version: Unknown). I would like to fix that and get it working normally, (maybe flashing some different Modem or Mod to enable network access) but I don't know what to flash or how to do it. :crying:

masaichris said:
I already removed the Retail Mode App from the phone and flashed a stock ROM, but I cant get the SIM card to work and access mobile Networks (Baseband Version: Unknown). I would like to fix that and get it working normally, (maybe flashing some different Modem or Mod to enable network access) but I don't know what to flash or how to do it. :crying:
Click to expand...
Click to collapse
I know only the method with Unlock from RetailMode App!
Maybe it works when you flash Retail Firmware/ Install Retail Mode app and try it with the passwords above?
You can download retail mode app from playstore!
if you have a live demo unit you'll never can get it work, so there's no hardware (modem) inside
regards
Sonic76

masaichris said:
I already removed the Retail Mode App from the phone and flashed a stock ROM, but I cant get the SIM card to work and access mobile Networks (Baseband Version: Unknown). I would like to fix that and get it working normally, (maybe flashing some different Modem or Mod to enable network access) but I don't know what to flash or how to do it. :crying:
Click to expand...
Click to collapse
What stock ROM did you use to flash, and what is your device's info?
Can you show the device's info with this Phone INFO ★Samsung★ app?

vndnguyen said:
What stock ROM did you use to flash, and what is your device's info?
Can you show the device's info with this Phone INFO ★Samsung★ app?
Click to expand...
Click to collapse
Modem Hardware (Nothing)

masaichris said:
Modem Hardware (Nothing)
Click to expand...
Click to collapse
I just found out I have exactly the same device = tablet. I'm kind of dissapointed.... ;crying: Can I at least sell it for spare parts? If not I'll just use it as a tablet. I was cheated by the seller. he didn't say anything. Great app btw. will use it from now on...

masaichris said:
Modem Hardware (Nothing)
Click to expand...
Click to collapse
As you can see in the screenshot, there is no info about Modem Board, so I doubt it does not have modem hardware (?).
Can you show me all screenshots from that app? (you can use S Pen to capture screenshot easily).
And also can you show a picture of the back sticker (behind the battery).
Thanks.

Nothing ?

Same thing happened to me too,but before that I had a fully functionaly phone.After I flashed many custom roms ended in bootloop and only a stock rom NEE 5.0.1 works,all other stock rom I flash ends in bootloop.And baseband unknown,imei null,no modem.

I think from Note 3 onwards, samsung has choosen to make separate hardware for its demo devices. In some specific models even the AMOLED panel also is unique and can't be used with other devices. I am currently working with samsung. Earlier we were using these demo devices for personal use and for spare parts. Right now it's good for nothing other than playing games and surfing Internet.

Purchased a S5, can you please identify the Model number?

I am very confused, Item is a refurb, has been rooted and therefore i want to put a clean stock rom on it, however i am getting mixed signals. phone is labelled g900f on the sticker and about phone, however i think this is fake, so the seller could sell it as a British model, I went in to recovery, the boot-loader stated it was a g900t. Also in the settings / about / there is a section referring to The united Emirates, which i have not ever seen before. I do believe it is a real s5 though as it has a snapdragon processor. Also the Imei number and serial number match the sticker, however i have a feeling this was somehow done by the seller, or who ever is supplying the seller who sold it to me. Other than that phone is working fine, but does not receive OTA updates. Also for some reason in the Ringtone section there are some built in AT&T ones.
can someone try to make sense of this, and tell me which exact Official ROM i would need to use.
Thanks.

G900T is American T-Mobile version

tigger69 said:
G900T is American T-Mobile version
Click to expand...
Click to collapse
does anyone know why there is a UAE section if this is supposed to be a American phone? also is this a At&t or tmobile original?

Whichever model is says in download mode is the correct model
A lot of models are modded to look like G900Fs as they are one of the most popular models, firmware, stickers etc etc can all be changed, Download mode can't be changed

thanks for the reply. if i reflash to a clean g900t marshmallow, what is the likelyhood it will corrupt the imei , network unlock status or anything like that, also will a g900t rom work fine in the Uk, i read on xda the g900t rom contains alot of branding and junk, can anyone confirm this?
thankyou

kuljit55 said:
thanks for the reply. if i reflash to a clean g900t marshmallow, what is the likelyhood it will corrupt the imei , network unlock status or anything like that, also will a g900t rom work fine in the Uk, i read on xda the g900t rom contains alot of branding and junk, can anyone confirm this?
thankyou
Click to expand...
Click to collapse
Try it, as it seems to be a 900T, i would have to assume it will be ok.

S10+ Live Demo Units have network capabilities. I think.

Ok so this is weird(I think)
Ok so I acquired an S10 LDU and firstly to clear up any confusion, my father owns a retail store that sells mobile phones. We got in Galaxy S10 LDU’s from the network supplier that we provide in store.
I study computer science so naturally I’m intrigued by new phones and decided to have a closer look.
I wanted to test out the in Display fingerprint sensor so proceeded to flash to phone.(LDU’s prevent using screen lock features). It took some time but eventually I got the device to flash. It’s now running the stock firmware for G975F/DS. (I installed dual sim by accident but anyway.)
So this is where things get weird, it sais put in SIM so I just said why not. Then it detects the SIM card and can read the phone number of it. I proceed to checking baseband and it seems to have one(going by the software). So now I’m confused?
Is it possible that there is no baseband and it only shows it because I flashed a firmware on it(I flashed the BL, AP, CSC and the fourth one, can’t remember the name.) Seeing as one of these tar files is for the modem could it of just installed the baseband version on the device without there actually being any basebands/network capabilities on the phone?
The same way that it shows dual sims even though the phone is single sim?
OR
Did Samsung include basebands in its demo units?
Is there any concrete way I can check this without having to take the phone apart?
For anyone wondering the IMEI’s show 0000000000

Very interesting, people in other posts also reported funny things going on w/Odin flashes. Some sort of a software mismatch.

I have a demo version of the s10 + and like you flashed the stock rom, it has recognized the fingerprint on the screen and all the functions, and it recognizes me as the double sim version, it recognizes me the sim and the number of it, but it comes out imei 000000, my doubt is that they have blocked the network by software or hardware, a few months ago I saw a video of a s6 demo vs s6 normal and they have disconnected the network card

I have a s10e live unit demo and I have a imei 0000000 but the phone info apk find a modem and modem version inside the phone. Samsung inclued a bad imei in the version of galaxy!?

I have s10 ldu also i already wrote imei also. Sim card detects but signal strength very low. -113dbm 0asu. Showing network provider also

kasunglogle said:
I have s10 ldu also i already wrote imei also. Sim card detects but signal strength very low. -113dbm 0asu. Showing network provider also
Click to expand...
Click to collapse
how did you change the imei?

Bolocarmine said:
how did you change the imei?
Click to expand...
Click to collapse
Online

kasunglogle said:
Online
Click to expand...
Click to collapse
I edit several things and files with root and sometimes it detects the operator of the sim and it goes out in the notifications bar when I download it but it does not give me a signal, I have not managed to change the imei, you? gives you a signal
---------- Post added at 07:07 AM ---------- Previous post was at 07:04 AM ----------
kasunglogle said:
Online
Click to expand...
Click to collapse
once, wanting to see the imei dial a number and the cell phone frame everything went out the call menu, but the cell phone was augmented like a lag, and afterwards it did not stop doing it again it went out mobile network not available

S10 live demo flash files
Hi, I owned a s10 live demo, I want the flash files to remove the demo version, can anyone refer me the links?

kasunglogle said:
Online
Click to expand...
Click to collapse
how how how how how? please tell me i need it
---------- Post added at 08:36 PM ---------- Previous post was at 08:35 PM ----------
Kavindu1446 said:
Hi, I owned a s10 live demo, I want the flash files to remove the demo version, can anyone refer me the links?
Click to expand...
Click to collapse
What is its variant?

Colmdave said:
Ok so this is weird(I think)
Ok so I acquired an S10 LDU and firstly to clear up any confusion, my father owns a retail store that sells mobile phones. We got in Galaxy S10 LDU’s from the network supplier that we provide in store.
I study computer science so naturally I’m intrigued by new phones and decided to have a closer look.
I wanted to test out the in Display fingerprint sensor so proceeded to flash to phone.(LDU’s prevent using screen lock features). It took some time but eventually I got the device to flash. It’s now running the stock firmware for G975F/DS. (I installed dual sim by accident but anyway.)
So this is where things get weird, it sais put in SIM so I just said why not. Then it detects the SIM card and can read the phone number of it. I proceed to checking baseband and it seems to have one(going by the software). So now I’m confused?
Is it possible that there is no baseband and it only shows it because I flashed a firmware on it(I flashed the BL, AP, CSC and the fourth one, can’t remember the name.) Seeing as one of these tar files is for the modem could it of just installed the baseband version on the device without there actually being any basebands/network capabilities on the phone?
The same way that it shows dual sims even though the phone is single sim?
OR
Did Samsung include basebands in its demo units?
Is there any concrete way I can check this without having to take the phone apart?
For anyone wondering the IMEI’s show 0000000000
Click to expand...
Click to collapse
resolved?

contact me whatsapp +940703082155

kasunglogle said:
contact me whatsapp +940703082155
Click to expand...
Click to collapse
i send a message

erwinkx said:
i send a message
Click to expand...
Click to collapse
Did kasungogle help u??

Good morning kasunglogle, I have a s10 demo unit, already flashed to an original stock rom, true that detects the sim, imei 000000 ...
Could you tell me what steps do you do to give imei to the mobile?

tato135 said:
Good morning kasunglogle, I have a s10 demo unit, already flashed to an original stock rom, true that detects the sim, imei 000000 ...
Could you tell me what steps do you do to give imei to the mobile?
Click to expand...
Click to collapse
i want to know it too, do you know how can we do it?

tato135 said:
Good morning kasunglogle, I have a s10 demo unit, already flashed to an original stock rom, true that detects the sim, imei 000000 ...
Could you tell me what steps do you do to give imei to the mobile?
Click to expand...
Click to collapse
writing imei's to LDU's is borderline not allowed lol.. seeing as how they dont come with them you would need to obtain an imei from somewhere which in some places is even illegal.
also, i believe it does have some capability but after flashing my g975u to g975xu i was not able to enable mobile features.. flashing back to g975u mobile features worked again...
also, i noticed while on xu firmware the device is shown as a wifi only device.. this cannot be changed without some form of root im afraid so i dont think mobile services while on xu is possible..
on the other hand though, an ldu on U firmware should in theory work if you managed to somehow (wont discuss methods here) write the imei and other network related info...
to add, it wiped my efs.. but luckily that didnt kill my imei or anything as i believe it is stored elsewhere and is protected.. of course if anyone tries and has other issues then i am not responsible lol

friend the solution to our problems here samgurus com s10 CPID work

JounesLKS said:
friend the solution to our problems here samgurus com s10 CPID work
Click to expand...
Click to collapse
IMEIGurus has tools to write the imei yourself

S10+ demo unit
Hi I’ve got a s10+ live demo unit and looking to get it out of retail mode. Any suggestions thanks