No cellular data after rom flash. - Samsung Galaxy J7 Questions & Answers

I made a mistake, I'm using the Samsung Galaxy j7 j700m. I flashed the A5 port rom that's in the rom development section here. After that I lost cellular data, no data connection, calls or text. No service at all. So I went back to twrp restored the backup I made before I flashed the A5 rom. My cell connection is still gone. WiFi connection and everything is fine, just no cellular connection at all. How can I fix this?

Download stock rom file from sammobile.com and flash it using odin. Tell me if it doesn't works.

I'm trying to download the firmware now and see if that works. Not exactly sure which one to download

Ayushj702 said:
Download stock rom file from sammobile.com and flash it using odin. Tell me if it doesn't works.
Click to expand...
Click to collapse
u
Ive been trying different stock roms and still havent got my connection back. Any ideas?

Related

Galaxy Note 10.1 N8000 3g not working

Hi
So I flashed a custom ROM which worked 100%, then I tried to flash a custom kernel. And here something went wrong. I first tried to flash Zeus 4.0, but then every time I boot the device my 3g does not even pick up, so i just restored to my backups and everything worked.
But somewhere along the line I messed up something. As no matter which ROM I load my 3g does not connect at all. I've checked the APN settings, and everything seems correct.
Is there a way to flash back to the factory rom and kernel and then go from there?
The roms I've tried to do is Android Revolution HD 9, Illusion, PACMAN and Omega...
My device is the Galaxy Note 10.1 N8000, for south africa...
Thanks in advance.
Flash stock rom via Odin
sammobile.com
You have flashed the so-called "radio" partition.
It contained data connected with networking support.
N8010 (zeus kernel is only for that one...) doesnt seem to have 3g support so you lost it.
But as @up said everything shall back to normality if you'll flash stock samsung rom by odin (search on forum to make sure that the rom version contains radio update... i'm not sure if every has it, just as not every rom had the bootloader update!)
...or look for radio partition dump only - seen one somewhere...

[Q] 3g no longer working on my phone after flashing roms SCH-I500

So, after hours of looking for the stock rom for my Samsung galaxy S ( I don't know which one it is.. It just says samsung at the top and bottom) I found a gingerbread rom, and I flashed it to my phone via Odin. I reset the phone, and I no longer had my 3g, and my phone number says "Unknown". I installed Froyo 2.2.2 before this, and it was working perfectly, except that wasn't the stock that I was looking for, and so that was the reason I flashed the gingerbread ROM.. If anyone could help me, it'd be a big help.
~EPIKHBK1
aww Cmon.. :crying:
No one?
Probably something went wrong with the modem flash. The stock rom contained the modem for the rom itself? It happened to me on a galaxy ace. I flashed a 4.0.4 rom and then i lost the signal (only 3g/2g, not the wifi). Then I flashed a custom rom based on the original one and now everything works. Try to search the official rom for your device on sammobile.
:/
Well, I've spent days looking for the stock ROM :/ I couldn't find the one for mine..
You said install a custom ROM? won't that require a ROOT?
I can't find my model, "SCH-I500" on sammobile.

			
				
Ok, I installed http://www.mediafire.com/download/c7h1wl5wne51duf/ed05_radio.tar.md5.. so I'm able to send/recieve calls, but I still don't see "3g network" icon on the top of my phone, meaning that I don't have 3g..
anyone??
...
Rage..
Eh..
guys... Help me.

G900PXXU1BOD3 rom, where can i find it?

Hi to everyone,
I have this unusual rom in my phone, as I have read through the internet, the XXU1 stands for a HongKong region.
The problem is, that there's nothing about such ROM on the internet, as if it never existed...
The phone was bought as new through online shop..
It has been unlocked through idoneapps. I use it in Europe. GSM and MOBILE data worked fine until I forced to update it through ODIN to G900PVPS3CPK1.
I was able to get the GSM to work, but the WCDMA network isn't available.. and the messages are split into pieces when I send them. As I've read, that is how they're sent in US.
I had tried many if not all of the roms, modems, kernels etc.. available in this SPRINT galaxy s5 thread..
but none gave me back the mobile network 4G.
So I was wondering if anyone has heard anything about such ROM (my original one) or where I could look for it? Maybe you have an idea what to do?
I searched for you. Here is the result.
https://samsung-firmware.org/download/Galaxy S5 (Snapdragon)/5998/ITV/G900FXXU1BOD3/G900FITV1BOD2/
This page explains it all.
I think you remembered a character wrong, it is an F, not a P. if it is really a P, and you are sure your device model is SM-G900P, then you must buy a new phone with a wrong ROM. I don't think that happens a lot. G900P never has a G900PXXU1BOD3 ROM. I think you flashed a WRONG ROM in the first place. DO NOT flash the ROM in this post until you confirm that your phone's Model Number(you can check this yourself in Settings, About device) is SM-G900F.
Thanks for your response. The sad thing is that the phone is G900P. I have attached the screenshot below. I have made a full TWRP recovery of the rom before doing any flashing. I am able to restore it all except the modem, as TWRP doesn't restore modems.
If I put a newer ROM bootloader and modem and restore the backup - I get a bootloop. If i put an older one I get no signal and the lower buttons arent working. Though I found BOG1 modem to work with my current firmware, but it's not fluent. The phone feels laggy and GPS isn't working...
So I am looking for a complete rom that could work in this phone without any recovery..
Can you find ok4?? Runs awesome for me, use Odin to flash it, you'll lose twrp but then Odin twrp
apexnx said:
Thanks for your response. The sad thing is that the phone is G900P. I have attached the screenshot below. I have made a full TWRP recovery of the rom before doing any flashing. I am able to restore it all except the modem, as TWRP doesn't restore modems.
If I put a newer ROM bootloader and modem and restore the backup - I get a bootloop. If i put an older one I get no signal and the lower buttons arent working. Though I found BOG1 modem to work with my current firmware, but it's not fluent. The phone feels laggy and GPS isn't working...
So I am looking for a complete rom that could work in this phone without any recovery..
Click to expand...
Click to collapse
Sorry for the late reply, you didn't quote me, so I did not get the notification that you have replied.
It's very weird that your bought G900P with a G900F ROM. G900P doesn't support WCDMA network, I don't know if it's blocked by software. But the link in my last post indicates that your reseller flashed G900PXXU1BOD3 for you in order to make WCDMA work. I don't know if you can simply flash official G900PXXU1BOD3, because the system with your phone may be modified in the first place. If you simply want to restore original backup with modem, drop back to TWRP 3.0.2-1 or 3.0.2-0, 3.0.2-1 wouldn't mount external SD card so you have to move your backup to internal storage, I didn't test 3.0.2-0 but I assume it's the least buggy recovery for G900P so far.
yueyejinghun said:
Sorry for the late reply, you didn't quote me, so I did not get the notification that you have replied.
It's very weird that your bought G900P with a G900F ROM. G900P doesn't support WCDMA network, I don't know if it's blocked by software. But the link in my last post indicates that your reseller flashed G900PXXU1BOD3 for you in order to make WCDMA work. I don't know if you can simply flash official G900PXXU1BOD3, because the system with your phone may be modified in the first place. If you simply want to restore original backup with modem, drop back to TWRP 3.0.2-1 or 3.0.2-0, 3.0.2-1 wouldn't mount external SD card so you have to move your backup to internal storage, I didn't test 3.0.2-0 but I assume it's the least buggy recovery for G900P so far.
Click to expand...
Click to collapse
My mistake,
I believe I had tried to restore backup with those versions of TWRP. They don't restore the modem part and give me an eror (can't remember exactly how it sounds), but as far as I have read, TWRP does not restore modem. It is impossible. So I can only flash it by ODIN, but there is no such G900PXXU1BOD3 modem on the internet..
I wonder, what if I would simply flash the G900FXXU1BOD3 or never rom with F symbol, could it work out for me? Maybe you have read about someone doing that? So far its my only hope...
apexnx said:
My mistake,
I believe I had tried to restore backup with those versions of TWRP. They don't restore the modem part and give me an eror (can't remember exactly how it sounds), but as far as I have read, TWRP does not restore modem. It is impossible. So I can only flash it by ODIN, but there is no such G900PXXU1BOD3 modem on the internet..
I wonder, what if I would simply flash the G900FXXU1BOD3 or never rom with F symbol, could it work out for me? Maybe you have read about someone doing that? So far its my only hope...
Click to expand...
Click to collapse
I don't know if someone deliberately flash a stock G900F ROM to G900P, it would have most likely bricked the device. But I have noticed a slight difference between the 2 pictures you posted, first 1 says baseband version is G900PXXU1BOD3, idoneapps says it's G900PVPU3BOG1, I don't know which one is more accurate. I couldn't find a seperated modem file of G900FXXU1BOD3, yet there is a way to extract it yourself, simply change filename extension md5 to tar and open it with compression software. After flash modem, restore your backup.
Edit 1: Maybe you need to flash CSC also when you flash modem. But no rush, just try modem only first.
sammobile.com/firmwares is the only real legit place to get firmwares
Help me!
Hello,
Curiously I have the same problem, I bought the mobile by Ebay to a Hong Kong user and it comes rooted and with problems I do not know how to solve, from the beginning the camera did not focus until suddenly by magic, it focused.
Now I want to do a ROM restoration but I am not able to find that version since from what I see in the answers you have offered here seems to be "trick", have you found any solution? I would appreciate it if you told me so please.
Thank you.
A greeting.

Strange Baseband; Strange problems

Hello everyone, this is my first post, after having read a lot in this forum already.
tl;dr: I flashed several ROMs onto the phone and always had the same problem: Connection to network goes away completely when mobile data is turned on. My baseband is S7652XXMA1 for which I cannot find a stock rom. Don't know what to do now.
Comprehensive description:
So I got a Samsung Galaxy S Duos (GT-S7652) and thought I flash some fancy ROM on it to gather some experience before I go and try with my main phone. So I installed TWRP, which went fine, then I flashed PMP Light ROM, because I read that would improve the performance and I liked the ROM.
The problem is, that as soon as I turn on the mobile data, the phone loses network. I double checked APN settings and tried the same SIM card with my other phone and those settings and everything works fine.
I tried to flash back Stock ROMs, but the problem stays the same.
Now I see two potential sources:
1. Baseband of my phone is S7652XXMA1 and I cannot find the right stock rom for this (although I tried some other Stock ROMs, because I thought they would change the baseband, which they did not)
2. When flashing process reaches the fat.bin (which I read contains the baseband) it gives me an error:
Code:
99%
100%
ERROR: Failed to confirm end of file transfer sequence!
ERROR: FAT upload failed!
Does anyone know how to proceed? Does anyone know where to get a Stock ROM for this Baseband S7562XXMA1? All help is much appreciated
Ok, telephony also doesn't work, if one tries it loses network just as in the mobile data case.
Has no one any ideas, how I could overwrite the Baseband?
Try cm11 with Hungarian baseband.
Is network working on phone properly?
You can also try to flash indian baseband, but keep a backup of old baseband
Wifi works without problems, for mobile network see my posts above.
I have not kept a backup, as I thought just reinstalling stock rom would bring me back to original.
Why do you recommend to flash Hungarian Baseband cm11, so far no baseband rom could overwrite my fat.bin, what does this do differently?
Toppar said:
Wifi works without problems, for mobile network see my posts above.
I have not kept a backup, as I thought just reinstalling stock rom would bring me back to original.
Why do you recommend to flash Hungarian Baseband cm11, so far no baseband rom could overwrite my fat.bin, what does this do differently?
Click to expand...
Click to collapse
Which rom are u using?
Hungarian baseband works for everyone without bugs.
Did you try indian baseband?
Ritik99 said:
Which rom are u using?
Hungarian baseband works for everyone without bugs.
Did you try indian baseband?
Click to expand...
Click to collapse
So far I was mostly trying various Stock ROMs and PMP Light Rom. Ok, I will try the Hungarian Baseband cm, if that promises better results. I will report back if that worked.
Toppar said:
So far I was mostly trying various Stock ROMs and PMP Light Rom. Ok, I will try the Hungarian Baseband cm, if that promises better results. I will report back if that worked.
Click to expand...
Click to collapse
CM11 gives good performance than stock rom for sure.
Hey, I managed to override the baseband with the Hungarian one through the zip from here: [CM11][GT-S7562] Samsung Galaxy S Duos Kitkat 4.4.4
The problems are still the same. I tried to install the cm11 from the same thread (through TWRP), but I get an error (Updater process ended with ERROR: 7) telling me that I am trying to install on top of incompatible data. I tried doing a factory reset, but to no avail.
Right now I am on |DisContinued| COSMIC ROM | Version 2.5 |KitKat-Mod|Galaxy S Dous|Smooth|Fast|Stylish, which also is based on cm11.
I will try to flash some other ROM from PC, but I don't have much hope that will solve anything. Does anyone know where I could obtain a Stock ROM, that is compatible with Hungarian Baseband? There is a link in the Kitkat Thread above (http://d-h.st/do72), but it only gives me some exe-file instead of the tar.gz that I look for...
Toppar said:
Hey, I managed to override the baseband with the Hungarian one through the zip from here: [CM11][GT-S7562] Samsung Galaxy S Duos Kitkat 4.4.4
The problems are still the same. I tried to install the cm11 from the same thread (through TWRP), but I get an error (Updater process ended with ERROR: 7) telling me that I am trying to install on top of incompatible data. I tried doing a factory reset, but to no avail.
Right now I am on |DisContinued| COSMIC ROM | Version 2.5 |KitKat-Mod|Galaxy S Dous|Smooth|Fast|Stylish, which also is based on cm11.
I will try to flash some other ROM from PC, but I don't have much hope that will solve anything. Does anyone know where I could obtain a Stock ROM, that is compatible with Hungarian Baseband? There is a link in the Kitkat Thread above (http://d-h.st/do72), but it only gives me some exe-file instead of the tar.gz that I look for...
Click to expand...
Click to collapse
I don't think cosmic is based on cm11 its just kitkat themed stock.
Try to again download cm11, u will find a new experimental build on last pages.
U can find the stock firmware from this thread.
https://forum.xda-developers.com/s7562/general/cwm-twrp-recoveries-s7562-t3352052
Ritik99 said:
Try to again download cm11, u will find a new experimental build on last pages.
Click to expand...
Click to collapse
I tried already both, the ROM in the first post and the latest experimental one from one of the last pages. They all gave me Error: 7
Ritik99 said:
U can find the stock firmware from this thread.
https://forum.xda-developers.com/s7562/general/cwm-twrp-recoveries-s7562-t3352052
Click to expand...
Click to collapse
Its hosted at http://d-h.st... The only thing I can manage to get from there is a 7z1602.exe, which seems like a bad idea to execute. Can you download from there? If yes, maybe you could then upload it to a different file hoster, I would be very grateful.
Yes i tried to download stock Hungarian firmware from cm11 thread, it isn't working.
i reported it their.
Have you tried to download from here, download your country firmware - https://www.sammobile.com/firmwares/database/GT-S7562/
You will have to flash with odin , their are many good guides available for that on Google
Ritik99 said:
Yes i tried to download stock Hungarian firmware from cm11 thread, it isn't working.
i reported it their.
Have you tried to download from here, download your country firmware - https://www.sammobile.com/firmwares/database/GT-S7562/
You will have to flash with odin , their are many good guides available for that on Google
Click to expand...
Click to collapse
I know that site, but they don't have the version for Hungarian Baseband. I tried some other stock roms from there though, but no success.
Toppar said:
I know that site, but they don't have the version for Hungarian Baseband. I tried some other stock roms from there though, but no success.
Click to expand...
Click to collapse
They provide flash file which can be used with odin through computer. It will install stock samsung firmware of your country, so it will make the whole phone new, don't forget to backup your data.
Ritik99 said:
They provide flash file which can be used with odin through computer. It will install stock samsung firmware of your country, so it will make the whole phone new, don't forget to backup your data.
Click to expand...
Click to collapse
I started this Thread because that messed up my mobile network connection, so it is not "new". I need some firmware, that will work with my (now) Hungarian Baseband.
Toppar said:
I started this Thread because that messed up my mobile network connection, so it is not "new". I need some firmware, that will work with my (now) Hungarian Baseband.
Click to expand...
Click to collapse
You say that you cant flash basebands through recovery, so now the best option is odin only, now i am out of ideas about for your problem
I was able to flash the hungarian baseband only, no other worked. Now I do need some ROM that works with that Baseband. I posted a request for a new link in the Thread, maybe I then can proceed and make some progress.
Just if anyone is still following this, I have managed to restore the network connection by using the Hungarian Stock ROM, which I finally managed to locate. If anyone needs it too, here is a link:
http://www.filehosting.at/file/details/656731/S7562XXALJ4_S7562OXXALJ3_S7562XXLJ3_HOME.tar.md5

Suddenly no cellular connection anymore

Dear forum,
a few days ago my cellular connection (i can't connect to my provider) doesn't work anymore. Sometimes a day it works for a few minutes, but mostly not.
I have a Galaxy S4 with Lineage OS (was perfectly running) and there was no update when it stopped working.
Meanwhile i tried to wipe and flash the OS but the error is still there.
My sim card is working in other devices and other sims in my don't work too.
Thank you for your help
Mrluca
Flash stock rom via odin
if after you flashed stock rom via odin it still doesnt work it could be a hardware fault
To eliminate any software problems you must flash stock firmware via odin
TheFixItMan said:
Flash stock rom via odin
if after you flashed stock rom via odin it still doesnt work it could be a hardware fault
To eliminate any software problems you must flash stock firmware via odin
Click to expand...
Click to collapse
Flashed the stock rom as you said, but the error is still there :/
Even when it displays that there is a connection, every call just stops after dialing
So i guess it is a hardware fault?

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