[Q] Samsung Galaxy S4 Wifi Issues - General Questions and Answers

Hello everyone.I need some desperate help to resolve this issue.I attached two files,one shows my phone version and the other message I get when I click on Wi-fi which comes on and stays there and my WIFI does not work.I am not rooted currently.Here is what happened.I was on I377UCUAMF3 baseband and build version.I rooted my phone with SD card and installed safestrap and recovery hashcode provided.While on that recovery I restored my phone on stock using a backup I took from when I was on UCUAMDL version.That's why my about device showing different baseband and build number.I tried to root again both with motochopper and SD card root methods and both does not work.Any ideas would be greatly appreciated.Thank you.

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[Q] How to flash baseband to version ..R

Hi all,
i have a Moto G 16GB retail. I am currently on Android 4.4.2. My baseband is always on ...y
I tried to reflash the baseband but without success. I downgraded my rom to Android 4.3, but nothing happens.
It is always on baseband ...y. The effect is, that i have currently no signal, IMEI = 0
All other functions are working well. Can anyone help me to change my baseband to ....R
Device is unlocked and rooted. If i try to flash over TWRP or CMW nothing happens afterwards.
I tried all threads here on xda to change my baseband, but i have no success yet.
Help is needed urgently. Thanks for help!
can anyone help? It's quite urgent!!!

Help| No SIM card | Emergency calls only|sm-g920f

I have really made a mess trying to fix it myself.
I will write the current status and at the bottom what I've tried so you can skip
Model: sm-g920f
IMEI: 359845066450254
sn:RF8G41WR1SW
Android version:6.0.1
build #: XtreStoLite Deo Mod v.3.3 - DPDP
Baseband:G920FXXU3DPDP
Kernel version: 3.10.61-7884513 [email protected]#1
22 Apr KST 2016
now the sim card works in other phones and when I remove it the device registers it is SIM CARD REMOVED but when I put it back in nothing happpens, and mobile networks settings is gone
*I started in stock 5.1.1 (MADE NANDROID BACKUP OF EVERYTHING INCLUDING EFS) and flashed twrp via odin > (everything still working)
*flashed XtreStoLite 2.4 (5.1.1) via twrp > (everything still working)
after several months
*flashed new 6.0.1 bootloader and modem via odin and tried to flash XtreStoLite 3.0 (6.0.1) via twrp > got stuck in bootloop...
*used smart switch to go back to stock 6.0.1> Everthing was OK until about a month later the phone suddenly restarted and doesn't recognize the sim card
* I tried factory reset
* I tried samsung but they gave it back saying I've tripped my knox flag
*I flashed 6.0.1 XtreStoLite bootloader, modem and TWRP again via odin
*I flashed XteStoLite 3.3.1 (6.0.1)
*I tried restoring from the first nandroid (stock 5.1.1 from the begining) and got stuck in bootloop again.
*reflashed XtreStoLite 3.3.1 (6.0.1) and tried restoring only the efs. still doesn't work.
Click to expand...
Click to collapse
I saw some threads talking about octoplus box but I still have my efs Backed up my and SN and IMEI still show up.
Please help me I am here I am willing to learn and search online. I've tried everything i've found online.
Hi.
Try to use Smart Switch > Software Update and Initialization to recover your firmware, hopefully you get your network back.
Tell me what happens, gl.
Sent from my SM-G920F using XDA-Developers mobile app
almost same thing on a long thread here, no solution so far:
http://forum.xda-developers.com/galaxy-s6/help/g920f-network-issues-t3291903
I am seriously considering it could be sim reader issue, or some cold solder somwhere on mbo.
My IMEI was also showing in settigs, but when dialed *#0011#, in stack 1, there was "IMEI NG", after write cert operation via octoplus, it says IMEI OK now, but NO SIM, and no mobile networks menu still.
Same like you SIM is detected when inserted or removed, and phone offers restart to access mobile networks, but after restart nothing changes, KNOX tripped by previous owner, phone was in three 3rd party repair shops, where they made even bigger mess than it was, when I brought it to them.
i had the same issue when i upgraded to mm so i sent to shop they had to downgrade it to 5.1.1 and use octobox to fix it
Thanks for replying Legend.
But even though I did the software Initialization in smart switch once before it is not working for me now.
I've tried twenty time while reinstalling and restarting the pc I even tried a different pc I get the same error message every time. "failed to run firmware upgrade unknown error occurred".
any other thing to try?
you could try to restore that backup you have, from when everything worked and then flash 5.1.1. bootloader and modem for that csc via odin before rebooting
According to Smart Switch with your sn it is ILO so you need 5.1.1 bootloader and modem from ILO 4 file fw package.
*I just managed to flash stock 6.0.1 via odin (even though It failed at hidden.img... it boots normally) still no sim card tough.
*I realized that maybe all of this happened because when I flashed stock via smart switch for the first time I didn't have my original s/n so I put one from the internet and it wasn't my region.
meaning I flashed stock of UK and it still worked for a month or so, so that's weird...
*Thank you brenner that is a good idea and I will try now
question how do I extract the bootloader and modem out of the fw? I just open the tar archive and take the boot.img and modem.bin files and flash them as is?
nvm found a guide
Jsmithachoo29665 said:
*I just managed to flash stock 6.0.1 via odin (even though It failed at hidden.img... it boots normally) still no sim card tough.
*I realized that maybe all of this happened because when I flashed stock via smart switch for the first time I didn't have my original s/n so I put one from the internet and it wasn't my region.
meaning I flashed stock of UK and it still worked for a month or so, so that's weird...
*Thank you brenner that is a good idea and I will try now
question how do I extract the bootloader and modem out of the fw? I just open the tar archive and take the boot.img and modem.bin files and flash them as is?
nvm found a guide
Click to expand...
Click to collapse
There are .tar-s which are single file, and 4 files, the ones with 4 files has separate bl/modem
btw, isnt sn written on back of the phone, along with IMEI?
OK, I've flashed the nandroid stock 5.1.1 (LMY47X.G920FXXU3COJ1) and its bootloader and modem from sammobile.. still doesn't work!!
How can this be? everthing is EXACTLY the way it was when it was working!
and no, my model at least doesn't have the S/N and IMEI written at the back, and I didn't keep the box
any other suggestion anyone?
*also there are so many post in subject if I ever find a solution I will make a guide.
-bump-
still no solution..
I've flashed back to current stock ILO...
Meanwhile looking for a lab with octoplus box, still would love solving this at home
At home or not, I would like to solve it too
Bought a second hand S6 the other day and was working perfectly fine until I carried out the update. Now on 6.0.1 and am getting the exact same problem, my SIM works in every other phone. Has anyone found a solution for this?
Not that I know of, except hw replacement, which cost as a used phone with 1+ years of warranty (6 months warranty on motherboard after replacement, on motherboard only)
But I am willing to donate to whoever finds a solution for it.
No i think your problem is a S/W problem, i have 2 G920F with this problem, one of them is 3 binary and another is 4 binary FW, now i work on it if i can solve this problem i told you here.
BR
BBoyGSM

[Need Help] Accidently flashed modem.bin on Samsung j7

hello develpoers!
i need you help fast...:crying:
last night i have flashed a samsung j7 stock rom using flashfire and accdidently i have also flashed the modem.bin file which is a secure partition and
after that my phone can not detect any sim card even i tried alot.
please help me fast to get rid of this problem.
I don't think so
It is not possible unless you kept backup.
You could download full firmware from sammymobiles and user odin to try. Else get a copy of backup from another user with exact same model. That might work.

Sim card missing/Sim card not detected

I had a Samsung Galaxy Note 2 GT-N7105 and used to flash custom ROMs and they worked smoothly.
I just got a Samsung Galaxy Note 2 GT-N7100, rooted it, installed TWRP Recovery and flashed nougat 7.1.1 and Gapps successfully. But phone says "SIM card missing/SIM card not detected". I put my phone to Airplane mode and rebooted it but didn't work.
I have tried on Marshmallow 6.0 too and I get the same problem.
IMEI is unknown.
When I try checking IMEI from dailer, it closes unexpectedly
I restored backup of current modem and EFS Partition but it still didn't work.
Everything works fine when I restore my current ROM.
What should I do to get my SIM card showing on CUSTOM ROM's?

Network unlock

I bought a used note 5 T-MOBILE 64 GB that was unlocked yesterday. My sim card was working fine. I installed TWRP recovery by ODIN and after installing it my phone boot-looped. So, I installed "no-verity-opt-encrypt.zip" file and rooted the phone with "BETA-SuperSU-v2.68-20160228150503.zip". After that the stock rom booted fine but I the phone turned on it gave the error that non-carrier sim was inserted and the sim did not work. I tried formatting the phone. Installed the nougat firmware updated it and the problem still persistes. Is there any way to remove Network lock? I would appreciate your help greatly
munirshah77 said:
I bought a used note 5 T-MOBILE 64 GB that was unlocked yesterday. My sim card was working fine. I installed TWRP recovery by ODIN and after installing it my phone boot-looped. So, I installed "no-verity-opt-encrypt.zip" file and rooted the phone with "BETA-SuperSU-v2.68-20160228150503.zip". After that the stock rom booted fine but I the phone turned on it gave the error that non-carrier sim was inserted and the sim did not work. I tried formatting the phone. Installed the nougat firmware updated it and the problem still persistes. Is there any way to remove Network lock? I would appreciate your help greatly
Click to expand...
Click to collapse
You use the app in the T-Mobile folder to unlock
Sent from my LEX727 using Tapatalk

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