Database Info

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

Samsung Galaxy S7 SM-G930F - No Network (SIM - CARD)

Hello Guys, this forum is my last hope. I have a problem with my S7 (DBT Germany), I think after flashing an older stock rom and going back to newest, something happened that my phone doesn't detect any sim cards anymore. If I type *#06# , it only shows the SN Number, no IMEI. WIFI still works without problem, but I can not use my sim card anymore, so it's pretty useless now :crying:
The sim card works on another devices, so it's for sure a problem with my s7, I might have messed up something. What do you think is here the problem and how can I solve it? Any help is much appreciated, I really hope to fix this because my phone is only 2 weeks old.
I currently have the latest Firmware for DBT from updato, (December 14, 2017 for Android 7.0)
IMEI = unknown
SIM Card status: Not avaliable

Have you tried a stock ROM from sammobile.com? Updato and sammobile.com should have the same ROM but maybe there is a difference between the 2?
Did you confirm that the phone is running the latest modem?

audit13 said:
Have you tried a stock ROM from sammobile.com? Updato and sammobile.com should have the same ROM but maybe there is a difference between the 2?
Did you confirm that the phone is running the latest modem?
Click to expand...
Click to collapse
I did not try sammobile because updato and sammobile were the same firmware. Sammobile does have a newer firmware from 28/01 but it says I need to join in order to download.
Is there a way I can fix a damaged/corrupted EFS ? My phone is pretty useless now without sim card detection

Sorry, I know of no way to fix imei issue if a combination of Odin and a stock ROM does not work. You may have to take it to a cell repair shop that can force flash the ROM and EFS using hardware like an octopus box: https://octopusbox.com/eng/features/models

audit13 said:
Sorry, I know of no way to fix imei issue if a combination of Odin and a stock ROM does not work. You may have to take it to a cell repair shop that can force flash the ROM and EFS using hardware like an octopus box: https://octopusbox.com/eng/features/models
Click to expand...
Click to collapse
Hey, flashing a Stock Rom with Odin + Root works for me with no problem, how can I flash my EFS? I do know my S/N and IMEI number..

Do you have an EFS backup? If yes, this may help: https://forum.xda-developers.com/showpost.php?p=72355071&postcount=3

audit13 said:
Do you have an EFS backup? If yes, this may help: https://forum.xda-developers.com/showpost.php?p=72355071&postcount=3
Click to expand...
Click to collapse
I don't have an EFS backup. Any chance without a backup? I do know my S/N and IMEI...

You would need a way to recreate the contents of the folder. Unfortunately, I'm not sure how to create the contents.
Maybe this will help: https://forum.xda-developers.com/s7-edge/how-to/guide-how-to-fix-check-drk-imei-issues-t3379516

audit13 said:
You would need a way to recreate the contents of the folder. Unfortunately, I'm not sure how to create the contents.
Maybe this will help: https://forum.xda-developers.com/s7-edge/how-to/guide-how-to-fix-check-drk-imei-issues-t3379516
Click to expand...
Click to collapse
Hey, I have finally found the solution and my sim card is working again :victory:
It really was just that the firmware was 1 version older.. I downloaded the latest DBT Firmware from samsung-updates (Build Date: 15/01/2018)
Put Bootloader to BL , AP to AP , CP to CP , CSC (not Home_CSC!) to CSC , flashed it and finally my IMEI etc. is back.
Thank you for taking your time trying to help me

Congratulations on your success

Huawei Shotx ath-ul01 sim problem.

hi reader. its been almost 1 month since i bought a second-hand Huawei Shotx ath-ul01. when i bought, it was on android 5.1.1, EMUI 3.1. and update was pending for android 6.0 . On first 5 to 6 tries it did not update and ended with error. and when it finally updated successfully it was unable to read both sim cards. and after rollback it even got worst . now when ever i insert a sim card it asks for PUK code and doesn't even accept the real PUK code for my SIM card. i have also tried changing SIM card but the problem is same wit every SIM. Please some one help me through this. i'll be very thank full.
HOPE TO HEAR BACK FROM YOU SOON!

Has the device been rooted ever before?
If you have not any better idea, try to perform a factory reset(wipe data) + wipe cache partition after a full backup. Good luck to you.

James_Watson said:
Has the device been rooted ever before?
If you have not any better idea, try to perform a factory reset(wipe data) + wipe cache partition after a full backup. Good luck to you.
Click to expand...
Click to collapse
I have literally tried every single thing form factory reset to trying flashing other firmware, but all in vein. some people it might be country lock or something. i wish you could help me batter.
also im unable to unlock the boot loader but the huawei website is not working . :crying: plz help i dont want my phone to just end like this.

hamxa_zon said:
hi reader. its been almost 1 month since i bought a second-hand Huawei Shotx ath-ul01. when i bought, it was on android 5.1.1, EMUI 3.1. and update was pending for android 6.0 . On first 5 to 6 tries it did not update and ended with error. and when it finally updated successfully it was unable to read both sim cards. and after rollback it even got worst . now when ever i insert a sim card it asks for PUK code and doesn't even accept the real PUK code for my SIM card. i have also tried changing SIM card but the problem is same wit every SIM. Please some one help me through this. i'll be very thank full.
HOPE TO HEAR BACK FROM YOU SOON!
Click to expand...
Click to collapse
to what build number you Rollback?

build number right now is -- ATH-AL00C92B190 -- with this build i can use only second sim with 2G, and with ATH-UL01 i cant even use second sim.

hamxa_zon said:
build number right now is -- ATH-AL00C92B190 -- with this build i can use only second sim with 2G, and with ATH-UL01 i cant even use second sim.
Click to expand...
Click to collapse
now somhow i managed to install ath-ul01 but the problem still exist. now i think i just have to flash modem.img somehow, but i cant do that, my bootloader is unlocked but i cant perform any command related to MODEM. like FASTBOOT ERASE MODEM or FASTBOOT FLASH MODEM MODEM.img these commands wont work.
system related commands work like a charm.

930FD Dual Sim Network Lock

Hi, my phone is currently locked to carrier smart. Before flashing my first rom, as long as I had 1 smart sim card on any sim slot, the other one can read any other carrier. After flashing rom, if I insert 1 smart sim and another one from a different carrier, I get the network lock notification. It works fine though if I just use 1 smart sim only, or smart sim for both sim slots.
Any ideas on how to revert this? Or are there any unlocking apps I can try for free? Thanks!

Got that same phone few days ago, and as far as my knowledge goes the F and FD version shouldn't be network locked as they ship world wide (international model with exynos chip). From what you saying, its after you flashed the ROM you got the second card locked, so my first question would be what ROM have you installed ? and can you link me to it. 2nd idea or question.. Did you flash the FD ROM or the F one? the F is a single sim version, it does have the second slot in there actually but its disabled or locked, so it might be that the 2nd slot is disabled or something. 3rd, have you tried other ROMs ? or even stock firmware, you can confirm if the ROM is the issue.
And my advice is to not try the apps, most of them are either outdated that only work with exploits in old android versions, or a complete scam. Waiting for your reply.

Hi Salazar, thanks for answering! I already forgot what rom it was - that was about 6 months ago. I remember then I had a backup of my EFS and baseband using TWRP. I remember restoring those when I first encountered the problem - that's how I got my 2nd sim slot working again. Problem is I've already lost that backup, and when i reformatted my phone yesterday, the 2nd sim slot wouldnt work anymore. Just tried flashing a number of custom and stock roms earlier today - problem still persists. If you happen to have the same device (G930FD) - mind sharing your TWRP backup for baseband and EFS?

network locked s10 5G

purchasing a korean phone (in my case s10 5G U+) sim unlocked, the sim card was working good, after updating to the latest march update the sim worked for about one hour then a crossed circle appeared on the top. and no sim card can be read.
what does it mean ? what should I do ?
is it locked or a software issue ?

STALKER18 said:
purchasing a korean phone (in my case s10 5G U+) sim unlocked, the sim card was working good, after updating to the latest march update the sim worked for about one hour then a crossed circle appeared on the top. and no sim card can be read.
what does it mean ? what should I do ?
is it locked or a software issue ?
Click to expand...
Click to collapse
I suggest adding the device model to the thread title.

STALKER18 said:
purchasing a korean phone (in my case s10 5G U+) sim unlocked, the sim card was working good, after updating to the latest march update the sim worked for about one hour then a crossed circle appeared on the top. and no sim card can be read.
what does it mean ? what should I do ?
is it locked or a software?
Click to expand...
Click to collapse
I don't know if you've already tried this but, try backing up the data that you want to save from your device, then boot into to recovery and choose factory reset, when the factory reset finishes, wipe the cache partition while in recovery then reboot the device.
Contact customer support for your mobile carrier and tell them that you lost service after the update was applied, then see if there is anything they can do from within their system to restore your cellular/network connection. If they mention sending you a new SIM, tell them no and that you will try to fix it first and then if it doesn't work you will accept a new SIM from them. Try finding a different solution before you resort to getting a new SIM because the issue might not even be the SIM but it's worth trying to see if they can do anything before you start trying to find software/flashing solutions that you can do yourself.
If you flashed the update yourself, you might have used an update for a different region. If this is what you did, you need to find the update for your model number and for your specific region, country or carrier. Or you can flash just the modem img or bin file that has been extracted from a firmware update that is for your region, country or carrier.
If that doesn't work. Try flashing the firmware version that you had before the update was applied.

Droidriven said:
I don't know if you've already tried this but, try backing up the data that you want to save from your device, then boot into to recovery and choose factory reset, when the factory reset finishes, wipe the cache partition while in recovery then reboot the device.
Contact customer support for your mobile carrier and tell them that you lost service after the update was applied, then see if there is anything they can do from within their system to restore your cellular/network connection. If they mention sending you a new SIM, tell them no and that you will try to fix it first and then if it doesn't work you will accept a new SIM from them. Try finding a different solution before you resort to getting a new SIM because the issue might not even be the SIM but it's worth trying to see if they can do anything before you start trying to find software/flashing solutions that you can do yourself.
If you flashed the update yourself, you might have used an update for a different region. If this is what you did, you need to find the update for your model number and for your specific region, country or carrier. Or you can flash just the modem img or bin file that has been extracted from a firmware update that is for your region, country or carrier.
If that doesn't work. Try flashing the firmware version that you had before the update was applied.
Click to expand...
Click to collapse
thank you for your time and you helping.
I actually tried to factory reset but the device cant let you enter the recovery.
eventually i replades the device. it was some sort of update issue with this specific device.