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Hi good people, I am facing a problem. Around 8 hours back I tried calling someone but the call didn't connect so I restarted the phone and then I lost the network. I tried reboot, flashed different ROMs (unofficial CM14, cm13 nightly build n MM nougat backup), tried with GAPPS and without GAPPS but the problem is persisting. I even tried swapping the Sim cards before that but of no use. I tried debugging by using *#*#4636#*#* but ping test is failed and also there is "TURN RADIO ON" I believe ideally it should be "TURN RADIO OFF". please have a look at the screenshots. I'm almost dying without making important calls.
Update: Guys I have got it working.. Kindly look into my below posts. Please don't misguide people for small issues.
Thanks
In the screenshot we can also see, GSM SERVICE IS OFF. it stays the same even after clean flashing a new custom ROM.
Got it working. Flashed latest COS ROM file however the situation was still the same. Then I removed sim, switched on airplane mode restarted. After reboot inserted Sim then again restarted n then I got the signal
1. Removed Sim card, switched on airplane mode from both power menu and notification toggle.
2. Restart, inserted Sim card and switched off airplane setting from setting. (Notification toggle and power menu didn't work) then got the network.
Please note I tried with only one sim in sim 1 tray. Later I got the network for 2nd sim as well
Narasimha12 said:
Got it working. Flashed latest COS ROM file however the situation was still the same. Then I removed sim, switched on airplane mode restarted. After reboot inserted Sim then again restarted n then I got the signal
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Click to collapse
Which rom did you flash and what was your method of flashing?
You also said simply flashing didn't work. It was what you did with reboot, aeroplane mode and taking out and reinsert the Sim that worked?
I've had the same problem for almost a month now... and i gave my phone to the service center. They called up to inform me that its a motherboard failure and they'll fix it.. I'll provide further info when I get my phone back (probably in 3-4 days)
P.S I tried almost every method to make it work. So if you couldn't make it work in first 2 days or so, dont waste your time and just give it for the servicing (make sure its in Stock OS so that they dont ask any questions about root xD )
lekhwani said:
Which rom did you flash and what was your method of flashing?
You also said simply flashing didn't work. It was what you did with reboot, aeroplane mode and taking out and reinsert the Sim that worked?
Click to expand...
Click to collapse
I flashed almost every latest ROM. But no ROM got the network back. So as a last resort I flashed COS 12.1 and still didn't get the network. Then I removed both the sims, activated flight mode restarted the device, left it couple of minutes and inserted only one sim in first slot. Holla I got the network. Then everything is back to normal
If u r facing the same problem I would suggest u to activate flight mode n restart. If it doesn't work try by removing sim cards, if it still doesn't work try COS 12.1.
lekhwani said:
Which rom did you flash and what was your method of flashing?
You also said simply flashing didn't work. It was what you did with reboot, aeroplane mode and taking out and reinsert the Sim that worked?
Click to expand...
Click to collapse
Usual procedure of flashing. Wipe cache, dalvik, system and data. Flash ROM + Gapps. Reboot
Try to search in the forum. There is a lot of threads with the same problem with the Zuk Z1. It is a hardware problem.
Enviado desde mi Redmi Note 3 mediante Tapatalk
Your modem and baseband sections may be damaged. Modem structure is hidden under qualcomm structure. To Access and repair those sections, you need to do some modifications. I managed to make my Zuk Z1 worked again with some tweaking. Altering that part of the phone is illegal due to its restricted elements such as IMEI number. That's why I cannot post a tutorial here. İt is not allowed. However, I can help you if you personally contact me. I hope you get your signal back soon.
psyckoze said:
Your modem and baseband sections may be damaged. Modem structure is hidden under qualcomm structure. To Access and repair those sections, you need to do some modifications. I managed to make my Zuk Z1 worked again with some tweaking. Altering that part of the phone is illegal due to its restricted elements such as IMEI number. That's why I cannot post a tutorial here. İt is not allowed. However, I can help you if you personally contact me. I hope you get your signal back soon.
Click to expand...
Click to collapse
Please follow xda rules and don't tell people illegal things where they get in trouble. Keep in mind, that's not an illegal forum
Sure thing but I have already mentioned it. I didn't post anything illegal. So, take it easy.
psyckoze said:
Your modem and baseband sections may be damaged. Modem structure is hidden under qualcomm structure. To Access and repair those sections, you need to do some modifications. I managed to make my Zuk Z1 worked again with some tweaking. Altering that part of the phone is illegal due to its restricted elements such as IMEI number. That's why I cannot post a tutorial here. İt is not allowed. However, I can help you if you personally contact me. I hope you get your signal back soon.
Click to expand...
Click to collapse
Hej. I manage to mess upp my baseband/modem proberly when flashing a rom or i messed up in twrp.
Phone show up imei as null and unknown baseband so i would really appriciate you help here.
I still have orginalbox that show my imei so i can enter the correct one when needed.
psyckoze said:
Your modem and baseband sections may be damaged. Modem structure is hidden under qualcomm structure. To Access and repair those sections, you need to do some modifications. I managed to make my Zuk Z1 worked again with some tweaking. Altering that part of the phone is illegal due to its restricted elements such as IMEI number. That's why I cannot post a tutorial here. İt is not allowed. However, I can help you if you personally contact me. I hope you get your signal back soon.
Click to expand...
Click to collapse
Hi, I haven't still gone to the service centre. Kindly pm me the tutorial for getting signals back.
Did clean flash zui 2.5.330 using twrp, phone booted normally but no network, both SIM cards seems disabled. Copied CM 12.1 to the phone, flashed n twrp, phone booted but same issue pertain, and I also tried flashing RR ROM, but in that it shows no SIM Card despite the SIM Cards are present.
When I use *#*#4636#*#*, under phone information unable to toggle/change TURN ON RADIO, it doesn't respond?
Any help be highly appreciated
In what way you flashed zui 2.5.330 i mean though twrp or qfil....
Try to flash using qfil....
This has no solution. Sometimes gets fixed in a day, sometimes doesn't even in weeks.
You can try keep restarting it. This time it's day 5th & I am still facing it.
If you get the network back, try NEVER TO LET IT TURN OFF. I keep it powered on for months & everything goes fine, once powered off due to battery & wao it'll get back
karimskcs said:
In what way you flashed zui 2.5.330 i mean though twrp or qfil....
Try to flash using qfil....
Click to expand...
Click to collapse
I flashed through TWRP
karimskcs said:
In what way you flashed zui 2.5.330 i mean though twrp or qfil....
Try to flash using qfil....
Click to expand...
Click to collapse
Can I have the link to download the specific type for qfil, as the one I have doesn't have prog_emmc_firehose_ and XML and patch file.
AbuUmayr said:
I flashed through TWRP
Click to expand...
Click to collapse
Flashed through qfil but to no avail
Finally went to service centre and had the PCB replaced, alhamdulillah, the phone was under warranty...
Same issue...
I dialed *#06# to check MEID number and the slot 2 number is zeroed..... Both slot IMEI numbers are present.....Can this be the reason ..... Anyone with fixed network please try dialing and check of slot 2 MEID number is zeroed....
varun pilakavil said:
I dialed *#06# to check MEID number and the slot 2 number is zeroed..... Both slot IMEI numbers are present.....Can this be the reason ..... Anyone with fixed network please try dialing and check of slot 2 MEID number is zeroed....
Click to expand...
Click to collapse
This happens & I have tried imie changers too but that doesn't solve the issue.
Two possible solutions
Insert SIM's while phone is running.
Do a warm start if possible.
I reckon if you do a full reboot the SIMslot starts to late.
Had the same issue.
I've managed to fix the "SIM card is not allowed" problem by entering *#*#4636#*#* -> Phone Information -> Network Type -> Global Auto (PRL). Rom is PixelExperience 8.0. The problem sim card should be in the slot #1.
Many of you might have seen that after flashing custom ROMs and rebooting the phone with that ROM, Volte worked fine, but as soon as you flash Magisk Root and reboot again, volte is lost and further reboots doesn't seem fix it.
Working around my phone and in magisk I found a temporary solution to recover volte for calls.
***Solution***
After flashing Magisk Root, reboot your phone normally, you won't see Volte option for calls, now all you have to do is open Magisk Manager and swipe from left and look for "Magisk Hide", click on it (you'll see lots of system files), in the search bar search for 'phone services', phone services option will come up with a checkbox, click on that checkbox, your network will reset for a few second and will be back with Volte working.
I've attached some screenshots for better understanding.
**note that after every reboot you'll have to perform this procedure again n again to gain volte**
HOPE THIS HELPS Hit Thanks
Which ROM you are using right now.?
Did you flashed stock ROM.? because by flashing stock ROM IMEI shows "0", however I have recover IMEI but I won't able to get back volte.
akshu2697 said:
Which ROM you are using right now.?
Did you flashed stock ROM.? because by flashing stock ROM IMEI shows "0", however I have recover IMEI but I won't able to get back volte.
Click to expand...
Click to collapse
Earlier I was using Oreo Custom Rom (FireHound) then I went back to stock (at this moment the IMEI lost).. right now I'm using AtomicOs Oreo.
If you want to use VoLte do the steps which I posted above regarding magisk. Hope that helps.
Well, my friend, I think Volte worked for me even if I didn't follow the above steps. Maybe regaining LTE is the main part. Nice tuto by the way.
ROM: Atomic OS latest
Not working
I flashed stock with 64 bit recovery installed, which, I think, is the reason of IMEI lost. (I flashed stock to re-gain VoLte , 4g was working fine)
But soon after booting stock, IMEI went to 0 or NA in many cases.
Going back to any 8.1 ROM gets back previous imei and 3g but 4g or volte. This story is going on since past 2 months.
And, this method doesnt do anything except resetting network and finding only 3g again.
blaze_me said:
Well, my friend, I think Volte worked for me even if I didn't follow the above steps. Maybe regaining LTE is the main part. Nice tuto by the way.
ROM: Atomic OS latest
Click to expand...
Click to collapse
Yeah you are right, but sometimes for few people VoLte didn't worked..
sujay kumar said:
I flashed stock with 64 bit recovery installed, which, I think, is the reason of IMEI lost. (I flashed stock to re-gain VoLte , 4g was working fine)
But soon after booting stock, IMEI went to 0 or NA in many cases.
Going back to any 8.1 ROM gets back previous imei and 3g but 4g or volte. This story is going on since past 2 months.
And, this method doesnt do anything except resetting network and finding only 3g again.
Click to expand...
Click to collapse
Yes this method doesn't works if IMEI is lost.. I have wrote this method before IMEI lost not after the IMEI 0.
This will only work for people who still haven't lost their imei and if after flashing VoLte doesn't works.
shad.man92 said:
Yes this method doesn't works if IMEI is lost.. I have wrote this method before IMEI lost not after the IMEI 0.
This will only work for people who still haven't lost their imei and if after flashing VoLte doesn't works.
Click to expand...
Click to collapse
Anything for losers like us?
sujay kumar said:
Anything for losers like us?
Click to expand...
Click to collapse
Which ROM are you currently using?
I am currently working on HOW TO RECOVER 4G NETWORK after IMEI lost, and I can now manually search 4G network and it shows up but I can't connect to that network, it says registering on the network failed. But I'm still working on it. Will update soon.
***update***
Can't fix the 4G issue yet.
shad.man92 said:
Which ROM are you currently using?
Click to expand...
Click to collapse
Liquid remix rom, And this error is not related to any rom. All roms have this issue. Every time I test new rom(which is every week), i hope to recover my volte, atleast 4g, but no success till yet
sujay kumar said:
Liquid remix rom, And this error is not related to any rom. All roms have this issue. Every time I test new rom(which is every week), i hope to recover my volte, atleast 4g, but no success till yet
Click to expand...
Click to collapse
Did you lost your IMEI?
shad.man92 said:
Did you lost your IMEI?
Click to expand...
Click to collapse
YES
sujay kumar said:
YES
Click to expand...
Click to collapse
Then you cannot recover 4G.
You need to get your motherboard changed.
shad.man92 said:
Many of you might have seen that after flashing custom ROMs and rebooting the phone with that ROM, Volte worked fine, but as soon as you flash Magisk Root and reboot again, volte is lost and further reboots doesn't seem fix it.
Working around my phone and in magisk I found a temporary solution to recover volte for calls.
***Solution***
After flashing Magisk Root, reboot your phone normally, you won't see Volte option for calls, now all you have to do is open Magisk Manager and swipe from left and look for "Magisk Hide", click on it (you'll see lots of system files), in the search bar search for 'phone services', phone services option will come up with a checkbox, click on that checkbox, your network will reset for a few second and will be back with Volte working.
I've attached some screenshots for better understanding.
**note that after every reboot you'll have to perform this procedure again n again to gain volte**
HOPE THIS HELPS Hit Thanks
Click to expand...
Click to collapse
Any permenent fix .every boot ican do thats terrible. Now im without magisk any permanent fix please
Joyel said:
Any permenent fix .every boot ican do thats terrible. Now im without magisk any permanent fix please
Click to expand...
Click to collapse
If you want permanent voLte then flash the rom again and don't flash magisk, stay on unrooted device.
hi all
my partners s7 edge was running very slow so i flashed the stock firmware yesterday and now its lost IMEI information. i have followed guide on here and tried all 3 steps (reflashing rom etc) however whenever i try backing up EMS it fails saying there is no EMS file, she cannot make any calls as its not registering on the network. please can someone help with this???
rumel2011 said:
hi all
my partners s7 edge was running very slow so i flashed the stock firmware yesterday and now its lost IMEI information. i have followed guide on here and tried all 3 steps (reflashing rom etc) however whenever i try backing up EMS it fails saying there is no EMS file, she cannot make any calls as its not registering on the network. please can someone help with this???
Click to expand...
Click to collapse
Hey, I have the same problem, I guess that there's not solution yet.
Try here:
https://forum.xda-developers.com/showthread.php?t=3379516
Sent from my SM-G935F using Tapatalk
Do you a have a efs.img backup ? Or any kind of IMEI/EFS/RADIO backup ?
I had the same problem I flashed the stock ROM and somehow I lost my IMEI info, I tried everything and I was even thinking about buying a z3x box but then I decided to do a very risky move , I completely deleted all the EFS related files/info and reflashed again but now I was not able to boot because I always sent me to recovery mode saying that :
"E:Failed To Mount /EFS (invalid argument )"
Then all I did was installing TWRP and rooted my SM-G935F and then I placed my efs.img backup on my internal SD CARD and went on recovery launched the terminal and wrote this :
dd if=/sdcard/efs.img of=/dev/block/platform/155a0000.ufs/by-name/EFS
Then I wrote reboot and it finally my phone was booting and I recovered my IMEI and was able to use my phone normally.
This only works if you have a backup of your EFS, and even if you do is risky , but I did it because I lost all hope and was accepting the fact that my phone would just become a useless wifi only device .
So there is not a fix yet for this problem ?
I have a problem on my s7edge instead. If i have valid imei i'am almost always in emergency calls, and when the signal comes back does not go into mobile data connection. With the wi fi no problem.Can someone help me i'am going crazy.!
IMEI, Network Signal and Baseband is misssing
Re: IMEI, Network Signal and Baseband is misssing
IMEI, Network Signal and Baseband is misssing
Hi
I am ready to donate if any expert can help me to restore IMEI.
I am using SM-N9500 samsung note 8 model - hongkong version, i frequently change the roms.. when last time i tried to install a custom rom i lost IMEI. i am getting error like IMEI-unknown, baseband- unknown, no network and sim cards not working..
i tried installing stock rom, custom roms, it was installing successfully but only baseband, signal and IMEI are not working. i didnt even back up my EFS folder. So, kindly help me to get back my IMEI.
I have installed stock rom, still no IMEI. now i rooted my mobile and taken EFS backup. is it enough? if yes, pls suggest me the next steps. I also tried installing combination firmware, though is not working, installation was successful and also i am able to see the factory binary logo, after which it will switch off automatically and boot loops. everytime it will open factory binary and immediately it will switch off automatically..
Build number - R16NW.N9500ZHS4CRJ1
Hello, everyone! This is my first post on XDA so sorry if it ain't in the right place.
So... What I did is manually updated my S8 to Android 9 through Odin but it isn't receiving signal and it shows that I'm not registered on network. I already tried everything I could but I can't solve this issue. Can someone help me?
Edit: my phone was working perfectly before I ruined it all.
IMEI ok, signal ok, it's not a hardware problem. I've tried configuring APNs and the ROM is the correct for my phone, country and carrier. I just don't know what is wrong. Thanks for all the replies
Try these:
Reconfigure APN's in the cellular data settings.
Check if your phone has IMEI, if you flash-all you may also lose the EFS partition. If so you have to restore your EFS partition backup.
If you flashed the wrong carrier's android, you'll have to flash the correct one. For example your phone is T-Mobile, but you flashed AT&T version.
Goodluck.
XDHx86 said:
Try these:
Reconfigure APN's in the cellular data settings.
Check if your phone has IMEI, if you flash-all you may also lose the EFS partition. If so you have to restore your EFS partition backup.
If you flashed the wrong carrier's android, you'll have to flash the correct one. For example your phone is T-Mobile, but you flashed AT&T version.
Goodluck.
Click to expand...
Click to collapse
Hello! Thanks for commenting.
I tried configuring APNs but it still not working.
I'm sure I flashed the correct ROM.
I think I lost the EFS partition as you say, since I didn't backed up anything (I'm feeling silly). How do I restore my EFS partition? Thanks again!
Pol_Werty said:
Hello! Thanks for commenting.
I tried configuring APNs but it still not working.
I'm sure I flashed the correct ROM.
I think I lost the EFS partition as you say, since I didn't backed up anything (I'm feeling silly). How do I restore my EFS partition? Thanks again!
Click to expand...
Click to collapse
Check your device IMEI first if it says null or unknown or something similar then you indeed have corrupted EFS.
To check your device IMEI, open dialer then dial *#06#
As for how to fix this, as far as I know without a backup you can't. EFS partition is automatically backed up in any nandroid backup made by TWRP.
You can try XPOSED IMEI changer or if magisk has a similar module.
XDHx86 said:
Check your device IMEI first if it says null or unknown or something similar then you indeed have corrupted EFS.
To check your device IMEI, open dialer then dial *#06#
As for how to fix this, as far as I know without a backup you can't. EFS partition is automatically backed up in any nandroid backup made by TWRP.
You can try XPOSED IMEI changer or if magisk has a similar module.
Click to expand...
Click to collapse
Okay, this is what I get. I've tried flashing the proper modem for my phone but it just won't work huh. Appreciate the help.
Pol_Werty said:
Okay, this is what I get. I've tried flashing the proper modem for my phone but it just won't work huh. Appreciate the help.
Click to expand...
Click to collapse
I honestly have no idea man, sorry not being of much help.
All I can help with is provide you with this tool.
On a side note the image you put there is completely useless and it only exposes your IMEI. The barcode also contains info about your IMEI.
Goodluck.
XDHx86 said:
Check your device IMEI first if it says null or unknown or something similar then you indeed have corrupted EFS.
To check your device IMEI, open dialer then dial *#06#
As for how to fix this, as far as I know without a backup you can't. EFS partition is automatically backed up in any nandroid backup made by TWRP.
You can try XPOSED IMEI changer or if magisk has a similar module.
Click to expand...
Click to collapse
hey, sorry if it's a little late, but i'm having the same problem and my imei is perfectly fine, you know how to solve it?
LemurAmore said:
hey, sorry if it's a little late, but i'm having the same problem and my imei is perfectly fine, you know how to solve it?
Click to expand...
Click to collapse
I saw your thread and my guess is that your device is network locked by IMEI, if you contact your network provider they can confirm it for you otherwise try a different sim card and see if it works.
XDHx86 said:
I saw your thread and my guess is that your device is network locked by IMEI, if you contact your network provider they can confirm it for you otherwise try a different sim card and see if it works.
Click to expand...
Click to collapse
ok i think i missed some important things, this device is refurbished, and i checked the imei and it doesn't match to the device, the imei belongs to a galaxy grand prime, idk if that change something important
LemurAmore said:
ok i think i missed some important things, this device is refurbished, and i checked the imei and it doesn't match to the device, the imei belongs to a galaxy grand prime, idk if that change something important
Click to expand...
Click to collapse
also i just asked my network provider and the imei seems ok
LemurAmore said:
also i just asked my network provider and the imei seems ok
Click to expand...
Click to collapse
perhaps you need to reflash the modem.img on your device, you can get it from here
Did you find a fix for this issue? I've same issue with my S8+. Phone keeps saying there is a Network or SIM Card error on any Lineage ROM (with Android 12 or 13).