Develop Bugs

No network signal w/ 2 sim card

Here's my problem, I'm on latest cm10.2 nightly and I don't have any network signal...I tried with 2 different sim cards, both can be read with a "Sim Card Reader" from the Playstore but I cannot send/receive sms or call with both sim cards...I tried to enter manually the APN but still nothing...the sim card tray is not broken in any kind...what's the problem? I just reinstalled the stock firmware but no chance, no signal at all...that's weird!!!
Any help or fix are welcome
Sent from my LG-E973 using XDA Premium 4 mobile app

Anyone have or had the same issue? I just need to send sms through Telus network because i don't have wifi access at work...mobile data is not important for me...
Sent from my LG-E973 using XDA Premium 4 mobile app

JasonBourne.Qc said:
Anyone have or had the same issue? I just need to send sms through Telus network because i don't have wifi access at work...mobile data is not important for me...
Sent from my LG-E973 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I've a E975 version and last week I pick up my phone and it was with no signal, reboot and nothing happen, went to a store and my SIM card was ok and a different network SIM card was not working too. The phone was not able to "read" the PIN code (my SIM card PIN is disabled).
I've flashed the ROM again (Savyrom) and I had a subsystem crash and afterwards kernel crash's, the stock ROM backup and kdz installation have not helped either.
Now I've sent it to LG support service because after a factory reset i've lost my IMEI and the phone was rebooting 30s after starting up and I was not in a mood to try to restore the Freegee IMEI backup.
Do you have the IMEI number?

rimsilva said:
I've a E975 version and last week I pick up my phone and it was with no signal, reboot and nothing happen, went to a store and my SIM card was ok and a different network SIM card was not working too. The phone was not able to "read" the PIN code (my SIM card PIN is disabled).
I've flashed the ROM again (Savyrom) and I had a subsystem crash and afterwards kernel crash's, the stock ROM backup and kdz installation have not helped either.
Now I've sent it to LG support service because after a factory reset i've lost my IMEI and the phone was rebooting 30s after starting up and I was not in a mood to try to restore the Freegee IMEI backup.
Do you have the IMEI number?
Click to expand...
Click to collapse
Sure I have the IMEI but I think some m9kefs.img are broken because when i try to restore efs with freegee, it gives me error...
I will try kdzing back to Fresh & Clean stock firmware...i have the imei but no network...

rimsilva said:
I've a E975 version and last week I pick up my phone and it was with no signal, reboot and nothing happen, went to a store and my SIM card was ok and a different network SIM card was not working too. The phone was not able to "read" the PIN code (my SIM card PIN is disabled).
I've flashed the ROM again (Savyrom) and I had a subsystem crash and afterwards kernel crash's, the stock ROM backup and kdz installation have not helped either.
Now I've sent it to LG support service because after a factory reset i've lost my IMEI and the phone was rebooting 30s after starting up and I was not in a mood to try to restore the Freegee IMEI backup.
Do you have the IMEI number?
Click to expand...
Click to collapse
So, here's my problem now...
I just reinstall stock jb firmware on my phone, I can see the IMEI in the setting but I don't have any signal from my carrier...
I have an EFS backup but I think it's broken...Anyone can open it and verify if it's true? I can send those 3 files...

JasonBourne.Qc said:
So, here's my problem now...
I just reinstall stock jb firmware on my phone, I can see the IMEI in the setting but I don't have any signal from my carrier...
I have an EFS backup but I think it's broken...Anyone can open it and verify if it's true? I can send those 3 files...
Click to expand...
Click to collapse
My advice is to send the phone to LG support, maybe you have a SIM card hardware problem... At least you don't have system crash's and reboots like me.
I was with IMEI too I'm almost 100% sure that a lost it after the hard reset.

rimsilva said:
My advice is to send the phone to LG support, maybe you have a SIM card hardware problem... At least you don't have system crash's and reboots like me.
I was with IMEI too I'm almost 100% sure that a lost it after the hard reset.
Click to expand...
Click to collapse
Hummmm...that's not a hardware problem because the phone recognize the sim card (sim serial number, sim state is ''Ready'', sim country ISO: Ca)
I surely think it's related to the EFS partition but I got the IMEI...that's weird
And I can't send him to LG support because the warranty is over...

JasonBourne.Qc said:
Hummmm...that's not a hardware problem because the phone recognize the sim card (sim serial number, sim state is ''Ready'', sim country ISO: Ca)
I surely think it's related to the EFS partition but I got the IMEI...that's weird
And I can't send him to LG support because the warranty is over...
Click to expand...
Click to collapse
sir i have got the same issue in my f180K...picking up sim but not caching singla.this problem occur after installing a vietnamees rom.do u find any ???thanx

Bump, same problem. Doesn't matter which ROM I install. I have signal and mobile data, when I'm in a place with very good reception. But if the reception is not very good, then boom, no signal at all.... :/ I have IMEI as well. Have already tried flashing v20 EUR baseband, no help.
Has anybody found a solution to this maybe?

same problem on f180l.
no imei no signal no sim card working.

My problem shows up when from android 6 i make clean flash with flash tool 2014 the official rom is e975 europe my phone after that i have imei normal but i don't have signal no service and when i tried to go to phone settings from hidden menu (*#*#4636#*#*) it says this application does not work on this device i tried to change the network manually with no luck tried to restore efs nothing...tried manual apn settings....new card from diferent carrier nothing...pc suite has restore upgrade errors...pass all the upgrade with no success, what else i can try????

Galaxy s3 t999 wont read sim card after unlocking

I need help with my s3 from tmobile, i unlocked it using one of the guides on this forum, had to go from 4.2.1 to 4.1.1,(*#197328640#) then when i went back to 4.2.1 it would not register network(still using tmobile sim card) went to update and got the 4.3 and now it says insert sim card when i go to mobile network, I already check imei number and its the same as in the sticker on the back of the phone, the sim card works on my other phone so I would appreciate any help

Perhaps dirty Contacts. Wipe the contact with a spirit wipe. While wet, insert into the slot and eject immediately and wipe second time.

Perseus71 said:
Perhaps dirty Contacts. Wipe the contact with a spirit wipe. While wet, insert into the slot and eject immediately and wipe second time.
Click to expand...
Click to collapse
If that doesn't work you might want to try a different known working SIM. be mindful of static discharges carpet for example.
good luck....

[HELP] Sudden problem with both SIM Cards not being recognized on any ROM

Good day! I just want to ask if anyone has an idea of how to solve a weird and sudden problem that happened to my phone a few days ago.
I was running Cyanogenmod R16 with Xcelerate kernel.
I use two SIM cards on my phone, but I do not use the first slot all the time, so when I'm not using it, I regularly disable it through the SIM card settings, and enable it only when I need it.
What happened is, when I tried to enable it, suddenly both my SIM card slots could not be recognized (The SIM card settings could not be accessed; and error says: "SIM card info not available. Menu cannot be accessed"). In the lockscreen, it says: "INVALID CARD." for both SIMs.
I tried both restoring a backup and going back to stock MIUI, but still, the problem was there; none of the SIMs could be recognized (I tried using other SIM cards too.)
My IMEI's for both SIM slots are fine.
I've looked up on other forums, but I haven't found any others with a similar problem on the Redmi 1S.
If anyone knows what I need to do to fix this, I need your help. Thank you very much.

Have you tried both sim in other phone..?
If yes,and both working then should be problem with your imei!

farooque7508 said:
Have you tried both sim in other phone..?
If yes,and both working then should be problem with your imei!
Click to expand...
Click to collapse
Yes, I've tried both SIM's on another phone, and they work fine.
Since my phone still shows both IMEI's when I look for it, I assumed that there's no problem with them. What are possible problems that concern IMEI's? So that I can look up on general IMEI problems.
Thank you very much!

May be this can help friend
http://forum.xda-developers.com/showthread.php?t=3006933

RajGopi said:
May be this can help friend
http://forum.xda-developers.com/showthread.php?t=3006933
Click to expand...
Click to collapse
Thanks for the reference. Backed up my IMEI and Restored it right after, but still no change. Still, thanks!
EDIT: I've already tried two newly bought SIM cards, and the problem is still present.

Was this solved? Happening to me right now..

Happening to me too... Unsolved

For me just blowing in the sim slot & reboot fixed after few times..

if you have TWRP backup your modem & efs partition, just restore it via twrp. it worked for me

Hello,
I have a similar problem.
SIM2 is not recognized at all. I can use SIM1 only.
Tried to switch the SIM cards and still SIM2 is not recognized.
Both SIM cards are working great on other phones.
Is it OS related issue?

I've got same problem. Try to clean the sim metal contacts carefully and gently with an alcohol and qtip or tissue. It solved my problem.

Honor3c said:
Hello,
I have a similar problem.
SIM2 is not recognized at all. I can use SIM1 only.
Tried to switch the SIM cards and still SIM2 is not recognized.
Both SIM cards are working great on other phones.
Is it OS related issue?
Click to expand...
Click to collapse
Turn off your mobile and change sim slots then power on if problem still present then again exchange sim slots then power on do this 2to4 times i hope this will work.

both sim cards not working or imei null
after reverting to stock rom from cm 13 to miui8 my both sims not workin. tried different ways but of no use plz help is there a solution

I got this virus yesterday. Came up after installing MIUI 8.

Bro ... I'm having the exact same problem you've ever experienced. Hopefully your problem is solved for your phone and willing to share with me now. Because I've read and done all the replies in this thread and still no solution. Please help and thanks in advance

Sim card(1) "Sim card not detected"

hi
I have a very annoying problem whit the sim slot 1 (i currently test the slot 2)
Very often, the phone tell me "Sim card not detected", and i have to open the phone, dismount the card and put in again.. until the next time.. like i said, it's occurs very often, 10-15 a day..
Even when the phone is on the table without touching it..
I have rooting it and thats it.. 2.19.40.22
I would like to know if someone have similar problems before i try to reflash whit older stock rom??!

It happened to me briefly- After flashing my first full back -up back to the fone --then i did a factory reset and this fixed the sim slot problem

timbernot said:
It happened to me briefly- After flashing my first full back -up back to the fone --then i did a factory reset and this fixed the sim slot problem
Click to expand...
Click to collapse
Hi, I think i have the same problem after testing the Cyanogen build for ZE551ML. Have you did a factory reset from recovery (wipe data, cache and dalvik) or a full stock rom flash ?
Thanks

Above, I was referring to the full 5gb asus ROM back up I made immediately after unlocking bootloader installing twrp and rooting, I installed svn ROM and backed that up too..stripped svn ROM further..backed that up too. Then went about trying my Asus full original...sim 2 was only detected..so did a factory reset and sim came back.
To get sim recognised in CM,I had to wipe usual..install..set up...and factory reset it...hope that clears it up a bit lol

timbernot said:
Above, I was referring to the full 5gb asus ROM back up I made immediately after unlocking bootloader installing twrp and rooting, I installed svn ROM and backed that up too..stripped svn ROM further..backed that up too. Then went about trying my Asus full original...sim 2 was only detected..so did a factory reset and sim came back.
To get sim recognised in CM,I had to wipe usual..install..set up...and factory reset it...hope that clears it up a bit lol
Click to expand...
Click to collapse
Thanks, I'll try !

DmA81 said:
Thanks, I'll try !
Click to expand...
Click to collapse
Oh,try a reboot after factory reset..I forgot to put in description above

Guys can you check your sim holder lock . I mean when you put the sim in holder check if it is properly fitted. Issue is some SIM cards are thinner than normal and sim holder unable to grip it. I faced same issue.

Also recommend using ASUS ZenUI app called ASUS Support. There are several helpful tips with basic troubleshooting techniques for your device including including SIM card troubleshooting. Please go to Apps/ASUS Support/Assistance/SIM Card/Sim card not detected
Sincerely
ASUS_USA

Sim Card not detected
Hey guys,
I am having a similar issue. I have 2 Sims, AT&T and GCI (local carrier). AT&T Sim works in both Slot 1 & 2, and GCI Sim works in slot 2 only. The AT&T sim is a standard MicroSim and the GCI sim is a Tri-Cut sim, so basically a NanoSim in a Micro Adapter.
Sometimes when the GCI Sim is in slot 1, it will recognize for a couple seconds then go gray..

timbernot said:
Above, I was referring to the full 5gb asus ROM back up I made immediately after unlocking bootloader installing twrp and rooting, I installed svn ROM and backed that up too..stripped svn ROM further..backed that up too. Then went about trying my Asus full original...sim 2 was only detected..so did a factory reset and sim came back.
To get sim recognised in CM,I had to wipe usual..install..set up...and factory reset it...hope that clears it up a bit lol
Click to expand...
Click to collapse
timbernot said:
It happened to me briefly- After flashing my first full back -up back to the fone --then i did a factory reset and this fixed the sim slot problem
Click to expand...
Click to collapse
This **** happened to me too
I wonder whats wrong with our backup and twrp

GCI (Dillingham, Alaska)
I to am having the same issue. By chance did you solve the issue? I love my Zenfone 2, but am frustrated by not being able to use 3G. I've tried a few differant methods to fix it. No luck yet.
Please if you have a fix let me know. reply here, or email me at bupbup777 at gmail.
I really hope someone knows a fix.
jmillsak said:
Hey guys,
I am having a similar issue. I have 2 Sims, AT&T and GCI (local carrier). AT&T Sim works in both Slot 1 & 2, and GCI Sim works in slot 2 only. The AT&T sim is a standard MicroSim and the GCI sim is a Tri-Cut sim, so basically a NanoSim in a Micro Adapter.
Sometimes when the GCI Sim is in slot 1, it will recognize for a couple seconds then go gray..
Click to expand...
Click to collapse

I subscribe to the "theory" that some SIM cards are thinner than others and they drop out of slot 1.
In fact, I have 3 SIM cards and they range in thickness by around 0.5mm according to my cheap chinese mircometer. I don't believe that it is coincidence that the thinner ones lose SIM detection more than the thicker ones.
Also it is no coincidence that slot 2 doesn't lose detection becuase the SIMs don't slide upwards out of slot 2, but they do slide downwards out of slot 1.
Do this experiment: Put a SIM in each slot, now place a 3rd SIM in the space between the two. You will notice that it sits easily in the gap between the two installed SIMs with a bit of free play. Put the back cover back on and use the phone normally for a while (a day or two). Now take off the phone back and tip the phone over, does the "third" SIM fall on the floor, or has it been gripped by the SIM in slot 1 as it has gradually slid out of its slot?
Since I put one layer of sellotape on the back of all my SIMs, I have not had one single "SIM not installed" message. I used to get them all the time, especially with one of the thinner SIMs in slot 1 and above all when using the phone in the car (the fully vertical position and the vibrations seemed to have accelerated the SIM slipping out of its slot).
By the way, I never had the SIM slide completely out, but they certainly are not gripped sufficiently in place and slip enough to disconnect.

I had same "sim card 1 not detected" issue.
It worked back when i did soft reboot,.
And no more issue after factory reset

Re @ leftrand earlier on page 1.....
Sorry not been here in a while , but I think this was related to an earlier twrp we used , fixed with the later one I think. So it was a matter of restoring full original bk up,then factory reset then set up again and do another bk up. Keeping original bk up just in case . That was a while back now and should be fixed

facing same problem... only after updating ota. always.. sim 1 is not detected...

Leftrand said:
This **** happened to me too
I wonder whats wrong with our backup and twrp
Click to expand...
Click to collapse
That no way to have a sim 1 working thru TWRP back up after flashing the CM13. What I did was doing a clean flash with SuperZen - 2.20.40.156 Full.
The problem was solve. then I flash back my back up TWRP. The phone now work like a charm.

dominicong123 said:
That no way to have a sim 1 working thru TWRP back up after flashing the CM13. What I did was doing a clean flash with SuperZen - 2.20.40.156 Full.
The problem was solve. then I flash back my back up TWRP. The phone now work like a charm.
Click to expand...
Click to collapse
Yes clean flash solve proublem but dont you tired installing app and losing data ?
I know we have TB.
But recently i use unthetered twrp by TheSSJ and everything goes fine backup and restore no issue with simcard

bupbup777 said:
I to am having the same issue. By chance did you solve the issue? I love my Zenfone 2, but am frustrated by not being able to use 3G. I've tried a few differant methods to fix it. No luck yet.
Please if you have a fix let me know. reply here, or email me at bupbup777 at gmail.
I really hope someone knows a fix.
Click to expand...
Click to collapse
I got it fixed bro! the phone does not like the Nano sim cards in the adapter. I happend to find an old GCI micro sim and had them activate it. works great now.

ok i found a solution. i read a earlier reply saying you cannot assess sim 1 whilst using a recovery back up flashed. i was currently using cm13 nightlys and this morning i flashed paranoid 5.1 or so.... i wanted to go back and compare the two but what i did was restore it from a backup.... so what you should do is when wanting to change roms, KEEP THE ZIP FILES THAT YOU USE TO FLASH THE ROMS WITH!!!!!!!!!!!! im still asking you to back up roms (preferably system before you flash) just so you dont hard brick it.
bottom line is back up rom, but keep zip files for when you want to change between roms. hope i can help

I have this problem, compounded by the fact that it seems all Android 6.0 (or possibly all CM based ROMs for the ZenFone?) have an issue where losing cell signal in a dead zone permanently breaks the radio until the device is rebooted. Even if the SIM is recognized, after going through a no signal area, the signal never gets acquired again and the SIM information lines remain blank or unknown. Trying to refresh the networks or providers list throws an error toast.

No Network Sim card

Hi, I buyed the One Plus 3, but when it arrived i see that it need an nano Sim card, proceed to cut my old card and insert on OP3, the card don't show network signal, i thinked it was from being cut, so i proceed to buy a new card, i inserted the new card and nothing no signal, it detects the carrier ID but never get's network signal, if i manualy search networks it don't any carrier, I Tried with anothers Sim cards and no one can't get signal on OP3.
All the cards are working on my before One Plus One, i tried factory reset, i contacted the provider and the problem is not with the sim card.
Is there anyway to share the modem or something like that so i can fix this?, i even try twrp recovery, and flash the original Oxygen Signed zip.

Thats really strange ! Did you try putting the SIM in Slot-2 as well ?

shrijith1 said:
Thats really strange ! Did you try putting the SIM in Slot-2 as well ?
Click to expand...
Click to collapse
Yes i did, i did even tried and custom rom and nothing , tomorrow it gonna get shipped for RMA.