LG G4 SIM card not detected - G4 Q&A, Help & Troubleshooting

Hi guys,
bought a LG G4 and used it with SIM card from Vodafone without any issues.
Now i've tried a SIM from another carrier and phone doesn't reconizes it, thous i've tried this SIM in other phones and it works ok.
What can be the problem? Cheers

Don't know. Had a similar problem. Phone would NOT recognize SIM card after reboot. Needed to reboot 1, 3 or even 4 times! I swear it stopped BEFORE 10C update. Nevertheless I do NOT have this issue anymore despite NOT changing a thing. Same SIM Card, same phone.
Try rebooting. Try updating to 10c
Sent from outer space using telepathy

I can confirm @fpsq's solution. I just bought an LG G4S, inserted a sim card and the phone didn't detect it. I had to reboot 5 times until it detected it. Just keep rebooting guys

I just bought my brand new lg G4 unlocked but it doesn't read my SIM card . Pls help

I have an LG G4 with the SIM card in it reboots on its own with the SIM card out it does not reboot but I can use all of my apps and do a WiFi call through Facebook Messenger or Whatsapp. Anyone have that problem?

Related

My phone choose sim card.

Hi all. I was out of my country and used another sim card for these days. After i returned , when i tried to use my own sim card my phone doesn't recognize it. The very same sim card works in another phone. Another sim card works in my phone but my sim card doesnt work in my own phone. I tried factory reset, it didnt work. Then i flash stock rom, again it didnt work. Any ideas ? Thanks in advance.
I had this happen to me once. The only way I fixed it was to get a good new sim card.
Not really sure what caused it.

[Q] SIM and SD Card Not Working

Hi all,
I have a Huawei P6 in which I tried to change my SIM. However when I put the new SIM in it was not recognized and my Micro SD card is also not recognized now. I have tried factory resetting, the SIM works as I have tried it in another phone. Does anyone have any ideas on how I might be able to fix this?
Thanks
nadama0107 said:
Hi all,
I have a Huawei P6 in which I tried to change my SIM. However when I put the new SIM in it was not recognized and my Micro SD card is also not recognized now. I have tried factory resetting, the SIM works as I have tried it in another phone. Does anyone have any ideas on how I might be able to fix this?
Thanks
Click to expand...
Click to collapse
Does it work when you insert your old sim again? If yes, I guess your phone is sim-locked.
Anyway, your sd-card should always work... so why it doesn't...
_Arjen_ said:
Does it work when you insert your old sim again? If yes, I guess your phone is sim-locked.
Anyway, your sd-card should always work... so why it doesn't...
Click to expand...
Click to collapse
I have found that the old SD Card was corrupt however I have tried my old SIM Card again and it still isn't working. I bought the phone unlocked so as far as I'm aware it shouldn't be locked to a network.

[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

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.

"No Service" despite a functioning SIM card being inserted

Hi all,
I was running on Fulmics 7.6 for close to a year now, and since it was my backup phone, it was usually on Wi-Fi. But I was able to use my Cricket SIM card before, until yesterday. I got a new SIM card from US Mobile, popped it in, and to my surprise: no data. I got the "No Service" message at the bottom of the notification drawer, and it said "Service disabled" at the top of the lock screen. When I try to update the APN, the "Mobile Networks" option is greyed out. I updated to Fulmics 8.0 and that didn't seem to work. I tried flashing Xceed kernel since some posts said a new kernel would help, and that didn't work. I wiped everything in TWRP, and reflashed, and that didn't work.
I was able to get data to work for a few minutes, when someone suggested using paper on top of the SIM card. After I restarted the phone... data did not work again. Then this morning, I updated Magisk from 13.3 (I think that's what was in Fulmics 8.0) to 15.7, and that got data to work again... but when I updated Magisk Manager to 5.7, data stopped working.
I've since tried clean installing Fulmics 8.0, updating Magisk but not the Manager, and even unrooted my phone and rerooted it. Still no dice. I'm drawing blanks here. The phone clearly detects the SIM, but it insists on not receiving data for some reason. I tried this with 2 different SIM cards that work in my other phones, so I'm not sure what the issue is here.
Probably, simcard slot is broken. Mine LG G3 MB got warranty change, because that problem was same like on yours phone
have you tried without simcard and did you see no serivce or no sim inserted?
pjadec said:
Probably, simcard slot is broken. Mine LG G3 MB got warranty change, because that problem was same like on yours phone
Click to expand...
Click to collapse
Yeah, I think that may be the case
barron9 said:
have you tried without simcard and did you see no serivce or no sim inserted?
Click to expand...
Click to collapse
If the SIM card is in, it says "service disabled". Without the SIM card, it says "No SIM inserted"

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