[H818P] SIM not detected - G4 Q&A, Help & Troubleshooting

so it was going well till i refurbished an african kdz over camuix 4 and phone couldnt detect the sim. then i got an ARE kdz(cuz im from iran) and reflashed. i even tried to put another sim in or swap to another sim slot but nothing changed
https://forum.xda-developers.com/picture.php?albumid=14406&pictureid=56105
https://forum.xda-developers.com/picture.php?albumid=14406&pictureid=56106
any ideas? thanks for reading

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No SIM card

Hello I have an unlocked SGH-T989D phone but the problem is it will only detect sim cards from Koodo even though it is unlocked, I've tried flashing many different roms and different radios but nothing is working. Currently on stock 4.0.4 /T 989UVLE1, yes the phone is unlocked I checked multiple times. Anyone know how to fix this?
ZYXWABCD said:
Hello I have an unlocked SGH-T989D phone but the problem is it will only detect sim cards from Koodo even though it is unlocked, I've tried flashing many different roms and different radios but nothing is working. Currently on stock 4.0.4 /T 989UVLE1, yes the phone is unlocked I checked multiple times. Anyone know how to fix this?
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Click to collapse
How do you check if a phone is unlocked if any SIM you try from another company is not read by the phone?
I think you need to try the unlocking procedure again, I don't think it was properly unlocked
ShaDisNX255 said:
How do you check if a phone is unlocked if any SIM you try from another company is not read by the phone?
I think you need to try the unlocking procedure again, I don't think it was properly unlocked
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Click to collapse
Hi when I go to the dialer and type *#7465625# it says [NETWORK LOCK] OFF
ZYXWABCD said:
Hi when I go to the dialer and type *#7465625# it says [NETWORK LOCK] OFF
Click to expand...
Click to collapse
What method did you use to unlock it?
I did it with this (http://forum.xda-developers.com/showthread.php?t=2024514) and not a single time was I asked to check with the code that you have showed me
This IS for the T989 though, not sure if you can use it for the T989D or if it's different in a way.
Sorry that I can't help, I hope you get the answers you are looking for
ShaDisNX255 said:
What method did you use to unlock it?
I did it with this (http://forum.xda-developers.com/showthread.php?t=2024514) and not a single time was I asked to check with the code that you have showed me
This IS for the T989 though, not sure if you can use it for the T989D or if it's different in a way.
Sorry that I can't help, I hope you get the answers you are looking for
Click to expand...
Click to collapse
My brother used that method a long time ago and he was able to use different carriers, but now nothing works but Koodo, and I never get asked for an unlock code, just says 'No SIM card'
ZYXWABCD said:
My brother used that method a long time ago and he was able to use different carriers, but now nothing works but Koodo, and I never get asked for an unlock code, just says 'No SIM card'
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Click to collapse
Yeah, this phone will not ask you for an unlock code, if you follow the procedure correctly it will read any other SIM card on it's own
Try unlocking again with what you have, the stock 4.0.4 and UVLE1 combination, it should be the right one. Do the procedure again until it reads the SIM card you want.
Another possible problem could be that your SIM is damaged or not well placed. It happens to me when I try to fit a Micro SIM on it, if it is not well placed it will not detect it. Try using other SIMs or try it on other phones to see if your SIM is the problem
ShaDisNX255 said:
Yeah, this phone will not ask you for an unlock code, if you follow the procedure correctly it will read any other SIM card on it's own
Try unlocking again with what you have, the stock 4.0.4 and UVLE1 combination, it should be the right one. Do the procedure again until it reads the SIM card you want.
Another possible problem could be that your SIM is damaged or not well placed. It happens to me when I try to fit a Micro SIM on it, if it is not well placed it will not detect it. Try using other SIMs or try it on other phones to see if your SIM is the problem
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I tried unlocking it again, doesn't work, tried different sims, and still doesn't work, but those other sims work on different devices. Only the Koodo one works on mine, which was what it was locked to before unlocking.
ZYXWABCD said:
I tried unlocking it again, doesn't work, tried different sims, and still doesn't work, but those other sims work on different devices. Only the Koodo one works on mine, which was what it was locked to before unlocking.
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Well in that case I'm all out of ideas.
One final question, when you insert a SIM on your T989D that is NOT Koodo, do you get an "Invalid SIM", "No SIM" or just an empty signal bar?
ShaDisNX255 said:
Well in that case I'm all out of ideas.
One final question, when you insert a SIM on your T989D that is NOT Koodo, do you get an "Invalid SIM", "No SIM" or just an empty signal bar?
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Click to collapse
It says "No SIM card.|Emergency calls only"
ZYXWABCD said:
It says "No SIM card.|Emergency calls only"
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Click to collapse
My conclusion is that it's having a hard time reading the SIM card. When you put another companies SIM card in to a LOCKED phone, it will show as invalid SIM (sometimes it even shows signal but is unusable). Since it says "No SIM card", I believe it's more of a hardware problem than a software one.
All I can think of is try moving the SIM card around, turn on. If nothing changes turn it off and move a little again, the turn on and repeat until it reads it.
Apart from that, I have no clue what could be wrong with the phone.
Turn on your phone without any SIM. If you get the same message (No SIM card.|Emergency calls only|) then it is most definitely your phone not reading your SIM correctly. If you get Koodo signal WITHOUT any SIM inserted (which I doubt but it CAN happen) then that means you have a faulty SIM Card Reader on your phone.
ShaDisNX255 said:
My conclusion is that it's having a hard time reading the SIM card. When you put another companies SIM card in to a LOCKED phone, it will show as invalid SIM (sometimes it even shows signal but is unusable). Since it says "No SIM card", I believe it's more of a hardware problem than a software one.
All I can think of is try moving the SIM card around, turn on. If nothing changes turn it off and move a little again, the turn on and repeat until it reads it.
Apart from that, I have no clue what could be wrong with the phone.
Turn on your phone without any SIM. If you get the same message (No SIM card.|Emergency calls only|) then it is most definitely your phone not reading your SIM correctly. If you get Koodo signal WITHOUT any SIM inserted (which I doubt but it CAN happen) then that means you have a faulty SIM Card Reader on your phone.
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It works on Koodo but only if the sim is inserted, also I tried moving the sim around and it still isn't reading. I think this is a software issue.
ZYXWABCD said:
It works on Koodo but only if the sim is inserted, also I tried moving the sim around and it still isn't reading. I think this is a software issue.
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Click to collapse
bump
Sorry man, I'm all out of ideas. I mean I've experienced the problem with the "No Service" thing, but I basically fix it by switching to 2G since I know there are some areas that I can't get 3G coverage. As for your problem, it's basically not reading your SIM entirely (by either software or hardware issues) and I wouldn't know how to get around that.
Best of luck to you

No SIM card inserted after unroot and upgrade

As above really. Not really sure if it's a hardware or a software error here. I've read that the sim card readers can be a little fragile but there was no fuss during the removal so I would be surprised if that was the issue. What I'm wondering is if I've missed something when un-rooting my phone.
I was using a custom ROM, all working fine, but I've got a new phone so I decided to unroot my old one to sell on. I flashed my original firmware using the LG Flash Tool. Firmware file is "UK Vodafone 16G D85510A_00.kdz". It all went great as far as I could tell and I started upgrading. The final upgrade was the install of Marshmallow 6.0.
In order to find out if my phone was locked or not I put my Wife's SIM in. Rather than coming up and asking for an unlock code it simply stated that there was no SIM inserted. I thought that was potentially down to the wrong SIM being in but when I tried mine I was met with the same error.
Have I missed something? Did I need to change the baseband or something during the process?
Any help would be greatly appreciated.
Thanks
I've had kinda same problem since a couple of weeks ago...eventually SIM card gets read for a short while and get back to that No SIM card inserted state.
It has happened with any ROM as well as OG FW flashed through LG tool.
I haven't tried another SIM on my G3 but my SIM does work on other cell phones.

sim card.

my vs985 is 1 yr old,rooted,all of a sudden my phone starts this problem with sim card non read..I've kdz,and tot all the way back to 10b,phone works great at10b,then stumproot(xda) and sim cards unreadable,or searching for global reading,it doesn't makeany difference to the setting of global or CDMA etc,after 10 times I still lose sim card when I root,I am on 10b root now however to twrp to jasmine or 47a I lose the sim. I'm staying on 10b root for now as i have no choice,any help is greatly appreciated..
jlb1959.01 said:
my vs985 is 1 yr old,rooted,all of a sudden my phone starts this problem with sim card non read..I've kdz,and tot all the way back to 10b,phone works great at10b,then stumproot(xda) and sim cards unreadable,or searching for global reading,it doesn't makeany difference to the setting of global or CDMA etc,after 10 times I still lose sim card when I root,I am on 10b root now however to twrp to jasmine or 47a I lose the sim. I'm staying on 10b root for now as i have no choice,any help is greatly appreciated..
Click to expand...
Click to collapse
You'll need to flash the 35b bootstack before you flash the ROM for things to work properly on 47a(not sure about jasmine). Read bullet point 5 for a link for the boostack... https://forum.xda-developers.com/ve...t/vs985-46a-stock-flashable-firmware-t3304365
did that.my phone started acting up that my sim was searching for global setting while on 47a for over a year,was giving a suggestion to tot back to stock the start over at 10b,my problem is whether I tot or kdz as soon as I root with stump(from xda site) I get sim non readable and searching for settings.this happens well before I even get to bootstocks,or ROMs.this is while trying to get it rooted on 10b,I've read many people are having a problem with sim cards..obviously tot/kdz gets me to stock with no problem,but trying to get from 10b upgraded is where the sim acts up..
as of now,it works and doesn't work.nothing to do with bootstacks,as I'm on 47a and it didn't work,I rebooted and it did work..then 2hrs later it screwed up again..not sure what it is....
download network settings guru apk and choose bands or *#*#4636#*#*
maybe your problem is something else...
https://forum.xda-developers.com/lg-g3/help/sim-card-t3472164/page3
jlb1959.01 said:
did that.my phone started acting up that my sim was searching for global setting while on 47a for over a year,was giving a suggestion to tot back to stock the start over at 10b,my problem is whether I tot or kdz as soon as I root with stump(from xda site) I get sim non readable and searching for settings...
Click to expand...
Click to collapse
OK...I really need to read more gooder So root is killing your signal somehow. Strange...
Can you grab some logs and post them please? Maybe a log before root when things are working, and one after root with a toggle of airplane mode a couple times to see if it kicks an error into the log and hopefully provide a lil info.
Also, does anything in the "about phone" settings info change after you root/lose service? For ex: unknown baseband, no imei, etc.
yes that's the main problem,I lose ime as well as phone number,and the phone says no sim card,and searching for global setting..if I reboot I may get sim card working but 9 out of 10 times the phone sim is unavailable.example is today,all day the phone worked great,then all of a sudden it lost sim card,no imie,phone number..after pulling battery and rebooting 3 times its working again.I'm on rooted 47a.
+1 For network signal guru, I had to unlock the other bands using that program. It took a few minutes.
It seems that the Verizon variants soft-lock the radio bands.
update this morning,when turning on my phone,it reads sim card searching for global settings,after pulling the battery it reboots and reads sim found,search for settings,global found,and phone works normal??, now if I tot to stock,phone is normal at 10b,then root,twrp etc and sim card will not read,after pulling battery it reads sim searching for global settings,4,5 seconds and phone is OK,then bootstacks,47a and lose sim,then pull battery and go thru the exact same thing,now I've gone to Verizon when sim is unreadable and with a new sim I still get unreadable sim,with no imie,no phone number??...

Possible SIM Unlock from your carrier

Hii to all
Now I have to say something for most users who have bought it
over some carrier on contract like I have done
I asked when I was buying K5 PLUS are all sim slots locked to the provider I bought from?
She checked it for me on paper and said, yes, the phone can only be used with the carrier
SIM cards only and that was for both slots...
Well I was lazy to check when I got home if she was right or wrong...sometimes they do
not have the right information
But today after QFIL and after i Installed the firmware with QFIL
I tried a different carrier sim card in the sim slot 2 and it works
Both cards works
Tested so far..
So, maybe a try for someone locked to some carrier..
Good luck with flashing and just do it exactly step by step all of
you should not have any issues

Invalid SIM card error

I got Moto z2 force from USA that was on sprint, it was working fine with my sim for some time but with last android update i got "Invalid SIM card" error and now I can't connect to my mobile network at all. I had some problems with SIM reading pins but it was fixed, i am worried that it got locked to Sprint again so my first guess is to unlock it, and I haven't been able to find any way to unlock it for all networks.
I am open to changing rom or installing custom one if that would fix my problem.
Ok, after much messing with a lot of stuff i found something that worked.
I had to remove my sim card, install clean system (I used NASH_SPRINT_OCX27.109-48) and after that insert SIM back in and it worked just fine.
Hope this will be helpful for someone else.

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