Develop Bugs

unlocked phone suddenly says 'invalid sim'

I broke and replaced the screen in my unlocked upgraded flashed-ROM wallaby and the unit now starts up and reports invalid SIM.
Is there any solution or should I re-flash the rom again and see if that works, hope for the best?

Try the SIM in a different (unlocked) phone, to make sure the SIM isn't fried. If the SIM is fried, you can get a new one from your provider. SIMs do get fried sometimes -- it happened to me a couple months back. Fortunately my provider (Cingular) has a shop just down the road from me, and they burned a new SIM in 5 minutes.

I apologise, I should have said
Sorry, I should have said, it does work in another machine and as I said, it did work immediately I used the xda flashing process to upgrade the ROM in this very unit before I dropped it.
Everything else in the new ROM seems to work which makes it infuriating that it wont recognise the SIM. I even tried calling T-Mobile and asking them if they could see the SIM on their network and they couldn't.
(I even have one of those SIM copying devices they send you free for some unknown reason when they want you to upgrade your service to some kind of higher level SIM card. I was wondering if I should try to use it again but as mine does work, this, like the whole copying device, seemed a bit academic)

"your sim card does not allow the connection to this network" HTC One X

Hey guys!
Ive just woke up 2 days ago with this error "your sim card does not allow the connection to this network" and I have no network signal.
Tried everything, I was on Ordroid 14.0.0 , installed 15.0.0 now im back on stock firmware, still nothing, tried a different sim card and doesn't work (only one from a different country its working)
The sim card I was using for 6 months on this phone is working on any other phone.
Can anyone help me with this issue please?
Thank you very much!

2 scenarios:
1. Your SIM card tray is busted (hardware)
2. Your carrier has banned your IMEI
Did you buy your phone new or used?
Sent from my Nexus⁴ running Unicorns™

TToivanen said:
2 scenarios:
1. Your SIM card tray is busted (hardware)
2. Your carrier has banned your IMEI
Did you buy your phone new or used?
Sent from my Nexus⁴ running Unicorns™
Click to expand...
Click to collapse
Ive gave my Samsung Galaxy S2 for this one and that guy told me it doesn't have the papers anymore.
How come it worked fine for 6 -7 months?

canibus2677 said:
Ive gave my Samsung Galaxy S2 for this one and that guy told me it doesn't have the papers anymore.
How come it worked fine for 6 -7 months?
Click to expand...
Click to collapse
I don't wanna make any scary speculations but it is possible that the phone was stolen/lost and it eventually end up in your hands. Later the original owner requested the carrier to ban the device from it's network.
Again, just thinking out loud here... You should ask your carrier.
Sent from my Nexus⁴ running Unicorns™

I got the same problem with my HTC One S!
1) I check the ESN and it comes available not reported stolen.
2) I did Factory reset and clear all storage as well = nothing!
3) When i go into phone settings it reads the sim card because you can get the phone number and everything other info from the carrier but nothing! Even i change from GSM/WCDMA Auto to GSM only and back and picks up the Network but it doesn't let me connect... im giving up, i just dont know why keeps giving me the same message...:crying:

[Q] Unable to detect sim card

I bought my note 4 on launch day. Ever since then I've had an "unable to detect sim card please restart phone" error. At first it only showed up once every few days, but now it is getting more and more frequent and is happening multiple times a day. After reading starting the phone works fine for a while. I've done everything I can think of (pulling the battery, pulling and re inserting the sim, cleaning the sim), but nothing helps. Anyone else having this issue, or know of a solution? Thank you.

corbs64269 said:
I bought my note 4 on launch day. Ever since then I've had an "unable to detect sim card please restart phone" error. At first it only showed up once every few days, but now it is getting more and more frequent and is happening multiple times a day. After reading starting the phone works fine for a while. I've done everything I can think of (pulling the battery, pulling and re inserting the sim, cleaning the sim), but nothing helps. Anyone else having this issue, or know of a solution? Thank you.
Click to expand...
Click to collapse
I am having the same issue. Not sure of a fix yet but it is getting more and more frequent which worries me.

Same here. :sadface:

Same here! Anybody contact Samsung or Sprint about it?

Same here!!!

Just got my note 4 from Amazon.com. I had been reading about the lte to 3g call drop issue, and someone posted using there sim the card from the phone they were replacing fix this issue. So I put mine in from my s4 before i even turn it on for the first time. The phone worked, but was unable to connet to the 4g (lte / spark ) network. 3g worked fine. I got the message you all are getting (no sim, restart device....). It would happen like every 10 minutes. Once I put the sim that came with the phone in , all my problems went away. Long story short, you need another sim card.

I just called sprint and they are sending me another SIM card. It happens from time to time, but they did tell me if it continues, I can get it replaced for no charge.
Sent from my SM-N910P using XDA Premium HD app

This happened after my sim card swap. It would say "network did not respond in time" then "could not detect sim" then phone would reboot. It did it three different times. Then connection became stable and has not done it again. Not sure if these issues are the same as whats happening here. Just posting my experiences.

I actually bought 2 N910P. I planned on making a little extra money by selling 1 of them, but didn't count on the N910P being so easy to get, so I've held onto the other one for a back up until I found a ROM that I wanted to run on it. Well, I found a awesome ROM & booted up my 2nd N910P & got the message you have all mentioned. I thought it was strange, so I rebooted & got the same message again. After doing this a few times, I thought why not take my SIM card from the 1st N910P & put it in the 2nd N910P. I still got the same message after doing this, so I swapped them back before it messed up my primary SIM card. @Yoshi1221, please keep me/us updated if the new SIM card works for you. Has anybody else got a new SIM card? Also, after installing the 2nd ROM that I was trying out, the fingerprint scanner stopped working. I went back to stock & it still doesn't work, so I made sure that I did a full NANDROID backup on my 2nd N910P in hopes that once I get it working & the fingerprint scanner stops working, I can go back. Anyone else had this trouble?
Edit: I tried to activate my new GN4, but the DEC & HEX numbers were not recoginzed by Sprint.com. So I went into chat & they informed me that it had been turned over to technical support & to contact them again after 24 hours, so we'll see where it goes from there.
Update: Chatted with Sprint & the lady activated the SIM card after giving her the number. Hope this will help out. Just go to Sprint.com & click on the chat button.

Looks like new SIM card is working, but just got it today, seriously had to give up an arm and leg in order for sprint to send me one, but so far it looks like it is working, but just got it today, lol
Sent from my SM-N910P using XDA Premium HD app

Cool, glad it work out for you.

Also found out from a supervisor in the U.S that sprint is now selling GSM phones now. If you take out the SIM card and only receive 3G, you have a GSM phone, if you take out the SIM card and have spark/LTE, you have a CDMA phone
Sent from my SM-N910P using XDA Premium HD app

I had this problem. Sprint sent me a new sim. Fixed the problem for a few weeks but it has returned. Anyone ever get this figured out?

Sim card not found
I had forgetten about this error. Saw that someone suggested a piece of paper between the sim and case cover. I had this happen with a phone I got off a forum. Sent it back and got a replacement. The paper, no matter how thin or thick may or maynot work, and only for a short time. Changing the sim might not work either. You may just need a new phone. I went through all with a s4. Now my note 4 is doing it. I thought it was my recently deceased (July 4) mother was messing with me. One more errand to add to my list for today.

same here?
help plz

Anyone else getting intermittent "No SIM Card" error?

I'm on Verizon, my SIM was a microSIM originally, it came with my Galaxy S3. I cut it down with a SIM cutter a while back to use it with a Moto X (original version), it worked fine for a long time in that phone. I just moved it over to my N5X this morning, and a few hours later the phone has twice told me that no SIM is installed. I had to remove the SIM tray and re-insert it to make it work. Anyone else having this problem?

I cut my microSIM myself freehand and haven't had any issues with it at all. Is it possible that your SIM is dirty/corroded or something? I'd be surprised if the slot on the phone was having issues already.

randman2011 said:
I cut my microSIM myself freehand and haven't had any issues with it at all. Is it possible that your SIM is dirty/corroded or something? I'd be surprised if the slot on the phone was having issues already.
Click to expand...
Click to collapse
I actually polished the contacts a bit before putting it in the 5X. It gave me a No SIM error twice in about 3 hours, but hasn't done it in the last 6 hours or so, we'll see if it comes back. I know MicroSIMs are a little thicker than NanoSIMs, I wonder if the extra thickness caused/causes it. If it comes back maybe I'll try sanding the SIM down a bit.

Jacquestrapp said:
I'm on Verizon, my SIM was a microSIM originally, it came with my Galaxy S3. I cut it down with a SIM cutter a while back to use it with a Moto X (original version), it worked fine for a long time in that phone. I just moved it over to my N5X this morning, and a few hours later the phone has twice told me that no SIM is installed. I had to remove the SIM tray and re-insert it to make it work. Anyone else having this problem?
Click to expand...
Click to collapse
I have been having this happen a couple time a week. I'm in the exact same situation being on Verizon, coming from a Galaxy S3, and I cut my micro SIM down to a nano. Did you sand your cut SIM down or get a new one? If so, did this fix the issue?
Sent from my Nexus 5X using Tapatalk

dmudd said:
I have been having this happen a couple time a week. I'm in the exact same situation being on Verizon, coming from a Galaxy S3, and I cut my micro SIM down to a nano. Did you sand your cut SIM down or get a new one? If so, did this fix the issue?
Sent from my Nexus 5X using Tapatalk
Click to expand...
Click to collapse
I'm still using the same SIM, the problem hasn't recurred so I haven't done anything about it. If it happens again, I plan to sand the SIM down.

Are you talking about a pop-up error, or just it saying "no sim" in the upper right hand side of the screen? I have it take a little bit to recognize after some reboots, but it always recognizes it after 5-10 seconds. I have a brand new sim from t-mobile that I have been using, so it would not be related to a cut sim or anything like that.

Jacquestrapp said:
I'm on Verizon, my SIM was a microSIM originally, it came with my Galaxy S3. I cut it down with a SIM cutter a while back to use it with a Moto X (original version), it worked fine for a long time in that phone. I just moved it over to my N5X this morning, and a few hours later the phone has twice told me that no SIM is installed. I had to remove the SIM tray and re-insert it to make it work. Anyone else having this problem?
Click to expand...
Click to collapse
Yes!
I had a microSIM cut down and got the issue. Went and got a new nanoSIM still having the issue.
Annoying.
Sent from my Nexus 5X using Tapatalk

This happened to me again, so I finally just asked Verizon for a new nanoSIM and now it's been a week or so with no problems.

I to am on Verizon. And had my sim cut since I am coming from the g4. And have it pop up saying no sim twice. And I removed the sim and reinstalled it and rebooted the device and usually works. But i hope its just something that will work itself out

Yes it's been doing this for a week since I've had my Nexus 5X, I just had to reboot it to have the sim recognized again. And this morning it says "no sim card" no matter what I do. If i remove the sim and plug it back in, sometimes it will work and last for a minute and then again "no sim card". I'm really pissed. I'll try the sim in another phone to see whether or not the problem comes from there.

So question for Verizon ownwers. I got a nano sim card but need to activate it. Can I activate it with a Verizon phone even if it uses a micro sim? Only ask because I came from the g4 and I cut it but I'm trying to get this nano activated to try and eliminate the no sim.

STIKID said:
So question for Verizon ownwers. I got a nano sim card but need to activate it. Can I activate it with a Verizon phone even if it uses a micro sim? Only ask because I came from the g4 and I cut it but I'm trying to get this nano activated to try and eliminate the no sim.
Click to expand...
Click to collapse
I just called customer service to activate the sim card and then popped it into my phone. They didn't give me any trouble.

They don't need to activate the sim card to a phone or need an imei?

STIKID said:
They don't need to activate the sim card to a phone or need an imei?
Click to expand...
Click to collapse
I called Customer Service and got them to send me one by telling them that I was going to by a Verizon HTC One M9 from a friend. Then when I got the SIM, I just called them again and they activated it for me no problem. I don't remember them asking me for which phone again.
I have seen in other threads on here where people have said that Verizon will activate the SIM card in store even if you tell them its for the Nexus 5X; so, activating over phone or in store should be no problem.

Problems with new SIM card LG G3

Hi there,
I am a so far satisfied owner of a G3 but since 10 days I have been having an issue with my G3 and I wanted to ask around if someone here has an idea or some thought that could help.
My situation is the following:
About 2 weeks ago I switched my mobile service provider. When my new SIM card from my new provider arrived I tried the SIM card in my G3 but there was just the massage "no sim card found" and no possibility to type in your PIN. So I thought maybe I got a defective SIM card, it happens. I ordered a new one but the problem remained with the new card in my G3 aswell, still no pssibility to type in my PIN. So I tried troubleshooting and started trying the SIM cards in diffrent phones. In other phones the SIM card from the new provider worked perfectly and I was able to type in my PIN like it should be. When I tried putting other SIM cards in my G3 (from my Mom, Dad etc. and also from different providers) none of them worked in my G3. Even my sisters SIM card from the same new provider AND she has also a G3. So far it seems that the my G3s SIM card reader is broken.
The weird thing is that when I put in my G3 my old SIM card from the old provider the prompt to type in my PIN appears as normal as ever. If I type in my PIN the phone accepts the PIN normally. There is just no reception which is normal because I am not with my old provider anymore. I also have to add that the phone appears not to have SIM lock. I bought it from a private seller but he bought the G3 with a vodafone contract and I was with O2 at that time and the phone worked perfectly. Just until I switched from O2 to Congstar (Telekom) the problem began.
So I thought I just send it back to LG because I still have warranty on the device. The phone is rooted so I need to admit that it was not that clever to send the phone in without rolling back the rooting. Today I got a letter from the repair service from LG with an estimate of cost which means no surprise, no warranty for me. You guess right, the reason is the rooting they write they need to change the whole mainboard. For me this sound like plain bull**** because on the document they send it seems like the first thing they check is a rooting and if the device is rooted then thats the cause. But ok it was pretty stupid from me not to unroot it, I know.
Now I wanted to ask you if someone had a similar problem with their G3 or has an idea what the cause could be. Like mentioned above with my old SIM card the phone worked normally. Just the new cards and all other cards, even another O2 card did not work. Is it possible that just one and only one SIM cards gets accepted from the phone?
Sorry for the long post. I am thankful for any advice.
Best regards,
Patrick

I'll have my phone back tomorrow. If someone still has an idea I would be very thankful about some thoughts or suggestions.
Thanks!
Gesendet von iPhone mit Tapatalk

It seems your phone is Sim locked.
You need to find the unlocking code that you need to put in the hidden menu.
Google for LG G3 Sim unlock.
Sent from my phone

Hi,
thanks for your reply! Iam not sure it is because of sim lock- Because the phone came with a vodafone contract but when I bought it I was with O2. And with my old sim card from O2 the phone worked perfectly. Weird is that when I put in a different O2 sim card the pin prompt also did not appear. Same with any other sim card ...
Thanks,
Patrick

Or did maybe someone have a similar experience with a different phone?
Gesendet von iPhone mit Tapatalk

Hi again,
I tried some more things but still nothing helped.
The things I tried were:
- unrooting the phone and factory reset
- reflash radios
- try completely diffrent rom (CM)
Still I have no idea what the cause could be. Maybe the sim card reader is just broken. Just weird that it reads my deactivated sim card.
I would really appreciate it if someone has an idea or some similar experience..
Thanks!

You can buy an unlock code for 3.5-4€ , works for any LG G3 variant
Try it

Ok, thanks! I will try it!

So I just looked at what I have to do and tried the combination 2945#*855# to see where I have to type in the code. The thing is when I choose any one of the appearing options like netlock etc. the phone says "this phone is permanently locked" and there is no possibility to type in any code...
How the hell is my phone completely locked...