Nexus 4 - SIM problem - Nexus 4 Q&A, Help & Troubleshooting

Hello,
I just got a Nexus 4 16GB (had a 8GB before) and I've to reenter my PIN code almost every time I'm unlocking the phone when it has been in deep sleep. (the card is locked and the phone is disconnected from the network)
I first thought it's caused by custom ROMs, but it's even happening on stock ROM/kernel...
Am I the only one with that kind of problem ?

If you get the sim pin wrong a couple of times, the card is locked and you need to call your provider for a personal unlock code.
If you keep trying to unlock it eventually the sim will simply become inoperable and you'll need a new one.

I can unlock it without a problem after entering my correct pin.
So it is not a problem with the SIM or my provider.

Go into Settings > security and then there should be an option along the lines of Sim card lock. Try checking in there.
Sent from my GT-I9100 using xda premium

Disabled the pin lock for now.. But the signal still drops when the phone is longer in deep sleep.

I had the same problem!
I don't know if this is rom or kernel related, but since I switched to ParanoidAndroid it's gone....

Ah finally someone with the same problem.
I've already been running PA, but the problem did still exist.
Did you change anything else beside that?

i removed my SIM again and cleaned it.

i've also had that issue the second day after receiving the phone. I removed the sim, put it back in but that didn't help - i looked at my sim card tray and i realized that a one side of the sim card chip was close to one metal side of the tray and i figured that could be the issue - so what i did is i took a stripe of adhesive tape and made sure they wouldn't touch - I haven't had the issue again and it's been more than 2 weeks.

Uh...I remember a kernel arg from my old HTC Topaz WiMo-Device, which was able to run XDAndroid.
The argument was pm.sleep_mode, and it is still available on the Nexus 4 and set in the system/build.prop
It controls, how the device handles locking, usually it is set to 1, but, i think, it goes from 5 to 0, where 5 is "stay on all the time" and 0 is "shut down everything when locked".
You could try to swich it to 2 or 3, maybe it helps.

I got a replacement phone which is working fine now.
Thanks for the tips anyway

hmm got a 16gb one and the Sim keeps disconnecting even without deep sleep.
might need to send it back too. poop

Hi,
I got the same problem too.
Sometime, it's getting worse and worse so I have no other choice but to reboot the phone --> When I put my PIN code and press the validation button, the screen doesn't go to the main menu but asks me again about my PIN code. Infinite loop...
I cleaned the SIM card 15min ago and no problem since (fingers crossed). I read an alternative version of android solved the issue in one case but not always. I won't take that risk if I have to send it back to the manufacturer. Before I do that, could you suggest me something else to try ?
Many thanks for your help.
Best,
Valentin

I had the Nexus 4 since December and yesterday for the first time the phone asked for the PIN code and lost the connection to the network. And like posytryon I had to enter the PIN more than once (in my case it was "only" twice). This morning it already happened twice again. Never rooted the phone, stock Android on it. What is going on?

Why are you people so paranoid? I've never used a lock on mine. In all these years....
Just asking for trouble using sim lock IMO.

What kind of silly reply is that? Why is it asking for trouble using SIM lock??? And if you read through this thread, someone had the same problem of the phone not connecting anymore even without SIM lock.

I pulled my sim yesterday because I switched users now it says no sim I put old sim in same problem flashed new rom nothing...
(CRAZY TIMES)

lucker#1 said:
i've also had that issue the second day after receiving the phone. I removed the sim, put it back in but that didn't help - i looked at my sim card tray and i realized that a one side of the sim card chip was close to one metal side of the tray and i figured that could be the issue - so what i did is i took a stripe of adhesive tape and made survey they wouldn't touch - I haven't had the issue again and it's been more than 2 weeks.
Click to expand...
Click to collapse
Thank you so much this fixed my problem!!! :beer:
Again thank you so much!!!
(Mathew 5:44)

lucker#1 said:
i've also had that issue the second day after receiving the phone. I removed the sim, put it back in but that didn't help - i looked at my sim card tray and i realized that a one side of the sim card chip was close to one metal side of the tray and i figured that could be the issue - so what i did is i took a stripe of adhesive tape and made sure they wouldn't touch - I haven't had the issue again and it's been more than 2 weeks.
Click to expand...
Click to collapse
I'd noticed the same thing, and insulating the SIM from the holder resolved the problem for me also.
I also found an app for monitoring and alerting if the phone switched back to asking for the SIM PIN, this might be useful for others.
SIM Locked Notifier - https://play.google.com/store/apps/details?id=org.slaytanic.SIMLockedRingNotifier

Finally put some adhesive between the tray and the SIM card. Worked perfectly for me too, no SIM problem for 10 days now.
Thank you so much, Lucker#1.

Related

SIM card not inserted - anyone else had this problem?

Hi all,
Just got home, looked at my mobile and it said there was no signal - so I turned it off and back on again, then it said there was no SIM inserted. Keep restarting the phone, keeps saying the same thing. Why?!
Am going to try it in my old SE K850i to see if it's the SIM card or the phone at fault.
In the mean time, does anyone else know of this fault and how to fix..?
I didn't the drop the phone or anything, it was just in my pocket, on it's own - like it always is!
Cheers
Tried it in my K850, works fine. Please someone help
yeah i usually dont put the sim card all the way in but slightly in and it works
I've re-opened this thread due to me misreading....DOH! Apologies (Mental note to one self.......follow own advice and read before posting).
Ta
Rick
you could try to clean the contacts on the sim card connector of the phone with a q-tip, and see if that solves the problem.
also check if any of those contacts appears to be bent or something, and so doesn't make a connection with the card.
Everytime I open the back up to remove the SD card, I get the SIM card missing bit even though I have not touched it! My HD is only 3 months old and it has done this from the start. I just have to remove it a bit - shove it back in and the phone accepts it is there. Annoying but not enough for me to send it back.
hmm, maybe try to make the sim a bit thicker so it doesnt move around (it shouldn't move by removing the back cover, but it seems to happen on your phone / sim combination.
try putting a thin piece of paper on top of the sim (not the contacts side, but the side facing to the battery cover)
maybe that prevents this problem?
Missing simcard
I have the same problem with my simcard. Though something strange happens when the phone is off for more then 10min, it works fine and notices there is a simcard for like 30 sec after which the error pops-up again. I have tried all of the above things, my simcard works fine in my other phone, adding some paper to thicken it doesn't work either
Anyone who could help me with this?
P.S. sorry for the bad english
As in post 7# written, put some papersheet in the simholder above your simcard to increase the contactpreasure. This surely helps.
Tis trick is also useful for all dualsim users who thik the dualsimadapter does not work in their device (but after using this trick get astonished!)
for Thysiey:
Try to switch to Gsm mode to test . Maybe you have bad umts signal? Happens at other places too, or only at one place?
Got the same issue here...
I cannot move the SIM because it is being hold in place by the battery. (to little room)
Adding a piece did not work either.
Anyone got another solution?
anyone? My mothers HD just got this problem now. She has a new phone and for the contract renewal she had to read the backside of the sim. The phone all of a sudden didn't recognizes the simcard anymore.. I tried a few other simcards but it won't read it anymore.
My plan was to sell the old phone but now it's almost worthless just a shame it is still a great phone to operate.. handy with the navigation and all

NO SIM Card Inserted

Hey,
I keep getting this annoying message " NO SIM Card Inserted " and my trick is to turn the Airplane mode on/off for a couple of times so the SIM card is recognized again. But this is getting worse, I'm having this error the 4th time today and having to switch the airplane mode on/off for countless times before it works.
Anyone else having this problem?
Should I get my tab to service?
Samsung Galaxy Tab 2 7.0 P3100, Android 4.0.3 stock
Noboby having this issue?
I have it too. I think it's just the default message if there is no sim card inserted. When you put one in, it goes away. I don't really mind it. What I DO mind is a "--" symbol in the bottom notification bar. I used to be able to see the Weatherbug Temp or the Battery status percentage there, now I can't. Can't figure out how to get rid of it. (--)
Maybe I wasn't that clear, but I have an Orange sim in it.
Yesterday this problem with the sim was worst than ever so I'm going to Orange for a fix. Hoping that another sim will just do the trick.
i got a broken sim once after some rooting and flashing custom rom's
in my case it was clear the sim (because everithing worked well with an other sim)
and my sim was relay old (around 7 years). So try with another from a friend and you know. :good:
So it seems that I had a faulty sim and everything is ok since I got a new one. Problem solved.

[D802]Sim tray Problem[Anybody else?]

I recently got my lg g2 d802 intntl
And I noticed my network seemed to drop a few times.
My network used to go and my phone stayed on emergency calls only for a long time
I rebooted several times ,pulled out the sim card etc
I thought it was a SW problem but I realized its happening due to a faulty sim card
Now what I realized was that the back of the sim card (the golden part) gets a 3 scratches on it every time I pull out the sim card along with the tray
And it gets worse every time I do it.
Anybody else have this issue?please let me know
varund7726 said:
I recently got my lg g2 d802 intntl
And I noticed my network seemed to drop a few times.
My network used to go and my phone stayed on emergency calls only for a long time
I rebooted several times ,pulled out the sim card etc
I thought it was a SW problem but I realized its happening due to a faulty sim card
Now what I realized was that the back of the sim card (the golden part) gets a 3 scratches on it every time I pull out the sim card along with the tray
And it gets worse every time I do it.
Anybody else have this issue?please let me know
Click to expand...
Click to collapse
why wud u pull the sim out so often?
Gotta love how this thread got moved to the development section coz it has a [D802] tag for whatever reason the OP put that there.
Your simcard might be old or too scratched up, either by this phone or another. I have only taken out the tray once to put my card in. I would reccomend you get a new sim card, usually you get them for free if you go to a store. If the problem persists, it might be something in the phone, if not, be happy and dont take it out every 10 seconds to check how scratched it is.
wargreymon89 said:
Gotta love how this thread got moved to the development section coz it has a [D802] tag.......
Click to expand...
Click to collapse
Moved to the Q&A section

[SOLVED ]Nexus 6P - No service message

Hi all!
I've bought a Nexus 6P in september 2016, worked fine in every part until yesterday: my phone stopped showing signal strenght and says "No service" in the upper left corner of the screen.
I was on a custom ROM (Pure Nexus) but:
- Restoring factory images didn't help
- Restoring the oldest Marshmallow factory image didn't help either
- Erasing cache didn't help
- Switching to 2G and 4G didn't help
- I did a network settings reset, nothing changed
- I've switched to a new SIM card, nothing happened (old SIM card worked well on other phones, like this new one)
- I've never touched EFS partition but my IMEI is still there, so i don't think it's a network problem
So... Any ideas?
Oh man... I was hoping it was just me. This has happened to me too within the past few days, twice.
After waiting a few minutes it came back. It *May* be they are doing tower work. That's what I'm hoping.
I am on Verizon Wireless on the 3.79 radio if that helps add info to the pile. What radio are you on?
bigblueshock said:
Oh man... I was hoping it was just me. This has happened to me too within the past few days, twice.
After waiting a few minutes it came back. It *May* be they are doing tower work. That's what I'm hoping.
I am on Verizon Wireless on the 3.79 radio if that helps add info to the pile. What radio are you on?
Click to expand...
Click to collapse
I'm on the same radio, latest radio in latest 7.1.1 release, january security patch, as i said before, installing the oldest Marshmallow release (so the first radio released by Google) didn't change anything!
My provider is Vodafone IT, I don't think they are doing some tower work, because everything works fine on other phones and the same SIM card in!
Good day,
Got same issue few days ago, after phone restarted due to installing January security patch. Phone was not rooted on stock firmware 7.1.1 with locked bootloader.
Cellular network don't work at all, if try to find network manually it return: Error while searching network.
In *#*#4636#*#* all switches in OFF position and cannot switch on. IMEI available.
Also when try to make a call(without network of course) it return: Turn off airplane mode to make a call. Of course it not turned on.
I try flash vendor, bootloader, baseband/radio(3.72, 3.78) previous stock firmware 6.0 and 7.0.
When flash cyanogenmod 14.1, SIM card was not detected.
Carrier Elisa (Estonia), bought in November.
Any ideas?
If you're not on Verizon, I would just switch back to 3.78 radio. Flash it manually. Don't see how that wont fix your issue
bigblueshock said:
If you're not on Verizon, I would just switch back to 3.78 radio. Flash it manually. Don't see how that wont fix your issue
Click to expand...
Click to collapse
Hi mate, a friend of mine have a Nexus 6P, we are on the same carrier and the same 3.79 radio, everything works fine on his phone!
So my problem is not radio realated!
Radio 3.79 is also good for other carriers over Verizon.
Hateware said:
Hi mate, a friend of mine have a Nexus 6P, we are on the same carrier and the same 3.79 radio, everything works fine on his phone!
So my problem is not radio realated!
Radio 3.79 is also good for other carriers over Verizon.
Click to expand...
Click to collapse
Hardware problem with Huawei. The gold contacts on your SIM card are not making contact as they should. Likely a problem with the SIM tray.
Eject SIM card and put some scotch (cello) tape over the card to hold it in the plastic tray. You may need two strips (I did.) Now reinsert the SIM tray. All should be well now with your cellular connection.
Added thickness of the tape holds the SIM contacts to the connectors inside the phone tighter when the tray is closed and the problem is solved.
I did this about three months ago when I started having this problem and have been fine since.
stander01976 said:
Hardware problem with Huawei. The gold contacts on your SIM card are not making contact as they should. Likely a problem with the SIM tray.
Eject SIM card and put some scotch (cello) tape over the card to hold it in the plastic tray. You may need two strips (I did.) Now reinsert the SIM tray. All should be well now with your cellular connection.
Added thickness of the tape holds the SIM contacts to the connectors inside the phone tighter when the tray is closed and the problem is solved.
I did this about three months ago when I started having this problem and have been fine since.
Click to expand...
Click to collapse
Thanks mate, i will try but my phone says "No service", not "No SIM card"!
Thanks anyway!
stander01976 said:
Hardware problem with Huawei. The gold contacts on your SIM card are not making contact as they should. Likely a problem with the SIM tray.
Eject SIM card and put some scotch (cello) tape over the card to hold it in the plastic tray. You may need two strips (I did.) Now reinsert the SIM tray. All should be well now with your cellular connection.
Added thickness of the tape holds the SIM contacts to the connectors inside the phone tighter when the tray is closed and the problem is solved.
I did this about three months ago when I started having this problem and have been fine since.
Click to expand...
Click to collapse
Also not work for me, thank for your reply.
After factory reset phone detect carrier language and also install APN of my sim carrier but no signal.
m03r said:
Also not work for me, thank for your reply.
After factory reset phone detect carrier language and also install APN of my sim carrier but no signal.
Click to expand...
Click to collapse
Hi mate, my Nexus 6P has exactly this behaviour at avery factory reset!
We are on the same boat!
Hateware said:
Hi mate, my Nexus 6P has exactly this behaviour at avery factory reset!
We are on the same boat!
Click to expand...
Click to collapse
Read this productforums.google.com/forum/#!topic/nexus/LLt6mlP_nto looks like hardware trouble. I cannot use warranty service at present, I'm at sea for 2 month
m03r said:
Read this productforums.google.com/forum/#!topic/nexus/LLt6mlP_nto looks like hardware trouble. I cannot use warranty service at present, I'm at sea for 2 month
Click to expand...
Click to collapse
Yeah, me too, I've bought my Nexus 6P trough eBay and was a private seller, it seems that private sellers are not required to provide a warranty...
Hateware said:
Yeah, me too, I've bought my Nexus 6P trough eBay and was a private seller, it seems that private sellers are not required to provide a warranty...
Click to expand...
Click to collapse
If you buy from EBay your only warranty option is Square Trade but if your phone was bad when you got it you can file a buyer protection claim
UP!
Noone else had this problem?
Hateware said:
UP!
Noone else had this problem?
Click to expand...
Click to collapse
It seemed like other people did report having the same problem and their solutions, if they had any. Maybe you should contact your carrier. They might see a problem on their end.
Hateware said:
UP! Noone else had this problem?
Click to expand...
Click to collapse
I know you tried an old SIM, but have you been up to Vodafone to get a new replacement SIM as the next step? In my experience they are happy to replace at no charge. If Vodafone IT's new SIM doesn't work, just try a 3 ITA or TIM.
had this issue ONCE, and flashing the proper vendor file again fixed it.
no idea how or why
v12xke said:
I know you tried an old SIM, but have you been up to Vodafone to get a new replacement SIM as the next step? In my experience they are happy to replace at no charge. If Vodafone IT's new SIM doesn't work, just try a 3 ITA or TIM.
Click to expand...
Click to collapse
I've already switched to a new SIM card, like I said in the first post!
Soulfly3 said:
had this issue ONCE, and flashing the proper vendor file again fixed it.
no idea how or why
Click to expand...
Click to collapse
Thanks but I've already re-flashed factory image, so vendor is built in the restore procedure!
So I had an interesting experience with the same thing. Was running a custom rom that is very close to stock and updated to the most recent security update. Shortly thereafter, my carrier connection would drop (didn't notice at first because if I was connected to WiFi, it would be hard to tell). Only a reboot of the phone would fix it, for often no more than an hour or 2. So I started by wiping the device. Then I went to a different custom rom. And then finally, I went back to stock using "flash-all.bat" from the factory image. But alas, the issue continued. The last thing I did, which seems to have resolved it so far (12+ hours without a disconnection), was to relock my bootloader. Just in case it helps someone else. Is it possible that the new radio + an unlocked bootloader is causing the issue?
locked and unlocked bootloader,
hard factory reset,
flash google factory image and erase all internal storage,
wiped dalvic/cache,
flash vendor image,
flash different radio and bootloaders,
but still no service and no data. i think it's hardware issue and i have no warranty

Fixing no sim card detected and no service

Dears
Facing the problem of no service and no sim card detected on my v20 after a reboot or randomly ,i ve tried every thing and found out that the problem is coming from the sim card reader ,there is a space left between the sim card and the reader causing the problem ,the fix is to full the space with a small paper or something to force the sim card into the reader
I know this is a necro post, but I wanted to confirm that this DOES indeed work. I got a second hand V20 from eBay today and couldn't get the thing to recognize the SIM Verizon was giving me at all. Gotta go back tomorrow to have them activate it now that I know this trick works on this phone!!
ShadowEO said:
I know this is a necro post, but I wanted to confirm that this DOES indeed work. I got a second hand V20 from eBay today and couldn't get the thing to recognize the SIM Verizon was giving me at all. Gotta go back tomorrow to have them activate it now that I know this trick works on this phone!!
Click to expand...
Click to collapse
Hey, could you share a picture showing the way in wich piece of paper is placed. Thanks!
ondaparticula said:
Hey, could you share a picture showing the way in wich piece of paper is placed. Thanks!
Click to expand...
Click to collapse
I ended up sending the phone back for exchange, after a small 1" drop the SIM was dislodged and the adapter broke and got a new one which didn't have the issue, so I unfortunately don't have any pictures. The best way however to place it is to ensure that it is directly over the SIM card and goes into the slot with your SIM, it should be providing some pressure on the back of the SIM to push it into the slot firmly, but not bulge the MicroSD adapter's metal too much, if you've done that, a fall may just break your SIM reader.

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