Randomly presenting SIM pin code screen when waking phone from standby - Nexus S General

I've had a repeated problem (around 4 times so far) where my phone mobile radio must have died/reset while the phone was on standby with the screen off. When I wake the phone I am presented with the SIM pin code request screen. Usually entering the correct code reserects the phone. However last occurance it refused to accept the correct code so required a reboot to get it to work again.
Anyone else seen this?
I'm on O2 in the UK fyi.
Sent from my Nexus S using XDA App

ok I'll guess the answer myself...
I guess this is related to the random reboots people have been experiencing primarily on calls. I note some people say the phone can reboot while on standby, since I 'had' SIM pin code enabled this was as far as the reboot while on standby was getting. I've removed the pin code request which will mean I guess the phone just completes the reboot without requiring my input.
I'm hoping this is fixed with any update to the reboot during active calls issue that google confirm they have repeated themselves.

I've just had this happen on my Nexus S. What service provider are you with? I'm with Tesco (O2).

I'm O2, 30day rolling contract. Basically I've disabled the SIM Lock now so hopefully until the standby or call (not experienced this one yet) reboots occur the phone will just restart without my intervention required now.

Same here. After connecting the phone to the charger yesterday evening, this morning the SIM Enter PIN screen showed up (like the phone did a reboot overnight).
After checking the system services, I noticed the phone hasn't rebooted, because the services where running for more than 12 hours.
So the SIM Enter PIN screen showed up without reboot. I think a no-signal situation has preceded before this screen showed up (and maybe the GSM module has got a total reset).
This is on Telfort/KPN, The Netherlands.

Interesting ArnoutVos.. these were my original thoughts too since every time I've had the phone next to me and not seen it reboot just present me with the Enter SIM Pin screen. I just naturally assumed I was getting the at standby reboot some people had seen.

I've got the same problem on t-mobile. Probably about 6 times in 2 weeks so far. I've also had it where the signal bars at the top just show grey with a little cross by them and the only thing i can do to sort it is restart the phone.
It also drains the battery like mad whilst in this state.

I also had this 2 times (only had the phone 5 days)
That is, i turn on the screen and i have no signal, I dont think my phone has been restarted, as i dont see the sim pin screen, it has just lost the signal/radio died. And nothing seem to restore the signal, i've tried switching from 2g and back, only thing i found to get the signal back is a restart..

i have had the same problem with the signal dropping out on me all morning. sometimes i can make calls sometimes i cant and sometimes rebooting helps sometimes not. today i had the sim card replaced just to make sure and i thought it helped but it just did it to me again. its really frustrating...

I had the same problem about 10 times during the last week. It seems to correspond with the creation of Radio_dump files in the /sdcard/ dir.
Nexus S, Android 2.3.3 Root

I get the same issue on A1 in Austria, not sure what's causing it, but it is annoying.

Let me give my 2 cents:
Getting this same thing happening all through the various combinations of roms and radio firmware, device is Nexus S 9020T, network is T-Mobile in Croatia.
CM 7 with I9020XXJK8 radio
CM 7.0.2 with I9020XXJK8 radio
Blandroid 2.3.4 with I9020XXJK8 radio
Blandroid 2.3.4 with I9020XXKB1 radio
Sometimes there is no pin input screen, so if I don't notice the little icon in the notification bar I'm completely unavailable to calls and sms's. During the time if the Wifi is on it will continue functioning normally, and radio dumps get created.
Will give newer radio firmwares a try before I start crying in my pillow.
Edit: don't know if it happened with stock android 2.3.3 which came on the device, didn't have it on stock for more than 15 minutes.

Alas and damnations, again mobile network radio fail, this time with
radio I9020XXKB3 and blandroid 2.3.4, so issue still present.
Only fix is reboot, airplane toggle does nothing. Does anyone else in europe experience this with a USA T-mobile version nexus?

Giving I9020XXKD1 a try, still with blandroid now 2.3.4p1. Keeping my fingers crossed!

Well well...seems to be a common pattern, as its happened to me a few times also in the last week. First time ive experienced it also...just over a week.ago. cant remember which rom i was using as i.change quite often. May have been a new 2.3.4 mod or just 2.3.3 im not sure. Not a good thing obviously but not a big issue so far. Hasnt happened again since about 3 or 4 days ago now.
Sent from my Nexus S using XDA App

Such problems can occur when the SIM is disconnected from power or from reset line or has technical difficulties making it reboot.
Power or reset line can be disconnected if you have your connectors inside your Nexus bent. This can be tested by shaking your phone heavily in all directions. Be careful not to drop it. If the Enter SIM or the Enter PIN dialog appears, It's most likely a mechanical defect of your phone.
If the SIM is broken it may be reset itself. You can't really test this. Maybe something appears in the system or radio log. Another way would be to place your SIM in a known-to-work phone. If similar problems occur it's a broken SIM. You should call your provider to send you a new one.

bot47 said:
Such problems can occur when the SIM is disconnected from power or from reset line or has technical difficulties making it reboot.
Power or reset line can be disconnected if you have your connectors inside your Nexus bent. This can be tested by shaking your phone heavily in all directions. Be careful not to drop it. If the Enter SIM or the Enter PIN dialog appears, It's most likely a mechanical defect of your phone.
If the SIM is broken it may be reset itself. You can't really test this. Maybe something appears in the system or radio log. Another way would be to place your SIM in a known-to-work phone. If similar problems occur it's a broken SIM. You should call your provider to send you a new one.
Click to expand...
Click to collapse
Those are some good advices, thank you.
I would rule out bent pins as the cause and also no amount of shaking produces the problem, and the problem happened always when the phone was on the desk (and connected to wifi for what its worth).
However, a broken sim - maybe. I haven't had any problems with it so far in any of the 2 previous phones and I'm careful handling it, but the radio log suggestion is excellent.
I will definitely go through it next time it happens ( its "adb logcat -b radio" so others don't have to search for it)

Does anyone got a solution on this?
I found today about 10 - 15 dump-files located in my SD-Card.
Its probably caused by an App which we all use... but i couldnt figure out which one...
is there a dump-debbuging programm which i can use or something else?
It's kind of interesting
Using a Nexus S in Austria (T-Mobile)

I've "solved" this by disabling the PIN altogether and setting up a script to run when the network is changed to delete any radio dumps:
http://forum.xda-developers.com/showpost.php?p=17114685&postcount=26
It doesn't seem to matter which ROM, radio or kernel I use....I wonder if this is a hardware defect?

sorry to resurrect an old thread, but this is to report that on my sns on pete alfonso's 4.0.3 rom and matrix 14.5 CFS and KF1 + KD1, I still get this problem of the radio dying.
has anyone found a solution?
to be more precise, the mobile network connection (calls and data) randomly dies and the only way to get it back is to restart phone. airplane mode doesn't help.

Related

Phone freezing

Hi,
I have a big problem with my Tytn (sorry if this is already been posted). Quite often the phone freezes, making it impossible to turn on again. The only thing that works is a soft-reset. What is worse, is that when the phone is in this state, although the green light is regularly flashing, it is unable to get phone calls even if the caller gets the normal ringing signal. No trace is left of the call, neither in calls list! This is a really serious issue: please, let me know if you have an idea of how to solve the problem.
Thanks!
I am having the same issue. I haven't been able to isolate it. I was havign to0 restart 1-2 times a day. Same systems press the power button nothing. Lights blinking everything looks ok. but nothing on the screen. and i miss calls. really pain in the ass. I loaded mobile secretary and it hasn;t locked in a day or two which is odd.
I also sometimes have to rpess the power button two times for it to wake
me too
It's happening to me too. I will lose service and the phone doesn't go out and poll automatically when service should be good. It may show 1, 2, 3 bars then when I try to make a call it hangs, and then get an x and a Y!, then searches for service. I have the GSM only hack installed and the activesync workaround and it still does this. It is not useable as a phone.
do a search in this forum.
one relevant thread here:
http://forum.xda-developers.com/showthread.php?t=285974
With all due respect, there is no solution where the link leads to.
I am having the GSM problem also. Just from time to time I am noticing an exclamation mark near the 'antennae' icon in the top bar. When I tap it, I read 'Service unavailable' in the balloon. From that point I may either soft-reset, or switch GSM flight mode on and off, which brings the PIN code keyboard and the phone works again.
I really don't think it is related to power saving, as it happened a few times in the car with TyTN on external power.
mnez said:
With all due respect, there is no solution where the link leads to.
I am having the GSM problem also. Just from time to time I am noticing an exclamation mark near the 'antennae' icon in the top bar. When I tap it, I read 'Service unavailable' in the balloon. From that point I may either soft-reset, or switch GSM flight mode on and off, which brings the PIN code keyboard and the phone works again.
I really don't think it is related to power saving, as it happened a few times in the car with TyTN on external power.
Click to expand...
Click to collapse
I think warmkiwi's link may be relevant to jimwormold's original post, which may not be related to your and angled1's problem of failing to poll correctly after dropping it's signal.
Mike
yes, it was. sorry, i should have quoted the original author (jimwormold)
well, sorry for being so picky on you :|
Now when we have defragmented the conversation I wonder if the GSM problem is reported more widely? and what is supposed to do in order to isolate the problem and fix it...?
jimwormold said:
Quite often the phone freezes, making it impossible to turn on again. The only thing that works is a soft-reset. What is worse, is that when the phone is in this state, although the green light is regularly flashing, it is unable to get phone calls
Click to expand...
Click to collapse
Sorry to do a "me too" posting, but I experience the exact same symptoms. There is no obvious pattern to when this happens, but it is a major problem, as there is no way (other than trying to switch it on) to distinguish whether the phone is working or not at any given moment.
I am running the latest (South African) ROM on my Vario II.
Philip said:
Sorry to do a "me too" posting, but I experience the exact same symptoms. There is no obvious pattern to when this happens, but it is a major problem, as there is no way (other than trying to switch it on) to distinguish whether the phone is working or not at any given moment.
I am running the latest (South African) ROM on my Vario II.
Click to expand...
Click to collapse
Given this thread now appears to have two distinct issues running together I better be clear that I am referring to the lock-up/freezing issue not the dropped GSM signal issue!!
To be honest there are quite a few possible causes for the freezing issue(s). I would suggest searches and the wiki on such things as (and you may or may not have tried some already):
1. Use of a Task Manager to properly shut running programmes otherwise they contiue to run in the background
2. Proper shutting down of Active Sync in addition to any task manager you may have, as it can re-start itself automatically (particularly overnight. Look for the "Fake Server Trick")
3. Always shut down Wifi when not in use (vital particularly overnight but also good practice to avoid lock ups)
4 For overnight and possibly other quiet times you can consider having your device automatically perform a soft reset to clear any running programmes that may block alarms/receipt of mail etc. Look for such things as xbar or SK schema
Mike
mikechannon said:
Given this thread now appears to have two distinct issues running together I better be clear that I am referring to the lock-up/freezing issue not the dropped GSM signal issue!!
1. Use of a Task Manager to properly shut running programmes otherwise they contiue to run in the background
2. Proper shutting down of Active Sync in addition to any task manager you may have, as it can re-start itself automatically (particularly overnight. Look for the "Fake Server Trick")
Click to expand...
Click to collapse
Yes indeed, although I think that both: a Phone App problem, and a GSM signal problem, are indeed the same, maybe only differently percepted and described by users affected.
I need ActiveSync to be running in order for DirectPush to work. If it conflicts with the phone, it makes the device unusable concerning push email functionality.
mnez said:
Yes indeed, although I think that both: a Phone App problem, and a GSM signal problem, are indeed the same, maybe only differently percepted and described by users affected.
I need ActiveSync to be running in order to DirectPush work. If it conflicts with the phone, it makes the device unusable concerning push email functionality.
Click to expand...
Click to collapse
I agree they may be cause and effect for some folks. Although I don't believe we can say that all the freezing and lock-ups are due to dropped GSM signal and freezing when failing to re-establish it. The items I list either taken together or individually have been found by others to work in some cases.
I appreciate that if you require Active Sync running then this is not a solution for you. I think the issue of crashing on loss of signal requires more analysis and I'm not aware of much discussion of it - though I could be wrong!!
Mike
I was fiddling with the phone yesterday and today, and I have a hypothesis that my problem is related to PIN entry screen that won't pop up but is silently awaiting a PIN underneath.
I was trying to ucheck the "Require PIN when phone is used" box in Settings but with no luck, my PIN is then refused with "Unknown SIM Error" message. Maybe it wants a PUK but I don't have it on hand to try.
My plan now is to:
- uninstall all Phone-related applications (PhonePlus, Dark_Blue Buttons, EZDial),
- request PUK from my office and try to uncheck the box,
- try prepaid SIM card which has no PIN
To observe symptoms I need two-three days, so I will rather not be posting until solid data is collected.
ps Mike, it is a pleasure to be on a board with people like you.
mnez said:
I was fiddling with the phone yesterday and today, and I have a hypothesis that my problem is related to PIN entry screen that won't pop up but is silently awaiting a PIN underneath.
I was trying to ucheck the "Require PIN when phone is used" box in Settings but with no luck, my PIN is then refused with "Unknown SIM Error" message. Maybe it wants a PUK but I don't have it on hand to try.
My plan now is to:
- uninstall all Phone-related applications (PhonePlus, Dark_Blue Buttons, EZDial),
- request PUK from my office and try to uncheck the box,
- try prepaid SIM card which has no PIN
To observe symptoms I need two-three days, so I will rather not be posting until solid data is collected.
ps Mike, it is a pleasure to be on a board with people like you.
Click to expand...
Click to collapse
Very kind of you to say so
Look forward to seeing your findings.
Mike
new phone
I'm on day 2 of my replacement phone from Cingular and the problem with losing gsm signal is non existent. The problem was hardware and fixed by calling and getting a warranty replacement phone. I'll let you know if the problem returns. Oh, and I have not been using the gsm only hack. I'm trying to see if the phone will work as designed first.
angled1 said:
I'm on day 2 of my replacement phone from Cingular and the problem with losing gsm signal is non existent. The problem was hardware and fixed by calling and getting a warranty replacement phone. I'll let you know if the problem returns. Oh, and I have not been using the gsm only hack. I'm trying to see if the phone will work as designed first.
Click to expand...
Click to collapse
Good news - hope it continues to work well.
Mike
I am reporting from the test field that my problem persists, despite uninstalling all phone-related extenders.
I have noticed that freezing is paired with disabling Bluetooth. So after switching the phone off (flight mode on) and back on (flight mode off), I also have to turn on Bluetooth.
EDIT: I was grounded for last few days at home and freezing problem was not occuring. I am now thinking that it may be related to switching band between GPRS and UMTS. My next step will be disabling UMTS for good. It saves a whole lotta battery, by the way. I am for the third day mostly on standby, with a few calls made, and I am still on 70%! (no 3G in the area)
I have contacted my vendor and asked about replacement policy, they are "checking this with the importer". It's a beauty of living in not-so-western country. Poland is the name.
mnez said:
EDIT: I was grounded for last few days at home and freezing problem was not occuring. I am now thinking that it may be related to switching band between GPRS and UMTS. My next step will be disabling UMTS for good. It saves a whole lotta battery, by the way. I am for the third day mostly on standby, with a few calls made, and I am still on 70%! (no 3G in the area)
Click to expand...
Click to collapse
I'm having exactly the same problem, very annoying because the staus LEDs keep blinking as normal. I too think the problem is UMST-GPRS switching related, as I also have problems when phoning while I drive with my car from a UMTS enabled into a GPRS only zone. The voice call is interupted and I get a loud noise, sounding like a scrambled voice, on both sides of the connection. At home my UMTS signal is very weak, so I think it happens when I move around the house to a place where the TyTN switches to GPRS.
I've put my TyTN to "GSM network" only now to see if this helps, but I use UMTS frequently so this is no long term solution for me.
pbw
same problem here, only gsm wil not help, new sim cards wont help either even other provider wont help
check: http://forum.xda-developers.com/showthread.php?t=287669
treid several different roms nothing will help
good luck
Hi,
mine was siffering of freezing issue, I sent a mail to HTC support, they don't know about it but the guy said me that I must to hard reset my device. Then no more freezes, I will keep testing it.
Regards,
Taguapire.
BTW: I changed my old and almost destroyed SIM card by a new one.

Hermes freezing

Hi everybody!
First of all sorry if there's already a thread for this kind of freezing but i havent found answers.
My HERMES freezes completely, won't let me access screen, power button or any other function. It just gets stuck in what i was doing (mainly today screen).
Only way to make it work is to soft reset it. Is this a common problem?
Now as i write i realized the phone ain't working, now i recall i saw a blinking NOGSM when reseting!
I got this unit from a guy in the UK, it's weird because i remember it worked when i first tested it. Then i sold it to a guy and this guy claimed problems, could it be something to do with the sim card perhaps? Can it be a hardware problem?
Haven't got a clue. I appreciate your help!
I've seen people reporting similar problems when an old SIM card is used - so the owner might want to replace his old SIM with a new one, if that's the case.
Also, check if the SIM fits securely into its socket. I was having a problem with the radio suddenly turning off just yesterday, and it seems to be gone after I cleaned the SIM's contact pads and re-inserted it firmly.
Regardless, I suggest the "standard" troubleshooting be performed - that is, disabling automatic ActiveSync via the fake server trick, making sure today plugins are installed to the main storage (and not to the SD card), checking the registry for invalid entries etc.
Overall, most freezes are because of software, not hardware. Today plugins are known to cause freezes, as well as poorly cooked ROMs. If anything else fails and the freezes are not clearly related to GSM/SIM, try reflashing the phone with an official ROM image and run it for a week or so without installing any additional software. If the freezing persists, then it might really indicate a hardware issue
thanks a lot for your reply DmytroL, that was really helpful ill let you know if replacing sim works when i actually have another sim to test it!
Keeping my fingers crossed, as in my case, SODs (standby of death) disappeared exactly when I replaced my old SIM that dates back to 2001 with a way newer one. I've had only a single radio crash since then, which I'd attribute to the Phone Today plugin. At least, no radio crashes since I've disabled that plugin. The battery drain has also decreased significantly.
I really hope the old SIM was the root cause of all this nightmare. Time will tell...
Yes you are right I had the Standby of Death SOD this is when the phone fails to come out of standby with a power button press. This issue only affects some people on some networks. I'm not sure if its a network problem or a software problem but as only a minority of people have it, I suspect its mainly a network problem there is a software solution.
The solution is to change the phone settings band option from auto 3G/2G to either 3G Only (WCDMA + UTMS 2100 in Europe) or 2G Only (GSM) depending on your requirements.
Also read this thread http://forum.xda-developers.com/showthread.php?t=540943&highlight=standby&page=2 where the resolution was also to get a new SIM.
Obviously this only solves the problem when the crash is because of the sim and/or settings which impact the sim. To rule out a software cause its best to start with a hard reset.
The solution I found was removing the SIM card for it to work properly. I kept on reading and apparently the radio chip is sometimes badly designed (probably from a bad batch) and heats up more than it should causing it to fail. That is why it worked at the beginning and then froze after a couple of minutes. Solution to that was either paying twice of what the phone cost me to get a replacement board or actually earning money by selling the phone for spares!! For my shame in this forum i did the latter Anways hope the experience helps!
nikoleman said:
The solution I found was removing the SIM card for it to work properly. I kept on reading and apparently the radio chip is sometimes badly designed (probably from a bad batch) and heats up more than it should causing it to fail. That is why it worked at the beginning and then froze after a couple of minutes. Solution to that was either paying twice of what the phone cost me to get a replacement board or actually earning money by selling the phone for spares!! For my shame in this forum i did the latter Anways hope the experience helps!
Click to expand...
Click to collapse
Maybe you could of just replaced the SIM itself with a new one, as sometimes that solves the SOD problem when adjusting the settings which impact the SIM ie setting 2G or 3G only from AUTO doesn't.
i´d tried it with 3 different sims and no change in the results!
nikoleman said:
i´d tried it with 3 different sims and no change in the results!
Click to expand...
Click to collapse
I guess you didn't have the chance to set it to either 3G or 2G only from AUTO 3G/2G, on my network I have to do this to avoid SOD regardless of SIM. The default phone options result in SOD on a regular basis, now with 3G only (WCDMA + UMTS 2100) = Zero SOD and a totally stable phone.

MB526 (random) reboots, fix?

Hi, i have problems with random reboots its really annoying.
Some roboots arent random - when i recieve/send sms phone reboots almost everytime or when someone calls me its the same - reboot.
Any fix for this?
Thx
I have Defy+ (MB526), 2.3.6 android, 2.6.32.9-gbdd614e kernel, stock ROM
try wipe or flash other sbf that you can flash
Don't flash anything, if it persists after a wipe, send it back
Sent from my MB525 using Tapatalk
Someone on this forum reported rebooting issues caused by a slightly shorter than spec battery (actually a few people as I recall). When the phone was moved it often rebooted and the fix was to add a single piece of electrical tape to the end opposite contacts. May be worth a try.
Switch to 2g and mobile data off then see if it reboots.
Might be this-
http://forum.xda-developers.com/showthread.php?p=21237004#post21237004
Ok, thanks for the answers, flashing doesnt work Ive tried it many times..
Ive just tried 2G and electrical tape, hope it will work
A few causes might possibly be the answer.
1) firstly confirmed the rom by playing the overclock settings. Some rom having too low on voltage or frequency setting. Or the rom itself is not stable. Flashing another rom is only way to confimed this.
2) Battery might have factory defect, use battery monitor widget to monitor the voltages/current of the battery consumption. change battery(borrow from friend) to see if the reboot still happen.
3) Check battery connection on the phone. Make sure no loose around it.
4) If all the above still causes the random reboots. you can return it back to the shop to repair the handset.
seems switching to 2G helped, no reboot since switch, thanks
This is the same problem I had with my Defy+
It used to reboot randomly for no reason even when siting on a desk doing nothing
all of a sudden i would hear a notification to say the sd card was loaded informing me it was rebooted.
When it does decide to reboot it can do up to 4 or 5 reboots continuously
I sent it back and got a new one.
The new one does the same thing but very rarely
maybe once every month or 2 months
I have posted about this on the Motorola Forums and There are other people with the exact same problem as us.
One of them mentioned they had to send their phone bak to Motorola and they replaced the main board and will get back to say how it went.
But since then no answer and Motorola changed their forums
https://forums.motorola.com/posts/4e8655afee
mine is not rebooting anymore
Splashik said:
mine is not rebooting anymore
Click to expand...
Click to collapse
Can you confirm if it's 2G or tape?
I purchased Defy+ 20 days ago with exactly same configuration as the one described in the beginning of this thread. Phone reboots at random when I am in the middle of conversation, or while accessing data through mobile network or while present in areas with extremely low single. I tried using a new SIM, checked loose ends (if any) of the battery i.e. stuck a 1 layer of tape on one end, also switched to 2G. The phone continues to reboot especially when I access internet on mobile network, and also booted once while I am in a call.
Unfortunately the customer service in India (any company) would be pathetic so I'm not hopeful in having Motorola fix the problem if I take the piece to their support centers...
Narasimha
Narashima,
I have heard of Defy going crazy when trying to access data in an area where the data signal is weak and goes in and out. Can you confirm you are getting reboots if you turn data OFF? Not sure how your phone is configured, but I mean even cut off 2G.

Problems with signal (complete loss of signal sim card)

Hello,
Its very often, i'm using the phone and I lose the signal completely and stay for about 10/15 minutes. ( I reset the phone, put it in airplane mode and no signal back )
i Removed the sim card and put in another cellphone and i have a signal in 100%.
Is there other radio that i can test or another solution??
thanks
My N4 has same problem, signal is cut and all operations with SIM frozen when phone falls asleep. If SIM PIN query is activated, then I am asked to enter PIN, but all entries are ignored, no matter if correct/incorrect and how many tries. So I have disabled the PIN query.
Soft: I have flashed many combinations, got the best result with .27 version on stock rom & kernel. It did not cure my phone, just prolonged the time before radio fails, around 30mins after screen off.
After reboot all is OK, signal is good, data works, I can call out & receive phonecalls without drops, etc. Until radio freezes on sleep.
radios are here:
http://forum.xda-developers.com/showthread.php?t=2087227
Please keep this updated with your solution. I personally have given up and am in deep s**t with complicated RMA.
Welcome to the club. Search and there are some things you can try. But nothing full proof.
FYI, if you are prepaid, there is no roaming, so you phone will cut out a lot.
hepatiit said:
My N4 has same problem, signal is cut and all operations with SIM frozen when phone falls asleep. If SIM PIN query is activated, then I am asked to enter PIN, but all entries are ignored, no matter if correct/incorrect and how many tries. So I have disabled the PIN query.
Soft: I have flashed many combinations, got the best result with .27 version on stock rom & kernel. It did not cure my phone, just prolonged the time before radio fails, around 30mins after screen off.
After reboot all is OK, signal is good, data works, I can call out & receive phonecalls without drops, etc. Until radio freezes on sleep.
radios are here:
http://forum.xda-developers.com/showthread.php?t=2087227
Please keep this updated with your solution. I personally have given up and am in deep s**t with complicated RMA.
Click to expand...
Click to collapse
i change to 0.24.
Now i have signal with the wifi on. But the signal after a half hour drops and came back after some minutes.
So there isn't a solution to this problem ?
lorrancruz said:
i change to 0.24.
Now i have signal with the wifi on. But the signal after a half hour drops and came back after some minutes.
So there isn't a solution to this problem ?
Click to expand...
Click to collapse
I keep hoping there will be a solution.
I think i'm found a solution.
Today i go to SETTINGS > MORE ... > CELL BROADCASTS
and disable everything and during all the day my signal not drop.
I never had a day that the signal not drop and today after that change happens.
So tomorrow i'll hope that the signal not drop ! Let's See !
this happens to mine as well and I never had this issue with my galaxy s. I have one of the first batches from december. Im wondering if a replacement will fix this issue or if it is software but I am leaning towards hardware problem

Sim Card Randomly Dropping?

Just picked up one of these phones. Really like it so far! One issue I've noticed though, after a few days of ownership, it's randomly dropping/not detecting the sim card? It's happened at least twice where I've left it to charge over night and woke up to the no sim icon, and yesterday at some point while I was watching YouTube videos in full screen (in my hands, off charger, no notice of the drop either whenever it actually occurred). Quickly popping the sim tray out and in resolves the issue. At first I thought it was because I was using a manually cut sim card, so I've since replaced the sim but the problem persists.
Anyone else have this issue? Should I have the device exchanged?
Thanks
First the phone froze and after restart dropped sim
I just had the same issue occur just now. The phone had frozen for over an hour before I did a forced reset and now when it started back it shows no SIMCARD and no connectivity. I am like you, I really like this phone but hopefully this isn't a permanent issue.
Watched it happen just now. Goes from bars to no sim icon without error or notice. Resetting the network settings, resetting the phone, and powering it off/on won't fix it. Literally have to pop the sim in and out and its recognized right away.
I lost sim recognition after I flashed to LOS 11/30 and no matter what I tried, phone would not recognize the sim. Once I flashed back to stock, it came back. Hopefully this was due to the rom and the problem won't come back.
I am not sure if I lose the SIM, but I will say that when I am driving around with Android Auto, I constantly see the cell signal go from LTE to no signal every couple minutes...
blakeatl said:
I lost sim recognition after I flashed to LOS 11/30 and no matter what I tried, phone would not recognize the sim. Once I flashed back to stock, it came back. Hopefully this was due to the rom and the problem won't come back.
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Had same issues when I flashed back to stock I actually have better signal than when I got it out of the box.... Almost as if the software wasn't installed correctly or something
Same here I'm on the stock room. I'm wondering if it is an app I downloaded. Any idea how to wipe cashe not the apps but system.
This is happening at least twice a day now. It seems to be software related. Power off and on without taking out sim fixes it.

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