After a normal reboot of my phone, it suddenly doesn't read my sim card anymore. When I turn it on, I'm not asked to enter the pin code and the phone doesn't connect to the network.
If I go into settings and change the pin code, or turn it off, I'm asked to enter the original pin code, so in that way there's still a connection to the sim card.
When I've done any of the above, the sim card seems to been "activated", and the phone connects to the network, and everything is as it should be until the next reboot. Then I manually have to "activate" the sim card again.
The phone has worked without any problems for a long time with the current CyanogenMod 9 custom rom and my current provider, and I haven't changed anything that suddenly can cause this.
Some suggestions to what can be wrong?
Does the sim work with other phones ? If so, it probably isn't a problem with the sim. In that case, try a factory reset in the first instance.
If that fails to work, try a fresh/clean install of CM9. If that doesn't work, reflash a Gingerbread stock rom & see if the problem persists. If the problem persists with a GB rom, then it's likely to be a sim/hardware issue.
The other thing that comes to mind is have you flashed a recent CM9 nightly ? This might explain it working OK previously with CM9 & not working now. Obviously CM9 is beta, and something funky might be going on with a more recent build/nightly.
I've now finally managed to find another phone and another sim-card.
My own sim-card works fine in the other phone - and when I put the other sim-card in my own phone it doesn't ask of the pin-code and it doesn't connect to the network.
So I believe my phone needs a complete reset - when I've got the time to do it...
One strange thing is, that at one reset earlier this week my own phone asked for the pin-code - but only once...??
I think I've found the problem. Either it's caused by Avast Anti-Theft alone or it's a combination of Avast Anti-Theft and CyanogenMod 9.
I believe it's the last one, because everything worked fine during the first time I switched from stock ROM to CM9, but then suddenly the error with the pin-code occured, and I could be caused by an update in the CM9 version.
But when I restored factory settings on my phone and started again from zero, everything was okay, and I was promted to enter my pin-code. It was the same when I restored my apps and data with Titanium Backup, but then when I installed Avast Anti-Theft the error occured again.
Actually I restored my phone once again just to make sure, and it was the same - when I installed Avast Anti-Theft, I was no more asked to enter the pin-code and the phone did not connect to the network.
So now I know what's wrong and maybe also why - but I don't know how to solve it...!?
Related
Hello everybody!
I was on ultimate v8 when my phone started rebooting in recovery without any reason, and entering recovery.if i restarted the phone i didn't had signal.
the phone worked properly without the sim card (tried two cards, it had this problem with both of them)
i thought it was a rom issue, so i flashed the stock rom, relocked the bootloader and used sony update service to repair my phone.
i didn't install any applications, and for a couple of hours it worked normally. afterwards though it lost signal again and started rebooting.
did a clean install again with no results.
any ideas what how should i procceed? is there any way to fix it or shoud i visit a service point?
ps sometimes it seems that sim cards are not properly recognised. it's not that it has the sign, that shows that there is no sim card, however sometimes i restart the phone and it doesn't ask for the pin code
christos4 said:
Hello everybody!
I was on ultimate v8 when my phone started rebooting in recovery without any reason, and entering recovery.if i restarted the phone i didn't had signal.
the phone worked properly without the sim card (tried two cards, it had this problem with both of them)
i thought it was a rom issue, so i flashed the stock rom, relocked the bootloader and used sony update service to repair my phone.
i didn't install any applications, and for a couple of hours it worked normally. afterwards though it lost signal again and started rebooting.
did a clean install again with no results.
any ideas what how should i procceed? is there any way to fix it or shoud i visit a service point?
ps sometimes it seems that sim cards are not properly recognised. it's not that it has the sign, that shows that there is no sim card, however sometimes i restart the phone and it doesn't ask for the pin code
Click to expand...
Click to collapse
hmm...do a factory reset using cwm then flash stock ICS .54 rom & see it works or not.
i've wiped data, cleaned cache, dalvik cache etc many times while i was on ultimate. i've also flashed the stock and did factory reset via the menu in the phone as well via sony update service... i was thinking of flashing radio, but couldn't find the file...
Well as the title says.
Just rebooted my s2 and now when I try to do anything it says "insert sim card to access network" imei is fine serials fine and even shows signal bars but soon as try to make a call to drop signal and network completely....
have restored efs folder and even dne a repair.
changed base bands
reflashed new rom
tried different sims(and networks)
and still nothing
Odd that it happened after weeks of being fine and then just did a reboot and then this all happened
any ideas folks as to next move?
please someone must have an idea or two. to offer!
Well looks like I have fixed the issue after many hours of frustration..
Still have no idea what happened to cause issue in first place..
What I did was refresh my original backup
flash original STOCK rom via odin and this seemed to have fixed it. Are there any friggin better loctaion for these files as took 8 hrs to down load the damn thing!?
now re rooted, flash custom rom, flashed custom kernel of choice and than restored back up
everything seems ok(though my imei is incorrect now as says 004999010xxxxxx ,but am concerned it will happen again. Had flashed a modem several days before and updated a few apps . but at time of the issue occuring was just clearing caches then a reboot..
So,
I bought this phone on the day it was launched, its been more than 3 months and had no issue with the device. I rooted the phone , experimented with Xposed and other apps but for the past few days i was experiencing this strange problem. Cellular network was not running on my phone, i changed the sim, swithed the devices on/off several times , did everything i could do in the os, changing the mode to 3G from LTE and vica versa, etc etc .. but still no luck. The cellular network sometimes comes and goes. Then i opted for last resort which was to factory reset the phone, after resetting it the cellular network worked but i don't know if this is a permanent solution. If you have anything to add please share.
Regards,
Saransh
Sorry nothing much to share but i suspect you install some apps or did something to your rom so the network screwed. My suggestion is you nandroid backup every week (at least) so you can revert back when something happened.
Tried factory reset
I have tried factory reset but still having this issue. Maybe it's a hardware issue. I don't get it , everything was working fine few days ago then all of a sudden this **** happened.
SaranshVfx said:
I have tried factory reset but still having this issue. Maybe it's a hardware issue. I don't get it , everything was working fine few days ago then all of a sudden this **** happened.
Click to expand...
Click to collapse
Maybe exposed screwed something. Get a microsd card with whatever rom you want in it. reboot to recover and try full format. insert the microsd after then flash a rom. see if it works
Rooted my phone with sudamod rom, Everything is working fine.
This has be happening to me the last couple days. I've done no changes to the software, I did a screen replacement a few weeks ago. Sometimes Wifi will turn on after a while or the SIM card will read and connect to LTE. Trying to decide if the phone is on its last legs or not. I'm on BareCee ROM, have always only used engine95's modified ROMs. Tried flashing the latest modem and the latest partitions if any changes. Also tried deleting the /data/misc/wifi/ folder as suggested in another thread stating a similar SIM issue with no luck.
Can you fix that?
Kyusaku said:
This has be happening to me the last couple days. I've done no changes to the software, I did a screen replacement a few weeks ago. Sometimes Wifi will turn on after a while or the SIM card will read and connect to LTE. Trying to decide if the phone is on its last legs or not. I'm on BareCee ROM, have always only used engine95's modified ROMs. Tried flashing the latest modem and the latest partitions if any changes. Also tried deleting the /data/misc/wifi/ folder as suggested in another thread stating a similar SIM issue with no luck.
Click to expand...
Click to collapse
Hi, please tell me if you fixed that problem, I have exactly the same problem right now with my D851 T-Mobile, at first the phone says no sim card, but the sim works with other phones, and I use the phone with wi-fi but since yesterday the wi-fi won't turn on, I did the most common steps, did a restore wiping all my personal data and apps, and installing the original firmware. And nothing happens.
I wiped my LG G2 (vs980...unfortunately) on Monday from an old custom ROM and installed a new CM mod (13). Since then, the phone won't recognize any SIM inserted. I wiped all again, and installed CM 12.1. Same deal. Went back to CM 13 and nothing. Now upgraded to RR 5.8.2 (latest they have for the vs980 model) and still nothing. Everything else works great (apps, wifi, bluetooth, etc), but it still does not see any SIM. I also noticed that when I go into settings and select Cellular Networks, I get a "com.android.phone" error (Not that annoying "Unfortunately..." mess people used to get and it asks if I want to close the app. I have tried clearing all the caches and app data, going into test mode and turning off the radio (several times) for up to an hour, powering fully off, removing the SIM, leaving out for an hour before reinserting and powering back up, and even changing the IMEI number and nothing has worked. By the way, using TWRP 2.8.6.0 to flash my drive.
Oh, and I used 3 different SIM chips and they all work fine in a PUK.
Someone please help. I can't afford a new phone right now.