Database Users

Sim Cards not being detected

Help please anyone.
Earlier today my phone lost service...i wasn't too bothered as I was home and the wifi is still working well.
I thought there was no orange service! Turns out my sim card isn't being detected (nor is any other one i've tried)
I did drop my phone early...but it's in a hard back case and it landed on its front and this has never occurred before.
What to do? Will a repair cost a bomb?

check ur IMEI and baseband...
i gues they'll be unknown

yep unknown?

This just happened to me just few minutes ago. Try turning off your phone, remove battery and SIM. Re-insert battery and turn on without SIM. If your radio service is restored, turn off and turn on with SIM this time.
This seems to happen to me whenever I try to calibrate my battery using the app in market by NEMA.
I'm going to have a backup of my efs folder and root explorer app now because I'm scared.

^ thanks will try that!
My airplane sign is on though! and has been for ages now-despite airplane mode being disabled?

Lol okay so I have two issues...sim problem AND
the phone refuses to switch off flight mode (despite the fact it's not activated in settings) Wifi comes on but bluetooth won't as it's in "flight mode"-sigh

If you have some radio service restored, then there is still some hope:
Go into phone dialer, punch in *#*#4636#*#*. Then go in Phone Information, scroll down, and there should be a drop-down box selection there. Select "GSM/CDMA auto (PRL)". Wait few seconds. Hit your menu soft-key. Select "Select radio band". Select "Automatic", OK, then go back to Phone info Menu. Hit "Turn off radio", wait few seconds until you lose all radio connections. Then hit "Turn on radio" and see if you get your radio connections restored.
If you can't do any of the previous steps then your efs nv_data.bin file is probably corrupt or something. Try removing battery, wait few seconds, turn on phone without SIM, turn off phone, re-insert SIM, then turn on. Repeat instructions on previous paragraph.
If you're still SOL, then you need help from someone else. Try searching "efs restore" from the parent forum thread "Samsung Galaxy S II I9100". I found a thread with [FIXED] tag that may show some help regarding this.

My S2 is also in similar mode .. tried ur instructions but unable to start the radio please help

the same think for me

i had this with ke7 modem and when i changed to kh3 it stoped

Apologies for hijacking this thread but I have a similar problem in that I can't get a 3G signal either.
In my case, it happened when I was at my local cinema and I managed to pick up a 3G signal in there which I used to do a quick check of my email before the signal switched itself off.
Usually if the phone is out of range of a 3G signal, the signal would switch itself off then back on once the phone was in range of a 3G signal and yet, when I was back outside, I couldn't get a 3G signal.
I thought it was the SIM card at first but it's definitely not that. I finally managed to install VillainROM after much difficulty yesterday and it fixed a problem I had with the phone being stuck in Flight Mode but it didn't fix the problem involving not being able to pick up a 3G signal anywhere.

MB525 (CM7 stable) "soft dead" (cannot call) after running for some time

Hello,
I recently flashed CM7 stable, and very happy that the cold-rebooting problem disappeared. But a new problem arises: After some time (several hours maybe) the phone got "dead" silently, i.e. cannot call (just dialing constantly) or receive call (got "shut down" prompt). But the signal display shows good (-71~-51dbm). The system is relatively clean, and killing running services that can be killed do not help (only settings, maps, google play services, android keyboard cannot be killed). After a reboot it gets work again. What should I do to troubleshoot?

luweitest said:
Hello,
I recently flashed CM7 stable, and very happy that the cold-rebooting problem disappeared. But a new problem arises: After some time (several hours maybe) the phone got "dead" silently, i.e. cannot call (just dialing constantly) or receive call (got "shut down" prompt). But the signal display shows good (-71~-51dbm). The system is relatively clean, and killing running services that can be killed do not help (only settings, maps, google play services, android keyboard cannot be killed). After a reboot it gets work again. What should I do to troubleshoot?
Click to expand...
Click to collapse
do a clean install dude,
or try wipe data,
if that doesnt help
i suggest u to install CM9 u will get HWA on ur phone

more findings; CM7 bug?
Rawwr said:
do a clean install dude,
or try wipe data,
if that doesnt help
i suggest u to install CM9 u will get HWA on ur phone
Click to expand...
Click to collapse
Reinstalling is the last thing I will do, since I have found something that may be relevant. When the error appeared, *#*#4636#*#* testing mode -> phone information will show "preferred network type" as "WCDMA preferred". Since I only have a GSM SIM card without 3G function, that may be the cause. But that cannot be changed when the error occurs, i.e., change that to "GSM only", quit the setting, re-enter, and it have reverted to "WCDMA preferred" automatically. Before the error occurs, that setting can be switched normally.
In settings->wireless & networks->mobile network settings, I have always set "GSM only" in network preferences, and ticked "use only 2G networks". When the error occurs, "GSM only" in network preferences is still there, but "use only 2G networks" is unticked automatically, and cannot be changed either, i.e. tick it, quit the setting, re-enter, and it have reverted to unticked status automatically.
The error will not recover itself; only re-booting can solve the error (switch airplane mode do not help because airplane mode switching also do not work when error occurs). I also found that when that error occurs, battery drains very quickly ( lost 40% one night).
Is this a known bug of CM7 or android? I googled and see lots of similar complains.

I do live in a area with unstable signal. Just now I observed a sudden signal dropping (from -73 to -113dbm) and then phone reconnected successfully (back to -77dbm). I checked *#*#4636#*#* testing -> phone information immediately, the "preferred network type" has been changed from "GSM only" to "GSM auto (PRL)", and in settings->wireless & networks->mobile network settings, "use only 2G networks" has been un-ticked again. But the phone can still work normally in this state. And I know if next time the "preferred network type" be changed to "WCDMA preferred", then I have to re-boot again.

wcdma perferred again
I cannot dial again. The signal strength is -57dbm (even better?!). It just keep dialing and never ends. Even if I tap End button, it will keep "hanging up" but cannot hang up. As expected, "preferred network type" has been changed to "wcdma perferred" again, and "use only 2G networks" has been un-ticked again. How can I fix them?

luweitest said:
I cannot dial again. The signal strength is -57dbm (even better?!). It just keep dialing and never ends. Even if I tap End button, it will keep "hanging up" but cannot hang up. As expected, "preferred network type" has been changed to "wcdma perferred" again, and "use only 2G networks" has been un-ticked again. How can I fix them?
Click to expand...
Click to collapse
even i flashed cm7 didnt faced such problem,
did u try the baseband switcher ?
try it once
if not
flash an sbf
and install msginger2 or mokee0S or Rabbit Rom for ur device

Rawwr said:
even i flashed cm7 didnt faced such problem,
did u try the baseband switcher ?
try it once
if not
flash an sbf
and install msginger2 or mokee0S or Rabbit Rom for ur device
Click to expand...
Click to collapse
Rebooting again... Yes I have tried baeband switching for dozens of times before I realized that "WCDMA preferred" problem may be the real culprit. I have tried ms2ginger before CM7, but it did not solve another problem: reboot when cold, so I did not test it much. And, aren't they based on CM? They are likely to have same problem.
I think maybe because the GSM signal is poor, after it loses the signal and tries to reconnect, it finds a better WCDMA signal from another provider and got allured sticking on it .. Sounds un-logical.
I hope there's some guidance that can fix that network preference setting to GSM only, and the problem will be sure to solve.

I find some information about Getril, which detect whether your baseband matches RIL, but it's for other phone models and cannot run on Defy. Does Defy have such RIL problem too?

Battery usage picture
Mainly the problem occurs at home, for the signal is poorer in my home. When I go to work the phone could last longer. The attached picture is typical: Roughly the former 2/3 of the curve is night at home, and the later 1/3 is day at work. The battery drops more quickly at home than work. At night, wakelock is normal, but CPU is running at 300MHz all the time. Only in the later 1/3 CPU can go to deep sleep. At night the signal shows green (it's actually WCDMA signal I think), but the phone cannot make or receive calls.

Have to double dial to make a call

I have an odd problem with my G2. Whenever I try to dial out - whether it's by inputing a number to the dialer, by choosing a contact, etc. - usually (not always) the device will not dial out and will instead delete the number or reset the contact search. Repeating the action will cause it to dial normally.
The frequency of the problem seems to have gotten worse since I upgraded to Lollipop - it now happens almost any time I try to dial out.
Working in safe mode seems (I can't tell for certain) to solve the issue, but it recurs when I go back to normal mode.
My device is the LG-D802, running Android 5.0.2 (V30a-SEA-XX).
Can anyone suggest a method to resolve this? Or at least t narrow down the cause?
Thanks

Same problem
Hi, I have the same problem after upgrade to 5.0.2 and it is very annoying.
My device LG-D802, V30b-EUR-XX.

Can no longer get LTE after touching the Network Mode setting

For unknown reason, I can no longer get LTE after touching the Network Mode setting. The default mode on my G6 is "Global", and when I tried changing it to "LTE/GSM/UMTS" it surprisingly switched to 4G. So I changed it back to Global to get the LTE back, but it did not work. I tried switching the data On and Off, restarted the phone (several times), switching to Airplane mode and back. None of the above helped.
After searching the net and finding no answer, I decided to call AT&T tech support to see if it's just something that got messed up on their end. The person told me to delete the default APN and guided me to create a new one and restart the phone. I was also asked to give the IMEI of the phone (probably because it's a carrier-free version). None helped to fix the issue.
The only things I can think of now to possibly resolve this is to reset the phone and even get a new SIM card. But before trying these drastic actions and losing several hours of backup/restoration/setup/tweaks, I wanted to get some expert advise from you guys.
I'm using the US997 model (boot loader still locked).
The reason I tried messing up with the Network Mode is because I've read from somewhere that the Global mode tends to drain more battery.
Thank you all in advance.

sp_1st_timer said:
For unknown reason, I can no longer get LTE after touching the Network Mode setting. The default mode on my G6 is "Global", and when I tried changing it to "LTE/GSM/UMTS" it surprisingly switched to 4G. So I changed it back to Global to get the LTE back, but it did not work. I tried switching the data On and Off, restarted the phone (several times), switching to Airplane mode and back. None of the above helped.
After searching the net and finding no answer, I decided to call AT&T tech support to see if it's just something that got messed up on their end. The person told me to delete the default APN and guided me to create a new one and restart the phone. I was also asked to give the IMEI of the phone (probably because it's a carrier-free version). None helped to fix the issue.
The only things I can think of now to possibly resolve this is to reset the phone and even get a new SIM card. But before trying these drastic actions and losing several hours of backup/restoration/setup/tweaks, I wanted to get some expert advise from you guys.
I'm using the US997 model (boot loader still locked).
The reason I tried messing up with the Network Mode is because I've read from somewhere that the Global mode tends to drain more battery.
Thank you all in advance.
Click to expand...
Click to collapse
This was a long time ago but did you ever resolve this issue? I think I'm having the same issue except I can only get 3G.
---------- Post added at 07:23 PM ---------- Previous post was at 07:22 PM ----------
sp_1st_timer said:
For unknown reason, I can no longer get LTE after touching the Network Mode setting. The default mode on my G6 is "Global", and when I tried changing it to "LTE/GSM/UMTS" it surprisingly switched to 4G. So I changed it back to Global to get the LTE back, but it did not work. I tried switching the data On and Off, restarted the phone (several times), switching to Airplane mode and back. None of the above helped.
After searching the net and finding no answer, I decided to call AT&T tech support to see if it's just something that got messed up on their end. The person told me to delete the default APN and guided me to create a new one and restart the phone. I was also asked to give the IMEI of the phone (probably because it's a carrier-free version). None helped to fix the issue.
The only things I can think of now to possibly resolve this is to reset the phone and even get a new SIM card. But before trying these drastic actions and losing several hours of backup/restoration/setup/tweaks, I wanted to get some expert advise from you guys.
I'm using the US997 model (boot loader still locked).
The reason I tried messing up with the Network Mode is because I've read from somewhere that the Global mode tends to drain more battery.
Thank you all in advance.
Click to expand...
Click to collapse
This was a long time ago but did you ever resolve this issue? I think I'm having the same issue except I can only get 3G. Sorry for the double post Admin please delete

Network problem with j5 2017

Hi
I'm writing here because I have tried all the stuff around the Web about this problem and nothing works ;/
So about the problem, the phone started to show "only emergency calls". The weird thing is that even on emergency calls mobile data is working without any problems.
What I tried:
1. Selecting automatic carrier selection and selecting it manually.
2. Factory reset.
3. Other Sim.
4. 2nd sim slot.
What helps, unfortunately temporally, sometimes for couple of hours and sometimes for 2 minutes. Turning on and off Airplane mode.
I'll try to go to Samsung and ask around for a warranty os upload or something but for now if you got any other ideas I would really like to try them and maybe fix my wife phone.