Database Develop

[Q] Phone constantly showning "No Service"

Hey
I have a little problem which has rendered my N1 practically useless as a phone. I was on MicroMod's Gingerbread ROM for some and all was going fine. Today I decided to switch to CM7 nightly. It worked fine but after a reboot I realized that my phone was not connecting to my network. I rebooted, wiped and reflashed, tried a different sim, tried a different rom. Everything. It just isn't working. My network bars are grayed zero and there is a small cross on them. My notifications show my Service Provider's name (Airtel), and on the lockscreen it reads: (No Service)|Airtel. I went into network operators in settings and it says searching for a while then a toast notification pops up saying that there was an error while searching for network. What should I do? Any help will be appreciated.
Regards
Raptor
P.S.:It's not a network problem. I tried using my sim in another phone and it worked just fine.

Never mind actually. I fixed the problem. The device would sometime start connecting to the network properly for a few minutes. The 5th time that happened I went into mobile operators in the wireless and network section of settings. From there I selected my network and rebooted. My device has been working perfectly since then.
Regards
Raptor

CM10 nightly on Galaxy Tab P1000: WiFi drains battery and no GSM

Unfortunately, XDA won't let me post here yet (which is where this belongs!): http://forum.xda-developers.com/showthread.php?t=1871113 so...
1) Modem. My baseband is recognized as P1000XXJPZ. Dialing *#*#4636#*#*: network set to GSM only (tried others though), network signal detected but GSM is "emergency calls only" and network signal indicator shows no signal. SIM is recognized (and works in other phones), can access contacts. Can find networks if I search manually but can't register on my network. Above thread suggested copying modem.bin to /system/vendor/ - did so, no effect.
2) WiFi. See the screenshot of battery usage - since I'm not using GSM or 3G due to issue #1, I normally disable radio altogether in *#*#4636#*#* and enjoy long battery life. However, CM10 did something sinister to the WiFi and the battery drains by 50-70% during just one or two hours of Google Talk via WiFi (provided I'm sitting right next to the access point). With WiFi switched off, the tablet can last for days - music, reading, etc.
My install was clean - data, cache, Dalvik cache all wiped, no custom kernel, etc. Everyting else works flawlessly, but these two issues are killjoy.
Does anyone else experience these issues? Does anyone knows why does this happen and whether it's possible to fix?

VengefulAncient said:
Unfortunately, XDA won't let me post here yet (which is where this belongs!): http://forum.xda-developers.com/showthread.php?t=1871113 so...
1) Modem. My baseband is recognized as P1000XXJPZ. Dialing *#*#4636#*#*: network set to GSM only (tried others though), network signal detected but GSM is "emergency calls only" and network signal indicator shows no signal. SIM is recognized (and works in other phones), can access contacts. Can find networks if I search manually but can't register on my network. Above thread suggested copying modem.bin to /system/vendor/ - did so, no effect.
2) WiFi. See the screenshot of battery usage - since I'm not using GSM or 3G due to issue #1, I normally disable radio altogether in *#*#4636#*#* and enjoy long battery life. However, CM10 did something sinister to the WiFi and the battery drains by 50-70% during just one or two hours of Google Talk via WiFi (provided I'm sitting right next to the access point). With WiFi switched off, the tablet can last for days - music, reading, etc.
My install was clean - data, cache, Dalvik cache all wiped, no custom kernel, etc. Everyting else works flawlessly, but these two issues are killjoy.
Does anyone else experience these issues? Does anyone knows why does this happen and whether it's possible to fix?
Click to expand...
Click to collapse
same problem with GSM, have you solved??

davidep85 said:
same problem with GSM, have you solved??
Click to expand...
Click to collapse
Same here.
Am thinking tht flashing an old rom might solve the problem.

[Q] No data connection - Phone or network?

Ok, first up - Stock ICS 4.0.4 ROM, custom kernel (HydraCore v4.3), nothing changed on phone recently prior to this occurring.
Some time during the night (presumably) my Note has decided it does not work when it comes to mobile data. On waking I found the stock weather widget had not updated, the stock browser would not load any pages and the Facebook app said could not connect. Over wifi, these all work fine. Calls and SMS work fine. The weird thing is the status bar indicates I'm connected to H+, H, or 3G, and the upstream and downstream indicator arrows light up whenever an app tries to access the net as though all is fine. I find it odd that this has happened without anything being changed or touched on the phone, and with it working flawlessly for months with the current setup.
The website for my provider indicates no faults located either at home or work, could this still be network related?
Short of loading ICS again, I've tried everything I can think of. Cycle power, double check and toggle all data/network settings, reset APN, etc.
Just thought I'd check here for any ideas or a simple fix I may be overlooking before I go flashing ROMS (which may or may not fix it).
Thanks for any help,
Nick

Did you try with another sim card dude.

Nick Sawyer said:
Ok, first up - Stock ICS 4.0.4 ROM, custom kernel (HydraCore v4.3), nothing changed on phone recently prior to this occurring.
Some time during the night (presumably) my Note has decided it does not work when it comes to mobile data. On waking I found the stock weather widget had not updated, the stock browser would not load any pages and the Facebook app said could not connect. Over wifi, these all work fine. Calls and SMS work fine. The weird thing is the status bar indicates I'm connected to H+, H, or 3G, and the upstream and downstream indicator arrows light up whenever an app tries to access the net as though all is fine. I find it odd that this has happened without anything being changed or touched on the phone, and with it working flawlessly for months with the current setup.
The website for my provider indicates no faults located either at home or work, could this still be network related?
Short of loading ICS again, I've tried everything I can think of. Cycle power, double check and toggle all data/network settings, reset APN, etc.
Just thought I'd check here for any ideas or a simple fix I may be overlooking before I go flashing ROMS (which may or may not fix it).
Thanks for any help,
Nick
Click to expand...
Click to collapse
That might be an EFS partition corrupt, go to settings >> about device >> status >> IMEI
see if your IMEI is there or not

LG Optimus 2X P990 - Service Problem

Hello,
Since a couple of weeks I've been having some issues with my beloved phone: the LG Optimus 2X Speed (P990) running the latest and greatest Cyanogenmod 7. And I was hoping that you could help me with that.
The Problem
My phone, and my previous phones have always had great service reception. I would never find my phone with two bars or less, unless it was brain-dead out of juice. I've always had the same provider (T-Mobile NL) and I've never experienced any problems with them.
However, in the last couple of weeks my phone can't find my network more often and often. I'd check my phone to see why I haven't gotten text-ed in the last minute or so, and it would be offline. Zero bars and status "No Service". At the beginning, I could put Airplane mode on, and then off again and it would reconnect. But since a couple of days that won't work either. I can put the telephone into airplane modus, but it gets stuck in it.
The button remains gray saying "Disabling Connections". If you go back, and into the Connection settings again the button can be pressed but indefinitely keeps the phone in airplane mode. The only way to enable connections again is to completely restart the phone. And as of lately I find myself having to reboot the device about 1-4 times a day.
Could you help me with this?

Mastermind- said:
Hello,
Since a couple of weeks I've been having some issues with my beloved phone: the LG Optimus 2X Speed (P990) running the latest and greatest Cyanogenmod 7. And I was hoping that you could help me with that.
The Problem
My phone, and my previous phones have always had great service reception. I would never find my phone with two bars or less, unless it was brain-dead out of juice. I've always had the same provider (T-Mobile NL) and I've never experienced any problems with them.
However, in the last couple of weeks my phone can't find my network more often and often. I'd check my phone to see why I haven't gotten text-ed in the last minute or so, and it would be offline. Zero bars and status "No Service". At the beginning, I could put Airplane mode on, and then off again and it would reconnect. But since a couple of days that won't work either. I can put the telephone into airplane modus, but it gets stuck in it.
The button remains gray saying "Disabling Connections". If you go back, and into the Connection settings again the button can be pressed but indefinitely keeps the phone in airplane mode. The only way to enable connections again is to completely restart the phone. And as of lately I find myself having to reboot the device about 1-4 times a day.
Could you help me with this?
Click to expand...
Click to collapse
Obviously CM7 went a little crazy! I don`t think it`s hardvare problem and the most safe and secure thing u can do is to go back to stock rom and root and reflash CM7 again!!! Android is weird system and many weird things happen to many people. If u have few hours to spare u should begin there and see what happens. If that doesn`t solve your problem than u can start thinking about hardware failure (maybe SIM card, maybe phone antena). But i`m allmost positive it`s software isue. :good:

Disable the automatic date and time (network-provided one). See if that helps.
That was preventing my P990 from getting network at all after a cold boot.

Hi,
I have exactly the same problem. Disabling network-provided time helped (i.e. the phone connects to the network and data connection is up), but I was wondering if this is a bug and if there's a thread or a resource discussing this issue? Btw, the phone has been having some minor connectivity issues in CM 7.1 as well, but otherwise CM7 is useable.
Phone: LG-P990 (Optimus 2X), "Made in Korea" under the battery, does that mean for sure it's the SU660 flavour?
Carrier: Fido (Rogers Wireless), Canada
ROM: CM 10.1-20130722-UNOFFICIAL-p990 (tonyp build version 5) (Wiped and flashed on 2013.08.27)
Kernel: 2.6.39.4-kowalski-exp
Basebands tried: (none get me data connectivity)
LGP990hNAT-00-V25h-FID-CA-FEB-22-2012+0 (Original)
725 V10d (shows as Unknown in About Phone)
450 V20m SU660 (EDGE only)

OK, Correction...
Only the Wi-Fi connection was up. The cellular connection indicator was blue, which has led me to believe that cellular data connection was up as well. When Wi-Fi is disabled, the cellular connection indicator goes white and there's no data connectivity.
Furthermore, even though basic cellular connectivity was available for approx. 8 hours during the night, as soon as I left home and started moving it started dropping out. For example, I was only connected ~30% of the time for the past hour (and the reception along my usual route is normally great).
Toggling network-provided time doesn't seem to have an effect now, but the old tricks (toggling cellular connection, going into Airplane Mode, rebooting phone) seem to restore cellular connection for a brief period.
I also noticed that often when I would launch a data-using application (Internet browser, gmail app) cellular connectivity would be lost in a minute or so (saying No Service).
I've tried looking into "logcat -b radio" for ideas, but I don't quite understand what's happening here (willing to learn though).
Help...

I have installed CM7.2 (official CM) and CM10.1 (tonyp 5, oldbl) with dual boot and can now switch between the two ROMs. I have good cellular and data connectivity in CM7.2, but no data connectivity even after a fresh install of CM10.1.
I assume the baseband has nothing to do with this since both ROMs are using the same.
So, armed with a dual boot device, the n00b is ready to do troubleshooting! It only needs guidance now... Help?

LTE Connection has dropped, WIFI works fine.

I have tried multiple ROMs and multiple radios, but my phone drops network connection.
Currently running a Lineage OS 7.1.2 dated April 15th and the baseband is MDM9625_104670.31.05.44R.
The weird thing is that the LTE light shows signal, but I'm not connected.
Here's what I've tried:
Toggling Airplane mode.
Toggling Data Roaming
Changing the preferred network type
Changing the System Select.
Resetting the Carrier settings - (update PRL) (Update device config)
Try different APNs.
Network settings reset.
I can't think of anything else to try.