Sudden Signal Loss, not detecting SIM - Nexus 4 Q&A, Help & Troubleshooting

Hey there guys, I apologize if this has been covered, as I feel its related to an "efs" folder type of issue. I'm just not quite sure where the hell to even begin searching.
I've been on 4.3 since the leak and have been using Cataclysm 4.3 JWR ROM for a while now, problem free. All was running great until yesterday I was downloading some media and transferring it to my laptop (~10gb of traffic before I noticed the problem), and my WiFi shut off and restarted itself. My mobile data kicked in at that point for all of 10 seconds until the WiFi reconnected and within 30 minutes my signal bars suddenly dropped to zero and calls couldn't be made. "Mobile network not available." message appears. So I figured i'd pull the SIM, replace and reboot. When that didn't work I tried rebooting without the SIM, to see if it would detect no SIM card and prompt me to put one in and reboot to be able to connect to mobile network. Well nothing was detected. A full wipe, reflash of identical ROM, reflash of updated ROM, reflash of original JWR deodexed & rooted backup, all with the same outcome. I have tried everything short of downloading the stock image and flashing that but I haven't got around to it since I haven't had time to backup my internal SD before losing all data. I should note that I'm on baseband .84/4.3 bootloader and have been since Google pushed JWR & JSS. I haven't tried flashing a new modem, I figured that wouldn't been an issue. I suppose I'll try flashing .48 and update.
Edit: I forgot to mention that yes, WiFi is in fact working. Mobile signal seems to be the only thing affected.
Edit: Reflashing baseband .84 and .48 didn't work.
I really appreciate any ideas guys, I'd like to sort this out rather than having to flash stock and RMA it or something :/

All settled, it was an issue with the frequency band my provided operates on. Mod can lock/delete thread thanks.
Sent from my Nexus 4 using xda app-developers app

Related

Atrix keeps crashing (wifi?)

I have an ATT Atrix with 4.5.91. A couple of days ago, the Atrix started crashing 10+ times per day. It always happens if I try to turn on wifi, but happens other times too. Sometimes wifi will show error, instead of turning on. Bluetooth has been spotty as well. Any ideas? I tried reflashing 4.5.91 already.
Did you flash any ROMs? Kernels? Is phone unlocked?
Please, give more info....
txaggies07 said:
I have an ATT Atrix with 4.5.91. A couple of days ago, the Atrix started crashing 10+ times per day. It always happens if I try to turn on wifi, but happens other times too. Sometimes wifi will show error, instead of turning on. Bluetooth has been spotty as well. Any ideas? I tried reflashing 4.5.91 already.
Click to expand...
Click to collapse
Have you recently installed any apps that are using internet connection?
Install one of the firewall apps for android and monitor what's happening when you turn on the wifi.
It is unlocked with the 4.5.91 pudding + preroot sbf. I had the upgrade.zip version on it when I started experiencing the problem. I then flashed it with the 4.5.91 mentioned above to see if that would fix the issue. I have not installed any new apps recently, but some could have updated I suppose.
Just out of curiousity.. what Radio are you using?
I have never flashed the radio specifically. My baseband version is N_01.77.30P.-
I am also having this problem. I currently have stock 2.3.4 on ATT and my baseband version is N_01.77.30P. I've never rooted or unlocked my Atrix, all stock.
When I am able to turn wifi on, it will sometimes connect but only for a few seconds. Then it just reboots multiple times. If I am able to get it running, it says error by the turn on wifi option under settings. Mobile hotspot doesn't work either. If I keep wifi off, it doesn't crash.
I've tried restoring to factory settings, both through the factory data reset while the phone is on and through android recovery, but neither help. Any other ideas?
thanks
Backup your current rom. Flash stock 2.3.4 via fastboot. Wipe via fastboot. Reboot. --> problem solved
xploited said:
Backup your current rom. Flash stock 2.3.4 via fastboot. Wipe via fastboot. Reboot. --> problem solved
Click to expand...
Click to collapse
I tried that. The issue persists. I am thinking it might be hardware based.
Absolutely the same Wifi problem for me.
I'm on stock 2.2, rooted and deodexed.
Never has any wifi issues previously. And it's started for no reason.
Last program i installed was Tunein Radio and it worked fine about a day with Wifi. Not sure it's related.
Tried to restore my old cwr backup, but it's not helped.
A friend of mine had this problem with his atrix. His was stock ATT firmware never modded or unlocked. I factory reset it and problems persisted. His wouldn't connect to wifi at all. I believe it was hardware related, so if you didn't void your warranty, return it. If you did, you can ask Motorola to fix it... see what happens.
Side note: I kept the malfunctioning phone away from my functioning phone as I did not want it to get any ideas.
Sent from my MB860 using XDA App
This happening to me now. Still no solution for this? My atrix:
System version: 4.5.91.MB860.ATT.en.US
Android version: 2.3.4
Baseband version: N_01.77.30P
Kernel version: [email protected] #2
Build number: 4.5.91
If I set the IPaddress, it wont connect. If I left the IPaddress blank, it automatically set to 192.168.1.253
Help please, thanks.
(FIX): go to wireless settings go into advanced settings. Click on sleep settings chose NEVER! Problem solved! Try it works
Sent from my MB860 using xda premium
If I were you, I would contact at&t and see if you're still under warranty (by default motorola gives you a 1 year warranty). I have had the same shutting down issue with 3 atrixes. my 4th one is actually in the mail and should be here today (wooo... kinda). I also believe that the atrix has a very bad issue with hardware. Ive tried tons of rom, stock and others such as cyanogen, and this issue persist no matter what software you run.
I've had issues with WIFI/Radio causing regular crashing, especially when trying to switch to Airplane mode. I'm running CM7 (stable) and 77.36 radio. I've been able to resolve the problem by booting into CWM and reflashing both CM7 and the radio. Sometimes I have to reflash the radio a couple of times. Eventually it seems to take and then the Atrix is quite stable.
For me, the instability problem occurs whenever I reset the battery stats. After I perform the steps above, it seems to resolve it.
Anyway, if you're running stock, I'd recommend downloading a copy of the radio you're using and try reflashing it a couple of times via CWM before you give up on the phone.
I had the same problem. Returned mine under warranty. They told me that just the day before me they had someone come in with the same problem..
Well... started having this issue recently myself, not too sure exactly what had caused it. I had been flashing a few of NFHimself's Gobstopper's, after my phone took a nose dive (one of the screen shattering, battery flying and denting variety) and I started getting reboots. I hadn't had a chance to play with it prior to the nose dive, but I do know that I had reset the battery stats (something I DON'T normally do when flashing) so I'm hoping I can replicate the fix of radio flashing.
Right now I'm going to keep re-flashing ROM's and Radio's, so far just trying the Gobstoppers 2.2.2 and upwards as well as samcripp's Fruitcakes and this radio, I'll be sure to update if this works. Pretty sure I've voided my warranty a few times over already (unlocking, plus the shattered screen kinda shows signs of abuse) so returning isn't exactly my first idea.
I'm guessing that it would seem to be related to this battery stats issue, as my GPS seems to be working and I'm fairly certain that it is the same chip that controls GPS, WiFi, and Bluetooth. So unless it's some very specific hardware based issue, this is my best guess.
If anyone is aware of any other potential solutions to this issue, or knows of any other Bell Mobility (Canada) radios/ROM's, I'll be more than happy to try your suggestions!
I had a similar issue. My phone would crash multiple times a day. It started after att released an update. I read somewhere that it could be an app causing it so I went into taskmanager and had all apps end after use with the exclusion of pandora and navigation. Problem solved. Not sure what app was causing it but I never had a single crash/random reboot after. Phone was unhacked and the only update on it was the last official one released by att (sorry can't remember the number. I've since upgraded to a Cm7 rom).
Sent from my MB860 using XDA App
Take a look at this:
http://forum.xda-developers.com/showthread.php?p=21277632#post21277632

Radios Issue

I'm having a pretty serious issue with my ATT LG G2 right now. A couple days ago, without installing a new rom or kernel (though I was playing with some stuff in Titanium Backup +donate), my phone started having the following issue:
Less than 50%, by time, cellular access
~half of the time I DO have cell access, no data connection at all.
When I DO have data access, it is never LTE (I'm in an LTE covered area)
I cannot search Network Operators in network settings
Adjusting the Network Preferred Mode always resets after the phone eventually reconnects
WiFi is always fine, as is bluetooth
I've tried the following fixes:
Fix Permissions
Wipe Cache & Dalvik
Full format on system, data, all caches, and internal storage
3 different ROMs --CleanROM XE, PA 4.4, and Grievous
Stock Kernel for AOSP, Wootever and Stock Kernel on Grievous
Reflashing Modems
ATT reconfigured my SIM
APN was fine but I hand jammed a new copy of the original and selected it
changed settings>mobile network settings>network mode
ATT Tech Support sees no problems on the network end
I'm going to try restoring stock firmware tomorrow but I'm thinking my phone needs to be replaced. Any ideas or suggestions would be great.
Thanks!
Maybe the efs partition got corrupted somehow or its a actual hardware/provision issue
Sent from my LG-D802 using XDA Premium 4 mobile app
x714x said:
Maybe the efs partition got corrupted somehow or its a actual hardware/provision issue
Sent from my LG-D802 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
After reading into it, it looks like this might be the problem. Any suggestion for verifying a possible corruption? Seems like the way to see if it is broken is to go through the repair process...
Thanks!

[Q] Unable to connect to mobile data

I finally got superuser working by flashing Echoe Illusion, the full touch-wiz version with Android 4.3. At first it seemed like I had everything working but the next day when I left the house (no longer connected to home wifi) I quickly realized it was refusing to connect to mobile data. I also cannot send text messages, and likewise I can assume I can't get them either. I have tried flashing the nightly CM11 build and 3G connected although LTE did not. I wasn't in an area where I expected reliable LTE anyway so that's not even an issue at this point because I'd very much like to use this Echoe Illusion rom, or another Touch-wiz based one. I just can't go downloading a bunch of them because I have a severe restriction on data usage and have already downloaded Echoe Illusion AND multiple other things. If it matters, my baseband ends in MJA.
I have also attempted to flash different modems with Odin, although all of them failed completely to flash at all and at this point I have to honestly admit I don't know what I'm doing. This is most definitely not my first time rooting...I'm just used to HTC phones, the Evos in particular. Thanks in advance if anyone can help or provide useful tips!
oh and P.S. I can't go back to the stock firmware because I must have flashed an incorrect kernel, and it borked the phone. I only got it working again by flashing a separate rom (Echoe Illusion) and have since flashed other kernels with no ill effect. I had a nandroid backup of the stock rom before I borked it, but every time I try restoring it, it stops at the yellow Sprint screen and won't boot.

[Q] Why does my Wifi & Bluetooth not working even with stock rom?

Hey guys,
I have a Galaxy S4 (i9500). I installed Omega ROM v22 on it and everything went smoothly, Wifi & BT working perfectly.
After a few hours of using the device (nothing special at all, texts and stuff like that) - I noticed my wifi isn't working and by not working I mean that I click the wi-fi button and it changes from gray to the mid-state between gray to green for around 20 seconds before it goes back to green ago.
If I open the menu to see my networks it just says "Enabling" without any networks there.
I had to drive somewhere so I went to my car and tried to enable Bluetooth, and same thing happens there - Bluetooth will not turn on and will stay stuck on mid-state between gray and green for a while and go back to green.
I flashed omega rom v22 again and the problem was gone, or so I thought. I went back to the car for another drive and realized the bluetooth issue is back - and when I got home I realized the wifi issue is back as well.
I figured I need to reset everything so I tried the following:
Full wipe (including dalvik and even including "internal SD card") and then flashing stock rom (from the official website, stock rom of my country).
The issue was back after a few hours. I do not have BT or Wifi access. Yesterday Wifi suddenly started working for a few hours but then it stopped working again.
I really need help! I have no idea what to do with this issue!
Well rule number one when you have problems after flashing without wipe.
1. perform a full wipe and see if the problem persists.
Lennyz1988 said:
Well rule number one when you have problems after flashing without wipe.
1. perform a full wipe and see if the problem persists.
Click to expand...
Click to collapse
Tried that, no luck.
What else would you try?
In some places when people had problems with Wi-Fi they said to flash a different kernel but I don't see why I would have this specific issue with Omega Rom and why the default kernel with it wont work well?
Maybe this could be a root issue? My root works fine but I have this weird gut feeling like this is some permissions thing that's going on.
I'm trying to think why it would work right after the wipe but then stop working shortly after.
Another symptom: It randomly started working for a few minutes and then stopped again (around three hours ago).
Any idea what's going on?
Well, if you fully wiped and didn't restore any apps and settings then it can be two other things.
Or it's a bug in the rom or a hardware failure in your phone.
I would suggest trying a different rom first. Do not restore anything, not even your google account.
wi-fi fix?
Do you actually have an i9505? or is it a canadian or att version? if its the latter sometimes the devs offer some wifi-fixes, also try a different kernel. otherwise it could be that your radio/modem are not compatible with the version of the ROM you are flashing.
Tried arrow ROM and this issue doesn't seem to happen in this rom. Hope it stays like that...
morhsn said:
Tried arrow ROM and this issue doesn't seem to happen in this rom. Hope it stays like that...
Click to expand...
Click to collapse
Sadly, it did happen with this rom, after just a few hours.
I'm now using stock rom and still suffering from the issue.
Does anyone have ANY idea what I can do to fix this?
Thanks in advance!

No Data on Verizon

So, I was using my phone at a mall. I stepped into a store and I noticed I had no more LTE. The signal was weak, so I thought it was just the building. So I got to a stronger area and restarted the phone, and still no data. I tried restarting several times and I tried selecting different APNs (I'm running 7/15 nightly of CM13). Eventually, I took the sim card out of my wife's iPhone 6S and the LTE worked fine. My sim card worked OK in here phone as well. But once I put mine back in, I have no data (not even 2g or 3g). I thought it was just my sim card, but then I can't understand why it works in my wife's iPhone 6S. Any ideas? I'm updating to the latest nightly of CM13.
ambig88 said:
So, I was using my phone at a mall. I stepped into a store and I noticed I had no more LTE. The signal was weak, so I thought it was just the building. So I got to a stronger area and restarted the phone, and still no data. I tried restarting several times and I tried selecting different APNs (I'm running 7/15 nightly of CM13). Eventually, I took the sim card out of my wife's iPhone 6S and the LTE worked fine. My sim card worked OK in here phone as well. But once I put mine back in, I have no data (not even 2g or 3g). I thought it was just my sim card, but then I can't understand why it works in my wife's iPhone 6S. Any ideas? I'm updating to the latest nightly of CM13.
Click to expand...
Click to collapse
My suggestion is to start fresh by fastboot flashing the latest 6.0.1 factory images. Verify that your mobile data/LTE are working. Then, install TWRP. I would also download a fresh copy if the CM13 ROM and verify the md5 is correct. Flash CM13 again and see if you have LTE again. If you don't have LTE after flashing CM13 again we know it is something that has changed in the ROM.
Sent from my Nexus 6 using XDA-Developers mobile app
fast69mopar said:
My suggestion is to start fresh by fastboot flashing the latest 6.0.1 factory images. Verify that your mobile data/LTE are working. Then, install TWRP. I would also download a fresh copy if the CM13 ROM and verify the md5 is correct. Flash CM13 again and see if you have LTE again. If you don't have LTE after flashing CM13 again we know it is something that has changed in the ROM.
Click to expand...
Click to collapse
I think you're right. I'm going to have to do this. I got a new SIM card from Verizon and data was fine. Then once I went to work and entered into my office, which has a poor signal, I wasn't able to get data back (can still call and send/receive texts). It makes no sense as to why it won't reconnect after a reboot, but I guess this is the only option.
Yeah I agree. Fastboot flash the factory images to give yourself a fresh start. Confirm that everything is working on a fully stock build. Then root, recovery and flash. I would try a different ROM that is not CM based to see how your voice and data works. Let us know how it goes that way others in the forum who may run into this issue can read about what was performed on your device and know what to do to help themselves. Good luck.
Sent from my Nexus 6 using XDA-Developers mobile app
fast69mopar said:
Yeah I agree. Fastboot flash the factory images to give yourself a fresh start. Confirm that everything is working on a fully stock build. Then root, recovery and flash. I would try a different ROM that is not CM based to see how your voice and data works. Let us know how it goes that way others in the forum who may run into this issue can read about what was performed on your device and know what to do to help themselves. Good luck.
Click to expand...
Click to collapse
So I flashed the factory images back onto my phone and I got data back. I guess there is a strange bug in the latest nightly of CM13. Of course, I haven't been able to go to an area where I have poor reception. Now I have to find a ROM that offers the LiveDisplay feature CM13 offered. I like my screen to be a bit colder than what Huawei calibrates their displays to.
ambig88 said:
So I flashed the factory images back onto my phone and I got data back. I guess there is a strange bug in the latest nightly of CM13. Of course, I haven't been able to go to an area where I have poor reception. Now I have to find a ROM that offers the LiveDisplay feature CM13 offered. I like my screen to be a bit colder than what Huawei calibrates their displays to.
Click to expand...
Click to collapse
I knew there was something in the CM13 based ROM's that was causing you to lose data. Also, If you use a custom kernel like Elemental or Elite you can control the screen colors and make it how you like it. Give Pure Nexus a try. It's a super nice ROM. The dev is awesome. He does great work. Maybe give Chroma a shot. Also, you could try Resurrection Remix. It's a CM based ROM but it may not give you the data issues. It's worth a try. Lemme know what works. Good job on getting the factory images flashed and getting data back too.
Sent from my Nexus 6 using XDA-Developers mobile app

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