Develop Bugs

[Q] network problem after rooting installing roms

The other day I took the plunge and decided to root my phone and install some ROMs. It was all going well until I started noticing that I wasn't able to make/receive calls or texts. I had gio pro 1.4 installed when I first noticed this problem and I had read that installing cyanogenmod 7.2 had helped someone with a similar issue so I installed it.
Now I have cnmod 7.2 installed with the same problem and with my carrier name changed from virgin to bell. If I restart my phone I am able to call and send messages for a few minutes but then craps out again.
Hopefully someone can help me
Thanks in advance!

no network problem
unfortunately u are having the same issue as me you have to select use 2g only which is only good if you are on a network that supports 2g the nv data file become corrupt somehow and you lose 3g capability i am trying to figure away to fix the gio but to no avail right now

jasonivany1980 said:
unfortunately u are having the same issue as me you have to select use 2g only which is only good if you are on a network that supports 2g the nv data file become corrupt somehow and you lose 3g capability i am trying to figure away to fix the gio but to no avail right now
Click to expand...
Click to collapse
Actually I found out why I was having this problem recently. Turns out I have a different model of the gio (gt-5660M) . When I installed gio pro 1.4 I completely overwrote my stock firmware including the baseband so it screwed up my network settings. I had to find my stock firmware, flash it using Odin and then I just installed clockwork recovery and flashed cyanogenmod 7.2 using that. It's been fine working since then.
Thanks anyway!

well atleast your lucky i restored my original software and it has the right modem when i do a network search it picks up the 3g networks just wont connect to them

Yes, I accidentally did the same to my GT-S5660M. What I did was reflashed the stock ROM and then rooted, installed CWM recovery, and flashed a custom ROM, being careful not to override the baseband. Thankfully the ROM I flashed used CWM recovery and not Odin, and I didn't have to worry about a thing.

[FIXED] Mobile data doesn't work with custom ROMS

Hello,
I purchased the new Nexus 7 LTE last friday. The very next day I unlocked, rooted, and installed the ElementalX kernel (with the stock ROM) . All worked well.
Sunday I tried installing a ROM (IceCold). It ran fine, and I was on wifi, so everything was working. Until I go out of my house. Mobile data was not working at all. I later reflashed stock, and did a factory reset. Mobile data worked again.
I thought it might just be the ROM, so I decided to instead flash P.A.C Nightly 4.3.1 with default kernel, and again, same issue. The mobile data icon is grayed out, unless I connect to wifi, and then it goes back to the blue color.
I have tried everything I could think of:
Restore stock recovery, kernel, and ROM.
Help would be greatly appreciated. Thanks ya'll.

Bump
Does no one have the same problems? Could this just be me missing something?

You are probably using a rom for flo Devices that do not have lte or 3g connectivity. Only use roms from the "nexus 7 (2013) LTE Android Development" forum!
Sent from my Nexus 7 using XDA Premium 4 mobile app

It could be that the custom ROM you are trying does not include the APN for your carrier. Go to Settings -> More -> Mobile Networks -> Access Point Names. You will need to find the correct APN settings for your carrier. You could copy them down while you're on stock, or look them up online.

Dabarr said:
You are probably using a rom for flo Devices that do not have lte or 3g connectivity. Only use roms from the "nexus 7 (2013) LTE Android Development" forum!
Sent from my Nexus 7 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
No, I checked this. The first ROM I tried installing wouldn't install because of it being for flo devices. However the next two were both made for deb devices. So that wasn't the issue. Thanks though.
raptir said:
It could be that the custom ROM you are trying does not include the APN for your carrier. Go to Settings -> More -> Mobile Networks -> Access Point Names. You will need to find the correct APN settings for your carrier. You could copy them down while you're on stock, or look them up online.
Click to expand...
Click to collapse
This does make a lot of sense, could it be it's not reading the Sim correctly perhaps? I'll be sure to try this when I get the chance.

Most APN settings are easily found with search of the carrier name and APN. You may have to enter these manually.
Did you try mobile data before rooting and installing a ROM/Kernel?

Wrngway said:
Most APN settings are easily found with search of the carrier name and APN. You may have to enter these manually.
Did you try mobile data before rooting and installing a ROM/Kernel?
Click to expand...
Click to collapse
Data worked before during stock, and when I had a custom Kernel with the stock ROM. So the cause definitely had something to do with the ROM. After I reset everything (relocked and unrooted) it still works. I am redoing the unlock and root as I type this, and I will hopefully get a ROM installed and check to see if the APN settings really were the problem

Flare_ said:
Data worked before during stock, and when I had a custom Kernel with the stock ROM. So the cause definitely had something to do with the ROM. After I reset everything (relocked and unrooted) it still works. I am redoing the unlock and root as I type this, and I will hopefully get a ROM installed and check to see if the APN settings really were the problem
Click to expand...
Click to collapse
Well that's good news. The only reason I asked was to make sure it wasn't possibly hardware related.

raptir said:
It could be that the custom ROM you are trying does not include the APN for your carrier. Go to Settings -> More -> Mobile Networks -> Access Point Names. You will need to find the correct APN settings for your carrier. You could copy them down while you're on stock, or look them up online.
Click to expand...
Click to collapse
Wrngway said:
Well that's good news. The only reason I asked was to make sure it wasn't possibly hardware related.
Click to expand...
Click to collapse
Woot! APN settings fixed it. Thanks y'all. Definitely saved me a lot of hassle with my insane schedule I have going on, I appreciate it greatly.
Have a good one
-Matt

[Q] LG Optimus G No network (Help please)

I had the CM11 rom...flashed the Vanir rom and since have not been able to get any network. I made a backup before and reverted to that backup but now theres no network even in CM11...I am using the LG F180S...Help please :\

neaznc021 said:
I had the CM11 rom...flashed the Vanir rom and since have not been able to get any network. I made a backup before and reverted to that backup but now theres no network even in CM11...I am using the LG F180S...Help please :\
Click to expand...
Click to collapse
I had similar problem.
I'm on E975 and I was able to get networks connecting manually because LTE is on by default (but it was always droping)
After changing to 3G no more problems. Have you tried this?
P.S. I never tried to solve the 4G issue but probably I need to change APN settings.

rimsilva said:
I had similar problem.
I'm on E975 and I was able to get networks connecting manually because LTE is on by default (but it was always droping)
After changing to 3G no more problems. Have you tried this?
P.S. I never tried to solve the 4G issue but probably I need to change APN settings.
Click to expand...
Click to collapse
Mine doesn't even recognize the network. Can't even search for it manually. I reflashed the KDZ and flashed the baseband still no network :\

Don't understand what you mean... after reboot you get any message? What do you have in status bar? the red cross over the signal icon?
That what I was getting...
You can't go to setting - more - mobile networks - network operators and seach networks? Why, it's grey?

rimsilva said:
Don't understand what you mean... after reboot you get any message? What do you have in status bar? the red cross over the signal icon?
That what I was getting...
You can't go to setting - more - mobile networks - network operators and seach networks? Why, it's grey?
Click to expand...
Click to collapse
Yeah I;m getting the red cross. When I was in CM 11, I tried searching for networks manually but it would just be a loop. So I reflashed the LGF180S KDZ and I am back to stock. Still I have the red cross and the stock rom does not allow to search for networks manually.

neaznc021 said:
Yeah I;m getting the red cross. When I was in CM 11, I tried searching for networks manually but it would just be a loop. So I reflashed the LGF180S KDZ and I am back to stock. Still I have the red cross and the stock rom does not allow to search for networks manually.
Click to expand...
Click to collapse
I'm with E975 stock ROM and I have the options to search network, as I mention above and you should have too.
The problem here could be that it's grey and you are not allowed to do it, but the option is there, is that your case?
I'm not sure if I had that before (you know so many flashes...) but I've always solved my issues by restoring to a previous works ROM. I remember that I got GPS issues too and I restore a ROM backup.
I believe that I can't help more

flash baseband and you're done

and8eye said:
flash baseband and you're done
Click to expand...
Click to collapse
tried and didn't work...Had to flash e975 kdz and flash f180s modem through CWM

me also have the samr problem.where to het naseband?
Sent from my LG-E975 using xda app-developers app

This post may help yu... Use it as reference
http://forum.xda-developers.com/showthread.php?p=47101752
Sent from my LG-E975 powering Stock 4.1.2

first if you read a little and ask in the Vanir rom thread if you can't see which of the 2 roms are for your phone, you need to have the correct modem flashed to the rom aswell, plus using the right APN's or else you can have network trouble.
i am running stock CM11 on my own E975 and it don't have any mobile network when i do a reboot or a cold boot, but then i go in and search for network and all networks in my country shows up, and i just choose the one i want and i get 3g/4g LTE no problem there

[Q] How to enable network data after installing Cyanogenmod CM11 M7?

I tried flashing a custom ROM for the first time last night and so far I am really loving it. The only problem is, after flashing the CM11 M7 ROM it wont access any data over the cell network. I did figure out that if using Titanium Backup I restore my stock ROMs 4.3 data only from the Phone/Messaging Storage (SMS/MMS/APN) then reboot the network data does work. However, this causes the SMS to cease functioning. As soon as any app (default messenger, hangouts, 2-3 others I tried from store) tries to open it immediately crashes. Interestingly, it also will not allow me to restore my SMS records using Super Backup at this point. If I go back into Titanium backup then wipe the data for this process then the SMS starts working again, but all the old messages have been cleared, and as soon as I restart the phone the Network data is not working again.
Any ideas on what to do? I am wondering if maybe I need to adjust something in my APN profile, though I have absolutely no idea where I would get the information to do this.
This is what I am working with:
Phone: Samsung Galaxy S3 i747 (AT&T) -- [though currently I am using a TIGO sim card in Guatemala, wonder if this could have anything to do with it? was not a problem prior to switching the ROM though]
ROM: cm-11-20140608-SNAPSHOT-M7-d2lte.zip , the Cyanogenmod CM11 Snapshot lte release from yesterday
Android Version: 4.4.2
Baseband Version: I747UCUEMJB
Kernel Version: 3.4.91-cyanogenmod-g9b9605b8 [email protected] #1
Anyways, only having one or the other of my network data vs sms working is not really an option for me, so need to figure something out.
Thanks!

bnook said:
I tried flashing a custom ROM for the first time last night and so far I am really loving it. The only problem is, after flashing the CM11 M7 ROM it wont access any data over the cell network. I did figure out that if using Titanium Backup I restore my stock ROMs 4.3 data only from the Phone/Messaging Storage (SMS/MMS/APN) then reboot the network data does work. However, this causes the SMS to cease functioning. As soon as any app (default messenger, hangouts, 2-3 others I tried from store) tries to open it immediately crashes. Interestingly, it also will not allow me to restore my SMS records using Super Backup at this point. If I go back into Titanium backup then wipe the data for this process then the SMS starts working again, but all the old messages have been cleared, and as soon as I restart the phone the Network data is not working again.
Any ideas on what to do? I am wondering if maybe I need to adjust something in my APN profile, though I have absolutely no idea where I would get the information to do this.
This is what I am working with:
Phone: Samsung Galaxy S3 i747 (AT&T) -- [though currently I am using a TIGO sim card in Guatemala, wonder if this could have anything to do with it? was not a problem prior to switching the ROM though]
ROM: cm-11-20140608-SNAPSHOT-M7-d2lte.zip , the Cyanogenmod CM11 Snapshot lte release from yesterday
Android Version: 4.4.2
Baseband Version: I747UCUEMJB
Kernel Version: 3.4.91-cyanogenmod-g9b9605b8 [email protected] #1
Anyways, only having one or the other of my network data vs sms working is not really an option for me, so need to figure something out.
Thanks!
Click to expand...
Click to collapse
I apologize in advanced for not answering your question.
Is your issue that you cannot even get a signal with CM installed? I am also having the same issue.
Did your phone get signal/mobile network with the stock ROM? I am unable to find out if mine will work right now because it would take me a few days to download the stock ROM image...
Will be following this thread...
Mike

Have you checked that the APN on your phone is the right one for your carrier? Google search apn tigo guatemala galaxy s3 Many useful results will come up.

Ok here is how this played out. I did just need to reset then re enter the apn info for tigo in Guatemala. I actually managed to pull this info out of my pre flash backup from when I was using the stock Rom, then wipe the data for the process mentioned. This restored sms functionality and I then was able to manually enter the apn info (if anyone needs the Guatemala tigo apn info just post here and I can grab it when I am next at my cpu). I find it interesting that the apn info was automatically present and correct when I was using the stock Rom, but when I flashed cm11 over it was not there.
Just arrived back in the US and popped in my AT&T SIM card, everything worked fine right off the bat with it.
In answer to your question, after flashing cm11 I did have signal, but only for calls and sms. The data component of the network was not recognized.
Sent from my SAMSUNG-SGH-I747 using Tapatalk

[Q] FreedomPop- no data with Cyanogen, data with stock

Hey guys,
I am trying to get my Galaxy S3 working on the Freedompop network with BYOD.
I flashed to stock firmware:
MD4_update_FULL_Odex.zip
because the MSL code (##786#) that I was supposed to use to reconfigure the radio to Freedompop's network, did not work in CyanogenMod.
In the stock firmware, the code worked, and I got cellular data and voice. However, when I flashed back to CM, the Sprint icon is orange, and I don't have data connectivity any more.
This is the version of CM I flashed to:
cm-11-20140708-SNAPSHOT-M8-d2lte.zip
Any ideas for what could be wrong?

dezork said:
Hey guys,
I am trying to get my Galaxy S3 working on the Freedompop network with BYOD.
I flashed to stock firmware:
MD4_update_FULL_Odex.zip
because the MSL code (##786#) that I was supposed to use to reconfigure the radio to Freedompop's network, did not work in CyanogenMod.
In the stock firmware, the code worked, and I got cellular data and voice. However, when I flashed back to CM, the Sprint icon is orange, and I don't have data connectivity any more.
This is the version of CM I flashed to:
cm-11-20140708-SNAPSHOT-M8-d2lte.zip
Any ideas for what could be wrong?
Click to expand...
Click to collapse
Same with Carbon, but in carbon if the preferred network is 3G, or 1x, it will connect to those networks but it will not connect to LTE. I also noticed that in carbon it connects to LTE and 1xRTT instead of LTE and 1x800. Also does anyone know any possible way to go to 4.1.2 stock (from stock 4.4.2 KK)? I am also on FreedomPop btw.

Found A Fix
I searched a bit and found a fix, that didn't work at first but worked if you use it a specific way. It's the APN causing the issue. This was found out by user Merudo here on XDA. The fix is to do this:
1. Download a Ting APN fix .zip
2. Go on the ROM with working LTE (stock) and take it's apns-conf.xml (it's in /system/etc/) and copy it to the computer
3. Replace the apns-conf.xml in the Ting APN fix
4. Copy to phone with ROM and Gapps
5. Flash it in right after you flash your rom and gapps (e.g. 1st flash your rom then gapps then the APN fix)
6. Reboot and setup and it should work.
Again Kudos to Merudo for figuring this out.

Anyone get note 3 working on here? I'm on boost now with on 3g.. wondering if I can flash just a uicc card to freedom pop lte??