My galaxy s4 won't connect after custom ROM - Galaxy S 4 Q&A, Help & Troubleshooting

My galaxy s4 lte us cellular version (sch r970) won't connect to the internet ams idk why.. It gets signal.. I went back to stock and its still doing the same thing

rileyfallan said:
My galaxy s4 lte us cellular version (sch r970) won't connect to the internet ams idk why.. It gets signal.. I went back to stock and its still doing the same thing
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Is it configured correctly? (Proper apn are present?)
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I couldn't find the APN settings
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Also it won't make phone calls
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rileyfallan said:
Also it won't make phone calls
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
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Here are a few things you can do.
Restart your phone.
Call customer support of ur cellular company.
Flash the stock rom using odin.
Don't hesitate to hit the thanks button
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maxsam4 said:
Here are a few things you can do.
Restart your phone.
Call customer support of ur cellular company.
Flash the stock rom using odin.
Don't hesitate to hit the thanks button
Sent from my GT-I9500 using XDA Premium 4 mobile app
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rileyfallan said:
My galaxy s4 lte us cellular version (sch r970) won't connect to the internet ams idk why.. It gets signal.. I went back to stock and its still doing the same thing
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As you said that you have flashed a custom ROM and now on stock rom,
Check whether you still have the IMEI #.
Also try insterting the Sim card on another device to check if Sim working, if working then try doing a factory reset.
Also once factory reset done as go in Setting-More Networks-Mobile Networks-Access points-Reset to default.
Try the above steps and let me know if problem still persists.
Dont forget to click the Thank button:good:

Related

!! Please Help!!! Nandroid Backup of system and EFS partitions Only

Hey Xda and thanks for viewing this thread I am in the process of flashing my New Sprint galaxy s4 to boost mobile but because this device has never been activated on a sprint account I cannot perform and system profile update or an prl update would someone be willing to do a nandroid of system and efs partitions on an device that have been activated on an account already it can be from a clean flash as long as the sprint activation is not being displayed on the device ,,it has been discussed it the note 2 forum but they now have a fix for it
can read up on it here also
http://forum.xda-developers.com/showthread.php?p=42557555#post42557555
http://forum.xda-developers.com/showthread.php?t=2060085&page=50
Thank you
Anyone?
Sent from my SPH-L710 using xda app-developers app
Sofocused504 said:
Anyone?
Sent from my SPH-L710 using xda app-developers app
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Did you ever get any help with this? I have been reading the Note 2 post, and I think I may have read the whole thing from where they started talking about the S4 till the end, as well as about half the rest. I cannot get my S4 to get data working at all. I am in need of the Nandroid backup as well, unless you got it and it didn't work for you.
Nope no one seems to want to help ..but I have gotten the 3g function to work on the s4 by flashing the correct aaa passwords still cannot update profile or prl
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Sofocused504 said:
Nope no one seems to want to help ..but I have gotten the 3g function to work on the s4 by flashing the correct aaa passwords still cannot update profile or prl
Sent from my SPH-L720 using xda app-developers app
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I was coming from a TP2, but that data didn't seem to work. Where you using the same phone, or something else?
I was using an boost incognito as a donor im the settings under data connections set it to cdma only tjats the only way the settings from the donor will work on the s4
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Sofocused504 said:
I was using an boost incognito as a donor im the settings under data connections set it to cdma only tjats the only way the settings from the donor will work on the s4
Sent from my SPH-L720 using xda app-developers app
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Is that setting the one under Settings ->Connections -> More networks ->Network mode, or somewhere else?
Thanks!!
Yes there
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Sofocused504 said:
Yes there
Sent from my SPH-L720 using xda app-developers app
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Thanks! I had made it CDMA only, but not in there, in ##DATA#.
You know what, this means that I may have gone through all the headache for nothing. I'll start over and we'll see, it may all work without need of *2/activation.
Yeah the *2 method will not work unless the s4 was previously activated on a sprint account
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Sofocused504 said:
Yeah the *2 method will not work unless the s4 was previously activated on a sprint account
Sent from my SPH-L720 using xda app-developers app
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Well, changing the data to CDMA didn't work either. I also have been reading on Nandroid backups that may help with this, and I think what we would need is the carrier. Someone said that EFS is ok to share, but carrier one would have user specific data once it has been activated. So, I guess my fix will be to get them activated on a Sprint line first, then go through the flash.
Thanks for your help!

[Q] what baseband recommend?

hello
Need you help for selected baseband, my carrier is telcel from México.
because my nexus no signal
what recommend?
thanks
I'm using a nexus 4 on Telcel also and I have no problem. Maybe you should re flash the stock image and see if it works. And check your APNs.
Sent from my Nexus 4 using Tapatalk 4
Feo2_0 said:
hello
Need you help for selected baseband, my carrier is telcel from México.
because my nexus no signal
what recommend?
thanks
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From my experience it is different on every phone and cellular operator.. Just try them
Sent from my Nexus 4 using xda app-developers app
raul90 said:
I'm using a nexus 4 on Telcel also and I have no problem. Maybe you should re flash the stock image and see if it works. And check your APNs.
Sent from my Nexus 4 using Tapatalk 4
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i trying change apn, the problem continue. can send me the apn do you use to see if it works by PM.
MasterLinuxer said:
From my experience it is different on every phone and cellular operator.. Just try them
Sent from my Nexus 4 using xda app-developers app
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if get signal by moment trying call and not sound and sometimes the app phone crashed the screen is black need press home buttom after signal lost.
you should restore your phone with a stock image, and see if that helps.
Sent from my Nexus 4 using Tapatalk 4
raul90 said:
you should restore your phone with a stock image, and see if that helps.
Sent from my Nexus 4 using Tapatalk 4
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I´m trying restore with 4.2.2 4.3 and the problem continue.
With 4.2.1 and CM10 signal back, if make call and not sound and sometimes the app phone crashed the screen is black need press home buttom after signal lost.

[Q] Galaxy S4 I9500 weak signal

Firstly i live in Kosovo (small country in Eastern Europe) and i use IPKO Mobitel sim card.
I am having a very weak signal on my Octa variant , i did root it in the past and changed the firmwares 2-3 times and flashed CM11 but after coming to stock non-rooted 4.3 i am having poor signal always 1 bar and sometimes even 0 when im at my home. I tried flashing different modems but still same no loss or gain..
http://i.imgur.com/D6IEVFu.png
Any help ? Which modem do you guys recommend ?
Thanks.
You on 2g or 3g?
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maxsam4 said:
You on 2g or 3g?
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2G
stratzeH' said:
2G
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Go to Settings>More Networks>Mobile networks>Network mode and change it to gsm only. if it doesn't help then change it to wcdma only and if even that doesn't work then change to auto connect and get a new connection from a better company
Note: It takes some time to switch network mode so be patient and give it a minute or two to properly shift.
Seeing improvements after doing what you told.
Thanks alot.
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stratzeH' said:
Seeing improvements after doing what you told.
Thanks alot.
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Hit the thanks button if you appreciate my post -_-
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hey
arber95 said:
Seeing improvements after doing what you told.
Thanks alot.
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how did u get this screen?

simple question

im currently running sgh i337 on nb1 .. If I were to odin it back to amdl will I brick the phone ..
all stock roms ..
You can't Odin back, it'll fail. It won't brick but it won't work.
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jd1639 said:
You can't Odin back, it'll fail. It won't brick but it won't work.
Sent from my Nexus 5 using XDA Free mobile app
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thanks for the info .. I have a weird issue .. I unlocked the phone to use on tmobile ... it was working fine for a week but all the sudden I get no signal and under settings in bout device under status it says network unknown and not in service .. but I still have my imei and serial and everything in my efs folder .. got any idea what might be wrong
@moe said:
thanks for the info .. I have a weird issue .. I unlocked the phone to use on tmobile ... it was working fine for a week but all the sudden I get no signal and under settings in bout device under status it says network unknown and not in service .. but I still have my imei and serial and everything in my efs folder .. got any idea what might be wrong
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Check to see if your apn is set up correctly. Settings, wireless and networks, more, mobile networks, access point names
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jd1639 said:
Check to see if your apn is set up correctly. Settings, wireless and networks, more, mobile networks, access point names
Sent from my Nexus 5 using XDA Free mobile app
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thx for.the advice but I triple checked everything
@moe said:
thx for.the advice but I triple checked everything
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Might be a sim card problem. You've probably taken it out and put it back in? You might have to get a new one
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jd1639 said:
Might be a sim card problem. You've probably taken it out and put it back in? You might have to get a new one
Sent from my Nexus 5 using XDA Free mobile app
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I was thinking maybe the sim. card. tray .. I should be gettn the new one today .. ..do u know if the wifi antenna and the gsm antenna r on the same relay
@moe said:
I was thinking maybe the sim. card. tray .. I should be gettn the new one today .. ..do u know if the wifi antenna and the gsm antenna r on the same relay
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That I don't know.
Sent from my Nexus 5 using XDA Free mobile app

[Q] Cannot get a signal AT ALL

Please help!!! I can't get a mobile signal for the life of me. I get wifi and LTE, but no 2G or 3G??? I've factory resetted, flashed modems only, tried different roms. Everything. I'm starting to think it might be the hardware. If anyone has any knowledge, please share. As of now I'm back on NAE baseband since the NG2 upgrade started all this. Or maybe it was mobile odin. IDK it was one of those.
I would rather have lte than 2 or 3g. You could always change the settings for mobile networks to only pick up 3g and see if that works.
Sent from my SPH-L720 using XDA Free mobile app
But I cannot make a call at all. There is no 3G period. Tried everything
Have you tried removing the sim card and powering the phone up without it?
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beezie42 said:
Have you tried removing the sim card and powering the phone up without it?
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And what is that supposed to do?
SB03 said:
And what is that supposed to do?
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Whenever I do this on my phone it puts it into cdma mode.
Will also help rule out what's wrong
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beezie42 said:
Whenever I do this on my phone it puts it into cdma mode.
Will also help rule out what's wrong
Sent from my SPH-L720 using Tapatalk
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That didn't work. But I fixed it using ##72786#

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