[Q] 4g broken? - Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot

Hey guys, so I've been messing around with a lot of custom ROMs lately, but this here has stumped me. I've been running the CM11 nightlies, but yesterday I heard about the Sammy Deluxe ROM, one that was designed to look like the S5. It was for a different carrier. After seeing this post http://forum.xda-developers.com/showthread.php?t=2698799 , I thought I'd give changing the APN's a shot, but it turns out the Dev hasn't implemented a menu for this yet. I decide to go bank with a nandroid restore, and my 4g won't seem to turn on. Manually selecting any APN causes no signal then it switches back. Any ideas guys?
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If on touchwiz ROM for Sprint. Update prl and profile then reboot if that doesn't work. While connected to wifi, in the dialer put ##72786#. This will reactivate the phone.
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Not on TouchWiz. CM11 Nightlies.
Sent from my SPH-L720 using xda app-developers app

I suggest you go to touchwiz.
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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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Click to collapse
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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Click to collapse
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]Low or no signal?

I've been experiencing low or no signal on my GS4. Especially if I flash to an AOSP rom. I have no idea y. I had originally gotten the S4 Active, but for the brief time I had that phone my signal was not a problem. I already called AT&T to get a replacement. So I'm gonna see how that goes but just wanted to know if anyone else is experiencing anything like this?
Sent from my SAMSUNG-SGH-I337 using xda premium
Have you tried a different radio?
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Help GS4 signal issues

Recently the signal on my phone no longer shows 3g/4g but instead 1x I know it's not where I am because my dads gs4 will have full 3g and I'll have like 1bar of 1x I have tried multiple ROMs I have also flashed MF9 radios via Odin thinking this would solve my issue but no luck their. Can someone please help me get my 3g/4g back
Sent from my SPH-L720 using Tapatalk 4
Have you tried to update your prl and profile ?
Oh and are you on AOSP based ROM ? Most people tend to have lower signal and 1x more. Than when on touch wiz.
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Fixed it turned on airplane mode and then turned it off now I have 3g
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4.4.2 problem s

1. Why did so many apps disappear?
2. Why is home WiFi "unstable" Internet connection ?
FYI OTA upDate worked on safe root
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If you're talking about personal apps you should reboot the phone. They will reappear. For WiFi I've had no real issues. Just spent the weekend at my cousins house and I wasnt disconnected at all.
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cinnamngrl said:
1. Why did so many apps disappear?
2. Why is home WiFi "unstable" Internet connection ?
FYI OTA upDate worked on safe root
Sent from my SPH-L720 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I forget the actual name of the setting but look for something like "smart mode" under WiFi settings as well as avoid poor connections and turn both of those off. See if that helps you at all. Did for me
Verizon S4
Liquid Smooth 4.4
&
Sprint S4
Negalite 4.4

Phone will no longer rotate

Hey guys. I hate when I'm not able to figure things out on my own, but this one has me beat.
I recently discovered that my auto rotation has stopped working, I was on the latest AEONFLEX, and I've tried switching to CM11, and also a fresh install, with a system wipe, of AEONFLEX.
It was completely random when it sopped working, and there hasn't been any drops or anything like that, I haven't even had a case on the phone.
I hope someone has had this issue before, because I DEFINITELY do not want to have to go through LG to get it repaired if it were something internal.
Any suggestions? Thanks in advance!
nbunn said:
Hey guys. I hate when I'm not able to figure things out on my own, but this one has me beat.
I recently discovered that my auto rotation has stopped working, I was on the latest AEONFLEX, and I've tried switching to CM11, and also a fresh install, with a system wipe, of AEONFLEX.
It was completely random when it sopped working, and there hasn't been any drops or anything like that, I haven't even had a case on the phone.
I hope someone has had this issue before, because I DEFINITELY do not want to have to go through LG to get it repaired if it were something internal.
Any suggestions? Thanks in advance!
Click to expand...
Click to collapse
Are you on Verizon?
Does tilting work in games?
Good question. I'm actually on ATT, and I'll check the games in a minute.
EDIT: no, no tilting in angry birds GO.
That's not good
Sent from my LG-D800 using xda app-developers app
Do you guys think it is a permanent hardware issue?
Sent from my LG-D800 using xda app-developers app
nbunn said:
Do you guys think it is a permanent hardware issue?
Sent from my LG-D800 using xda app-developers app
Click to expand...
Click to collapse
Did you flash back to stock to see if it still persist?
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Try flash different mode.
Sent from my LG-D802 using Tapatalk
I hadn't tried stock yet, but flashing a new modem worked. Like what even? How can a modem effect a sensor like that? I had flashed the kit kat modem and apparently that messed it up.
Its fixed now though. Thanks a ton!!! I thought I was going to be sending this thing to LG
Sent from my LG-D800 using xda app-developers app
Looks like you fixed it but sometimes its a new launcher so check settings
Nice!
Glad you were able to save your phone
Might have been just a problem of cache or something that was cleaned when you flashed the modem!
Yet it worked, so problem "solved" haha
nbunn said:
I hadn't tried stock yet, but flashing a new modem worked. Like what even? How can a modem effect a sensor like that? I had flashed the kit kat modem and apparently that messed it up.
Its fixed now though. Thanks a ton!!! I thought I was going to be sending this thing to LG
Sent from my LG-D800 using xda app-developers app
Click to expand...
Click to collapse
Actually this happened to me too. I created a flashable zip to flash the new kit kat modem on my CM11 install. I cleared dalvik and cache, flashed the modem, rebooted and there is no auto rotate. Flashed the old modem back and auto rotate worked?? I don't get how flashing the modem disables auto rotate.
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Modem might carry gyro code.
I had this happen and my fix was disabling auto rotate, running the motion sensor calibration on a flat surface and then re-enabling auto rotate again. Haven't had any issue since.
Sent from my VS980 4G using XDA Premium 4 mobile app
BreakingVZW said:
I had this happen and my fix was disabling auto rotate, running the motion sensor calibration on a flat surface and then re-enabling auto rotate again. Haven't had any issue since.
Sent from my VS980 4G using XDA Premium 4 mobile app
Click to expand...
Click to collapse
For some reason I don't have the option to calibrate the motion sensor on CM11?
Any other apps i can try to calibrate the sensor?

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