[Q] WiFi but no mobile - Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot

Hoping for some knowledgeable assistance here because FreedomPop has been no help. Two issues, probably related:
I have the SPH-720T 0A3 activated with FreedomPop but it only works over WiFi. I can't connect over 3G/LTE.
I get the Sprint Hands Free Activation on bootup and whenever I try to update Profile and PRL.
I'm rooted and have TWRP. I've tried a couple of ROMs, but they had the same behavior, so I reverted back to stock. I tried changing to CDMA mode and that brings up the 3G icon, but still no data access. It boots up with no APN checked and without the FreedomPop APN; I added the FP APN, but it doesn't help and disappears on reboot. I tried changing MDN and MSID to my FP phone number, but that also hasn't helped and they revert back on reboot. Mobile data is on.
I would appreciate any help on figuring out what exactly the problem is and whether I can fix it or if there is something I can go to FreedomPop or Sprint with and tell them what needs to be done. I'm new to all this but don't mind learning or following directions.
Many thanks.

Related

[Q] APN Deleted - MF3 Rooted

Hi all, I'm new to the forum and need some help. I have an MF3 rooted GS4. Last night I did a factory reset and after going through the process, I received a message that said com.android.phone process stopped working. I tried to make a call and had no issues. I was also connected to home wifi so no data issues. Today I added ATT visual voicemail (worked before the reset) and couldn't get an authentication and it said check APN. I go into that and notice the settings are gone and there is no option for Phone or ATT - I also can't access any 4G LTE data. I found some APN settings, entered and then it worked. I then did one more reset to ensure all was well and start from scratch and the processed stopped message showed up again.
Edit: this also shows up each time I restart the phone. Eventually goes away and LTE Data shows up.
Why does the process show up after reboot? Is there anything I can do to make the error go away? Anything wrong with using the APN manually entered if it works?
Thanks for any help you can provide
So I found out that the APN settings stick and I have LTE, but the error shows up twice on each reboot. Hoping someone can help me to get this fixed.

HELP I broke my LTE

First off I'm using an unlocked S5 on straight talk's LTE network, have been for about 9 months with no problems. I've talked to support twice and they reactivated networks and all that good stuff, and when none of that worked sent me a new sim, which I have just activated and it still didn't fix my problem - so I'm finally bringing my issue here.
Last week I decided to update from phoenix rom oc4 (I think it was oc4) to optimal rom og5 (15-5). Anyway I was hasty in flashing and messed up, so just went back to stock ncg > root > full wipe > flash firmware, rom, kernel, firmware again just to be safe. The rom works fine except I seem to have lost my data connection. The 4G icon still shows, but it's not filled in - as you can see in the screenshots. To make it even more strange, when I check the network and sim card in apps like Advance Signal Status and Sim Manager, I still seem to be getting a connection to 4G but there is just no data flowing. The only error I can see is in phone info, when I run a ping test, I get PingIpAddr: Fail: IP addr not reachable which you can also see in the screenshots. It would appear this is my problem but I don't know where to go from here. I'm going to start flashing different versions of modems, starting with oc4 to see if that helps. Then I'll probably try different roms, but I've flashed other roms trying to fix this and even restored the backup to when it worked and it still didn't fix my problem. Did I wipe my IP address or something maybe? I am in CDMA/LTE mode, and the vzwinternet apn is selected.
For starters try to put the apn settings for your carrier and if not sure call them and ask them to email you the setting
I fixed it, went back to stock ncg instead of ni2 and that worked. Weird.

HELP I broke my LTE

First off I'm using an unlocked S5 on straight talk's LTE network, have been for about 9 months with no problems. I've talked to support twice and they reactivated networks and all that good stuff, and when none of that worked sent me a new sim, which I have just activated and it still didn't fix my problem - so I'm finally bringing my issue here.
Last week I decided to update from phoenix rom oc4 (I think it was oc4) to optimal rom og5 (15-5). Anyway I was hasty in flashing and messed up, so just went back to stock ncg > root > full wipe > flash firmware, rom, kernel, firmware again just to be safe. The rom works fine except I seem to have lost my data connection. The 4G icon still shows, but it's not filled in - as you can see in the screenshots. To make it even more strange, when I check the network and sim card in apps like Advance Signal Status and Sim Manager, I still seem to be getting a connection to 4G but there is just no data flowing. The only error I can see is in phone info, when I run a ping test, I get PingIpAddr: Fail: IP addr not reachable which you can also see in the screenshots. It would appear this is my problem but I don't know where to go from here. I'm going to start flashing different versions of modems, starting with oc4 to see if that helps. Then I'll probably try different roms, but I've flashed other roms trying to fix this and even restored the backup to when it worked and it still didn't fix my problem. Did I wipe my IP address or something maybe? I am in CDMA/LTE mode, and the vzwinternet apn is selected.

activate Sprint while on custom ROM?

So I have been using MetroPCS on my Moto G5 Plus since I got it. Well today I went and activated my device with the Sprint network... It wasn't working when I left the store, and I told the rep how it was modified (using RessurectionRemix 5.8.4 Final), that I would work on setting it up.
Well, so far no success in activating it... Have tried changing network mode to CDMA/LTE and messing around with dialer codes, still can't get anything besides "emergency calls only."
Anyone have experienced getting this phone activated with Sprint?
Note: they did tell me they didn't have the exact, or "recommended," SIM card for my device, and that it was a secondary option they used in the system(?).
laserswift said:
You need to get the Sim card part # that ends in 446c. I got mine at best buy for 10 bucks and it's currently working well with Sprint.
Click to expand...
Click to collapse
I am using that SIM, got it working when I reflashed stock. Did not work again when I restored RR, at least fully, as I was able to get data to work minus SMS/calls.
I'm on Sprint. No issues with any Roms.
You need to be on a stock build for the initial setup, because the custom roms remove all of the PRL stuff. Once it is setup once, flash whatever you want.
Karlinski said:
You need to be on a stock build for the initial setup, because the custom roms remove all of the PRL stuff. Once it is setup once, flash whatever you want.
Click to expand...
Click to collapse
It doesn't stick after I flash a custom ROM
That's really odd. I don't have that problem...
Make sure you have APNs on the custom rom. I saw a problem a while back that the custom rom didn't keep the APN for some reason, and I had to put it in manually. Different device, but same problem.
Karlinski said:
That's really odd. I don't have that problem...
Make sure you have APNs on the custom rom. I saw a problem a while back that the custom rom didn't keep the APN for some reason, and I had to put it in manually. Different device, but same problem.
Click to expand...
Click to collapse
Can you tell me what your APN info is? I have data and calling working now, but no LTE option (see screenshot)
I have mine set to global.
I had this same issue with my s6, and I ended up having to factory reset the phone, and redoing the PRL update, and the option finally came back.
Just to follow up, I was able to get full LTE and calls to work by flashing stock ROM, updating PRL, and by then it was provisioned on the Sprint network.
As it stands now, if I reinsert my MetroPCS sim card, it is provisioned for MetroPCS no problem, but I do have to reflash stock again each time I want to provision for Sprint.
So thats how I am going to run things for now, by making backups and getting it provisioned using stock before restoring.
this worked for me
sharpsan said:
Just to follow up, I was able to get full LTE and calls to work by flashing stock ROM, updating PRL, and by then it was provisioned on the Sprint network.
As it stands now, if I reinsert my MetroPCS sim card, it is provisioned for MetroPCS no problem, but I do have to reflash stock again each time I want to provision for Sprint.
So thats how I am going to run things for now, by making backups and getting it provisioned using stock before restoring.
Click to expand...
Click to collapse
theres an ap on the play store called apn backup and restore. install it on stock rom . b4 using it u need to go in system/apps and move the apk to system/priv/apps once moved changed permissions to r-w-r-r. after that a quick reboot and open app change setting to disable ics check and do a backup . once finished do the same thing on new rom and mine works flawlessly. im on boost which is also on sprint network. good luck hope this helps

i-9505G, Correct APN but no data

Hello folks,
Galaxy S4, Play Edition, currently rooted and AOSP 7.1.2 installed.
I rarely used data on this phone and never since I installed the ROM. Lately, I needed the data often and I noticed that I do not get the data on this ROM. I confirmed with the carrier about the APN settings (Airvoice Wireless, att MVNO). The carrier reset data from their end. I tried manual APN entry but none worked.
Searching on the web led to various ideas, like reset network settings, airplane mode on/off etc etc. Tried everything, no change in the status quo. I am at loss on what is the problem. I tried the SIM in my wife's phone (HTC One X, Kitkat) and it worked without any issue.
I could not figure out PDA, CSS but the baseband version is I9505GUEUDNL3, in case if it needs an update.
I checked the thread (https://forum.xda-developers.com/galaxy-s4/general/ref-galaxy-s4-i9505-modems-bootloaders-t3315987) over and over but didn't understand what/how this stuff is worked out.
I am really going nuts and I do not want to pony up for a new phone at this moment.
Any help is appreciated.
Flash back to a stock ROM and check for data connectivity. If everything works, it's a ROM issue rather than being a hardware issue.
The issue seems to be related to the ROM.
I restored to 5.0 (LRX21P.S012.141205) and the data works flawlessly.

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