No LTE, APN keeps changing from my carrier to default - Android Q&A, Help & Troubleshooting

Hi,
Galaxy S5 G900p, Sprint using Tello MVNO.
I finally upgraded from LineageOS 14 to 16. I originally had problems with LTE on version 14 but after reinstalling stock & updating the modem I was able to get LTE. I've tried that multiple times on version 16 to no avail. I flashed the bootloader/modem hosted by haggertk, but that didn't help. It may be the APN, but I cannot get the Tello APN (which is included in the list of available APN's) to stick. Every time I change the APN, it switches back to "Sprint LTE Internet" after a few seconds.
Thanks, Mike

After 3 solid days of trying to figure this out, I give up. I'm done with custom roms forever, going back to stock. I know devs work for free & I appreciate it. I never had a problem with CM & nothing but problems with Lineage.

Related

Thread for using verizon galaxy s4 Sch-i545 on T-Mobile and/or At&t LTE etc.

Has anyone else spent a lot of time fiddling with getting the Verizon up and running on at&t or T-Mobile in the states? Has anyone else gotten LTE working through the hidden menus while maintaining the ability to set APNs? (I got the LTE allegedly turned on with GSM but was then unable to change or use APN). I have also had some issues getting the stock messaging app to correctly use the proper MMSC for MMS -- currently workaround using Go SMS Pro and its manual settings. Another issue I have is incoming caller ID with my at&t Sim comes in the format +7075551212 which results in an invalid callback.
Has anybody successfully resolved these issues? I'm on rooted stock ME7 and would assume this is a safe assumption for this thread.
With an unlocked bootloader I would think tmo WiFi calling would be possible by flashing or porting a tmo ROM. Does anybody have a WiFi calling workaround?
Sent from my Nexus 7 using XDA Premium HD app
I have been using my i545 with a T-Mobile sim in the Seattle area for 2 weeks now. I was using the hyperdrive 9.1 ROM and a couple days ago switched to the Eclypse ROM. Both required adding the APN and neither giving LTE. There is another thread where a gentleman is attempting to shoehorn in a different radio but so far has only succeeded in bricking his phone, but I am holding out hope.
I have noticed that with hyperdrive the icons showed 3g 4g and HSPCA+ but on eclipse I only get the 3g icon for hspca+ and no icon for 4g or 3g on eclipse, which doesn't really bother me much but something I have noticed.
I have had zero mms sms issues i keep hearing about. I use the 4.2 AOSP messaging apk. I should note that my wife has a note 2 from verizon also running a tmobile sim and she had issues until i added the mms proxy info in the apn. Now she can send fine also. (i also had to delete the setup.apk to get rid of the sim notification on her pgone but not mine.)
One thing I am having an issue with is when I cycle the phone on and off. When it turns back on I get a notification that all calls are being forwarded to a 1800 number but when I click the notification it thinks for a bit then disables all 3 settings and the phone works fine.
I hope someone smarter than myself can figure this out. Our radios are supposedly able to pick up and frequency, so in theory it is possible. I tried to flash a 9500 ROM in hopes the radio settings would work, but was rewarded with a bricked phone and joy of an oden back up.

[Q] Verizon S4 on Metro PCS internet troubleshooting, help

Hello from a noob. I have done the saferoot, text edited the sales dat to AWS and changed the other file (forget the name) from OFF to ON. Basically I switched the IMEI on my Metro account to a 545. I kept the same SIM. The store says there demo SIM does not pick up the internet either. The internet worked for 2 minutes and now there is no logo (4g lte, H+ etc) and no connection to the internet at all. I have tried going into the bands etc. but I think I'm missing something (I guess obviously). I have done "everything". Updated the APN settings etc. etc. It is stock rom except the root and the minor text edited changes. It is on 4.3 android. Can anyone out there please tell me how to turn off the stupid VZN LTE band option (I think that is my problem) however when I put in the *#276... command it doesn't pull up the menu that lets you access the band option like I've seen on Youtube. It gives me a different menu with UMTS at the top. I still haven't found the turn off the VZN LTE option. Any help at all would be appreciated. The dialing and text messaging work so it's a clean phone but for some reason the phone is blocking my damn internet. Thanks for the help.
When you installed the MetroPCS SIM, did you configure the APN to use their network?
k1mu said:
When you installed the MetroPCS SIM, did you configure the APN to use their network?
Click to expand...
Click to collapse
Yes sir. I have done it all and nothing has helped. My only thought is finding that switch for the Verizon band or something else in the programming but I can't get to that damn menu. And the *#276.. number is not working on the phone anymore either.
So for those interested that may have Metro and are having the same problem I finally just updated the phone with the stock 4.4 firmware (clean wipe and all that) with Odin and it now works and the LTE no longer shuts off. After hours and hours of agony I finally did it. I tried rooting and everything on 4.3 and I don't care that I lost root - I'm just glad it works now. I do appreciate for what it's worth all the information on here and best wishes to you guys for all the future modding, unlocking the bootloader and all of that. See you around.

Bluegrass Cellular Warning

Really love the Lollipop rom, but since I am on Bluegrass Celluler, when the rom is installed, the data connection doesn't work. No phone or sms or mms is available. Bluegrass uses their own roms and special data connection settings to work with Verizon towers. If any one has overcome this, I would like to know. Have googled to no end and never found an answer to get phone and sms working with custom roms with Bluegrass Cellular as the carrier. Thanks guys......
bluehrass
I feel your pain ......I too am with bluegrass and I tried several Roms on my moto x 2014. I had no service or internet either. I went back with my backup the first few times no problem then I had trouble with recovery, getting phone to see the files etc....anyway after a few days I finally got back to my original but now my cell signal is weak and data is horrible...no 4g ever and seldom even 3g....maybe I picked up the wrong baseband or modem along the way??? If anyone has any advice or a bluegrass baseband I could try it would be much appreciated ....thanks in advance.....
I have an S4 mini and it updated using Samsung Kies. After that no data connection. Bluegrass re-flashed it for me. It seems this is something they do on a regular basis. You might try that.
I have an S4 Mini and it updated using Samsung Kies and then no data connection. Bluegrass re-flashed it for me. They seem to do that on a regular basis. You might try that.
Understand
I have an S4 Mini and update it with Samsung Kies and then no data connection. Bluegrass re-flashed it for me. You might try that. Seems like they do that on a regular basis.
You Can Correct The Issue With Advanced Signal Status from the app store.
Possibly try..
TheGhost1951 said:
Really love the Lollipop rom, but since I am on Bluegrass Celluler, when the rom is installed, the data connection doesn't work. No phone or sms or mms is available. Bluegrass uses their own roms and special data connection settings to work with Verizon towers. If any one has overcome this, I would like to know. Have googled to no end and never found an answer to get phone and sms working with custom roms with Bluegrass Cellular as the carrier. Thanks guys......
Click to expand...
Click to collapse
CM12.1 D2VZW from download.cyanogenmod.org worked for me on PagePlus. I don't recall if BlueGrass is a provider or reseller, hear ccommercial often. At worst you will have to edit APN and or ##DATA setting. I would recommend downloading Partition Backup from Play Store by wanam. At minimum open menu and choose Backup first blocks. That makes a unbrick image for real emergencies. I would also backup your efs, modem, modemst1 and modemst2. The first time I installed CM12.1 I lost my network/serials and sound. I had the best luck with 5-17-2015 nightly, which kept my sound. Worst case you can do like others suggested and take it in store for restore. Maybe with some talking you can obtain the actual restore file.
Note : Check the ##MSL settings on bg rom and note the settings for adding into the custom rom of your choosing. Code is typically 000000,but maybe different. This is a subset of service program only available on TouchWiz/Stock roms
Hey, got the phone and sms working using Advanced Signal Status from Google Play. Thanks for your reply. The major issue I am having now is no sound at all and no mic with any Serrano Lexx Lollipop rim. I have an S4 Mini SCH-I435L.

Straight Talk APN Settings?

Hi all. I just got a Verizon LG G3 and am trying to use it with straight talk. I put in my sim card and I'm able to make calls and receive texts but the data isn't working. None of the APN settings I've tried work. I've been using the same sim card on my Galaxy Note 3 and everything worked fine on that. I rooted and installed Cyanogenmod 13 on it but it doesn't work on that or on stock. Does anyone know what i could do to get my phone working on straight talk? Thanks for any help you can offer.
Never mind I got it working. Ended up chatting with straight talk customer support and they were able to get it to work.
I am having the same issue right now. What did straight talk do to fix it?
So, after searching these forums the APN has changed several times throughout the course of the year. The latest dated change has the APN as TRACFONE.VZWENTP and this is the one that currently works as of the date of this post.

AOSP/Lineage based ROMS no APN settings on Sprint Devices

Noticed this originally a month ago. On LineageOS and any AOSP based rom I no longer have any access to APN settings (they do show up if I remove my SIM but settings don't seem to stick on reboot). Is there any fix for this? Using APN editors don't seem to help either since they just say "APN settings are not available for this device". Calling and texting seem to work on the first boot after a clean install but after a reboot sms stops working until I make a phone call (doesn't stick on reboot). Still no way to get and maintain LTE also. (Stock LS998 works fine as expected)
These used to work for me a couple months ago but now they don't show up at all; even tried using older versions of Lineage OS and they are gone.
Quick Edit: Managed to see at least two other sprint users on the forums who have the same issue

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