[Q] LTE problems, PRL or APNs ?
I am on Ting which is a reseller of Sprint.
I moved back to Honolulu from SF and now I only have 3G support everywhere I go on Oahu. I'm 90% sure Honolulu should have LTE support.
When in I was in SF and installed CM 10.1 I had to use a custom apns-conf.xml file to get LTE support, because without it all I could get was 3G. However, with the same apns-conf.xml I can only get 3G now in Honolulu. That is why I am fairly sure my problem is with the apns.
My game plan:
Use Odin to flash the Firmware back to MDC then use TWRP to flash back on the original MDC ROM backup I made. Update the PRL. Let the phone sit and then ask to install system updates. Let it do it's thing. Reboot, hope that it will update me all the way up to MF9 or MDL. Hope the I get LTE... if not call Ting. Even if I don't have LTE grab the new apns-conf.xml. Then flash all the way back to MDC. Root the phone and install TWRP. Flash the firmware back up to MF9 and reinstall TriForce ROM. Then install my Titanium Backup of my Apps+data. Install the new apns-conf.xml. Hope I have LTE.
Sooo, before I go spending all day doing that do you think this is worth my time doing? Do you think this will work? Could this problem be related to my APNs or PRL?
EDIT: Okay, TriForce ROM seems to allow me to update PRL, Profile, Samsung Software, Firmware, and UICC Unlock. I updated the PRL and the Profile but I'm still only getting 3G.. at home at least. I'm just happy it didn't seem to get any worse
The PRL number did not change however.
EDIT 2: Yes, I am now fairly sure it is an APN problem. However, I found some other posts about this from other Ting users. I'm going to try just messing with the APNs first.
EDIT 3: Hum, so I tried using the APN Backup and Restore app. (It seems this is how I made my original apns-conf.xml backup because the format and naming is the same.) It seems that after I did the Update PRL and Update Profile my phone did grab the Ting APNs just fine, because the backup I made of it looks darn close to the backup I have from the original ROM. Strange though, the apns-conf.xml that is in /system/etc has not changed; it seems that file is like just the default APNs and not the like "Active" apns that the phone is really using. I'll have to look into that. This is such a pain because I am not sure where I should with out a doubt be getting LTE to go and test it at.... I'm not flying all the way back to CA just to test LTE
EDIT 4: Hum, so when I use the APN Backup & Restore app to restore the apns backup I made in CA on the original ROM I do get 3G at my house but I only have 2/6 bars. Then when I do the "Update PRL" it says it updates, then it turns off/on my mobile network. After that I am showing 5/6 bars. I'm now thinking that that PRL stuff should be solving my problem. I guess I just don't have LTE at my house. I'll have to go riding all around town tomarrow and try to get LTE somewhere. Maybe a big open space in the down town aria, or Waikiki.