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LTE is barely working on my phone.

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Katdraken
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Default LTE is barely working on my phone.

Problem: my phone is generally refusing to connect to LTE, even when signal strength is better than -100dBm. It almost always connects only to DC-HSPA+, even in places where LTE usually works fine. LTE signal strength is fine as well, but... no connection.

Events leading up to this state:
  1. Made a full Nandroid backup in TWRP.
  2. Performed a factory reset in TWRP.
  3. Flashed I317MVLALJ2 stock onto the phone.
  4. Performed a factory reset with the stock recovery.
  5. Booted the phone up.
  6. Used CF-Autoroot on it.
  7. Tried to (re-)unlock the SIM card, leaving out the second step.
  8. Installed SabreKat (modded NF1).
  9. Installed CM11 w/ AGNi PureCM kernel.
  10. Restored the Nandroid backup.

Could anyone help me find a solution to this?
 
outlaw2112
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Quote:
Originally Posted by Katdraken View Post
Problem: my phone is generally refusing to connect to LTE, even when signal strength is better than -100dBm. It almost always connects only to DC-HSPA+, even in places where LTE usually works fine. LTE signal strength is fine as well, but... no connection.

Events leading up to this state:
  1. Made a full Nandroid backup in TWRP.
  2. Performed a factory reset in TWRP.
  3. Flashed I317MVLALJ2 stock onto the phone.
  4. Performed a factory reset with the stock recovery.
  5. Booted the phone up.
  6. Used CF-Autoroot on it.
  7. Tried to (re-)unlock the SIM card, leaving out the second step.
  8. Installed SabreKat (modded NF1).
  9. Installed CM11 w/ AGNi PureCM kernel.
  10. Restored the Nandroid backup.

Could anyone help me find a solution to this?
I dont know if u have tried changeing apn but i used second apn and it fixed my signal probs just an idea hop it helps ( http://forum.xda-developers.com/show....php?t=2172110 )

Current ATT Note 2
note 1 I717 blackstar ( Backup )
infuse 4g I997 got washed
captivate cm7
backflip cm7 (just wont die)
 
killswitch451
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I am having the same issue I flashed the latest SOKP and got super High speeds, yet I had issues with getting a black screen during phone calls, the call goes through but I cant hang up fo I flash to AICP and get the worst speeds ever. there is a new Modem I317UCUCNE5 http://forum.xda-developers.com/gala...itkat-t2799739 try flashing that. I work in a basement and live practically on an island so I can only test when I am out and about
 
Katdraken
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I should say, I fixed this by reflashing 4.1.1 stock on.
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Tags
broken, connection, i317m, lte, unlock
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