Update iPhone7 to iOS 14.4

Yesterday i've updated iPhone7 to iOS 14.4, now the phone is not able to achieve LTE nor even 3g, it just keeps saying EDGE, please i need a patch or a signed iOS13 to downgrade to my previous iOS version.
Thank you
Answered by TinyUser in 661346022
I just wanted to say that I finally and magically solved the problem following several steps read in the other question.
  1. Deleted vpns

  2. uninstalled vpn apps

  3. reset network settings

  4. introduce APNs

  5. reset phone

  6. the next day I finally got LTE

  7. Is still working til now perfectly

As you will read, you are not the only one…

https://developer.apple.com/forums/thread/657108

I would recommend to go to an Apple Store if you can and find it open.
Accepted Answer
I just wanted to say that I finally and magically solved the problem following several steps read in the other question.
  1. Deleted vpns

  2. uninstalled vpn apps

  3. reset network settings

  4. introduce APNs

  5. reset phone

  6. the next day I finally got LTE

  7. Is still working til now perfectly

Update iPhone7 to iOS 14.4
 
 
Q