For testing you can force the Bionic into 4G-only but you will no longer have voice service.
Go to
Phone |
Dialer
Enter
##program (##7764726)
Select
send
Enter
000000 (six zeros)
Select
Verify
Select
06 Test mode"
Select
Next at the bottom
twice
In
Network Mode select
LTE only
Select
Home
When you return to the home screen, it may cause your phone to reboot.
You can exit this mode by ...
Go to
Menu |
Settings |
Wireless & network settings |
Mobile networks |
Network mode
Select either value
I am in a 3G-Only area. This technique was verified by
Telstar_2112 (thank you).
The other options in the Hidden Menu can be very dangerous. Don't change any.
... Thom