Turning off 4G
A very helpful Verizon tech support crew gave me this method for turning off 4G
For folks that are reporting poor battery life on the Thunderbolt who DON'T live in a 4G area, they might be interested in turning off the 4G antenna. If the 4G antenna is on while the customer is exclusively in 3G coverage, the battery wears down as it constantly searches for the 4G network. Here's how to do it:
From the dialer, dial * # * # 4 6 3 6 # * # * to enter "Testing Mode"
Select "Phone Information"
Scroll down to "Preferred Network Type"
Select "CDMA auto (PRL)"
Note: This is not in our Troubleshooting Guides or Knowledge Base. Customers should be advised that this method is not Verizon Wireless advised - that some customers have reported better battery performance after this procedure.
To re-enable 4G, the customer simply repeats the steps above, but selects "CDMA + LTE/EvDo auto" as the Network Type.
- 04-01-2011, 08:15 AM #2
- 04-01-2011, 08:55 AM #4
It's ok, I was trying to find the discussion on it to link you to but no luck... I think one is called "poor man's 4G switch" or something and theres one or two others.
EDIT: Found one of them right HERE. The app is called Phone Info and I saw another app but I can't remember the exact name. I think it is actually called $G toggle or something to that affect.
- 04-01-2011, 08:59 AM #5
- 04-01-2011, 10:41 AM #7
- 04-01-2011, 02:06 PM #8
-CDMA only = 3G data only. No auto PRL. Not a good idea since there is no way I know of to specifically trigger a PRL update on the ThunderBolt, aside from calling Customer Support anyway. *228 does not work on the ThunderBolt
-EvDo only = 3G data only. No voice calls can be made/received
-CDMA + LTE/EvDo auto = Normal 1X/3G/4G/LTE operation
-LTE Mode = 4G/LTE only with no fall-back to 3G/1X.
More info on my personal situation...
I find the "Phone Info" app in the Market very convenient. I use this a lot because I am running a 3G Network Extender which puts out a strong 3G signal within my house, but I have a very weak 4G signal (not useful) outside my upstairs windows which contributes to loss of all data when the phone is trying to decide to use the very weak 4G signal or the very strong 3G signal. So, in my case, by setting it at 3G at home I have good signal and data all the time. I change it to CDMA+LTE (normal) when I go out because I live and travel in a 4G area every day. That works well too.
- 04-01-2011, 02:20 PM #9
- 04-01-2011, 02:23 PM #10
- 04-01-2011, 02:29 PM #11
- 04-01-2011, 02:40 PM #12
- 04-01-2011, 02:54 PM #13
- 04-01-2011, 02:59 PM #14