how can i turn 4g back on with LTE onoff

[pico1]

I got that thunderbolt app after I upgraded to ICS to toggle 4g/3g. I went to CDMA only then tried going back to late/cdma/evo and now I can't get my 4g to turn on?

 

[FoxKat]

You need to set to "LTE/CDMA/EvDo/GSM/WCDMA"

 

[xtor]

You have to wait, or try it twice, and lte/cdma/evdo, at least that's what i use

point of origin

 

[pico1]

What is evdo and GSM? I won't get charged roaming?

 

[sniperf250]

Evdo- evolution data only

Gsm global service for mobile networks

Sent from my DROID RAZR in blue! using Droid Forums

 

[schleprock]

i was having this problem as well. i was able to fix it by going to: system settings->wireless & networks More... ->Mobile networks ensure that "data enabled" is checked and "data roaming" is also checked.

 

[bruben7886]

^^
Close:
Wireless and networks/ more/ mobile networks / network mode/

Select "lte/cdma"
Gets you back to 4g if it's available in your area.
I had the exact same problem this afternoon and used this to get my 4g back (needed speed with no Wi-Fi around)
Hope this helps