Just had a chat with a Facebook friend, he was asking about turning off the 4G/LTE setting for the Samsung Galaxy Note 2. Though I didn't have a Note 2 on hand, I guessed that with the TouchWiz interface and all, it should be pretty similar to other Galaxy phones in the series.
So here's how to do it :
- Go to Settings, More ..., Mobile networks, Network mode.
- There will be 4 options : LTE/GSM/WCDMA(Auto mode) , GSM/WCDMA and so on.
- The 2nd option will leave the phone in 3G mode but disable 4G/LTE mode.
Hope that helps.