Originally Posted by nviz22
I just rooted my Note 3 and am I trying to access the hidden menu to activate band 4 LTE for AT&T. Each time I use a file editor, it says I have no permissions to save the file. I even used Super User being flashed, but that caused problems and my phone unrooted itself (strange, idk why.) How can I enable the hidden menu without permissions? I really need LTE on AT&T because the HSPA and HSPA+ speeds are atrocious. Any help will be appreciated.
I would recommend that you use root browser. That way you can edit the value, using the built in text editor. I used this my app, to edit the service menu value to ON then save it. After saving I would reboot your phone to make sure the changes were saved in the build prop. After your phone reboots, type this in the dialer: *#060# and you should recieve an MEID number that should look something like this: 9849098408940/00
Then you can access your hidden menu by typing in : *#27663368378# from there you can turn enable band 4 and LTE-AWS if it's available in your area. Good luck and happy testing
If you have further questions, please have a look at this thread: