Anyway to disable Band 4 LTE?

The phone keeps switching over to Band 4 from Band 13. When it does this, the upload bandwidth slows to a crawl and makes the web fairly useless. Is there a way to force Band 13 or disable Band 4? I know you can on some LG and Samsung devices.
Does the programming menu allow that? I still haven't figured out how to access the program menu.

Anyway to ROOT new Z3v 5.0.2. NON-PREROOTED version?

I had my Z3v rooted on 4.4.4. but once I flashed 5.0.2. I realized I didn't do the pre rooted version. Anyway to Root the non pre rooted 5.0.2?

Thank in advance!

Anyway to stop firmware update before rooting?

I just purchased a new S6 today from Best Buy. I was lucky to get a OE2 version, saw it on the box labe before I bought it. I would like to root and install a ROM but I want to wait until my 14 day return period is over in case I'm not satisfied and decide to do something else. The prompt to update pops up constantly. It's very annoying and I'm concerned I may accidently tap the update button. I'm coming from a S4. On the S4 I was able to use Root Explorer to rename a couple of system files to stop the request for updates. Since I'm putting off rooting until after 14 days that method is not possible. I cannot uncheck to automatically upgrade because when I go to system update I only get the "update ready to install" message. I tried booting to recovery and wiping system cache but that had no effect. Any suggestions? Thanks

Is there anyway to get LTE as the data signal instead of 4g in USA?

Would love to know if it's possible?