No root, but you'll need your MSL

 

Is a security code used to protect settings on the phone. It's not applicable to all dialer codes, but anything involving editing will need it. Just call Boost and say an update is asking for it and they'll give it to you.

What are you trying to do?

 

Is this things like *#*#4636#*#*, that allows you access some of the engineering stuff and change things? The phones I've had recently(Not LG) didn't need root for doing *#*#4636#*#*. If you do this, be very careful if you change something, because you might find you'll end up with no service or something. So if the phone is working, look but don't touch, unless you know what you're doing.

 

Ah, cool, glad you want to learn. In short, dialer codes give access to system level settings and configurations that you wouldn't normally have access to. For example, I just went and removed all the data proxy servers on my phone (helps with some potential streaming media issues, possibly defeats throttling).

If you look through the thread you mentioned, it gives a brief mention of what each menu is for. You can access them and look around without your MSL, but to make any changes you need it. You also have to know exactly what you are doing because messing around in here can break your service, so always backup the information!

 

A proxy server, in general, is a server that a network can route traffic through in order to monitor, or control what can be accessed, and how. For example, your employer might use a proxy server to keep you from accessing porn at work. Phone companies typically use them to limit bandwidth available to each phone at a given time, which can cause some issues with streaming media.

Throttling is when you exceed your data allowance for the month and they limit you to an unreasonably slow speed. Whether or not removing the proxy servers from the phone settings gets around this is debatable. I just switched my plan, so I might actually hit the data cap next month, so we'll see.

 

Well, as I said, I don't know if removing the proxies will bypass the throttling, but it won't hurt anything either.