Selecting/Disabling Specific Bands (850,900,etc.)
I currently have a Blackberry 9650 and 9000 and I use them both (long story) and I'm looking to buy an Android phone but I have certain requirements and while it doesn't appear I can find my dream phone, if certain features can be taken advantage of, then I can lean a certain way. I noticed that the Galaxy S 9000 (1st gen) had a weird setup where they disabled the 850mhz 3G band and that through the secret menu you can re-enable that 850mhz band because for some stupid reason it was disabled. Anyway looking at that menu I see that you can selectively enable and disable bands. So in my area on AT&T for what ever stupid reason, despite having better signal on the 850mhz band and even in the off peak hours (like 4am) just about any phone I'm using will hop around between 1900mhz and 850mhz 2G or 3G (depending on if I force 2G, 3G or LTE mode). The difference between 1900mhz and 850 is literally the difference between a call cutting in and out and having good signal, at least with a Galaxy S4.
I want to know if the original S is the only phone where certain bands (not just GSM, LTE, UMTS etc.) can be selected. My mom has a Galaxy S4 and I spent several hours playing around with the secret menus but I couldn't find a way to selectively enable/disable certain frequencies.
Is there a way on the S4, or even S3 or S2 to selectively enable/disable specific mhz not just choosing GSM, LTE, or UMTS? Or prehaps another android phone brand. Is there an app or do I have to get something like cyanogenmod to do these sorts of things on these phones?