Siemens SX-56 Upgrade

[rxmann]

Hi all,
I'm a newbie as you will probably be able to tell shortly from my question below. I recently purchased and upgraded my Siemens SX-56 from the xdadevelopers special edition rom to a wm2003 I cooked at lumpistefan's rom kitchen. The upgrade was smooth as a baby's butt. Now, I have read about radio stack upgrades in this forum but I have no idea what RSU is. Do I need to do a RSU? If so, I would like to know how or be pointed in the right direction. I really read the forums and search for answers so please do not refer me to the search engine. The current device info is now:

Rom Version: 4.01.16 ENG
Rom Date: 2/4/04
Radio Version: A.20.10
Protocol Version: 324e4

Thanks in advance.

[Rudegar]

if your gsm works DONT mess with the rsu radiostack
it's the embedded software controlling the gsm part of the xda
and if it crash or make ones xda turn into the EU gsm system or US gsm depending on where one is located then one is in for a world of trouble

[rxmann]

Thanks, my phone works fine so I will let sleeping dogs lie. One question...if the phone works, does that mean my gsm is working?