It'll be fine to system update. Aslong as it's an avatar one. Make sure your kernel is on 16537.

TTG_QuZia wrote I Have My Jtag And I Wanna Get It Online It Hasn't Been Band, But It Trying To Make Me Do A System Update But I'm Worried I'll Do It And Get Band Any Help ?

first of all do you have a paid authentication for e-XBLS?? if the answer is no then i would seriously suggest not going online and not taking that update at any point... if you need the avatar updates for dash version 16537 then google it and get the files onto a usb stick and upload them that way... if you HAVE NOT purchased stealth and you attempt to get that update then you run the risk of being banned which really isn`t an issue considering its a JTAG but theres the who agenda with having a bricked console for listening to a one hit wonder and following his dumba$$ advice... to get online you will need to contact EverydayNine or Devon_Bryant on AIM and buy stealth time from them a day will cost 20 dollars or 13quid if english, you send them your JTAGS CPUkey and they will authenticate and then link you to the online files, unrar them and transfer them to the root of your HDD... when you get these you need to be sure your console is running dashlaunch 3.08 or higher and you need to be on dash 16537.. now you have all the stuff go into dashlaunch and set the plugins as follows 1) xblstealth.xex 2)xbdm.xex and press RB and save the settings to your HDD by pressing X... quit dashlaunch and wait till it goes to dash then power down... now if your unbanned, all config`d and paid up when you boot back up it shut itself down then reboot again and it will pop up with "xbls fully bypassed" if all is correct...

to get online you need exbls

You update your JTAG's NAND in order to update the dashboard. NEVER update straight from Xbox LIVE. It WILL brick your JTAG.