Think I've got myself into a mess here.
I finally got round to rooting my phone last night to hopefully get rid of my "MAPServicesamsung has unfortunately stopped" problem that I and a few others have had since going from GB to ICS.
Downloaded insecure kernal CF-Root-SGS2_XW_ODD_KE8-v4.0-CWM4.tar and phone got suck on yellow triange during reboot so turned off and wouldn't turn on again, just the battery indicator showing as the USB was still plugged in. Saw others have had the same problem and the way to overcome it was to load CF-Root-SGS2_XW_XEN_LP7-v5.4-CWM5.tar and sure enough this worked (still had yellow triangle to start with) and then rooted with S2Root_1.5.1_Release (1).
Now my wi-fi will not connect. It recognises it but keeps scrolling between authenticating, Obtaining IP address and Saved, secured with WPA2 and sometimes Avoided poor internet connection (even though signal is showing as excellent). I've done allsorts since; deleted it and scanned back in, changed from DHCP to static and back, rebooted the router, taken the battery out, cleared cache but no joy,
I assume the best thing to do is factory data reset. I want to back it up first and titanium back up says there's an error and to verify the ROM is rooted and included BusyBox. Downloaded BusyBox okay via 3G but it will not install as it says I haven't a good internet connection (even though I've been using the internet for other things without any problem today).
Did I say I've got myself into a mess?!!!!!
Any help much appreciated.