jesus...so many new faces in here. thats a good thing i guess lol
i tried BOTH flashing over 11.19 and doing a full wipe, and i cant say they were too different in results. i can change my notification sounds and my LED works (it worked for me both ways). i havent gotten a reboot at ALL...ever.
it might be a pain in the ass but, if you wanted to try it, you could try flashing over 11.19 and see if your notification sounds will stick/LED works.
Im using the Cyan colored LED an it has worked since the first minute i installed.
as for the Wireless Hotspot issue, my hotspot has never worked. i use wireless tether and it works pretty good so i dont see any reason to stop using it