If you’re one of those people that wishes your LED notification light was that bit brighter to notice missed calls or unread SMS/emails, then you may want to check out a new mod. It is directed to owners of the 2011 range of Sony Xperia handsets, running stock firmware.
Three different packages are available to download – Standard, High and Ultra. The mod can be installed via recovery and the image below shows what difference it can make to your LED notification light. Apparently, the author of the mod says that there is no risk to the LED. If you want to find out more click the source link below.