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I Install U - Disco App in Xperia P, I opened this APP the following msg is appear
Device does not have the root access. This APP will not function...
For what and How to Root my Xperia P? . Pls Reply........
think about a PC lets say that root access grant you administrator access not only you but the app, so you should be careful, check the app permissions, if it's a LED light show app does it need to have access to your phonecalls, contacts, internet access, etc?
is Sony spying on users in this forum?
http://talk.sonymobile.com/thread/60197
Don't forget to mark the Correct Answers & Helpful Answers
unrelated topic, if you have some time please check this thread
Like uliwooly said, you get administrator privileges to edit the contents even further on your device. That can be very dangerous tho if you grant permissions to a malicious app.
You can try this if you want to root your device.
http://forum.xda-developers.com/showthread.php?t=1886460
P.S.: I'm not responsible for damage caused on your Phone. Proceed with caution.