Nokia 5800 getting hot after firmware update!!!

[Bernee]

3 days ago, I have updated the phone software  of my Nokia 5800 from v30..... to v50..... It was successful update. However, after about 4 hours, I noticed that my Nokia 5800 is warm or rather its battery is hot and discharging fast. And I have noticed this "phenomenon" this past 3 days that I have to charge my Nokia 5800 repeatedly (I am worried that its battery maybe destroyed prematurely because of this). Really I am very surprised with this development. Can anybody please help and/or explain why this is happening to my cell phone? Is there any solution? Can I revert back to my old phone software v30....? And if I can revert back, what is the procedure? Please, please help. Thank you.

[glutnix_neo]

check mo kung nakaon ang bluetooth or kung gaano kadalas nagscan ng wifi, check mo na rin kung anu ano yung mga programs na nakaopen, may epekto to sa power consumptions mo, baka dati eh iba ang settings mo.