Support Hey guys I need ur support for my wildfire s ; Help please

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http://androidforums.com – Ok guys ; I recently bought a slightly used hTc Wildfire S and I dont know whether it is rooted or not ... though i can use in any carrier in my county . It has a hTc sense 2.1 with Android OS Gingerbread 2.3.3, which I want to update to 2.3.5, I tried to update from setting>about phone> Software Updates> check now, several times, but still unsuccessful with this message " your phone is uptodate. there are no updates available for your phone " my phone bluetooth device name (by default is HTC wildfire S A510e and my HBOOT information, I extracted from by phone by s (General)