some questions from a new owner.

[Guest juumax]

Hi , i just got the ascend 510 and for the cost it seems quite good . I just had a few questions though. I hope one of you can enlighten me.

Memory: phone always seems to be on low memory side at around 30-40 mb free.this seems to slow down the phone , i dont have much installed at the moment , should i use a memory manager?should i root and get a lighter rom.

Mic issue: i have read on some posts about the mic issue and it has happened to me on a few calls. Has this been resolved now ? is there a fix for it? I saw one fix for it which said something about turning off the dual mic. But i dont seem to have that setting.

Build : i am using build B185 is there a newer one? i am using an unlocked version in the UK.

Thanks in advance any advice most appreciated.