Blackberry 10.3 os kaisa update karna?

Hi friends...muje batao 10.3 update kaise karna hai10.2 se plZz

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Bhai autoloader download kr lo than ise install kar lo pc se connect kr k

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Link ki jarurat nai hai kya?
Aur autoloader kahase download karna padga?

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Uhhh - what?

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