yr main jab apne samsung s duos 2 se firmware update krta hun to install complet hone k baad reboot ka kha jata hai reboot krta hun to cell phone restart hone k baad aata hai failed update firmware...update computer software (kies) or visit samsung service center..inka koi hall mere pass pc nahn mobile se kaise update kron???? plzzzzzzzzzz helppp
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