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Under Wallet you will find Market option below your SBD balance. Click on that, it will redirect you to the Steem exchange. There you can sell you SBD to cover it into Steem.

Then you will get Steem in to your Steem Balance. Then Power up it.

@printskill what will happen after power up i mean do power up will help of mine

Power up will increase your voting strength. More power to you means more value to your account and of your vote.

@printskill thankyou for all these details

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