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I have Lenovo A850 and let me show you how to accomplish hard disk operation on this
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device and how to bypass and remove pattern or a password protection from this phone
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So at the very beginning let's hold down power key for a few seconds, choose power off and
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tap OK to confirm it. Wait until your device will be completely switched off and afterwards you have to use
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the following combination of keys, power key and volume down. So let's hold down together these two keys for a few seconds, keep holding both keys
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and release them as soon as Lenovo logo pops up. Now all you have to do is wait a few seconds and as you can see the factory mode just pops up
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This whole menu is in Chinese but it's easy to find clear eMMC option right here
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So all you have to do right now is scroll down, you can do it by using volume down
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Let's highlight clear eMMC right here and let me press power key to confirm it
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Now the device is erasing all personal stuff and customized settings, the phone is formatting itself
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The device is also restarting and rebooting so the whole operation should take a while
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Be patient and wait until the whole operation will be completed. Excellent, as you can see the welcome panel just pops up and there is no button or a password
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protection so you can start easily activate your phone. Thank you for watching, please subscribe our channel and leave thumbs up under the video
