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Here I have Acer Liquid Z4 and let me show you how to accomplish hardest operation of
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this device and how to bypass and remove pattern or a password protection from the following phone
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At the very beginning hold down power key for a few seconds, keep holding power button
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and tap power off. Afterwards you have to confirm the whole operation by clicking OK and wait until your device
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is completely switched off. Afterwards you have to use the following combination of keys, power key and volume down
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Let's hold down together these two keys for a few seconds, release both keys as soon as
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Acer logo appears in front of you and the factory mode just pops up
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You can navigate here by using volume down key, so scroll down to clear eMMC option and
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press power button to choose it. Now the device is formatting data and the phone is erasing all personal stuff and customized settings
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The phone is rebooting and resetting, the whole operation should take a while so be
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As you can see the welcome panel just pops up and there is no pattern or a password protection
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so you can start easily activate and use your phone. Thank you for watching, please subscribe our channel and leave thumbs up under the video