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Here I have my phone Luna 2 and let me show you how to enter the factory test mode on
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the following device. So at the very beginning let me start by holding a power key, choose power off and tap OK to
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confirm it. Let's wait until your device will be completely switched off
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And afterwards let's 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 couple of seconds, keep holding both keys
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and release them as soon as my phone logo pops up on the screen
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As you can see the factory mode just pops up, here you can navigate by using both volume keys
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So, here you can accomplish a auto test, item test, let's choose item test, as you can see
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here you can test for example memory card, sim card, vibrator, let me test vibrator
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let's choose pass or fail. You may also test the receiver and other stuff such as headsets, sensors, main camera, sub
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camera, FM radio, Bluetooth and other stuff. Let's go back by using volume up
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Here you can navigate by using volume down, you can see the test report, you can choose
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clear eMMC, so this is the hard reset operation, let's just be careful with that
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You may choose version and check the version of the device, so let me do it, this is my
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version, let's press volume up to go back. You may also choose and check the board version, reboot in Chinese factory or you can quit
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this mode by using power off or reboot, let me choose reboot, press power key to confirm
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it and now the device is booting into a normal mode, let's wait a couple of seconds
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Excellent, as you can see the device is in normal mode, so now you can use your device
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