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Here I have Waeco Highway Science and let me show you how to enter the factory mode
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on the following device. So at the very beginning let me start by using a power key, right here, choose power off
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and tap ok to confirm it, wait until your device will be completely switched off and
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afterwards you have to use the following combination of keys, the power key, the volume down and
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the volume up, so let's hold down together these 3 keys for a couple of seconds, keep
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holding 3 keys and release them as soon as following menu pops up, now let's press volume
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down in order to choose factory mode and the factory test mode just pops up, here
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you can navigate by using both volume keys and confirm options by pressing the menu key
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the left left right here, you can here choose the upgrade, the PCB test, essential item
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test, full test, item test, let me choose the item test for example and here you can
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check the version, press menu key, you have to choose pass or fail, let me select pass
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you can also check the keys, panel, color, let me tap color, let's tap pass, the LCD
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contrast, the memory card, SIM detection, vibrator, let me tap vibrator for example
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let me choose pass, the loopback, receiver, speaker, headset, main camera and a lot of
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more, if you would like to go back, let's use your back arrow, you can also see the
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test report, test signaling, choose GPS or if you would like to quit this mode, let's
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highlight reboot, the last option and let's press menu key to confirm it, and now the
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device is restarting and rebooting into a normal mode, you have to wait a couple of
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seconds, excellent, the phone is in normal mode, now you can use your device, thank you
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