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Here I have TP-Link Nefos C5 and let me show you how to enter test mode on the following phone
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At the very beginning hold down power key for a few seconds
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Then from the following menu let's choose power off and wait until your phone is completely
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switched off. Afterwards you have to use the following combination of keys
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Power key and volume down. You have to hold down together these two keys for a few seconds so let me do it
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Keep holding both of them. And release held keys as soon as TP-Link appears in front of you
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As you may notice factory kit test mode just pops up and here you can choose full test
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PCB A test, item test or KB test. Let me choose for example item test and here you have full list of available tests that
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you can perform on your device. Let's say that you want to for example check your black light so let's choose black light
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and as you can see the phone is testing your light. You can choose pass or fail
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Let me choose pass. Then you can for example check main speaker and you can choose fail or pass
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It depends on you. If you would like to quit this mode simply use your power key and choose reboot
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Now the device is resetting into a normal mode. You have to wait a few seconds. Excellent
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Now you can use your phone. Thank you for watching. Please subscribe our channel and leave thumbs up under the video
