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Here I have Oppo F9 Pro and let me show you how to use secret codes on the following device
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So at the very beginning let's start by using the home screen. Let's use the phone's dialer and here let's start with the first secret code
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So let me open here the UR anti-card, let's use asterisk pound, 1, 2, 3, 4, 5 pound and
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as you can see the UR anti-card pops up, here we've got the phone activation service info
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Let's go back and here you can also check the ColorOS software, let's just use asterisk
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pound, 1, 2, 3, 4 pound and the ColorOS software just pops up, tap OK to confirm it
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Now let's open the first engineer mode, so let's use here asterisk pound, asterisk pound
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3, 6, 4, 6, 6, 3, 3, pound, asterisk, pound, asterisk and as you can see the following
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engineer mode just pops up, here you can see the telephony test, you can see connectivity
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for example here you've got access to Bluetooth, FM receiver, Wi-Fi, you can see here the hardware
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testing such as camera, audio, sensors, you may also test the location, log and debugging
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and others. Alright, let's go back, now let me open the second engineer mode, also called test mode
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let's use here the asterisk pound, 8, 0, 8 pound, as you can see the following mode pops
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up, here you can see the assembly test projects, you can see device debugging, for example
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vibration test, you can see the camera, media debugging, the communication debugging and others
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Let's go back, now it's time to open the Android testing menu, so you have to input the asterisk
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pound, asterisk pound, 4, 6, 3, 6, pound, asterisk, pound, asterisk, as you can see
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the following testing menu just pops up, here you can open the phone information and you
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can read them, IMEI number, phone number, signal strength, you can also here use the
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following settings as well. Let's go back, you can tap here user statistics to have access to the list of all apps from
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the device and you can read the counter and the usage time
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Use back key again, now it's time to open the Wi-Fi information, here you can select
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Wi-Fi API, when you can disable network, disconnect network, enable network or get connection info
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You can also open the Wi-Fi config and see configured networks, you can select Wi-Fi
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status and also read the statistics about your Wi-Fi. Let's go back again and now it's time to enter here the calendar info, so let's use
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asterisk pound, asterisk pound, 2, 2, 5, pound, asterisk, pound, asterisk and the calendar
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info just pops up. Alright let's go back and it's time to open the Google Play service, so let's use asterisk
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pound, asterisk pound, 4, 2, 6, pound, asterisk, pound, asterisk and the Google Play service
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just pops up, so here you can use ping, connect, disconnect or event
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Let's go back and it's time to open the IMEI mode, so let's use asterisk pound, 0, 6, pound
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and IMEI info just pops up. So that's it, everything went well, thank you for watching, please subscribe our channel
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