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Here I have HTC Ultra 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 open the HTC function test menu
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Let's use the fonts dialer right here and let's input the following secret code
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As you can see the HTC function test just pops up
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Here you can enable the following mode by using the accept and you can test some of
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the hardware on your device. So you can perform the audio test, bluetooth test, charger test and a lot of more
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For example the LED test or vibrator test. Let me just test one of the following features for example the vibrator
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So let's select it and let's tap run. Choose start. As you can see the device is testing the vibrator feature
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Let me tap yes because it works normally. Then let's go back
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Let me choose stop and let's go back. Tap yes. As you can see you can also choose select all and perform all of these tests
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You can choose more and for example use the factory data reset option
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You can enter the save mode, you can choose the device check, read the device information
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and other stuff. Let's go back and let me quit the HTC function test by using the back arrow on my device
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And right now let me enter the testing menu of Android. So let's use the following secret code
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Star hash, star hash, 4636, hash star, hash star
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As you can see the testing menu just pops up. Here you can choose the phone information and you can read all the specifications about
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your device. For example the email number, the current network, the signal strength location
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You can run a ping test, turn off the radio or choose more key in order to select radio
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band, view sim address book, view fixed dialing numbers or for example enable data connection
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Let's go back and right now let me open the usage statistics
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So the usage statistics it's simply the list of all applications and you can read here
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the last time used or usage time. Let's go back and choose Wi-Fi information
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Here you've got Wi-Fi API. And you can disable network, disconnect network, enable network, get configured networks or
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get connection info. Let's go back again and choose Wi-Fi config. If you have some configured networks here you should see the full list of this specification
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of that networks. Let's go back, choose Wi-Fi status and if you have some Wi-Fi connected to your device
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you can read the statistics about them. You can refresh or start or run a ping test
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Let's go back. Let me quit the testing menu. And right now let me open the Google Play services mode
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So let's use star hash, star hash, 426, hash star, hash star
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As you can see Google Play services just pops up. Here you can select ping, connect, disconnect or events
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So let's go back. You can also open the debug UI menu
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So let's use star hash, star hash, 759, hash star, hash star
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And debug UI just pops up. Here you can view clients IDs, enable OEM mode or for example choose pings or events
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Let's go back. At the end let me show you how to check the email number by using a secret code
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So let's use star hash, 06, hash and the email number just pops up
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Let's tap OK to close this. Let me go back again to close the phone's dialer and that's it
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Here you should see some secret codes that can be helpful to use some tricks on your device
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