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Here I have Alcatel U5 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 phone's dialer. Let's activate the keypad and let's use the following secret code
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So let's input asterisk hash 2886 hash. As you can see Alcatel mobile phones just pops up
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So this is like the hardware test menu in the Alcatel smartphones
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Here you can read a couple of information, you can perform the automatic test or you
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can choose manual. So here you can navigate by tapping appropriate options
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For example you can see the LCD black and test the black light on your screen
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You can test the grey light. You may also test the keypad, main camera, main flash, charger, receiver
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Let me tap receiver. My receiver is working just fine. You can test the speaker
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You can also test the vibrator if you would like to. And other stuff such as the sim card, bluetooth, wifi, GPS
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You can even perform the hard reset operation by choosing factory reset if you would like to
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If you would like to go back and quit the Alcatel mobile test menu let's use the back
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key a couple of times. And now let me go next and let me show you another testing menu, another secret codes
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For example right now let me open the calendar info menu. Let's use the following code
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Asterix hash, asterix hash, 225, hash asterix, hash asterix. The calendar info just pops up
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Here you can read about the events from your contacts, from your Google account and other
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stuff as well. Let's go back. Let me now open the Google Play service mode
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So let's input asterix hash, asterix hash, 426, hash asterix, hash asterix
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This is the Google Play service. Here you can choose ping, connect, disconnect events and read all of this information
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Let's go back. Now let me show you how to open debug UI. So let's use asterix hash, asterix hash, 759, hash asterix, hash asterix
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And the debug UI just pops up. Here you can view client's IDs
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You can for example change your EM mode, see the current back off, next alarm and other
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stuff as well. And at the end let me show you how to check email number by using the secret code
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So let's use the asterix hash, 06 hash and the email number just pops up in front of
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you. Tap OK to close this window. And that's it. Everything went well
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