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  1. Apr 11, 2021 · I'm having a Chinese tablet Allwinner Quad Core A33. The tablet has only Power and Home buttons. No Volume buttons, no reset hole. When it boots, it freezes on the Company logo. The ADB devices command sees no devices.

  2. Apr 25, 2022 · By far the easiest way to restart an Android device without a power button is the Quick Settings panel. This menu has the toggles for Wi-Fi, Bluetooth, Airplane Mode, and many other customizable tiles. Simply swipe down once or twice---depending on your device---and tap the power icon. Select "Restart" from the menu.

  3. Mar 15, 2018 · Ensure that your Blackberry KEYone is turned off by pressing the power button. Step 2. Press and hold the Volume Up button + Power button. Step 3. When you see the Blackberry logo, release the buttons and press the Power button again. Step 4. From the Android Recovery Mode menu select “ wipe data / factory reset “.

  4. The second option is to reset your password from a computer. Visit the BlackBerry ID reset page linked in the Resources section, click "Reset your password" and follow the on-screen instructions. In both cases, an email will be sent either to the email account associated with your BlackBerry ID or the device itself.

  5. At the very beginning hold down the Power key in order to switch off the device. Afterwards press and hold the Volume Up + Volume Down + Power button for a short while. Wait to complete the whole operation. Great job! The factory reset has just been performed. If you want more tips and articles related with BLACKBERRY PlayBook subscribe to our ...

  6. Oct 6, 2022 · You can perform hard reset when your applications/device are not working properly. ALT+DELETE+RIGHT SHIFT. But this time you will have to use it twice. The screen will go blank and the device will boot. Immediately press ALT+DELETE+RIGHT SHIFT, you should get a blank screen followed by an hourglass.

  7. Apr 30, 2024 · Turn off your phone. Press the power and volume down buttons at the same time until the Recovery Mode screen appears. Press the volume down button until Recovery Mode is highlighted. Press the ...