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Re: volume keeps going down
Could be that the control ciruit board, or some of the button-switches, or there is a fault with the UPC, or there may be some cold solder connections in the control area. This would have to be investigated by a service tech who is qualified to work on your model of TV set. It is repairable, but if the set is out of warranty, the cost of service may be a little high in relation to the value of the set.
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Boot into recovery mode by Holding the Volume + button and hold down the Power button at the same time. As soon as the tablet’s screen turns on let go of the Power button but keep the Volume + button held down until you see a large Android in the center of the screen. At this point you will see a screen with boot options. Use the Volume – button to go down to Wipe Data Factory Reset and tap the Power button to select this option. On the next screen use the Volume – button again to go down to Yes and use the Power button to select. At this point it will be going through the wiping and resetting process. When it’s done you will see the first screen you came to when you first started the setup. Just tap the Power button to select Reboot System Now. If you are running android 5.0 or up, the tablet will likely as for your Google account details...good luck
Turn off tablet. Press and hold the power on button and the volume down button. when it comes on release the power button keep holding the volume down button, when it shows the restore screen let go of the volume down button. then use the volume up down button to choose what you want to do . Should fix it,
You can try this if you can get it to come up. Wipe and reformat the tablet.
Make sure tablet is fully charged.
Hold the volume up button and the power on button down at the same time.
You might have to press the power button repeatedly while holding the volume up button down.
A menu will come up. Selections of the menu are available by pressing the power button up or down. Select wipe and format.
It will go through the format process and then select reboot.
Hold the volume down button and power button at the same time. That will get you to the starmenu and the WiFi connection. Follow the screen instructions. If that doesn't work your only option is to return it or send it to Curtis for repairs. Don't buy another one. This is my second unit. Very unstable operating system. Mine keeps going off and I have to reboot frequently. Hope you are still under warranty.
Before starting, make sure that the tablet is powered off. Not just in sleep mode. Now press & hold both the UP and DOWN volume buttons at the same time.
You may find it easier to hold the tablet in the landscape position on a
table or on your lap while you hold down both buttons.
Next press and hold the power
button until the tablet buttons light up. It will take a minute to
happen, but when they do immediately let go of the power button ONLY.
Keep holding down both the UP and DOWN volume buttons. You only have a
second to do this other wise the tablet will continue boot up as normal
and you will have to start again from step one.
bit of holding down both volume keys the screen will show the Vizio
logo. Then the logo will change to a TRIANGLE with an exclamation mark.
Now you can let go of the volume buttons.
Tap the home button to pop up the boot recovery menu.
Follow the instructions to reset your tablet. Pressing the up/down
volume buttons allow you to scroll up and down the list. A quick press
on the power button will accept your selection.
Wait for the tablet to come up.
Try visit my blog if you want see video tutorial http://pcgadgetdeni.blogspot.com/2013/02/forgot-passwordpattern-unlock-of.html
You have to reset your whole phone. Hold the power button and the volume button down at the same time until Pantech pops up on the screen and when it does let go of the power button but keep holding the down volume button down. When the triangle pops up let go of the volume button and press the menu button. Use the volume button to scroll down to wipe data. Hit the home key.. scroll down again to yes and hit the home key. Hit the home key again on reboot system. That's it ! :)