I have an acer iconia one 7,but when you touch the screen it does nothing.It is fully chged.I bought it in jan 2017

For hard reset
Follow these steps
1- First turn off your Acer Iconia One 7 B1-730 completely. If you can not unlock the screen, press and hold the power button for about 20 seconds and the phone will turn off.
2- Keep holding on volume down and power keys together for a few seconds. In some devices according to the Android version the combination can be the power key and the volume key up.
3- When the Acer logo is displayed, release the buttons.
4- Move through the menu with the volume up and volume down keys until you reach the "Recovery Mode" option and press the power button to access.

Amazon.com: Acer Iconia Tab W3-810 8.1" Touch Screen ...

www.amazon.com > ... > Chargers & Adapters
Amazon.com, Inc.Amazon.com: Acer Iconia Tab W3-810 8.1" Touch Screen Digitizer Panel Repair Partreplace: Computers & Accessories.

The program of your unit is wiped out. reprogramming is the solution.

So it only says android and never loads to the point you see the screens you are used to?

Sounds like a failed update or something. Look up and perform a factory reset. It's usually a button holding down combo but I don't know what yours would be.

Bonjour,
Il est probable que le souci vient de la batterie alors la meilleure chose ? faire dans ce genre de cas reste de demander l'avis d'un r?parateur.
https://www.distriphone.com/fr/8719-Pieces-detachees-Tablette-Acer

Hi,

The following info from

http://community.acer.com/t5/Tablets/Iconia-A500-frozen-at-Acer-logo-boot-screen/td-p/7171/page/28

might be helpful:

"How do I perform a Factory Data Reset if my Acer ICONIA TAB A500 does not boot?The following steps will erase all of your personal information, all stored contacts and any programs you have installed on your tablet.
1.Power off the tablet.
2.Press and hold the Volume up button, which is located closest to the touch screen lock switch.
3.With the Volume up button held, press and hold the Power button for 3 seconds then release it. Continue holding the Volume up button.
4.Once the tablet vibrates, switch the touch screen lock switch on and off repeatedly while still holding the Volume up button.
5.Release the Volume up button and stop switching the touch screen lock switch once the "Erasing Userdata..." message appears in the upper left corner of the screen.
6.Once the factory reset has been completed your tablet will load to the Welcome screen. 7.Your Factory Data Reset has completed now follow the onscreen steps to setup your tablet."


Good Luck!

Perform a Factory Data Reset of Acer ICONIA
The following steps will erase all of your personal information, all stored contacts and any programs you have installed on your tablet.1.Power off the tablet.
2.Press and hold the Volume up button, which is located closest to the touch screen lock switch.
3.With the Volume up button held, press and hold the Power button for 3 seconds then release it. Continue holding the Volume up button.
4.Once the tablet vibrates, switch the touch screen lock switch on and off repeatedly while still holding the Volume up button.
5.Release the Volume up button and stop switching the touch screen lock switch once the "Erasing Userdata..." message appears in the upper left corner of the screen.
6.Once the factory reset has been completed your tablet will load to the Welcome screen. 7.Your Factory Data Reset has completed now follow the onscreen steps to setup your tablet.

Acer Iconia Tab A500 mfg. 2011, now 11 year old.
the battery is now end of life, called BAD
replace it.
11 year old batteries are no good now.