You may have to perform a reset if your Acer C510 no longer responds to the buttons on the screen.
Performing a soft reset
A soft reset allows your Acer C510 to get a fresh start, similar to rebooting a computer. All records and entries are retained after a soft reset. To perform a soft reset: • Using the tip of your stylus, lightly press the Reset button inside the hole on the upper right-hand side of your Acer C500.
Be careful with sharp edge
Performing a hard reset
A hard reset will erase all records and entries stored in your Acer C510. Never perform a hard reset unless a soft reset does not correct your problem. When you perform your next ActiveSync operation, you can restore any data that you previously synchronized to your computer.
To perform a hard reset:
1 Press and hold the Today and Messaging (a) buttons on your Acer c510 Series. 2 While holding the Calendar and Contacts buttons, using the tip of your stylus, lightly press the Reset button inside the hole (b) on the upper right-hand side of your Acer C510.
NOTE: When you perform a hard reset, formats, preferences and other settings including date and time are restored to their factory default settings. All data, records and entries, except for those stored in ROM, will be erased.
General advice: Before you buy a new cell phone or new tablet, please try the following procedure to repair your device in a software way. First charge your battery, backup your important data if possible and in most cases take out SIM and SD card before doing factory reset. It is impossible to recover your data after doing a hard reset, so online backup is always important. For all of your data, a backup should be done on an external device, hard drive, raid system or media. With or without insurance, if your cell phone lost, damaged or stolen at least your invaluable data is backed up in a safe place. If you are about to sell your phone and you want to wipe your personal data, or if your phone affected with virus you have to do a hard reset. In some cases, you can delete the forgotten password or lock pattern from your device as well. All information is for devices with stock based ROMs. If you are using rooted device, always back up your EFS folder first, containing your IMEI info, etc.! Please also note, that a hard reset operation will not unlock your mobile phone's SIM lock or network lock, but it will remove the unlock pattern, remove the user password or PIN password (NOT the SIM card's 4 digit PIN code). Also note that the firmware version will not be affected in any way, it will not be downgraded, it will remain the same you are using and if you have rooted your device, root privileges remain also unaffected.
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