Resetting the PPC 6600 and

Clearing Memory
You can perform a soft reset or a full reset. During a soft
reset, the device is restarted and only some data in open
programs may be lost. However, a full reset turns the battery
off and returns the device to its original factory settings
and deletes all programs, files, contacts and other information
you have saved to the device. Therefore it is extremely
important to back up data to a storage card or your computer
on a regular basis in the event that a full reset has to be
performed.

Audiovox PPC 6600 Hard reset Soft reset

To perform a soft reset:

If your PPC 6600 responds slowly, stops responding, or freezes,

try a soft reset. A soft reset causes the PPC 6600 to restart andre-adjust memory allocation. Unsaved data in open windows may be lost.

Use the stylus to press and hold the Reset button.

Audiovox PPC 6600 Hard reset Soft reset

To perform a PPC6600 full reset:

A full device reset clears memory, deletes all data and restores
the PPC 6600 to its default settings. Programs installed at the
factory remain, while data you have created and programs you
have installed are all erased.
Press and hold the power button, and then the use
stylus to press the soft reset button at the same
time.
Be sure you have backed up all your data in a SD
card or in your PC before performing a full reset.
Audiovox PPC 6600 Hard reset Soft reset

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.