Securing Your Android Device: Must Read Before Using Unlock Patterns

The unlock pattern is an interesting way to protect your Android smartphone or tablet. Easier to input than a text password and more secure than a number password, an unlock pattern simply requires you to draw a pattern to unlock the screen.

Unlock patterns can be as simple as this:




Or as complicated as this:


  If for some reason you can’t remember the unlock pattern function and enter too many incorrect combinations, then you are temporarily locked out. Fortunately, all you need to do is enter the email address and password of your Google account to unlock it again. However, it’s software based and software is not always perfect.

There is a known bug in Android where the unlock pattern simply doesn’t work and the only way to disable it is to restore the phone to factory settings. Restoring the phone to its default settings will delete the user data and the installed applications (memory card data will not be lost), but it’s a much better than permanently losing access to your phone due to a bug.
Factory resetting is done through the recovery boot menu, which is not accessible on all devices

http://www.electroshopworld.com/Products/Menu/44.html

On the popular TechPad Android tablet, the recovery menu is not accessible directly, but it’s not impossible to disable the unlock pattern. It does, however, require slight technical knowledge and a slight modification to the tablet’s system database.

To start, download the HIDROID drivers from our download page located here: Android Wireless Fix. This is just a patch for some WiFi fixes, but contains the necessary drivers and tools.

Next, extract the files to anywhere on your computer (preferably somewhere easy to access). We recommend “C:\tablet”, which is the directory this guide will be using.

Connect the tablet to the PC. (Windows XP 32bit recommended)

When it asks for the HIDROID drivers, browse to and select “C:\tablet\androidusbdriverforx86\x86″ from your downloaded file.

Open up the command prompt. (Start ->Run -> enter “cmd” without quotes and press enter).

Enter the following commands:
C: [press enter] (it will switch to C drive)
cd \ [press enter] (go to root directory of the C drive)
cd tablet\WIFI update [press enter] (go to the folder where the development tool is located)

Now, we start modifying the system database:
Enter the following commands:
adb -d shell [press Enter]
# sqlite3 data/data/com.android.providers.settings/databases/settings.db [Press enter]
sqlite> update system set value=0 where name=’lockpatternautolock’; [Press enter]
sqlite> update system set value=0 where name=’lockscreen.lockedoutpermanently’; [Press enter]
sqlite> .exit [Press enter]
# exit [Press enter]

Now power off the device, remove the USB cable and turn it back on. You are done!