Please find the new method to resolve the reboot issue
http://xdaforums.com/showthread.php?p=27090201#post27090201
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From ICS, if you want to use VPN, you have to set pattern/pin lock, it's very inconvenience, today, I found a ICS bug which can remove the pattern/pin lock after you setup the VPN.
My device is 4.0.2, I'm not sure if it works on later version.
Steps:
1. Set pattern lock
2. Set your VPN and save
3. lock the screen, and press power button, the screen shows pattern unlock points, try a wrong pattern 5 times, then system will say you may forget the pattern and you will be blocked to try for 30 seconds, and then a new option "forget password" will display in the button.
4. click the "forget password" button, use google account to unlock it. it's done.
Now, check you VPN setting, it's still there and you can use it normally. Again, lock your phone and press power button to open it, the unlock method changes to normal instead of pattern.
Enjoy it!
Found a Known Issue: If you reboot your device, the VPN will be losted again, you have to redo all steps above. It sounds like untethered jailbreak
http://xdaforums.com/showthread.php?p=27090201#post27090201
----------------------- old post -----------------------
From ICS, if you want to use VPN, you have to set pattern/pin lock, it's very inconvenience, today, I found a ICS bug which can remove the pattern/pin lock after you setup the VPN.
My device is 4.0.2, I'm not sure if it works on later version.
Steps:
1. Set pattern lock
2. Set your VPN and save
3. lock the screen, and press power button, the screen shows pattern unlock points, try a wrong pattern 5 times, then system will say you may forget the pattern and you will be blocked to try for 30 seconds, and then a new option "forget password" will display in the button.
4. click the "forget password" button, use google account to unlock it. it's done.
Now, check you VPN setting, it's still there and you can use it normally. Again, lock your phone and press power button to open it, the unlock method changes to normal instead of pattern.
Enjoy it!
Found a Known Issue: If you reboot your device, the VPN will be losted again, you have to redo all steps above. It sounds like untethered jailbreak
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