Unlock your Rover PC Optima 5.0

OS: Android 5.1

CPU: MediaTek MT6580, 1300 MHz

RAM: 1 GB

Display: 5"

Battery: 2000 mAв‹…h

1. Use the Tenorshare 4uKey for Android app.
2. Make a hard reset (factory reset).
3. How to use a low battery to unlock a phone locked with a graphic key.
4. Delete 'gesture.key' and 'password.key' using Aroma File Manager.
5. Restore access to your smartphone using your Google Account.

1. Use the Tenorshare 4uKey for Android app.

Connect your phone to PC and launch Tenorshare 4uKey for Android.
Press the Remove button in the menu that appears on the PC screen.
The program will warn you about deleting all data from the smartphone, to continue working, click OK.
After finishing the lock removal process, put your phone into recovery mode.
Click the Next button and follow the instructions on the screen. After starting the smartphone, the screen lock will be disabled.

2. Make a hard reset (factory reset)

To get started, turn off your smartphone.Simultaneously press and hold for about 10-15 seconds one of the button combinations:
Volume down button + Power button;
Volume up button + Power button;
Volume down button + Power button + Home button;
Volume down button + Volume up button + Power button.
Select Recovery using volume up/down buttons to navigate through the menu and confirm selection by pressing the power button.
Select Wipe data/factory reset. using volume buttons to navigate through the menu and confirm selection by pressing the power button.
Finally, confirm the reset operation.

3. How to use a low battery to unlock a phone locked with a graphic key.

You need to make sure that the battery of the phone is discharged.
When the battery has a few percent left, the phone will report this and open the menu with power settings, that is, it will unlock the phone.
You need to quickly go to the security menu and disable the lock.

4. Delete 'gesture.key' and 'password.key' using Aroma File Manager.

Turn off your phone and prepare a memory card.
Transfer the Aroma File Manager program using a computer to the phone's memory card. Insert the memory card back into the phone.
Using a combination of buttons, put your smartphone into recovery mode.
In recovery mode, select the option Install zip -> Install zip from sdcard -> Choose zip from sdcard, go to the archive folder with this program and select it.
You need to find the /data/system folder and delete the files 'gesture.key' and 'password.key' (for Android 4.4 or lower) or 'getekeeper.password.key' and 'getekeeper.pattern.key' (for Android 5 or higher)
Restart your smartphone. The screen lock will be released.

5. Restore access to your smartphone using your Google Account.

After several unsuccessful ways to unlock the phone, Forgot password? will appear on the screen. Click on it.
You will need to enter your Google Account username and password.
Delete in the lock screen settings.

Thomas Nilan
Smartphone Expert

Thomas Nilan is a mobile phone expert with in-depth knowledge of the Android and iOS operating systems, who understands the settings of various hidden features that allow you to expand the capabilities of your smartphone, as well as get information about what is going on inside the phone for future repairs. He is an authority in his field, which has allowed him to become a ghostwriter for several technology publications, and he enjoys writing small mobile applications for testing smartphones.