The problem is solved now. Thanks to a comment suggesting this link (Use volume buttons to move and power button to select any option)
Method 1
- Power off your Intex Mobile, by holding the power button.
- Hold down the Volume Up + Power Button.
- After that, Release both Buttons when you see Intex Logo or Android Logo appears.
- Now you can see Android Recovery Mode.
Method 2
- Power off your Intex Mobile, by holding the power button.
- Hold down the Volume Down + Power Button.
- After that, Release both Buttons when you see Intex Logo or Android Logo appears.
- Now you can see Android Recovery Mode.
Method 3
- Power off your Intex Mobile, by holding the power button.
- Hold down the Volume Up + Home + Power Button.
- After that, Release both Buttons when you see Android exclamation mark appears.
- Now you can see Android Recovery Mode, if not (While holding down the Power button press and release Volume Up Button).
Method 4
- Power off your Intex Mobile, by holding the power button.
- Hold down the Volume Up + Power Button.
- After that, Release both Buttons when you see Android exclamation mark appears.
- Next, While holding down the Power button press and release Volume Up Button.
- Now you can see Android Recovery Mode.
I tried the 4th method in the link. But since volume up + power was restarting the device normally, I held down the power and was pressing and releasing the volume up button. The device didn't go in recovery mode but it rebooted and started working withoutwithout the popup "unfortunately system UI has stopped".
