Device Guides

Samsung Galaxy S4 Mini

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I can't turn on my mobile phone

This troubleshooting guide will take you through a number of possible causes to help you find a solution to your problem.

Possible cause 1:

The phone lock code is turned on: Key in your phone lock code. You can now turn off the phone lock code. If you have forgotten your phone lock code, contact the phone manufacturer for assistance.

List view

1. 1. Find "Screen lock"

Slide your finger down the display starting from the top edge of your mobile phone.
Tap the settings icon.
Tap the My device tab.
Tap Lock screen.
Tap Screen lock.

2. 2. Select option

You can create several types of phone lock codes. The following steps show two examples:
Create phone lock code using a pattern, go to 2a.
Create phone lock code using a PIN, go to 2b.
Samsung Galaxy S4 Mini

3. 3. 2a - Create phone lock code using a pattern

Tap Pattern.
Tap and drag a point to connect at least four points.
Tap Continue.
Repeat the selected phone lock code to confirm.
Tap Confirm.
Key in a four-digit PIN and tap Continue.
Key in the PIN again and tap OK.

4. 4. 2b - Create phone lock code using a PIN

Tap PIN.
Key in the required phone lock code and tap Continue.
Key in the phone lock code again and tap OK.

5. 5. Turn off use phone lock code

Tap None.

6. 6. Return to the home screen

Tap the Home key to return to the home screen.
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