When purchasing a phone, you may want to inspect the screen for dead pixels or bright spots to ensure there are no defects?
Steps to Test Mobell S50 Screen as Follows:
Step 1: Download the Antutu app, open it, and select 'Screen test'.

Select 'Screen test'.
Step 2: Choose 'LCD Test'.

Choose 'LCD Test'.
Step 3: Tap multiple times on the screen to switch between different colors to check for any abnormalities.

Tap the screen several times.
Step 4: Complete.

Complete.
That concludes your setup process. Wishing you success.
