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Main screen turn on failure (Fold models)

Main screen does not turn on after replacement (Fold models)

Samsung · Galaxy Series (Mobile)

What does Main screen turn on failure (Fold models) mean?

After replacing the screen on a Fold model, the main screen may appear off while the cover screen is on. This is normal and not a hardware failure before calibration.

Common Causes

  • Screen replacement on Fold models

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Fold the device and launch the Self Repair Assistant app on the cover screen.

  2. 2

    Navigate to the digital hall sensor calibration screen.

  3. 3

    Unfold the device and press the Volume Up or Volume Down button.

  4. 4

    A vibration will confirm calibration is in progress.

Browse all codes in this manual (49)
Verified technical data. Last updated: April 2026

Related Faults

Battery connector errorBattery connector not properly connected during reassemblyBattery initialisationBattery initialisation required — Enter serial number or scan QR codeBlue circle iconBlue circle icon — Do not insert pick too deep
Source: Samsung Galaxy Series (Mobile)
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