Imac 21.5, Model : A1418 , Release Year : 2017
Common Issue: Completely black screen on startup with only chimp sound.
Reasons for this issue:
- Failed backlight on display panel.
- Display cable can be either loose or damaged.
- MacOS system file can be corrupted.
- GPU or logicboard can be malfunctioning.
- There can be irregularity in power supply.
Your iMac deserves the best treatment in fort worth! We provide best imac treatment. Our repair are quick and reliable. You will have your device working with no problem when you come to us. We also give warranties on our repairs because we know that they are not going to go down after we do the repair.
Mac Tech Service
Our Service:
1) Diagnostic of backlight circuit and board-level repair.
2) Reseating and inspection of LVDS cable.
3) Reinstallation of macOS via recovery mode.
4) Reset of SMC and PRAM with diagnostics.
5) Replacement of full logic board with clean soldering.
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