• Broken Digitizer A broken digitizer might be the main culprit behind you facing the'' iPhone screen not working'' issue. A broken digitizer creates issues when transmitting the signals to the system.

  • Hardware issue The issue with the logic board or LCD screen might cause the problem.

  • iOS system issue If you're not facing any hardware issues but still are struggling with the ''screen on iPhone not working'' issue, it could be due to an iOS System issue. A malfunctioning iOS system creates many problems, and having to face the half-screen issue is one of them.

  • Others Causes Rapidly changing temperature might also be the main thing behind the ''left side of iPhone screen not working'' issue. Moreover, if you're using a non-Apple screen, it could also contribute to the issue.