Blog English

Ghost Touch on Smartphones: Causes, Detection, and Testing

Ghost touch can cause smartphones to register inputs without physical contact. Learn what causes it, how to diagnose and fix it, and how refurbishers can identify faulty touchscreens.

11 min read

How to Fix a Phone Stuck in a Boot Loop

Learn how to fix a boot loop on Android and iPhone, identify common causes, troubleshoot startup failures, and recover your phone while minimizing data loss.

9 min read

iPhone Screen Black? How to Diagnose the Cause

An iPhone screen can go black because of software, battery, or hardware problems. Learn how to identify the cause, troubleshoot the issue, and determine when repairs are needed.

8 min read

Find My iPhone Not Working? How to Check and Diagnose the Issue

Find My iPhone not working? Learn why locations stop updating, how to fix sharing and connectivity issues, and when to investigate possible GPS hardware problems.

8 min read

NSYS Group to Exhibit at EBM2026 in Portugal

NSYS Group is heading to EBM2026 in Faro with its own booth and Reeva Nova. Meet the team at Booth 29 from October 21–23, 2026.

1 min read

How to Connect an iPhone to a Mac or Windows PC (and Fix Connection Issues)

Learn how to connect an iPhone to a Mac or Windows PC, transfer files, troubleshoot USB connection issues, and prepare devices for professional diagnostic testing.

12 min read

How to Reset Network Settings on iPhone and What It Does

Learn how to reset network settings on an iPhone, what happens to saved Wi-Fi connections and cellular configurations, and how to troubleshoot connectivity problems without deleting personal data.

12 min read

What Are Haptics on a Phone and How Do They Work?

What are haptics on a phone, and how do they work? Learn how tactile feedback works on iPhone and Android, how to adjust settings, and how to troubleshoot vibration problems.

14 min read

How to Turn GPS On or Off on iPhone and Android

Learn how to turn GPS on or off on iPhone and Android, manage app location permissions, adjust precise location settings, and troubleshoot common GPS problems.

5 min read

Phone Microphone Not Working? How to Diagnose the Issue

Learn why a phone microphone may stop working, how to test it across calls, recordings, and apps, and how to distinguish software issues from hardware faults.

7 min read

Face ID Not Working on iPhone? Diagnose the Problem Before You Fix It

Learn why Face ID may stop working on an iPhone, how to test the TrueDepth camera, distinguish software from hardware issues, and diagnose the problem before repair.

6 min read

iPhone Camera Not Working? How to Test and Identify the Problem

Learn how to identify why an iPhone camera is not working, test front and rear cameras, distinguish software from hardware issues, and know when further diagnostics are needed.

7 min read