03/07/2026
⚡ Why is the test pen lighting up when it touches the laptop?
Is it a faulty charger?
A grounding issue?
Electrical leakage?
Or something more serious inside the laptop? 🤔💻
When a test pen lights up around the laptop body, USB port, charging port, or connected accessories, it usually means there may be leakage voltage or improper grounding. In some cases, it can be caused by a poor-quality charger, faulty adapter, bad wall socket, or motherboard power issue.
At Geld Technologies, we don’t guess — we test properly. 🔍
We check the charger, grounding, power input, charging circuit, and motherboard to identify the actual cause before recommending any repair.
⚠️ If your laptop gives a small shock, feels tingly, or your test pen lights up near it, don’t ignore it.
📍 Geld Technologies — Computer & Laptop Repair Specialist
📲 WhatsApp us today @0166669438