Lenovo B490 Power Issue with USB Port – Expert Repair at Raminfotech Laptop Service Center, Velachery
If your Lenovo B490 laptop is not powering ON, suddenly shuts down, or stops charging when a USB device is connected, it usually indicates a motherboard power circuit or USB port short issue. These problems are common in older Lenovo models and need professional chip-level service.
At Raminfotech Laptop Service Center Chennai Pvt Ltd – Velachery Branch, we specialize in diagnosing and repairing Lenovo B490 power and USB port issues quickly and affordably.
⚠️ Common Lenovo B490 Power & USB Problems
-
Laptop not turning ON
-
Power LED blinking or dead
-
Laptop shuts down when USB is plugged in
-
USB port overheating or burning smell
-
Battery not charging
-
Motherboard short circuit issue
🔍 What Causes This Problem?
-
Damaged USB port
-
Power IC failure
-
Motherboard short circuit
-
Liquid or dust damage
-
Over-voltage from external USB devices
🛠️ Our Lenovo B490 Repair Solutions
✔ USB port replacement
✔ Motherboard power IC repair
✔ Short circuit fixing (chip-level service)
✔ Charging issue resolution
✔ Complete power diagnostics
We use advanced tools and original-quality components to ensure long-lasting repairs.
⭐ Why Choose Raminfotech Laptop Service Center Velachery?
-
Experienced chip-level technicians
-
Affordable service cost
-
Fast diagnosis & same-day service (subject to issue)
-
Genuine spare parts
-
Trusted Lenovo laptop service in Velachery
Post a Comment