LANRUI M191 Universal Switch Clip – Phone & Tablet Motherboard Power-On Current Detection Tool

LANRUI M191 Universal Switch Clip – Smartphone & Tablet Motherboard Testing Tool

Product Overview

The LANRUI M191 Universal Switch Clip is designed to make smartphone and tablet motherboard testing, power-on checks, and fault diagnosis easier. It provides a convenient connection between a repair power source and the device motherboard, helping technicians perform board-level troubleshooting more efficiently.

Dual-Mode Operation

The M191 supports two working modes. In Detection Mode, a small current is used to provide visual feedback through the indicator light when a circuit connection is detected. In Power-Only Mode, the detection function is disabled, allowing the tool to work as a simple power switch without the indicator current.

Universal Compatibility

The switch clip is designed for use with iPhone models, non-encrypted Android smartphones, iPads, and compatible dual-cell devices. This makes it a practical tool for repair shops handling different types of mobile devices.

Easy Connection

The tool includes clearly marked VIN+ / VIN- input and OUT+ / OUT- output terminals. The supplied probe leads help establish contact with the motherboard power terminals without requiring unnecessary motherboard disassembly.

Visual Troubleshooting

The built-in indicator provides quick visual feedback during testing. Depending on the circuit condition, the indicator may remain steady or flash, helping technicians observe power behavior while troubleshooting motherboard faults, leakage, or restart-related issues.

Compact Repair Tool

With a lightweight design of approximately 25.4g, the M191 is easy to carry and store in a professional mobile repair toolkit. It can be useful for motherboard testing, second-hand device inspection, recycling checks, and board-level repair work.

Specifications

• Brand: LANRUI
• Model: M191
• Type: Universal Switch Clip / Motherboard Testing Tool
• Function: Power-On Testing & Current Detection
• Input: VIN+ / VIN-
• Output: OUT+ / OUT-
• Weight: Approx. 25.4g
• Applications: Smartphone, Tablet, iPhone, Android & iPad Repair
• Note: Color of the small middle component may vary and does not affect functionality