Lanrui M191 Service Tester
for Android Battery / Apple iPhone Series
The Lanrui M191 service tester is a universal and professional tool designed for quick diagnosis of motherboards, compatible with all
unencrypted Android phones, the entire iPhone series, dual SIM models, and iPad tablets. This advanced device allows you to perform complete tests directly
on the motherboard through dedicated contact points and probe-type clips, eliminating the need for full device disassembly. The tester features a
dual operating mode: the first mode uses a micro-current of 0.01A and an LED indicator to detect startup faults, while the second mode
offers a simple power-on function to check for current leaks. The built-in LED indicator provides real-time feedback, signaling
unstable current or restart issues by blinking, allowing you to identify faults on the board
even when the device screen is completely damaged.
Features:
- Product type: universal tester for GSM diagnosis and service
- Compatibility: extensive compatibility with iPhone, iPad, unencrypted Android devices, and dual SIM models
- Operating modes: dual mode (Mode 1: detection with 0.01A micro-current and LED / Mode 2: simple power-on for leak tests)
- Status indicator: built-in LED with real-time signaling
- Connection methods: supports two types of connections
- Efficiency: allows direct testing of positive and negative terminals
- Usage: ideal for diagnosing motherboards in professional service centers and for quick checking of second-hand devices