The MIJING C18 Testing Tools Middleboard is a professional-grade 3-in-1 diagnostic fixture designed for the iPhone 11 series, including the 11, 11 Pro, and 11 Pro Max . This motherboard function test fixture is specifically engineered for testing middle‑layer mainboards after layer separation, allowing technicians to quickly detect logic board faults without complex jumper wires or guesswork .

The C18 enables you to connect the upper and lower motherboards for testing and repair, avoiding problems after installation and dramatically increasing maintenance speed . By checking the board in advance, it prevents repeated disassembly and potential motherboard damage .

Key Features

• 3-in-1 Full Series Support – Compatible with iPhone 11, 11 Pro, and 11 Pro Max in a single fixture design, eliminating the need for multiple patchwork solutions 
• Solder‑Free / Weld‑Free Testing – Enables testing of power‑on, display, touch, and other functions without soldering 
• Two Testing Methods –
• • Method 1: Connect screen cable, boot, power cord, or battery to test functionality 
  • Method 2: Connect the end plug on the base to implement the brush/flash function 
• Precision Alignment – Each test rack has undergone quality assurance testing to ensure accurate alignment with solder points
• Small & Portable – Compact size makes it easy to store and carry (dimensions approximately 15×10×3 cm, weight approx. 0.24 kg)