How to Use a Tristar Tester

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Introduction

The Tristar tester is a device used to test the Tristar chip on Apple devices. The Tristar chip is responsible for USB function and interfaces with the battery charging chip. The tester can be finicky, and the manual is not always helpful.

1. Step 1 How to Use a Tristar Tester
  There are two modes
  
  Standard - no need to do anything while booting up. The tester limits options to Quick Test
  
  Expert - hold the right button while turning on the device enabling expert mode and the use of Test
  
  I've found that if the tester is charging the tristar may provide you with a false positive.
  
  If the battery on the device you are testing is disconnected it may also provide a false positive.
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