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phone 6 6p 6s 7 7p A8 A9 A10 CPU chip testing jig, Testing good / bad A8 A9 A10 CPU by this Test Fixture, restore the iphone, show 53 error,  the CPU is good status, or it is the upper / lower error on the CPU. 

Phone A8 A9 A10 CPU Test Fixture, it is All-in-One testing jig machine, 
 

Before Mobile Repair Engineer soldering A8 / A9 / A10 CPU to motherboard, this CPU Test Fixture will distinguish and test CPU BAD or GOOD ? save the time and money, if Engineer soldering the Bad CPU to motherboard, waste the time and money.

[Optional Type]:
Optional 1:  A8 CPU Test Fixture, 
Optional 2:  A9 Upper CPU Test Fixture

instructions: A8 CPU testing jig

1. distinguish the pin 1 on A8 CPU, need according to small dots on the A8 CPU back side, Not according as Font orientation identifying on A8 CPU, Top left corner point of CPU test slot is pin 1.
    
2. Cleaning
     Using alcohol only to clean pin with dirt.
 
3. Flashing

    Only using original cable for flashing, non original cable will cause unstable status.

4. CPU healthy checking

Using itunes status to judge CPU healthy status. If pass itunes status successfully, it means OK, otherwise it means the CPU is failed.

More deatils can consult www.vipprogrammer