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I3 V2 to V2.1 UPGRADING INSTRUCTION

1. Replace the Wing Nuts by 

Thumb Nuts. 

1.1 Push the heating plate and twist 

the wing nuts clockwise to unscrew 

wing nut. 

1.2 Twist the thumb Nut anticlockwise 

to tighten the thumb nut

1.3 Repeat 1.1 and 1.2 to replace the 

rest 3 wing nuts with thumb nuts. 

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