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Hardon 220 Mod by Steam Crave (Dual 21700)

Designed for 25-35MM Atty



Package Contents:

1. Hardon 220 Mod

1. Micro USB

1. Silicone Sleeve

1. User Manual

1. Steam Crave Sticker

In stock (1000 items available)
  • $115.00
  • Weight
    10 oz
  • SKU

1. Download driver from Yihi website .

  File name: SXi-v2.8.6.6-Setup-20180611-1445-English 

  Install it in your PC and then click Connection to install Driver 

 2. Download latest firmware in our website

3. Turn off and remove battery out of device 

4. Remove your atty from device

5. Connect USB cable to PC

6. Open SXi - Upgrade - Open file - upgrade


Version A:Lock adjust buttons only, fire button still working

1) To clear puff counter manually. Press & hold + button for 1.5 seconds (Puff counter won’t reset after changing batteries).

Also includes puff counter to count as a 1 second puff.

2) To enter bypass mode: Press & hold - button for 1.5 seconds.



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