we dont give the 2nd gen update file to the public, you can use the free 3.1 update with the code and use the sim, end gen update exclusive to loyal reseller
others just use the free solutions
GFSIM 2nd Gen for iphone X 8 8 plus and all older Models
Supports ios 11.1.2 version and all iphone Models.
Video link
https://www.youtube.com/watch?v=JKk6XSqF7sI
For buying New 2nd Gen GFSIM contact +91 98713 11115 whatsapp.
For old GFSIM update firmware to V3.1 and use below method to unlock.
*5005*7672*88# input iccid 89860600502000180722,after finish set,just need select resettings of the setting menu.iphone need to activate again.
Supports till ios 11.1.2
Update for V3.1
Update 04-11-2017 Version GFSIM_v3_1_1102 Bug Fixes
Updating Manual video
https://m.youtube.com/watch?feature=...&v=zZcZBnEEYqc