[Guide] How to turn S7 single SIM to S7 dual SIM [Exynos phones]

Hello,

Requirements:

• Phone must be rooted
• Need a gsm software: Z3x, Chimera, Octopus or GCKey
• Make a phone backup of efs and certificate

Steps:

1. Connect your phone to usb (make sure oem unlock and usb debuggin is on)
2. Make DM+MODEM+ADB connection allowed by calling *#0808#
3. Read your phone certificate using a gsm box
4. Open your phone certificate and duplicate everything seen after IMEI line by copying and adding 2.(example IMEI2,...

[Guide] How to turn S7 single SIM to S7 dual SIM [Exynos phones]

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