[Guide] How to turn S7/Edge single SIM to S7/Edge dual SIM [Exynos phones] - GSM-Forum

theogritzi · 03-02-2018, 15:24

Supported Models:
Galaxy S7 Galaxy S7 edge
SM-G930F SM-G935F
SM-G930S SM-G935S
SM-G930L SM-G935L
SM-G930K SM-G935K
SM-G930W8 SM-G935W8

Requirements:

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

Steps:

Connect your phone to usb (make sure oem unlock and usb debuggin is on)
Make DM+MODEM+ADB connection allowed by calling *#0808#
Read your phone certificate using a gsm box (in z3x box you go to unlock tab and press Read cert)
Open your phone certificate with notepad and duplicate everything seen after IMEI line by copying and adding 2.(example IMEI2, PubSignKey2, etc)
Write back your new phone certificate (in Z3x box you press write cert
Your phone is now dual sim

Mentions:

This won't change your IMEI so it won't trigger law in countries where IMEI changing is illegal.
In case you don't have gsm box or you need help you can contact me.
I tested and done it on multiple exynos versions(g930f, g930w8) and it worked.

atou · 03-02-2018, 15:58

not support t mobile model qualcom G930T

theogritzi · 03-02-2018, 16:22

Quote:

Originally Posted by atou

not support t mobile model qualcom G930T

Nope, it's only for Exynos.

NsNobel2 · 08-20-2018, 17:43

Quote:

Originally Posted by theogritzi

Supported Models:
Galaxy S7 Galaxy S7 edge
SM-G930F SM-G935F
SM-G930S SM-G935S
SM-G930L SM-G935L
SM-G930K SM-G935K
SM-G930W8 SM-G935W8

Requirements:

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

Steps:

Connect your phone to usb (make sure oem unlock and usb debuggin is on)
Make DM+MODEM+ADB connection allowed by calling *#0808#
Read your phone certificate using a gsm box (in z3x box you go to unlock tab and press Read cert)
Open your phone certificate with notepad and duplicate everything seen after IMEI line by copying and adding 2.(example IMEI2, PubSignKey2, etc)
Write back your new phone certificate (in Z3x box you press write cert
Your phone is now dual sim

Mentions:

This won't change your IMEI so it won't trigger law in countries where IMEI changing is illegal.
In case you don't have gsm box or you need help you can contact me.
I tested and done it on multiple exynos versions(g930f, g930w8) and it worked.

Will 2nd sim will after flash the phone?

Believetech · 01-13-2019, 21:50

Not working any solution

Mizanur1358 · 03-06-2019, 22:48

can I do this with having my official oreo rom?
or I must have to use custom rom in this case ?
watting for yor reply sir

03-02-2018, 15:24	#1 (permalink)
theogritzi Junior Member Join Date: Feb 2018 Posts: 20 Member: 2814663 Status: Offline Thanks Meter: 6	[Guide] How to turn S7/Edge single SIM to S7/Edge dual SIM [Exynos phones] Supported Models: Galaxy S7 Galaxy S7 edge SM-G930F SM-G935F SM-G930S SM-G935S SM-G930L SM-G935L SM-G930K SM-G935K SM-G930W8 SM-G935W8 Requirements: Phone must be rooted Link Need a gsm software: Z3x, Chimera, Octopus or GCKey Make a phone backup of efs and certificate Steps: Connect your phone to usb (make sure oem unlock and usb debuggin is on) Make DM+MODEM+ADB connection allowed by calling #0808# Read your phone certificate using a gsm box (in z3x box you go to unlock tab and press Read cert) Open your phone certificate with notepad and duplicate everything seen after IMEI line by copying and adding 2.(example IMEI2, PubSignKey2, etc) Write back your new phone certificate (in Z3x box you press write cert Your phone is now dual sim Mentions:* This won't change your IMEI so it won't trigger law in countries where IMEI changing is illegal. In case you don't have gsm box or you need help you can contact me. I tested and done it on multiple exynos versions(g930f, g930w8) and it worked. Last edited by MyGSM World; 03-09-2018 at 23:23.

03-02-2018, 15:58	#2 (permalink)
atou No Life Poster Join Date: Sep 2010 Posts: 2,173 Member: 1388609 Status: Offline Sonork: atou Thanks Meter: 156	@r not support t mobile model qualcom G930T Last edited by MyGSM World; 03-09-2018 at 23:24. Reason: Quote Removed.

01-13-2019, 21:50	#5 (permalink)
Believetech Junior Member Join Date: Oct 2018 Posts: 3 Member: 2871079 Status: Offline Thanks Meter: 0	Not working any solution

03-06-2019, 22:48	#6 (permalink)
Mizanur1358 Junior Member Join Date: Feb 2019 Location: Bangladesh Posts: 8 Member: 2896812 Status: Offline Thanks Meter: 0	can I do this with having my official oreo rom? or I must have to use custom rom in this case ? watting for yor reply sir