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-   -   How to convert G935F to G935FD (https://forum.gsmhosting.com/vbb/f777/how-convert-g935f-g935fd-2199162/)

raza786 02-28-2017 22:21

How to convert G935F to G935FD
 
hi

how do i convert G935F to G935FD. I need to use 2 sims.

THANX

.::MD_AKTER::. 02-28-2017 22:39

Quote:

Originally Posted by raza786 (Post 12370303)
hi

how do i convert G935F to G935FD. I need to use 2 sims.

THANX

Change pcb to get dual sim support

raza786 03-01-2017 04:57

My brother took his G935F to a shop and they did it. Search youtube and you will see its possible.

.:D:. 03-01-2017 05:50

impossible bro,........
you should change the devices

raza786 03-01-2017 06:23

It is not impossible ,plz do some research before saying its not possible. i will take out pics and post this week.

.:D:. 03-01-2017 11:38

brother you have single sim set, so how you say about convert it to dual sim??
can you explain us little

raza786 03-01-2017 18:29

please google it and you will see.

Pansta 03-12-2017 14:02

G935F and G935D use same pcb with all readers there, you can activate in z3x.

hoang 03-12-2017 16:40

write Slave IMEI (with Cert), SIM2 will be activated!
You can do by this way: read Cert from phone, edit Cert file, add IMEI2 Cert data like IMEI1, write to phone!

gsmsikar 03-25-2017 20:38

i also have a sm-g935f Samsung s7 edge G935FXXU1DQC2 having Nougat 7.0 from middle east in which VOLTE is not working , i dont want to use 2 sim just VOLTE ,
so i want to convert it to India version g935fd , is that possible ?
or is there any way to start VOLTE ?


urgent reply please .

optimus 03-27-2017 17:28

Hello Guys...the mainboard of g935f and g935fd are the same. To change g935f ( single) sim to g935fd (dual), 1st run g935fd software on the unit and write any dual sim imei for the unit...voila. you have dual sim support so just change your sim tray to dual. The same procedure if you want to change dual sim to single sim...i have done it many times.:)

raza786 03-27-2017 20:39

hi
What software are you using.

thanx

...:::::NP™:::::... 03-27-2017 23:17

Please guys don't provide any wrong thing about the topic http://forum.gsmhosting.com/vbb/f453...epair-2208339/ yours same topic already have discussion with solution.



Before hesitation, use search the button working properly for solution.




Best regard

lasty 04-19-2017 14:42

I need the opposite information... How to convert g935fd to g935f to single sim.
It is originally a single sim phone but it been ruined by sw and now it shows g935fd...dual sim options too.
Please help

lasty 04-21-2017 12:42

Sorted it was the NV data

easy-team 04-21-2017 12:57

in simple words you can convert single into dual sim

take a phone G935F and root and read cert

open cert into notepad and make it dual ( manual already post in forum)

connect Same phone again and Put the cert which you edit for dual sim Just write it backup on Same phone

Done
you will get dual imei ( both imei will be same )
Enjoy Dual simcard Phone :)
Method is Tested and Working
Dont Ask for More

ROLAND_GARROS 05-06-2017 08:35

Hello, I have problem with my g935f S7.
I accidentally uploaded the firmware g935fd and now I can't restore it on g935f. Could you help me come fare to solve the problem. Thank you

benjamen50 03-23-2018 07:50

No need to flash Sm-G935FD firmware yes?

IMEI2 in cert add via notepad I think.

instrumental 03-24-2018 10:05

I would like to help you if you're interested

CHANDARAKK 03-25-2018 00:56

Quote:

Originally Posted by benjamen50 (Post 13037436)
No need to flash Sm-G935FD firmware yes?

IMEI2 in cert add via notepad I think.

u right no need any flash FD just IMEI2 via notpad and write back cert edit than restart phone and done

benjamen50 03-28-2018 01:58

I think they have blocked downgrading older firmware than February 2018, I have too new firmware. Any solution for this? Older modem flashing seems to not work on newer firmware.

irfan gsm 04-26-2018 07:14

Turn On your Phone.
Go to Setting.
Then Go to About Device.
Then Go To Build Number and Press Build 8 times.
Now Go back and find Developer Option.
Now Turn On USB Debugging.
Now Go Back to Phone Dialer.
Press *#0808# and Select DM + Modem + ADB and Press Ok Button.
Now Connect USB cable and Open Z3x Box.
Now Go to G935FD Model and press repair From menu.
Now Enter IMEI of the Phone 2 Times and press Repair Button.
Mobile will ask For Adb Check Box and press Ok.
Then Ask for root permission. Check Box and click Ok.
Now Z3x will ask for Wrong Model Click Ok to Proceed.
Wait 2 Minutes after process of Z3x Mobile Will Restart.
When Mobile is In Full Menu Now In Z3x Repair Menu Press Patch Certificate.
wait 2 to 3 Minutes after restart insert dual sim jacket with Sims and check signals.

instrumental 04-27-2018 15:05

Anyone need help about convert it will be my pleasure to help

benjamen50 05-03-2018 06:09

OK I Have read out the cert, I will try IMEI2 now notepad trick and report back if successful.

benjamen50 05-03-2018 06:31

[ 3/05/2018 3:21:00 PM ] Operation: Write CERT
[ 3/05/2018 3:21:00 PM ] Selected model: SM-G935F
[ 3/05/2018 3:21:00 PM ] Software version: 31.5.1
[ 3/05/2018 3:21:00 PM ]
[ 3/05/2018 3:21:00 PM ] Waiting ADB device... OK
[ 3/05/2018 3:21:00 PM ] Reading phone info...
[ 3/05/2018 3:21:00 PM ] Model: SM-G935F
[ 3/05/2018 3:21:00 PM ] Android version: 7.0
[ 3/05/2018 3:21:00 PM ] PDA version: G935FXXS2DRCE
[ 3/05/2018 3:21:00 PM ] CSC version: G935FOPS2DRAC
[ 3/05/2018 3:21:00 PM ] Phone version: G935FXXU2DRAC
[ 3/05/2018 3:21:00 PM ] Product code: SM-G935FZSAOPS
[ 3/05/2018 3:21:00 PM ] CSC country code: Australia
[ 3/05/2018 3:21:00 PM ] CSC sales code: OPS
[ 3/05/2018 3:21:00 PM ] Phone SN:
[ 3/05/2018 3:21:00 PM ] IMEI:
[ 3/05/2018 3:21:00 PM ] HW version: MP 0.801
[ 3/05/2018 3:21:00 PM ] RF cal date: 20160609
[ 3/05/2018 3:21:00 PM ] Chip name: EXYNOS8890
[ 3/05/2018 3:21:00 PM ] Modem board: SHANNON335
[ 3/05/2018 3:21:00 PM ] Security patch: 2018-03-01
[ 3/05/2018 3:21:00 PM ] Boot Warranty bit: 1
[ 3/05/2018 3:21:00 PM ] Checking Super user right... true
[ 3/05/2018 3:21:00 PM ] Reading NV data... OK
[ 3/05/2018 3:21:00 PM ] Checking NV data... OK
[ 3/05/2018 3:21:00 PM ] Reading data... OK
[ 3/05/2018 3:21:00 PM ] Detecting MODEM... OK
[ 3/05/2018 3:21:00 PM ] Reading MODEM... OK
[ 3/05/2018 3:21:00 PM ] Calculating... OK
[ 3/05/2018 3:21:00 PM ] Writing zTool... OK
[ 3/05/2018 3:21:00 PM ] Initialization zTool... OK
[ 3/05/2018 3:21:00 PM ] Running zTool, please wait...
[ 3/05/2018 3:21:00 PM ] Start... OK
[ 3/05/2018 3:22:00 PM ] Initialization... OK
[ 3/05/2018 3:22:00 PM ] Generate and check client proof... OK
[ 3/05/2018 3:22:00 PM ] Verify proof by client... OK
[ 3/05/2018 3:22:00 PM ] Reading data... OK
[ 3/05/2018 3:22:00 PM ] HWID: 12 6D EE 6E CE A7 CA 65 BE 31 4C DA 3F FD E3 08
[ 3/05/2018 3:22:00 PM ] Calculating... OK
[ 3/05/2018 3:22:00 PM ] Initialization AT RIL...
[ 3/05/2018 3:22:00 PM ] AT RIL stopped, restarting... OK
[ 3/05/2018 3:23:00 PM ] Checking for compatible phone and cert
[ 3/05/2018 3:23:00 PM ] Phone KEY ID: 0445
[ 3/05/2018 3:23:00 PM ] Checking certificate file... OK
[ 3/05/2018 3:23:00 PM ] KEY ID: 0445
[ 3/05/2018 3:23:00 PM ] Crypting CERT 1... OK
[ 3/05/2018 3:23:00 PM ] Crypting CERT 2... OK
[ 3/05/2018 3:23:00 PM ] Writing NV data... OK
[ 3/05/2018 3:23:00 PM ] Rebooting phone... OK
[ 3/05/2018 3:23:00 PM ] Write CERT done

Very Good Dual sim work great.

volcanizer 05-10-2018 04:01

error on checking cert:

Waiting ADB device... OK
Reading phone info...
Model: SM-G935F
Android version: 7.0
PDA version: G935FXXS2DRC3
CSC version: G935FOJV2DRAG
Phone version: G935FXXU2DRAG
Product code: SM-G935FZDAXSG
CSC country code: UAE
CSC sales code: XSG
Phone SN: RF8H43328ZE
IMEI: 359457077861960
HW version: MP 0.801
RF cal date: 20160429
Chip name: EXYNOS8890
Modem board: SHANNON335
Security patch: 2018-03-01
Boot Warranty bit: 1
Checking Super user right... true
Reading NV data... OK
Checking NV data... OK
Reading data... OK
Detecting MODEM... OK
Reading MODEM... OK
Calculating... OK
Writing zTool... OK
Initialization zTool... OK
Running zTool, please wait...
Start... OK
Initialization... OK
Generate and check client proof... OK
Verify proof by client... OK
Reading data... OK
HWID: 7B E7 25 8F 37 AE 47 A0 0E C3 60 98 0E 04 80 95
Calculating... OK
Initialization AT RIL...
AT RIL stopped, restarting... OK
Checking for compatible phone and cert
Phone KEY ID: 0445
Checking certificate file... error
Incorrect size of Public key 2 signature

Done with Samsung Tool PRO v.31.4

benjamen50 05-12-2018 01:48

You need to add ImeiSign, PubKey, PubKeySign as well under IMEI2 in the cert file, check through YouTube video if needed.

Search up cert edit dual Sim repair, all shown there.

If it doesn't work I'll check out my dual Sim cert and post how to do it here.

...:::::NP™:::::... 05-12-2018 09:44

I have a small word, http://forum.gsmhosting.com/vbb/12417582-post9.html

benjamen50 05-13-2018 07:56

Here is what cert file should look like, imeisign2, pubkey2 and pubkeysign2 should be same is the imeisign, pubkey, pubkeysign.

;Z3X Samsung CERT file
;Please do not edit this file
[cert]
Model=SM-G935F
SerNo=xxxxxxxxxxx
IMEI=xxxxxxxxxxxxxxxx
ImeiSign=xxxxxxxxxxxxxxxx
PubKey=xxxxxxxxxxxxxxxx
PubKeySign=xxxxxxxxxxxxxxxx
IMEI2=xxxxxxxxxxxxxxxx
ImeiSign2=xxxxxxxxxxxxxxxx
PubKey2=xxxxxxxxxxxxxxxx
PubKeySign2=xxxxxxxxxxxxxxxx

I know SM-G935F works, but I have never tried it on the SM-G930F version which is non-edge. The main board has SM-G930FD, SM-G930F/W8.

So I assume the hardware is there but the same cert procedure and dual sim tray applies.

When doing dual sim you do not use imei repair, patch certificate at all. All that is needed is read the cert, edit the cert that was read and saved, write the edited cert to the phone and that's it. It will even survive factory reset / updates as it's cert.

tariqq 10-20-2018 21:46

I have solution and i have file to convert very easy in 5 menuts you can chang

mach6 12-05-2018 20:35

is possible under last Android 8 ?
thanks regards

emmaugoh 03-02-2019 03:41

Quote:

Originally Posted by tariqq (Post 13374889)
I have solution and i have file to convert very easy in 5 menuts you can chang

pls teach me the solution

alikashan 03-04-2019 06:56

its easy
flash combo
then root
then read cert with z3x
make it dual by edit then
write cert and its dones
and flash stock rom
if you cant pm me i can

akshargajjar 11-01-2019 10:40

Can any one guide me with simplest method to convert samsung A70 single sim to dual Sim SM 705w model?
Its not rooted.
Thank you


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