g920f andorid 7 cert write - GSM-Forum

CIP&CIOP · 07-17-2017, 12:38

I tried to make the downgrade but I always get it wrong.
Solutions?

Octopus box · 07-17-2017, 12:46

Hello.

Unfortunately downgrading is not always possible. On your own risk You can try to downgrade only phone's modem.
Currently no solution to write a Cert file for Galaxy S6 phones on Android 7 firmwares.

amleto90 · 07-17-2017, 13:29

Hi, depends on the version of Android 7 you have as the original stock firmware of the phone, you have to downgrade to version 6.0.1 to the recent security patch version seeing if the binary revision is compatible because otherwise you can not do the downgrade the phone hangs, to do this you have to download the firmware of the same country from Sammobile then use Odin unpacking the firmware in 4 files and upload them to Odin and make the flash note that if The firmware is not compatible with the binary Revisio because of the blocked bootloder you remain locked the phone, finished the whole test to write the certificate or use the patch doing repair IMEI and repair network

shahsoft · 07-18-2017, 02:15

Please tell me the correct 7.0 firmware installed in the phone right now
I will help you to downgrade it to 6.0.1

Sent from my iPhone using Tapatalk

CIP&CIOP · 07-25-2017, 15:15

Quote:

Originally Posted by shahsoft

Please tell me the correct 7.0 firmware installed in the phone right now
I will help you to downgrade it to 6.0.1

Sent from my iPhone using Tapatalk

You can publicize the solution to help the whole forum since the forum helps everyone and has also helped you surely.

the firmware installed now is:
nrd90m.g920fxxs5eqe6

baseband
g920fxxu5eqcd

amleto90 · 07-25-2017, 16:13

Hi, try to make the Dowgrade to this version of Android 6.0.1 just downloaded the firmware from Sammobile unzip the file in 4 files and make the firmware flash

Security Patch Level 2017-03-01
Product code ITV
PDA G920FXXS5DQC1
CSC G920FITV5DQA2

CIP&CIOP · 07-26-2017, 11:02

Quote:

Originally Posted by amleto90

Hi, depends on the version of Android 7 you have as the original stock firmware of the phone, you have to downgrade to version 6.0.1 to the recent security patch version seeing if the binary revision is compatible because otherwise you can not do the downgrade the phone hangs, to do this you have to download the firmware of the same country from Sammobile then use Odin unpacking the firmware in 4 files and upload them to Odin and make the flash note that if The firmware is not compatible with the binary Revisio because of the blocked bootloder you remain locked the phone, finished the whole test to write the certificate or use the patch doing repair IMEI and repair network

how i can unzip original firmware in 4 parts?

Octopus box · 07-26-2017, 11:50

You can extract files from an original firmware in 2 steps:
1. Remove *.md5 extension.
2. Unzip *.tar archive.

CIP&CIOP · 07-26-2017, 11:57

Quote:

Originally Posted by Octopus box

You can extract files from an original firmware in 2 steps:
1. Remove *.md5 extension.
2. Unzip *.tar archive.

Never cease to learn :-)

CIP&CIOP · 07-26-2017, 12:09

Quote:

Originally Posted by Octopus box

You can extract files from an original firmware in 2 steps:
1. Remove *.md5 extension.
2. Unzip *.tar archive.

I extracted the files but did not get 4 files, rather I got these files:

boot.img
cache.img
cm.bin
hidden.img
modem.bin
recovery.img
sboot.bin
system.img

How i do proceed?

amleto90 · 07-26-2017, 12:25

Hello use this program to unpack the firmware in 4 files below to find the link where to download it and how to do it
http://forum.gsmhosting.com/vbb/f777...ndows-1874242/

shahsoft · 08-07-2017, 22:48

Quote:

Originally Posted by CIP&CIOP

You can publicize the solution to help the whole forum since the forum helps everyone and has also helped you surely.

the firmware installed now is:

nrd90m.g920fxxs5eqe6

baseband

g920fxxu5eqcd

Sorry for the late
I think your problem was solved if not so flash your phone with this combination file after that write cert
https://androidfilehost.com/?fid=817550096634786996

Br
Shahzaib jahangir
#Unlockerplus

07-17-2017, 12:38	#1 (permalink)
CIP&CIOP Freak Poster Join Date: Dec 2006 Location: POMPEI Posts: 246 Member: 405174 Status: Offline Thanks Meter: 18	g920f andorid 7 cert write I tried to make the downgrade but I always get it wrong. Solutions? Log - [Click to open] Welcome to Octoplus/Octopus Box Samsung software version 2.5.5 ----------------------------------------------------------------------------------- To connect SM-J500FN phone you have to perform the following steps: 1. Disconnect USB cable from phone. 2. Go to Menu->Settings->More->About Device. 3.Tap on "Build number" 7 times to enable developer options. 4. Go to Menu->Settings->More->Developer options. 5. Turn on "USB Debugging" option. 6. Go to dial window. 7. Enter "*#0808#" number. 8. Select "DM+Modem+ADB". 9. Press Home button. 10. Press "Read Info" in software. Selected firmware file: G920FXXU3QOLO_G920FXSG3QOL2 _XSG_Android_5.1.1.oct Please put the phone into Download Mode and connect USB cable. To put SM-G920F into Download Mode, You have to perform the following steps: 1. Press and hold "Volume-" + "Home" + "Power ON" keys. 2. When phone turns on, press "Volume+" key. Found phone on Firmware write started. Writing BOOTLOADER section... BOOTLOADER section has been written successfully. Writing Firmware Failed Performed by 2.5.5 Software version. Selected firmware file: g920fxxu2bofl_g920fojv2boee_ksa_android_ 5.1.1.oct Please put the phone into Download Mode and connect USB cable. To put SM-G920F into Download Mode, You have to perform the following steps: 1. Press and hold "Volume-" + "Home" + "Power ON" keys. 2. When phone turns on, press "Volume+" key. Found phone on Firmware write started. Writing BOOTLOADER section... BOOTLOADER section has been written successfully. Writing Firmware Failed Performed by 2.5.5 Software version. Please put the phone into Download Mode and connect USB cable. To put SM-G920F into Download Mode, You have to perform the following steps: 1. Press and hold "Volume-" + "Home" + "Power ON" keys. 2. When phone turns on, press "Volume+" key. Found phone on Firmware write started. Writing BOOTLOADER section... BOOTLOADER section has been written successfully. Writing Firmware Failed Performed by 2.5.5 Software version. Selected firmware file: G920FXXU3DPDR_G920FOJV3DPD7 _XSG_Android_6.0.1.oct Please put the phone into Download Mode and connect USB cable. To put SM-G920F into Download Mode, You have to perform the following steps: 1. Press and hold "Volume-" + "Home" + "Power ON" keys. 2. When phone turns on, press "Volume+" key. Found phone on Firmware write started. Writing BOOTLOADER section... BOOTLOADER section has been written successfully. Writing Firmware Failed Performed by 2.5.5 Software version. Selected firmware file: G920FXXU3DPDR_G920FOJV3DPD7 _XSG_Android_6.0.1.oct Please put the phone into Download Mode and connect USB cable. To put SM-G920F into Download Mode, You have to perform the following steps: 1. Press and hold "Volume-" + "Home" + "Power ON" keys. 2. When phone turns on, press "Volume+" key. Found phone on Firmware write started. Writing BOOTLOADER section...

07-17-2017, 12:46	#2 (permalink)
Octopus box Product Supporter Join Date: Oct 2009 Location: Romania, Bucharest Posts: 99,824 Member: 1146942 Status: Offline Sonork: 100.1587278 Thanks Meter: 27,409	Hello. Unfortunately downgrading is not always possible. On your own risk You can try to downgrade only phone's modem. Currently no solution to write a Cert file for Galaxy S6 phones on Android 7 firmwares.

07-17-2017, 13:29	#3 (permalink)
amleto90 Product Supporter Join Date: Aug 2016 Posts: 2,344 Member: 2613252 Status: Offline Thanks Meter: 1,837	Hi, depends on the version of Android 7 you have as the original stock firmware of the phone, you have to downgrade to version 6.0.1 to the recent security patch version seeing if the binary revision is compatible because otherwise you can not do the downgrade the phone hangs, to do this you have to download the firmware of the same country from Sammobile then use Odin unpacking the firmware in 4 files and upload them to Odin and make the flash note that if The firmware is not compatible with the binary Revisio because of the blocked bootloder you remain locked the phone, finished the whole test to write the certificate or use the patch doing repair IMEI and repair network

07-18-2017, 02:15	#4 (permalink)
shahsoft No Life Poster Join Date: Nov 2014 Location: Pakistan/UAE/WorldWide Age: 26 Posts: 901 Member: 2302076 Status: Offline Sonork: 100.1663298 Thanks Meter: 185	Please tell me the correct 7.0 firmware installed in the phone right now I will help you to downgrade it to 6.0.1 Sent from my iPhone using Tapatalk

07-25-2017, 16:13	#6 (permalink)
amleto90 Product Supporter Join Date: Aug 2016 Posts: 2,344 Member: 2613252 Status: Offline Thanks Meter: 1,837	Hi, try to make the Dowgrade to this version of Android 6.0.1 just downloaded the firmware from Sammobile unzip the file in 4 files and make the firmware flash Security Patch Level 2017-03-01 Product code ITV PDA G920FXXS5DQC1 CSC G920FITV5DQA2

07-26-2017, 11:50	#8 (permalink)
Octopus box Product Supporter Join Date: Oct 2009 Location: Romania, Bucharest Posts: 99,824 Member: 1146942 Status: Offline Sonork: 100.1587278 Thanks Meter: 27,409	You can extract files from an original firmware in 2 steps: 1. Remove .md5 extension. 2. Unzip .tar archive.

07-26-2017, 12:25	#11 (permalink)
amleto90 Product Supporter Join Date: Aug 2016 Posts: 2,344 Member: 2613252 Status: Offline Thanks Meter: 1,837	Hello use this program to unpack the firmware in 4 files below to find the link where to download it and how to do it http://forum.gsmhosting.com/vbb/f777...ndows-1874242/