SAMSUNG COMBINATION DETAIL EXPLANATION




WHAT IS COMBINATION

Samsung combination files we basically used for testing purposes in the Samsung mobiles. Another basic function of these combination is to make sure that the functionality of your device could error free before making its final release. These files are produced by Samsung company and could be used for the specific devices of Samsung for those devices/model are this combination files are produced for. Combination is factory created file which is uses for the repairing purpose. In this file all the securities of firmware are removed so that phone could be repaired easily. You can also says that this firmware is a beta version of any firmware which coder use to test their devices for the final release of the firmware.

ADVANTAGES OF COMBINATION
This file often use for repairing of
  1. Baseband of your Samsung Mobile  
  2. DRK (Device Root kit.
  3. DM variety, 
  4. Pattern lock, 
  5. Factory reset protection frp, 
  6. User code, 
  7. For country unlocking 
  8. Repair any other issued which occur while flashing. 
  9. With this file problem could be traced easily.

HOW TO UNDERSAND WHAT IS THE COMBINATION LETTER STANDS FOR:

Samsung COMBINATION Letter Codes To Check COMBINATION Compatibility
COMBINATION Build Number Released

*******************************************
COMBINATION_OXA_FA60_J710FXXU1AQB3
*******************************************
OXA=CSC build
*******************************************
FA70=Android 7 Nougat
FA60=Android 6 Marshmallow
FA51=Android 5.1 Lollipop
FA50=Android 5.0 Lollipop
FA44=Android 4.4 KitKat
FA43=Android 4.3 Jelly Bean
FAJP=Android Jelly Bean
FTMA=Tizen OS
*******************************************
O=2015
P=2016
Q=2017
*******************************************
A=January
B=February
C=March
D=April
E=May
F=June
G=July
H=August
I=September
J=October
K=November
L=December
*******************************************
1=Revision 1
2=Revision 2
3=Revision 3
4=Revision 4
5=Revision 5
6=Revision 6
7=Revision 7
8=Revision 8
9=Revision 9
A=Revision 10
B=Revision 11
C=Revision 12
D=Revision 13
E=Revision 14
F=Revision 15
*******************************************
So how we define this combination letter

COMBINATION_OXA_FA60_J710FXXU1AQB3

OXA_ (CSC) Consumer Software Customization 
FA60_ (ANDROID VERSION (MARSHMALLOW 6.0)
J710F_ Model of the device 
XX: (Country)
U1: Binary 
AQB3 = 2017 – February– Revision 3

I hope you understand this combination file and now its time to verify which combination is suitable for my device.


HOW TO SELECT THE COMBINATION FILE FOR YOUR MOBILE 

What you have to do if your mobile is working normally you can check all these information from the setting>about. But if your mobile is not working properly or in a problematic state you can also verify these information from recovery menu
You can go in this menu by this method:
  • Turn you mobile off.
  • Wait for few second.
  • Press this combination of keys (Volume up + Home + Power) 
  • If you see an android logo then you are in recovery mode wait for few second to load it properly.
  • Now you in recovery mode.


In this picture what combination you need to flash this phone

COMBINATION_XXX_FA70_G950FXXU1AQD1

Some Time revision does not matter but only the binary version (U1) is compulsory for your phone.
After installation of combination your phone will boot normally in factory mode. All the securities of the phone are disabled. Now you can unlock it's bootloader (Oem Lock) and can also enable developer mode (ADB) to unlock you devices pattern, user code, Factory reset protection, Country lock. etc.

After completion of your desire task (Remove locks etc) you have to write your firmware of same binary Revision and android version. if your oem is unlocked you can also downgrade in some phone (but it might be risky) You phone can be in soft brick. In new models Samsung has blocked down gradation. So if you are going to do it search on internet that your mobile is compatible for down gradation or not.

HOW TO CHECK YOUR BINARY FROM DOWNLOAD MODE

If your handset have some serious problem and could not go in recovery mode then you have an other option to check these information from. Put your phone in download mode, The method is simple as recovery
  1. Turn your mobile off 
  2. Wait for few second. 
  3. Hold these combination of keys (Volume Down + Home + Power) 
You will see the picture of Android logo, and for verification to press volume up or down to verify either your enter this mode by accident or intentionally you have to verify it by pressing volume keys either you agree to enter in download mode.
Here we go you are in download mode.



EXPLANATION OF THIS PICTURE 

In this picture i have highlight RP SWREV:B:3 K:3 S:2 these letter also indicate the same information which we already discuss above in recovery and combination part. In these picture SWREV stand for software Revision B:3 mean the Binary 3 mean (U3) K2 Stand for November Revision. In this download picture the oem lock in setting are not ON that's why you can't downgrade your phone. And the Red line letter check fail shows that this guy is flashing the wrong firmware. He is trying to flash this phone with Binary 2, and because this phone secure download is enable that's why this error message appears while flashing with wrong firmware. For flashing this phone he must have to flash Binary U3 and revision November OR upgraded file mean U4,U5, U6 so on to successfully flash this phone. 

DISCLAIMER

All these information is just for knowledge and you must have the professional knowledge of flashing otherwise the service center or professional people who knows these things better, are the best option to service your mobile. I will not held responsible if you mess up your mobile firmware or you have brick your phone or any thing goes wrong with your mobile. Because every letter of this combination is stand for some thing that matter a lot to service your phone. If you are not sure or suspicious about any thing, don't interfere in this matter (Please)
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