Remember-
- Make sure you have take backup of your contacts and apps before proceeding to downgrading method.
- Install Samsung USB Drivers on your system.
- Enable USB debugging options, if you are using slim bean then go to Settings > About and press the build number few times.
- Also Fully charge your Battery.
- and Most Important, You can proceed with this method at your own risk, We are not responsible for any damages of your devices.
BTW, I tested this method on my samsung galaxy note device, I downgraded my note firmware from Slim Bean Android 4.2.2 build 8 to Android 4.1.2 Jelly Bean.
Downgrade Android Firmware from Custom ROM
Step 1:- Download desired firmware file that you want your device to downgrade. Download it from
Samsung Updates and then extract it on your desktop.
Step 2:- Now, Download and unzip odin flash file on your desktop, Download
Odin3_v3.04.Zip if you want to downgrade or install a new firmware like Jelly Bean and download
Odin3_v1.85.Zip, to install older firmware.
Step 3:- Switch off your Samsung device and boot up into
download mode by pressing and holding the
volume down + Home + Power buttons simultaneously.
Step 4:- Go to Odin folder and
run odin exe file.
Step 5:- Now Connect your samsung device to the computer using a USB cable.
Step 6:- When the device connected to computer, the
ID:COM port at odin will turn to
light blue(If using odin v3.04) or
Yellow(If using odin v1.85) and
Added!! text in the message box below.
Step 7:- Now,
Uncheck Auto Reboot Option and make sure that only
F. Reset Time option is checked on Odin windows.
Step 8:- Now click on the
PDA button and select the
firmware file in tar.md5 format and then click on the
Start button. The downgrading process will take few minutes.
Step 9:- When you get a
PASS message on odin windows,
remove the USB Cable
Step 10:- Now
Pull out your samsung device
battery and wait for about
60 seconds and then
reinsert battery back to its place.
Step 11:- Now
Boot your device into
Android Recovery Mode. For this press and hold the
Volume Up + Home buttons together and then hold the
Power button till the
screen turns up and the
Samsung logo blinks for two times. Release the
Power button but keep the other two keys pressed till you see a
black screen with green Android bot and Blue text.
Step 12:- In the Recovery mode, first select the
wipe data/factory reset option and select
yes to confirm it.
Step 13:- Now go to
wipe cache partition and confirm it.
Step 14:- finally, go to the
reboot system now options to boot on your actual android Firmware. The Booting process may take few minutes.
How to install Android os pre-rooted on Pc! GenyMotion