Make sure you backup your data before flashing the Samsung Galaxy S Duos 2 GT-S7582L stock firmware as it will wipe your device.
We, at Androidotics, have provided the flash file here on this page. You can download the flash file from the link below. This file contains only the flash file (.tar). You can use stock firmware to unroot, unbrick and restore your device to factory settings.
What is Stock Firmware?
A Stock Firmware or ROM is an official firmware or software developed by the manufacturer for a specific device. It undergoes some specific changes and modifications by the manufacturers like UI (User Interface), Stock Applications etc. However, a pure stock firmware is the one which does not undergo any changes or modifications by the manufacturer such as Android Firmware in the Google’s Pixel and Nexus devices.
Download Samsung Galaxy S Duos 2 GT-S7582L Firmware
Model name: Samsung Galaxy S Duos 2
File Name: S7582LUBUAOA1_S7582LZTOAOA1_ZTO.zip
Android Version: 4.2.2
* Flashing a new Firmware will wipe your data on your device, it is recommended that you make a full backup of your device first.
* The firmware(s) posted here on this page are official firmware(s) released by Samsung. You can use this firmware to recover your device from startup errors, bootloop, bricked device etc.
How to Flash Samsung Galaxy S Duos 2 GT-S7582L Firmware
Step 1: Download Firmware file from the download section above.
Step 2: Download Odin and extract the contents in the zip archive and save the files on your PC then switch off your device. Then run ODIN.
Step 3: Boot it in Download Mode by pressing and holding Volume Down + Home + Power Button simultaneously.
Step 4: You’ll see a warning screen, press Volume Up to continue.
Step 5: Connect the phone to computer via USB cable and wait for the device to be added by Odin, if no device is detected you need to reinstall the Samsung USB drivers. If your device is detected, you’ll see “Added” message in the message box.
Step 6: On ODIN windows, click on the PDA or AP button, then locate the firmware file that you downloaded and load it in ODIN and click Start Button.
Step 7: Once the installation is complete, you will see the PASS alert and your device will reboot automatically.