Procedure to Update MIUI v10.2 2.3.23 Custom Firmware in Samsung Galaxy SL I9003:
- Download the MIUI v10.2 2.3.23 Firmware Zip package from here to your computer and then connect your device with the computer using the Official USB cable.
- Copy the zip file in your phone’s SD Card. Ensure that you are not placing the file deep into the sub folder.
- Now, remove the connected phone and turn Off so that the device can be entered in the recovery mode.
- The recovery mode can be entered by pressing the Volume Down Key + OK button, and holding both simultaneously press the Power Button. You can also refer to the video below to know more on how you can enter into the recovery mode. If the phone boots in the normal mode then you need to try entering again into the recovery mode.
- In the recovery mode, you need to select “install zip from sd card” > “choose zip from sd card” and then choose the MIUI v10.2 2.3.23 Firmware Zip package which is placed in the phone.
- Once the update process is completed, the device will again land back to the recovery screen. In the recovery screen, select “++++ Go Back ++++” and then choose the option of “reboot system now” for rebooting the system. If the phone refuses to show the home screen even after 5 minutes of restart, you need to then reinsert the battery.
Tip: Just in case if due to some reasons if the update process gets failed or interrupted, then you need to apply the update again by following the steps again from the start. Don’t forget to restore the backup which you have taken in the initial steps.
Congratulations, you have now successfully applied the update of MIUI v10.2 2.3.23 Firmware In your phone. Do let us know in the comments section just in case if you face any issues as we will try our level best to sort out the same.

