After flashing several ROMs, you may need to flash the stock MIUI again. If you are in a need of reverting to stock ROM & Recovery,This will help you to revert back to MIUI [Stock ROM] again on your Redmi 1S
REQUIREMENTS
ORIGINAL ROM : LINK
ORIGINAL RECOVERY : LINK
INSTRUCTIONS
1. Reboot To Recovery. (TWRP/CWM)
2. Select Install Zip.
3. Locate Your Stock Recovery Downloaded From Above.
4. Install It.
5. Reboot.
6. Now Download Latest Version Of MIUI From Above.
7. Place It Your Internal SDCard & Rename It To update.zip
8. Now Reboot To Stock Recovery.
9. Select Language.
10. Now Using Volume Keys Navigate To Install Update.
8. Let It Install The Downloaded MIUI.
9. Now Reboot
10. DONE
2. Select Install Zip.
3. Locate Your Stock Recovery Downloaded From Above.
4. Install It.
5. Reboot.
6. Now Download Latest Version Of MIUI From Above.
7. Place It Your Internal SDCard & Rename It To update.zip
8. Now Reboot To Stock Recovery.
9. Select Language.
10. Now Using Volume Keys Navigate To Install Update.
8. Let It Install The Downloaded MIUI.
9. Now Reboot
10. DONE