Check the listing for details. Replacement Monochrome LCD Screen for Elegoo Saturn 1st Gen [Used - Functional]. Condition: Used. Listed at 49.99 USD. Pre-Owned with Warranty-> backed with 30-day warranty by our store - you will have a FULLY FUNCTIONAL UNIT OR YOU GET FREE REPLACEMENT (parts/units). It was inspected to be working order. * It's common the back side (downside) of the screen has white rubber/glue textured residue as shown in the picture - they can be cleaned/rubbed off.*Screen only - please apply black electric tapes after installation.Special notes on 1st Gen Elegoo Saturn: Saturn 1st Gen require re-flashing firmware after the replacement. Please double check on Elegoo official website and Reddit community on the details & tutorials. This Youtube video is recommended - please watch: https://www.youtube.com/watch?v=_3GWJoCKy-4How to determine the LCD screen you have on your 1st Gen Saturn:https://www.elegoo.com/blogs/3d-printer-user-guide/saturn-firmware-updating-guideFirmware for the 1st Gen Saturn LCD Screens (choose 1 out of the 3 versions of PJxxxV5/PJxxxxL/TM):Firmware Updating Guide: Click to viewPJ L Screen: Click to download: V4.4.3-Z1_LCDZ/3840X2400/F14.24-link 1 or link 2 - Google DrivePJ V5 Screen: Click to download: V4.4.3-Z1_LCDZ/3840X2400/F15.26-link 1 or link 2 - Google Drive ( If there is a line in the middle of the LCD screen, please rollback the firmware to F15.24: Click to download-link 1 or link 2 - Google Drive)TM Screen: Click to download: V4.4.3-Z1_LCDZ/3840X2400/F2.18-link 1 or link 2 - Google Drive