If the LCD is shattered but the motherboard works, remove the screen entirely. Install a custom ROM (LineageOS) and use in build.prop to disable the display. Connect via ADB or use it as a dedicated USB DAC for your PC. This bypasses the "lcd repair v20" cost entirely.
Before you completely glue and screw the phone shut, connect the battery and turn on the phone. Test the touch functionality across the entire screen, check the LCD for dead pixels, and ensure the front and rear cameras work. lcd repair v20
Ultimate Guide to Go to product viewer dialog for this item. LCD Repair: DIY Screen Replacement Despite its age, the If the LCD is shattered but the motherboard
(typical for v20)