Flashing custom firmware and mods can void your device's warranty and potentially brick your device. Proceed at your own risk, and make sure to follow the instructions carefully. We're not responsible for any damage or issues that may arise from using WindDC or flashing custom software.
| Error Code | Meaning | Solution | |------------|---------|----------| | E:1004 | USB handshake timeout | Re-enter Download Mode, use USB 2.0 port | | E:2021 | Driver access denied | Run WindoDC as SYSTEM (PsExec tool) | | E:9901 | Partition write protected | Use --force flag (can trip Knox) | | B0:12 | Bootloader mismatch | Re-flash correct combination firmware | | SMC_FAIL | Secure world rejection | Need engineering bootloader for S23 series | tutorial winddc samsung pdf exclusive
Option B — Using a PDF tool (recommended for more control): Flashing custom firmware and mods can void your