CYDnote Web Flasher

Seamless flashing flow for ESP32-2432S028/R (CYD).

1. Install Firmware

Select how to update your CYD device.

Preserve DataUpdate firmware, keep LittleFS. Full RestoreWipe all data & format filesystem.

Build TimeChecking…

API RouteChecking…

Asset RouteIdle

Ready to flash.

Optional data clone tools before you flash.

Backup LittleFSSaves user data partition. Backup Full FlashEntire 4MB raw clone.

Current backup range: LittleFS.

Ready to back up.

Select Backup File

Choose a backup file to restore.

If auto-download mode fails, firmly hold down BOOT button while connecting.
Do not use Preserve Data if migrating between functionally different partition layouts.