Kt20-y-multi-v2.0 Update May 2026

Physical expansion hats/modules for the KT20-Y used to require a full reboot. V2.0 introduces hot-plug capability on the UMB ports. The device now re-enumerates I2C, SPI, and UART peripherals on the fly, with automatic power gating.

Q: Does v2.0 erase my historical data?
No – internal flash data partition is preserved. However, always keep a backup.

Q: Can I skip v1.9 and update directly from v1.5?
No. Update first to v1.8 or v1.9 (intermediate update required). Contact support for special bridging image. kt20-y-multi-v2.0 update

Q: How long does the update take?
Typical: 2–4 minutes. If longer than 10 minutes, power cycle and retry.

Q: Will my SCADA integration break?
Existing Modbus registers and MQTT topics remain unchanged. OPC UA endpoints are new and optional. Physical expansion hats/modules for the KT20-Y used to

Q: Does v2.0 support OTA updates for future patches?
Yes – partial OTA (delta updates) will be available from v2.0 to v2.1+.

Choose the method suitable for your deployment. Choose the method suitable for your deployment

Downgrade warning: There is no official downgrade path from v2.0 to v1.x due to filesystem structure changes (ext4 → UBIFS with F2FS overlay). Plan a maintenance window of 2-3 hours for full validation.