> The U-Boot file can be obtained from the following path: device\hisilicon\hispark_taurus\sdk_liteos\uboot\out\boot\u-boot-hi3516dv300.bin.
2. Burn the U-Boot file by following the procedures for burning a U-Boot file over USB.
Select the U-Boot files of corresponding development boards for burning by referring to [Burning to Hi3516D V300](https://device.harmonyos.com/en/docs/documentation/guide/ide-hi3516-upload-0000001052148681)/[Burning to Hi3518E V300](https://device.harmonyos.com/en/docs/documentation/guide/ide-hi3518-upload-0000001057313128#section93591711580).
Select the U-Boot files of corresponding development boards for burning by referring to [Burning to Hi3516D V300](https://device.harmonyos.com/en/docs/documentation/guide/ide-hi3516-upload-0000001052148681).
3. Log in to the serial port after the burning is complete.