1The following instructions will help you to flash partition table and 2prebuilt bootloader onto Poplar board. 3 4* Find a USB disk formated with FAT file system, copy fastboot.bin and 5 recovery_files/ folder onto the disk. 6 7* Attach the USB disk to USB port J2 (next to IR receiver), and power on 8 Poplar board with button S3 (USB_BOOT) pressed until following 9 messages are seen on serial output. 10 11 Entry usb bootstrap 12 13 Usb disk(1): 14 Decrypt auxiliary code ...OK 15 16* Hit any key to stop U-Boot autoboot and get into the prompt. 17 18* Run U-Boot commands below to install partition table and bootloader. 19 20 poplar# usb reset 21 poplar# fatload usb 0:1 ${scriptaddr} recovery_files/install.scr 22 poplar# source ${scriptaddr} 23 24These instructions are only necessary for initial bootloader 25installation or board unbricking. Once the initial installation is 26completed, you can update bootloader with fastboot support as below. 27 28* Connect Poplar (USB port J2) to PC with a Male-to-Male USB cable. 29 30* Power on Poplar, get into U-Boot prompt and run command below. 31 32 poplar# fastboot 0 33 34* On PC side, run command below to update the bootloader. 35 36 $ fastboot flash mmcsda1 loader.bin 37 38To install the AOSP images, use fastboot commands as below. 39 40 $ fastboot flash mmcsda2 boot.img 41 $ fastboot flash mmcsda3 system.img 42 $ fastboot flash mmcsda5 vendor.img 43 $ fastboot flash mmcsda6 cache.img 44 $ fastboot flash mmcsda7 userdata.img 45