#
#Step1: Download rkdeveloptool
# For aarch64 FreeBSD-13.1-RELEASE
# wget https://personalbsd.org/download/Packages/rkdeveloptool.tgz
# pkg add rkdeveloptool.tgz
#
root@dell:~ # rkdeveloptool -v
rkdeveloptool ver 1.32
root@dell:~ #

#Step2: Connect NanoPi-R4SE to PC and Enter Installation Mode
#1) Disconnect the connected USB cable and the power cord from NanoPi-R4SE, eject the TF card;
#2) Press and hold the “Mask” key, power on the board. After the status LED has been on for at least 3 seconds, release the Mask key.
#3) Use a USB A-to-A cable, connect NanoPi-R4SE to a PC as follows. 
#   Note: please pay attention to the USB port the USB cable is connected to in the screenshot
# https://personalbsd.org/download/Business/Nanopi-R4SE-usba-to-usba.jpg

#Step3: Write image to eMMC flash

rkdeveloptool ld
# DevNo=1	Vid=0x2207,Pid=0x350a,LocationID=104	Maskrom

# Erase flash
rkdeveloptool ef

# Download the loader (flash helper) to init the ram 
# and prepare the flashing environment etc.
# If you don't have it, you can download it from here

# For R4SE
# wget https://personalbsd.org/download/Business/rk3399_loader_v1.27.126.bin
rkdeveloptool db rk3399_loader_v1.27.126.bin

# For R5S
# wget https://personalbsd.org/download/Business/rk356x_spl_loader_ddr1056_v1.06.110.bin
rkdeveloptool db rk356x_spl_loader_ddr1056_v1.06.110.bin

#TestDevice:
rkdeveloptool td

#EraseFlash:
rkdeveloptool ef

# Write the GPT image to eMMC, start to write from offset 0. 
# For example.
# OPNsense For R4SE
# wget https://personalbsd.org/images/OPNsense-22.7-OpenSSL-aarch64-NanoPi-R4SE-20220825.img.xz
# unxz -T0 OPNsense-22.7-OpenSSL-aarch64-NanoPi-R4SE-20220825.img.xz
#
rkdeveloptool wl 0 OPNsense-22.7-OpenSSL-aarch64-NanoPi-R4SE-20220825.img

# Reboot the device
rkdeveloptool rd