if you need to change kernel parameters or the early boot animation. : Reassemble the modified files back into a single update.img file using the repacking function of the Rockchip tools. Put the device into Loader Mode (usually by holding Volume Down while connecting USB). RK Batch Tool to "Upgrade" the firmware. Critical Precautions Board ID Identification
Some bootloaders check signature:
./afptool -pack output_dir update_new.img ./rkImageMaker -RK30 loader.bin update_new.img update_new_signed.img rockchip rk3026 442 firmware repack
, the monolithic firmware image is decomposed into its individual components. Modifying the Filesystem : To change the system, developers often mount system.img if you need to change kernel parameters or
: The Android OS partition, including system applications and libraries. including system applications and libraries.