djmuted

Sorry for double posting, I found some source code for that EA6521QF WiFi kernel module here: https://github.com/TinkerBoard-Android/rockchip-android-external-wifi_driver in ea6621q directory (version 2.0.240304.e998adb) I managed to compile it and it works. Place the .bin files in /lib/firmware and place the .ko modules in /lib/modules/4.4.194-rk322x/kernel/net/wireless Change permissions of all these files to 664 and chown root:root. Add these lines to the end of /etc/modules skw_sdio skw_bootcoms skw Run depmod -a and reboot. These modules were compiled for the legacy kernel, they will not work with anything else (however you should be able to build these modules from source for newer kernels). Tested on this Armbian build: https://users.armbian.com/jock/web/rk322x/armbian/stable/Armbian_22.02.0-trunk_Rk322x-box_bullseye_legacy_4.4.194_minimal.img.xz No changes to the device tree are needed. EA6521QT_SEEKWAVE_R00005.bin EA6521QF_SEEKWAVE_R00005.bin EA6621Q_SEEKWAVE_R00005.bin EA6621QT_SEEKWAVE_R00005.bin RAM_RW_KERNEL_DRAM.bin ROM_EXEC_KERNEL_IRAM.bin skw_bootcoms.ko skw_sdio.ko skw.ko

Looks like I got really unlucky and received an unusual version of the MXQ PRO 4K (5G version). It has a weird WiFi chip called EA6521QF. I could not find much about it online. My stock Android ROM contains the following kernel modules: 8189es.ko, 8723cs.ko, rk29-ipp.ko, ssv6051.ko, 8723bs.ko, 9012p.ko, skw.ko, ssv6x5x.ko, vcodec_service.ko, ssv6558.ko, skw_sdio.ko and 8189fs.ko If anyone is interested, I can provide a MultiTool eMMC backup. EDIT: I found some firmware files for that chip in the stock ROM as well: EA6621QT_SEEKWAVE_R00005.ini, EA6621QT_SEEKWAVE_R00005.bin, EA6521QF_SEEKWAVE_R00005.ini, EA6521QT_SEEKWAVE_R00005.bin, EA6621Q_SEEKWAVE_R00005.bin, EA6521QF_SEEKWAVE_R00005.bin, EA6521QT_SEEKWAVE_R00005.ini, EA6621Q_SEEKWAVE_R00005.ini Looks like skw.ko and skw_sdio.ko are the kernel modules for this chip. I'll try to load them under the legacy kernel later and share the results.