Look for generic "MXQ_RK3229_V31_eMCP" firmware files.
Flashing will wipe all apps, logins, and local files. Where to Find the Firmware Link mxq rk3229 emcp v31 firmware link
Finding official firmware for generic TV boxes like the MXQ Pro 4K (RK3229) is challenging due to the numerous board revisions. The Look for generic "MXQ_RK3229_V31_eMCP" firmware files
Because these firmware files are hosted on community repositories and cloud drives, always scan downloaded archives for malware before opening them. 1. Official Rockchip Flashing Tools mxq rk3229 emcp v31 firmware link