Download Android Nougat 7.0 stock firmware PC version for Eachlink H6 Mini TV Box from here or here. Download Android Nougat 7.0 stock firmware SD card OTA version for Eachlink H6 Mini TV Box from here or here. Flash it from PC using LiveSuit v1.11 or from SD card using PhoenixCard v3.09.
Archive: miniH6-public-3Gddr-20181113-update / Eachlink H6 ota-20181122
Model: Eachlink H6 Mini TV Box
Image file size: 487 MB / 680 MB
Platform: AllWinner H6
Image: miniH6-public-3Gddr-20181113-update.img / ota-20181122.zip
Build number: petrel_fvd_p1-eng 7.0 NRD91N 20181122 test-keys
Caution: Please do not update firmware unless you know what you are doing, you really want it or it is absolutely necessary. Firmware updates may occasionally have bad results, like bricking your device, temporarily or permanently. The firmware update process is done entirely at your own risk. Before attempting to update the firmware, back up your data.