I think you don't want install FW with paper clip because lost data then if you can connect to box via adb try
https://adbshell.com/upload/adb.zip
A.
adb connect <ip_player>:5555
adb shell am start -n com.android.settings/.Settings
B.
Get any launcher apk like
Nova Launcher then install from adb
adb connect <ip_player>:5555
adb install com.teslacoilsw.launcher_6.2.6.apk
adb shell input keyevent KEYCODE_HOME
(adb shell input keyevent KEYCODE_APP_SWITCH)
C.
scrcpy to connect via network to your box
adb connect <ip_player>:5555
start scrcpy-noconsole.exe --serial <ip_player>:5555
then drag&drop to scrcpy console com.teslacoilsw.launcher_6.2.6.apk after a while press HOME(ctrl+h).