Insert the drive into the TV's USB port (preferably USB 2.0).

If you are looking for this specific multi-part RAR file because your TV is currently non-responsive or requires a manual USB recovery, the following resources may assist:

: Technical documentation and troubleshooting guides for the HK.T.RT2851V09

kivi 55u730gu main hk.t.rt2851v09 trouleshooting - Elektrotanya