Download the DVR Device Manager
The DVR Device Manager software (A.K.A. DVR boot logo changer) allows you to manage your H.264 DVR based on HiSilicon Chipset to upgrade the device firmware and change the splash screen by replacing the main logo.
The software is Free, click the link below to download it.
This software usually works with H.264 DVRs using the following chipsets Hi3520A, Hi3520D, Hi3521, Hi3521A, Hi3531, Hi3531A, Hi3535, Hi3536.