According to HiBy Music, HiBy FC4 portable amp decoder has firmware update V1.6. After this update, it supports automatic adaptation of different versions of chips; supports USB HID DFU upgrade; fixes some problems.
Haibei FC4 uses a 28nm low-power chip, supports 416M high-performance audio dedicated DSP, is equipped with dual DACs, 2 pieces of ES9218PC chips, and one chip for each left and right channel is responsible for decoding. The front strip RGB indicator can display the color according to the sampling frequency of the current playback. Supports 3.5mm and 4.4mm two-headphone jack designs. The volume adjustment button is set on the side, and the package is equipped with a USB-C to USB-C cable and a USB-C to USB-A cable.
According to HiBy Music, in order to support the FC4 firmware upgrade, users need to download and install HiBy DFU TOOL for firmware upgrade. You can click the link to download the tool (cloud disk extraction code: HIBY), or you can go to www.hiby.com (Service and Support) Download (FC4 Firmware and Upgrade Tool).
Here's how to upgrade?
Download and install HiBy DFU TOOL on the computer, unzip it and click [c_sharp_hid_ui.exe] to open the software;
Local upgrade: Open HiBy DFU TOOL in the computer, and connect FC4 to the computer through the data cable, wait for the upper left corner.
FC4 appears in the information bar, click (OPEN) to open the decompressed (FC4 1.6) folder, click (fc4_v16.bin), click (Download), and wait for the progress bar to finish, after the progress bar is completed, it will prompt "done";
Online upgrade: Open HiBy DFU TOOL in the computer, and connect FC4 to the computer through the data cable, wait for the
FC4 appears in the information bar, click [check] to detect the device version on the HiBy server and prompt whether to download and upgrade, click [Download] to download to the local and automatically upgrade, wait for the progress bar to finish, and it will prompt "done" after the progress bar is completed.
If the computer cannot recognize FC4, please go to www.hiby.com (Service and Support) to download (Computer USB DAC IN Driver), or consult the after-sales customer service to provide the installation package.
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