The firmware I originally had was 24.07.07, but it wouldn't play recordings properly. So I flashed 241226 and 241217. After flashing, both the black screen devices failed to boot.
Later, I told them about🍑The seller requested the latest firmware, but the firmware version 260724 replaced the display screen. After I flashed the new firmware, the device turned on, but the screen was displaying distorted images.