hello,if you use your own PSU for our power supplies, please notice the output of the PSU, do not let it higher than the input limit of our power supplies, and it is necessory to test if the PSU has stable output, if it has over-voltage peak, it is also not suitable.
Hello, today is the final work day in April, and we will have a 5-Day national holiday, during this time, we do not work, and we do not send packages from our China warehouse, please notice that we will send the package from May 5th
hello, if your RD device is damaged, you can contact us for help, we can see if it can be repaired, sometimes just the fuse burnt, you can replace the fuse and it is ok, and like this customer, the screen is damaged, we send him the screen and video instruction to fix, it is ok