DSO3254A does not recognize USB.

amy

hjlee@leolsi.com replied at 2018-3-9 11:49
I did not understand exactly what you said.
Give me a sample picture and I'll send it.

Sir, please check these indicators when you connect it to your computer.

hjlee@leolsi.com

It seems that only power is on.

amy

hjlee@leolsi.com replied at 2018-3-13 11:16
It seems that only power is on.

Sir, it may be the program failure or hardware failure.
I will send a manual and tools to program to your email.
You can try it by yourself.
If you can't do it yourself, please contact your seller to return factory for repair. Thanks.

PlusPlus

I am having this exact same problem with my DSO3254A.  How can I fix it?

amy

Prepare a 4G SD card and a Windows XP, and refer to this to operate:

https://www.dropbox.com/s/3qqj3w ... %20program.zip?dl=0

Tisiem

Hello,
I had the same problem with a 3254A: the windows detected the oscilloscope in the Device Manager, but it couldn't communicate with it.
This happened all of a sudden after using it ~6 month.

Tried the solution above, now the oscilloscope is not detected at all by windows.
When powering up the oscilloscope, all the 4 external led flash at high intensity then stay at mid intensity. The 2 leds on the board stay on.
Any other solution?
Thank you.

hhc425163

Hello,
I had the same problem with a 3254A，too: the windows detected the oscilloscope in the Device Manager, but it couldn't communicate with it.

hhc425163

amy replied at 2019-6-28 11:36
Prepare a 4G SD card and a Windows XP, and refer to this to operate:

https://www.dropbox.com/s/3qqj ...

this link can not open, may you send me a new copy ?   I meet same problem and  my emai is : hhc425@163.com

hhc425163

amy replied at 2019-6-28 11:36
Prepare a 4G SD card and a Windows XP, and refer to this to operate:

https://www.dropbox.com/s/3qqj ...

thanks, follow your email, I have fix my DSO3254A successfully.