DSO4254C USB issue

krjdev

Hello,

Last week I tried to update the firmware of the oscilloscope.
I tried it with two different USB sticks. Both sticks are formatted and works on my other systems.

1. Stick (USB 3.0):
No response from the oscilloscope.

2. Stick (2.0):
You can see the behavior on the following link on my homepage:
Video from the USB issue

I didn't use any USB features (Save screenshot to USB stick, etc. ) before.

Faulty oscilloscope?

Thanks in advance!

krjdev

I have tried a third USB Stick (8GB) and the DSO recognize the stick.
But still running into a problem. The firmware upgrade always fails with error code -3.
I have also tried to format the stick with DiskGenuis. But didn't help.

krjdev

Yes, saving files on USB stick works.

Checksum of the firmware file which I downloaded:

SHA-256

1. $ sha256sum dso4kb_20190701.upk
   
2. 266e9dd526edb3ff560166dcfc6d30a0140ff98552a3c05c6db1971a44d5fada  dso4kb_20190701.upk

Copy the Code

MD5

1. $ md5sum dso4kb_20190701.upk
   
2. 757383bfde4f936954a10a13321cb111  dso4kb_20190701.upk

Copy the Code

Related to my post https://www.eediscuss.com/forum.php?mod=viewthread&tid=14947, can you also attach the firmware file?
Maybe there is a problem with my Internet connection.

krjdev

Okay, the update was successfully.

I have placed the ZIP file on the USB stick and extracted the firmware folder. -> Success
Before, I placed only the UPK file on the root directory of the stick. -> Failed with error code -3

Seems that the UPK file must placed in a folder. Can that somebody confirm?