Firmware update for Gratten ADS1102CAL+ oscilloscope

[Sergo]

Hi all   
Help please I wanted to update my device.
I've been looking for firmware for Gratten ADS1102CAL+ for a few days now.
I wrote to the manufacturer and suppliers of different countries, they do not answer me.
 I tried to upload the results from other oscilloscopes, but the problem is that my oscilloscope does not open the flash drive, but just gives an error if it does not find the right one.
The chip is installed Cyclone® IV EP4CE10 FPGA.
Photo attached:

[tv84]

No need to open a new thread. There are some threads in this forum that detail this precise matter.

BTW, if you specified the FW version that you have, probably someone could immediately tell you that there is no newer FW.

Be careful when dealing with that device as it's easily "brickable".

[Sergo]

Thank you for your reply
I tried to upload other firmwares, but it didn't work I ordered a programmer to try to get a dump
Can you please tell me how to find the place where I need to connect the usb ttl?
My board is like this (open.jpg)

Software Version 1.08

Hardware 1.00

Product Type ADS11023CAL+

Serial NO. 111020S1403103596