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Trying to edit Serial Device from computer

This might be a no-brainer, but I've been looking everywhere for some kind of response on this topic. I have a serial device and to edit the basic file that is on it, I have to put it manually into download mode and re-download the entire file. However there is only 1 line we want to add to the .sys file on the pinpad, and I have been looking for a way to do this without having to put it in download mode. If you use the editor on the pinpad itself, you can just add the line (it says its in the directory mnt/sram/config.usr1...

Is there anyway to access this from the computer? It's on COM1 and I've looked everywhere, so at least put an end to my search!! Thanks!

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Rob Williams

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scorpio333

"From here you are pretty much on your own. You may be able to communicate with the device or you may have to further tweak the connection properties such as ASCII set up, and emulation type. The final tweaking, and how to control the device, assuming it is possible, requires documentation for your device"

hi , is there a method for communicating with a verifone vx510 pos device via rs232 ,if yes , what are the commands etc , that i can use for copying files from the pos to a windows pc , for example if i want to read the files stored on its flash drive