Eight (8) years ago I used the TS-7558 as a remote data logger. Worked fine. Today, I found it in a box and took the SD card out to examine the contents and make copies of the program I wrote to do the logging. And now, I can't seem to get the SD card back in. And I remember fondly having the same discussion eight years ago. Am I daft?
Best of luck!
Thanks, I finally figured it out (along the lines you noted). What made it extra difficult is that one of the tiny tabs that the card slips under on the gate was bent and wouldn't let the card slide into the gate. All fixed. But it won't boot. It behaves as if there was no card installed. So... bad card or something else. I have a new bootable card on order now.