I’m no Pi expert, in m y experience the real error is usually either at the beginning or the end of the dump.
I googled 0x00007f00 and you’re not the first to get it, This link pointed to a missing library so maybe you are on the right track with the corrupted SD.
I’d try a new SD card with the up to date build, that will probably work. If it does then you can try using a USB gadget to load the old card and you may be able to import your old data, depending on how corrupt it was. Definitely try this before setting up a load of new input etc.
