Firmware archive for the HP t640 thin client, motherboard 6050A3048701-MB, marked OK and tested, in a 4.78 MB RAR. The 6050A numbering belongs to Inventec, whose codes appear on the PCB. The contents can be used to recover a thin client that powers on with no display or will not boot after a failed update, by reprogramming the SPI flash. Confirm the board number matches, back up the original chip first, and make sure the image size fits the flash capacity.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @hrtechno. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
7-ZipWinRARThe Unarchiver (macOS)