R52 embedded controller program update does not work

[makinjr]

I am trying to update to latest R52 EC program. I downloaded update program, run it with full batteries and a/c adapter connected and so on... Program restarts and ask few questions. Then it says "updating ....". BUT!
Sometimes nothing happens after that. I have waited for very long time. Couple of times I got "unexpected error" in red window. Thinkpad boots ok when I power off and disconnect a/c and battery. But EC program remains older one.
I need to update since I have some problems with keyboard and new version claims to fix them.
Any suggestions?

[GomJabbar]

Try the diskette version. I know Windows programs sometimes mess with BIOS updates, not letting them install, so I imagine the same would be true of EC updates. Of course you need a floppy drive for the diskette version.

EDIT: One other thing, check the security setting in the BIOS for allowing flashing of the BIOS.

[makinjr]

I do not have USB floppy and do not want to buy one just for this purpose. Any other suggestions?

[makinjr]

Issue solved. UI mode does not work but running update program unattended, like e.g. C:\Temp\76HJ05US.EXE -s -a -s. Program then runs without any user interaction and, most important, updates successfully.