REPORT 1:
I have tested rooted update.zip. Unfortunately, It is unsuccessful, after updating, Serial/SKU is unknown, wifi and e-ink app don't work.
Issue suandr is OK, but ash is unknown. No directory or file except Toolbox! and can't change to any dir.

Restore golden update fix the problem, I am back to original state.
Note: Local Backup do backup the Library list but no actual file backup.

I found original update @ http://www.entourageedge.com/support...1.0/update.zip
Will try to use it next time failure.