It is the 2nd firmware for dropad A8HD tablet. If your tablet is built-in android 2.2, please update it with the first android 2.3 firmware first, or this 2nd firmware won't available on your tablet. If ur tablet has been with 2.3, you can use it directly.
Download the firmware here:
I didn't download it yet. The supplier said it can be upgraded with TF card and instruction was included in the attachment.