Forgot to make tihs point as well.Didn't work for me it keeps saying no such file.
you may need to just rename the file to "update". Its already a zip file, so renaming it to "update.zip" actually makes it update.zip.zip......
If you don't see a .ZIP extension at the end of the file DO NOT add one. Only add the .ZIP on the end if there was one before.
Yup. To clarify why this is true, if the extensions are hidden; adding .zip to the end of the filename will cause the file to be named "update.zip.zip", thus when it searches for "update.zip" it will be unable to find it.