Isseu with utf8mb4 and chinese file names


Dear all,

I am still fighting with the issue of utf8mb4.
As a matter of fact i reinstalled the whole system more then once but I am still unable to upload file with chinese character in the name.
Now all my DB is set for utf8mb4 but still have the issue, here below the environment I am dealing with:

Database server
Server: Localhost via UNIX socket
Server type: MariaDB
Server version: 10.1.23-MariaDB-9+deb9u1 - Raspbian 9.0
Protocol version: 10
User: owncloud@localhost
Server charset: UTF-8 Unicode (utf8)
Web server
Apache/2.4.25 (Raspbian)
Database client version: libmysql - mysqlnd 5.0.12-dev - 20150407 - $Id: b5c5906d452ec590732a93b051f3827e02749b83 $
PHP extension: mysqliDocumentation curlDocumentation mbstringDocumentation
PHP version: 7.0.30-0+deb9u1

Anyone can help?
Thanks so much in advance,




I think you forgot to mention on what oC version your are