How to change Global to Chinese

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2018-06-27 12:08

Hi all, I bought M5Note M621H 16GB/3GB version, previously on my M3Note M681H I was able to flash any rom like G or A there were no issues, now the problem is this M621H came with Global rom installed I tried to update with 6.1.0.0A / 6.7.0.2A but it gives me firmware error, so can someone help me install chinese rom on M621H?
When the phone came there was some file called update_GL_signed.zip in the phone root directory.