Magicsee n5 wifi bluetooth display

Hello i installed coreelec on magicsee n5 but some elements its not works:
2GHz not connect to network. returned error
5GHz connect but its slow and disconecteted after some time
completly not work

i used DTB - gxl_p212_2g

Black screen i installed OpenVFD Service and use but completly not work only black screen

Any help

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