R4 made in CHINA !????

Now i study at china . When i took a walk in an electronic market I saw a counter sell r4 . then i bought it. first , after i insert all DAT from official r4 site, it dun work . But after i give the r4 with DAT from it's official site ( r4ultra.com). It works . But something make me still confused right now is . Is STD r4 cheat database work to in this r4 ?SInce this cheat DAT in this r4 all in chinese . can someone help me custom it?

R4 Ultra is not the same as a normal R4, they just stole the name. You'll need to use the software they provide, not the software for the original R4.

then how to upgrade the database?

Get the regular usrcheat.dat file and update in the _system_ folder.

Hmm then how to update only the japanese game , since all new japan game dun updated , and can i edit the cheat from chinese to english ?

Yes. Just get the English database.