devo10 displays incorrect characters

Hi PB, I download a test version of deviation10 with my own codes into my devo10. By copying the whole filesystem to the devo10 afterward, it does show words as I expect.
However, after I flash walkera's dfu and lib (DEVO-10 Fw v0.6A.dfu, DEVO-10 Lib v0.2.dfu) back to the devo10, it just displays unrecognized font/character though it still works as before.
Do you know how do I restore the devo10 with correct font/characters?

Here is the picture of the test version It is a good start. But I just want to have the option to flash back Walkera's firmware before a workable deviation version of devo10 is released.
Thanks in advance

Thanks FDR, everything is fine with my devo 10 now

Hey, suvsuv, you here as well

Hi Richardli, I saw your check-in Chinese font into the deviation trunk for devo 8 already, good for 5imx's devo users .

Hopefully, we can have a devo10 release as most Chinese users own devo10 more than devo8

Yes, I myself owns a Devo 10 as well, but I rather prefer an English interface, ha ha