Remove password Queclink Gv300w

I bought several GV300W units, but the password was not gv300w. I already tried the password they gave me, and it is not correct. Is it possible to crack it, or do you have the firmware for model/revision: GV300W R01A01?
Software: A01V10
Full firmware: GV300WR01A01V10M1024_ESM_SIRM
When I try to upload the firmware I have, I get this error: “FAIL, Rsp reply nothing! [Send_Dmss_Cmd_Go]