BU04 INIT FAILED

Sorry, i dont know chinese so i tried to use translater but i just thought that writing as english is a lot better to express.


i've bought the BU04 on board model and i'm using it with esp32 s2 through uart(rx,tx).
i succeeded at communicating with serial monitor, but after i tried to set SETCFG, i just throwing INIT FAILED.

AT+SETCFG AT+SAVE -> as one line, it dosen't show INIT FAILED, but i does not save changed information.
AT+SETCFG ->

setcfg ID:1, Role:1, CH:1, Rate:1
21:14:52.219 ->
21:14:52.219 -> OK
21:14:52.219 ->  INIT FAILED INIT FAILED....

setcfg ID:0, Role:1, CH:1, Rate:1
21:14:52.219 ->
21:14:52.219 -> OK
21:14:52.219 ->  INIT FAILED INIT FAILED....

i can't type anything.

if i don't change the ID(65535),it successfully saves information but it does not communicate each other.
i dont know whats the problem

Are you using a module or a development board?

I have the same problem, I bought a module on Aliexpress (3 pieces)

getver software:V1.0.0

OK

ok, i find it, just connect + to VDD1

But AOA not working with 2 bu04 modules, range and angle don't arrive to com port of station. What could be the problem? AOA working only with bu03 and bu04?