ESP32 upload error "MD5 of file does not match data in flash"

[longshenhao]

It's very strange because this error will only appear when i upload the code below:

"#include<BLEDeveice.h>

void setup(){
BLEDevice::init("esp32");
}

void loop(){

}
"
other function like wifi, gpio, iic, spi, interrupt even bluetoothSerial all work.

I have four development boards and only one appear this problem.
Anyone help?

[ESP_Sprite]

Perhaps something wrong with the level of GPIO12 on bootup?

[longshenhao]

Thanks for the reply, I figure it out. It's the problem of the flash chip. I will attach a picture below.