if your run this
#include <EEPROM.h>
void setup() {
Serial.begin(115200);
for (int i = 0; i < 20; i++) EEPROM.write(i, i);
for (int i = 0; i < 20; i++) Serial.println(EEPROM.read(i), BIN);
}
void loop() {}
what do you see in the Serial monitor set at 115200 bauds ?