Heltec LoRa 32 V2 GPIO all unable!

Hi team, I’m very confused because my 2 boards when I use Heltec.begin() instruction inside heltec.h library, none of GPIO’s works; even though I used example LED_Control_lora_S.ino but GPIO never change status. It only works when Heltec.begin(… is commented.

I read in Cube topic that same issue happens but poster said that it happens because initBoardMcu was missing. Is this the solution? why is not mentioned at all in examples?. Best regards.

This is part of code from example, both pins (12, 13) never changed.

/*
Send a lora signal to control the LED light switch of another board.
Pull the 12th pin high to turn on the LED light.
Pull pin 13 high to turn off the LED light.
by Aaron.Lee from HelTec AutoMation, ChengDu, China
成都惠利特自动化科技有限公司
www.heltec.cn

this project also realess in GitHub:
https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series
*/
#include “heltec.h”
#define BAND 868E6 //you can set band here directly,e.g. 868E6,915E6

int counter = 0;
#define Open_LED 12
#define Close_LED 13
void setup() {

Serial.begin(9600);

//WIFI Kit series V1 not support Vext control
Heltec.begin(false /DisplayEnable Enable/, true /Heltec.LoRa Disable/, true /Serial Enable/, true /PABOOST Enable/, BAND /long BAND/);
pinMode(Open_LED,INPUT);
digitalWrite(Open_LED,LOW);
pinMode(Close_LED,INPUT);
digitalWrite(Close_LED,LOW);

Do you want to change the level of the pin through code? You can try
pinMode(Close_LED,OUTPUT);
digitalWrite(Close_LED,LOW);