Yes, but better option may be to make it global variable.

You have to connect to device, then search for services and characteristics before you can read characteristic.

Disconnect error: 0x13 Remote User Terminated Connection I am working with esp v3.3/arduino/AmazonFreeRTOS, esp-idf v4.x and i dont see any problems with it (samsung S9+ with android 10). Maybe there is problem with MTU negotiating. Setting local MTU does not mean its negotiated successfully. Do you...

There is no such thing like default UUID. UUID is set in application.

This is wrong use of printf.
IP2STR macro returns string, to use it with printf you have to use %s, not IPSTR.

You just cant use Serial.print this way:
Try : Or any similar.

Did you try to install fresh arduino esp32? There is many reasons you can have this or similar error: rst:0x3 (SW_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) It may be as simple as having some pin pulled up or down on startup, read about bootstrap pins: https://github.com/espressif/esptool/wiki/ESP32-Boo...

There is not much to say with only those logs. There is no crash, no backtrace etc.
Without code nothing we can do.

Thats possible. Maybe default size of certificate is the issue. esp32 is accepting 2048 bytes key IIRC, but doesnt accept 4096.

You have 2 situations here. 1. problem with secured connection E (7125) esp-tls: read error :-76: E (7125) TRANS_SSL: esp_tls_conn_read error, errno=Socket is not connected 2. i doubt you binary file has on 15421 bytes, so what you are downloading and flashing? I (7125) native_ota_example: Connectio...