ok. i tryed using botton sequence. I have got this error using esp easy flesher. This is the copy of log:
######2020-06-24######
#######0.04.007#######
######FLASH INFO######
BIN file: ESP_Easy_mega_20200608_test_ESP32_4M316k-factory.bin
COM port: (COM3) Silicon Labs CP210x USB to UART Bridge (Port_#0004.Hub_#0001)
Baud rate: 115200
######POST FLASH######
No post flash information entered...
######FLASH LOG######
[esptool.exe -vv -cd nodemcu -cb 115200 -cp COM3 -ca 0x00000 -cf "C:\Users\HP\Downloads\ESPEasy_ESP32_mega-20200608\bin\ESP_Easy_mega_20200608_test_ESP32_4M316k-factory.bin"]
[24/06/2020 22:12:28] esptool v0.4.12 - (c) 2014 Ch. Klippel <
ck@atelier-klippel.de>
[24/06/2020 22:12:28] setting board to nodemcu
[24/06/2020 22:12:28] setting baudrate from 115200 to 115200
[24/06/2020 22:12:28] setting port from to COM3
[24/06/2020 22:12:28] setting address from 0x00000000 to 0x00000000
[24/06/2020 22:12:28] espcomm_upload_file
[24/06/2020 22:12:28] espcomm_upload_mem
[24/06/2020 22:12:28] setting serial port timeouts to 1000 ms
[24/06/2020 22:12:28] opening bootloader
[24/06/2020 22:12:28] resetting board
[24/06/2020 22:12:28] trying to connect
[24/06/2020 22:12:28] flush start
[24/06/2020 22:12:28] setting serial port timeouts to 1 ms
[24/06/2020 22:12:28] setting serial port timeouts to 1000 ms
[24/06/2020 22:12:28] flush complete
[24/06/2020 22:12:28] espcomm_send_command: sending command header
[24/06/2020 22:12:28] espcomm_send_command: sending command payload
[24/06/2020 22:12:28] read 0, requested 1
[24/06/2020 22:12:28] trying to connect
[24/06/2020 22:12:28] flush start
[24/06/2020 22:12:28] setting serial port timeouts to 1 ms
[24/06/2020 22:12:28] setting serial port timeouts to 1000 ms
[24/06/2020 22:12:28] flush complete
[24/06/2020 22:12:28] espcomm_send_command: sending command header
[24/06/2020 22:12:28] espcomm_send_command: sending command payload
[24/06/2020 22:12:28] espcomm_send_command: receiving 4 bytes of data
[24/06/2020 22:12:28] trying to connect
[24/06/2020 22:12:28] flush start
[24/06/2020 22:12:28] setting serial port timeouts to 1 ms
[24/06/2020 22:12:28] setting serial port timeouts to 1000 ms
[24/06/2020 22:12:28] flush complete
[24/06/2020 22:12:28] espcomm_send_command: sending command header
[24/06/2020 22:12:28] espcomm_send_command: sending command payload
[24/06/2020 22:12:28] espcomm_send_command: receiving 4 bytes of data
[24/06/2020 22:12:28] espcomm_send_command: receiving 4 bytes of data
[24/06/2020 22:12:28] espcomm_send_command: receiving 4 bytes of data
[24/06/2020 22:12:28] espcomm_send_command: receiving 4 bytes of data
[24/06/2020 22:12:28] espcomm_send_command: receiving 4 bytes of data
[24/06/2020 22:12:28] espcomm_send_command: receiving 4 bytes of data
[24/06/2020 22:12:28] espcomm_send_command: receiving 4 bytes of data
[24/06/2020 22:12:28] espcomm_send_command: receiving 4 bytes of data
[24/06/2020 22:12:28] Uploading 1856864 bytes from C:\Users\HP\Downloads\ESPEasy_ESP32_mega-20200608\bin\ESP_Easy_mega_20200608_test_ESP32_4M316k-factory.bin to flash at 0x00000000
[24/06/2020 22:12:28] erasing flash
[24/06/2020 22:12:28] size: 1c5560 address: 000000
[24/06/2020 22:12:28] first_sector_index: 0
[24/06/2020 22:12:28] total_sector_count: 454
[24/06/2020 22:12:28] head_sector_count: 16
[24/06/2020 22:12:28] adjusted_sector_count: 438
[24/06/2020 22:12:28] erase_size: 1b6000
[24/06/2020 22:12:28] espcomm_send_command: sending command header
[24/06/2020 22:12:28] espcomm_send_command: sending command payload
[24/06/2020 22:12:28] setting serial port timeouts to 17264 ms
[24/06/2020 22:12:28] read 0, requested 1
[24/06/2020 22:12:28] setting serial port timeouts to 1000 ms
[24/06/2020 22:12:28] warning: espcomm_send_command: didn't receive command response
[24/06/2020 22:12:28] warning: espcomm_send_command(FLASH_DOWNLOAD_BEGIN) failed
[24/06/2020 22:12:28] closing bootloader
[24/06/2020 22:12:28] flush start
[24/06/2020 22:12:28] setting serial port timeouts to 1 ms
[24/06/2020 22:12:28] setting serial port timeouts to 1000 ms
[24/06/2020 22:12:28] flush complete
[24/06/2020 22:12:28] error: espcomm_upload_mem failed
[2020-06-24 22:12:28] DONE! BUT WITH (1) ERRORS!
############################
[2020-06-24 22:12:28] The COM port was already in use... the post-flash did not complete.
[2020-06-24 22:12:28] JOB COMPLETED, over and out!