Can't flash ESPEasy

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rowan.bradley
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Posts: 22
Joined: 25 Mar 2018, 15:30

Can't flash ESPEasy

#1 Post by rowan.bradley » 13 Jul 2018, 12:53

Hi,

I'm trying to flash ESPEasy to a brand new WeMos D1 mini, using ESP.Easy.Flasher, according to the instructions on viewtopic.php?t=3934.

When I press the Reset button on the WeMos, the blue LED flashes once. I suppose this at least means that power is getting through.
When in ESP Easy Flasher I select the following:
Image
and click Flash ESP Easy FW, I get the following in the log file:

######2018-07-13######
#######0.00.025#######
######FLASH INFO######
BIN file: ESPEasy_R120_4096.bin
COM port: (COM4) UZB
Baud rate: 115200
######POST FLASH######
Unit name:
Unit number:
Admin password: MyP4ssw0rd
WiFi SSID 1: Brightwell
WiFi password 1: MyP4ssw0rd
WiFi SSID 2:
WiFi password 2:
IP: 192.168.0.10
######FLASH LOG######
[esptool.exe -vv -cd nodemcu -cb 115200 -cp COM4 -ca 0x00000 -cf "D:\XPS_8700 Extended Files\Users\RowanB\Downloads\ESP_Easy_Flasher\BIN\ESPEasy_R120_4096.bin"]
[13/07/2018 11:11:07] esptool v0.4.12 - (c) 2014 Ch. Klippel <ck@atelier-klippel.de>
[13/07/2018 11:11:08] setting board to nodemcu
[13/07/2018 11:11:08] setting baudrate from 115200 to 115200
[13/07/2018 11:11:08] setting port from to COM4
[13/07/2018 11:11:08] setting address from 0x00000000 to 0x00000000
[13/07/2018 11:11:08] espcomm_upload_file
[13/07/2018 11:11:08] espcomm_upload_mem
[13/07/2018 11:11:08] error: Failed to open COM4
[13/07/2018 11:11:08] error: espcomm_open failed
[13/07/2018 11:11:08] error: espcomm_upload_mem failed
[2018-07-13 11:11:08] STOPPED due to 3 errors! (try reset on the unit, then start a new flash attempt)

Pressing Reset and trying again does not help.

What is going wrong here? Why can't it open the COM port? What do I have to do to fix this, or to investigate the problem further? Can I try the serial connection using Teraterm (or a similar terminal emulator)? If so, what serial parameters do I need to use, and what commands should the WeMos recognise and respond to?

Many thanks - Rowan

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grovkillen
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Re: Can't flash ESPEasy

#2 Post by grovkillen » 13 Jul 2018, 13:04

In the drop-down menu for com ports, what else do you see besides "UZB"?

It's not a correct programer as far as I know.
ESP Easy Flasher [flash tool and wifi setup at flash time]
ESP Easy Webdumper [easy screendumping of your units]
ESP Easy Netscan [find units]
Official shop: https://firstbyte.shop/
Sponsor ESP Easy, we need you :idea: :idea: :idea:

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