Hi! Thanks for this project, I can finally reuse some hardware and free a USB connection from my UNRAID server I have remotely.
I’ve just opened an issue on GitHub, maybe are just misplaced strings - incredible how complex is this thing while UPSs are still … UPSs.
.. thanks again!
EDIT: LCD display is a nice idea, but which data should it show? 
Did you configure the WiFi connection?
Did you follow the instructions in the README’s ‘Getting Started’ section, specifically step 2 ‘First Boot & Configuration’?
@ Maverick1982 Of course. Your firmware only installs via option #1. Any other method completely breaks the device’s boot process. Completely erasing the memory also doesn’t solve this problem. Any other projects are installed without errors.
upd Figured it out. I have a copy of the ESP3 
The error seems to be in the memory block mismatch.
Embedded PSRAM 2MB
Flash Device 8 MB
UPD The solution is to compile your own firmware by forcing your board’s parameters.
board_build.flash_mode = dio
board_build.flash_size = 8MB
board_build.partitions = default_8MB.csv
board_build.f_flash = 80000000L
Three o’clock in the morning, red eyes, success 
Works like a charm, after some flashing problems. As usual it wouldn’t flash at first. Had to connect USB-power with boot-button held, but then everythink worked without a hickup.
After that the problematic APC BK950MI connected as there had never been any trouble with nut and the USB-connections.
Would be nice to get a LED color guide. My stays red and flashes short on data (I suppose), but I expected it to be green. Was looking for an error for some time until I saw, that on the webinterface everything is green.
Eventually got around to installing version 1.3.0 and now all OK. Thank you.
This issue is known in v1.2.1 and should be resolved in v1.4.0, which includes stability fixes and improved USB handling for CyberPower devices.
Please update to firmware version v1.4.0 and let us know if the disconnects persist.
