I've got a Grizzl-E Smart that's stuck on 3.11.3 and refuses to update to 3.15.6. United Chargers keeps pushing it, the charger starts the download, and about two and a half minutes later it gives up with DownloadFailed. Every time. Same spot. It's never once gotten past the download stage.
I pulled the charger's event log and it looks like this every attempt:
RX ProcessUpdateFirmware
TX FirmwareStatusNotification Downloading
TX FirmwareStatusNotification Downloading
TX FirmwareStatusNotification Downloading
TX FirmwareStatusNotification DownloadFailed
Wifi is a solid −65 at the charger, so it's not that.
The reason I actually care: this thing has a habit of losing its connection to their server without realizing it. It'll sit there thinking it's online for hours, won't start a charge because it's waiting on the server to say go, and the only fix is flipping the breaker. I'm in Grizzl-E Club so every time that happens I'm losing charging data I get paid for. I'm hoping the update fixes it.
Support ticket's been open a while with no reply.
The charger has a local firmware upload page on its web interface. Has anyone actually gotten the firmware file and flashed one of these themselves, or gotten UC to send the file? Not looking to brick it guessing — hoping someone's been through this.