In addition to the public firmware version, a BETA version is also available. While rebooting, the LED goes on a first rapid flicker ( connection to the Internet and then a second rapid flicker ( connection to an NTP clock server) and then switches to heartbeat. Once you have another heartbeat the upgrade is done. LoWi now starts a process of downloading, installing and rebooting and during this process which can take up to 1-2 minutes you should NOT disconnect the LoWi. Activating the upgrade is done by pressing the switch for about 5 seconds until the LED is constantly lit, then releasing it. If your LoWi is connected to WiFi as well as the Internet, you can determine this because the LED lights up briefly every 5 seconds (heartbeat LED) and then you can start upgrading. Manual upgrade via the switch on the LOWI stick: After the upgrade, “READY” appears at the STOP/START button and the current version is displayed. During this process which can take up to 1-2 minutes do not disconnect LoWi. LoWi now starts a process of downloading, installing and rebooting and displays this through a timeline. Select “START” and confirm with password ‘adminLOWI‘. Once both are OK you can start upgrading LoWi and you can do that in 2 ways. There MUST be connection to the Internet, only if the NTP box turns green is there internet.In the example it is -75dBm which is OK, from -80dBM and above WiFi is too weak for upgrade and for proper operation of the LoWi. There MUST be good and stable WiFi reception, WiFi signal strength can be read at RSSI.
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