CAMBRIONIX OEM-U8S User Manual

OEM-U8S Page 34 of 437.4. Device connectionIf you are seeing any device connection issues please read through the following trouble shootingsteps to see if this resolves the observed behaviour.Device issues when updatingWe have found that during updates on some devices the connection can be dropped or lost on thedevice, this is due to devices going in and out of the bootloader and requiring different power levels.In most instances disabling CDP has resolved this issue for our customers.You can disable CDP through NVRAM settings either by going through the advanced settings andturning "Sync charge" off or through the API and disabling it via code. For example, the instructionswould be below using the command line.settings_unlocksettings_set sync_chrg 0000000000000000Unstable device connectionSome devices can have unstable connections with your host system through the OEM-U8S. We haveonly observed this behaviour in a very few amount of devices, disabling CDP this has resolved allissues and the connections are stable.You can disable CDP through NVRAM settings either by going through the advanced settings andturning "Sync charge" off or through the API and disabling it via code. For example, using thecommand line, the instructions would be as below.settings_unlocksettings_set sync_chrg 0000000000000000Battery information for AndroidIf you are observing an issue displaying battery information on Android devices ensure firstly youhave ADB tool installed and open then try these things in order.1. Check that developer options are enabled on the android device, and then that USB debuggingis also enabled.2. If you have done this step and it still does not work, go to Developer Options and click ‘RevokeUSB debugging authorisations’. Unplug the cable and reconnect.3. If this still doesn’t work, turn off the developer options at the top, re-enable it, and re-enable‘USB Debugging’.4. You can get detailed info directly from ADB at each step to diagnose things: