Acer E100/E101 Smartphone User Guide70Error messagesSystem infor-mation andperformanceHow do I checkthe OS version ofmy device?Tap Menu > Settings > Aboutphone to check the OS version(Kernel/build number) and otherhardware and software informa-tion.Power I couldn’t turn onthe device.The battery power may bedepleted. Recharge the device.Refer to “Installing a SIM card” onpage 12 for more information.Even when fullyrecharged, thebattery seems torun down veryquickly.Check power saving options. TapStart > Settings > System > Powerto configure power savingoptions.Error message DescriptionConnection canceled Operation canceled by the user.Service unavailable -please try again laterThe network is not stable, or server has notresponded. Try again later.Connection unavailable -please check your networksettingsNo path to the destination is available.Please check the settings in Start > Settings> Connections.1. If your Smartphone is connected toyour PC via USB, check both the PC'snetwork settings and ActiveSync set-tings (when connected via USB,GPRS/3G is not used).Notes:Try using Internet Explorer to connect to awebsite to verify your networkconnection.Aspect Question Answer