BY UROVO PRODUCT
3）检查 SIM 卡，是否欠费，是否开通上网功能或者 SIM 卡是否损坏（SIM 卡装
入手机进行测试是否损坏或者欠费）；
3) Check whether the SIM Card has any pending bill, is available for surfing the
Internet or damaged (test whether the SIM Card is damaged or has any pending bill
by loading the SIM Card in the device);
4）接入点是否设置正确。
4) Check whether the access point is correctly set.
蓝牙
Bluetooth
配备蓝牙的设备可以进行无线通信，使用无线射频以 2.4 GHz 工业、科学和医疗
(ISM) 带宽(802.15.1) 传输和接收数据。蓝牙无线技术专为短距离（10 米 /32.8 英尺）
通信和低功耗需要而设计。
Any device with Bluetooth is available for wireless communication to transmit and
receive data by wireless radio frequency (2.4 GHz) and industrial, scientific and
medical (ISM) bandwidth (802.15.1). Bluetooth wireless technology is intended for
short-haul (10 m/32.8 feet) communication and low power demand.
具备蓝牙功能的设备可与打印机、接入点以及其他移动数据终端等启用了蓝牙功能
的设备交换信息（例如文件、约会和任务）。
Any device with the Bluetooth function can exchange information (e.g., file, date or
task) with a printer, access point or any other mobile data terminal device enabling
the Bluetooth function.
DT50 支持蓝牙低功耗。蓝牙低功耗面向医疗保健、健康、安全以及家庭娱乐行业
的应用。它在保持标准蓝牙范围的同时降低了功耗、节省了成本。
DT50 supports Bluetooth low energy (BLE). BLE is oriented to healthcare, health,
safety and home entertainment apps. It maintains a standard Bluetooth range while
reducing power consumption and saving cost.
蓝牙连接
Bluetooth connection
1. 下拉状态栏长按蓝牙图标或者点击“设置”-“已连接的设备”进入页面；
Pull down the status bar and long press the Bluetooth icon or click "Settings"-
"Connected Device" to enter the page;
2. 点击“设备名称”，可命名 DT50 的蓝牙名称；
Click "Device Name" to rename the Bluetooth name of DT50;
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