A.按鍵失靈 B.信號(hào)差 C.不入網(wǎng) D.不發(fā)射
A.無(wú)信號(hào)不入網(wǎng) B.有信號(hào)不入網(wǎng) C.開(kāi)機(jī)定屏 D.信號(hào)弱
A.LNA B.RXVCO C.PLL D.AFC