1、目錄A690 軟件升級說明書 ···············································

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8、;··2第一章 升級前軟硬件準備 ·············································

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17、··············3 升級數據線驅動程序 ··································

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36、#183;·····7第五章 升級完畢開機檢驗 ··········································

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39、;···········122軟件升級指導書第一章 升級前軟硬件準備1.1 軟件準備工作 升級工具軟件 升級數據線驅動程序1.2 硬件準備工作 升級數據線升級數據線名稱GB 5pin-USB數據線升級數據線編號31-028916未經允許，請勿傳播此文檔3升級線驅動名稱USB VCOM Driver（附于升級工具包中）升級線驅動存放位置SIM 系統知識庫檢索軟件相關資料升級工具名稱SPMultiPortFlashDownloadProject（與手機軟件包打包在一起）SIM 系統知識庫檢索軟件相關資料升級工具存放位置軟件升級指導書第二章 軟件升級設備連接示例數據線 I/O 接口連接到手機數據線的 USB 端口連接到電腦GB 5pin-USB 數據線未經允許，請勿傳播此文檔4軟件升級指導書第三章 驅動安裝注意事項：1、驅動安裝需要一至兩次（已安裝一次了可能電腦未識別會提示再安裝一次），過程相同（若電腦已裝過類似驅動的，直接進入升級部分）。2、手機拆下電池，重新安裝電池后，再插上 USB 線。驅動安裝步驟：1、 對于初次使用該下載工具的電腦需要安裝 USB 驅