CDMA single-mode mobile phone software upgrade and maintenance processing V1 Software upgrade and maintenance processing modification record: | Version number | Modifier | Modification date | Modification content | | V1.0 | Ji Lifeng | 2011-02-23 | First draft | | | | | | | | | | | CDMA single-mode mobile phone software upgrade and maintenance processing V1.0 1. Methods for entering various modes using T card 1. Software download mode: Put only the file \"#D#.t\" in the root directory of the T card. Press the call key and the power button to turn on the phone, then you can enter the download mode. 2. Software upgrade mode: Put \"#D#.t\" and the DATAIO file \"update.mbn\" in the T card at the same time, then press the call key and the power button to turn on the phone, then the DATAIO file in the T card will be directly used for upgrading. 3. Erase mode: Put the file \"#E#.t\" in the root directory of the T card. Press the call key and the power button to turn on the phone, then you can enter the erase mode and erase the file system. Note: Please note that no two files in \"#E#.t\" or \"#D#.t\" should exist at the same time in the root directory of the T card. 2. Maintenance process for failure of main program upgrade ➢ Phenomenon: After inserting the battery, the boot screen can be displayed; Countermeasures: 1. Insert the USB cable, connect to the computer, and check whether QPST has a port. If there is a port, please use QPST or a dedicated download tool (such as: Multi_QDL V1.09.exe) to download the software; in the following...
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