NV (nonvolatile) parameter import method, modem and mobile terminal

Abstract

The invention discloses a NV (nonvolatile) parameter import method, a modem and a mobile terminal. The method comprises steps: the modem determines whether NV parameters are already imported to an encrypting file system of the mobile terminal; if the NV parameters are not imported to the encrypting file system, an NV mirror image is acquired from an EMMC (Embedded Multi Media Card), wherein the NV mirror image is written to the EMMC through a writing tool during a mobile terminal production process; the NV mirror image is analyzed, the NV parameters obtained through analysis are written to the encrypting file system and thus, import of the NV parameters is realized. In comparison with the prior art, during the mobile terminal production process, the writing tool is only needed to be used to write the NV mirror image related to the NV parameters to the EMMC, import of the NV parameters to the encrypting file system is realized by the modem inside the mobile terminal, the mobile terminal does not need to be started and a special import tool for import is not needed during the production process, operation during the production process is simplified, the production efficiency of a production line is effectively improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of mobile terminals, in particular to a method for importing NV parameters, a modem and a mobile terminal. Background technique [0002] In the existing mobile phone solutions, the nonvolatile (Nonvolatile, NV) parameters of the mobile phone are necessary parameters for the normal operation of the modem (Modem) of the mobile terminal, and are usually loaded when the Modem is started to determine some important behaviors during operation. For example, the power compensation of the video module, the ID number of the device, the selection of the antenna switch and the network standard selected by the mobile phone, etc. [0003] At present, the NV parameters in the mobile phone are imported into the Encrypting File System (Encrypting File System, EFS) of the mobile phone during the production process of the mobile phone, so that the Modem can use the NV parameters in the EFS, so that the mobile phone can be used...

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a method for importing NV parameters, a modem and a mobile terminal, aiming at solving the problem that in the prior art, the encrypted file system of NV parameters must be imported in the production process of the mobile phone, and a specific import tool must be used when the mobile phone is turned on. Importing, the operation is complicated, which reduces the production efficiency of the production line, and because of the need to use specific importing tools, it will also bring about high production costs

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