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Instruction of CDMA ZTE N9120 SD card upgrade
Ⅰ Caution
The software version and pictures in this document are just for reference only. Please use
ZTE handset support website provided version to download software, moreover, T card upgrade
only allows upgrading between the same version and from low version to high version.
1) Before you begin:
a) Please back up all user data of mobile phone, including Phonebook, Messages and so on;
b) Please check whether the mobile phone can be normally powered on, otherwise it may cause
download failure;
c)Take out UIM card, and then check whether the folder name of update.zip in SD card is
correct; during upgrading, all data of Download file in the directory of SD card will be erased,
therefore, we recommend you to copy the update package to update files of update.zip with an
empty SD card before starting upgrade. If SD card has data, you can back up the files of Download
directory to computer so that the data won’t be lost.
d) Check whether the battery power is enough (At least 2 cells), otherwise please charge the
mobile phone until the battery power is enough; Do not execute SD card upgrade while charging,
otherwise the data may be lost and the device may hang during downloading.
2) Do not do other operations and do not take out battery by force during downloading.
3） It will take 1-2 minutes to finish the SD card upgrade of ZTE N9120, if the mobile phone
cannot automatically reboot or respond over 2 minutes later, please upgrade the mobile phone
again; If the mobile phone cannot be powered on, please execute forced upgrade. If the forced
upgrade is ineffective, please contact ASC.
Ⅱ Steps of SD card upgrade
1. Download the update package, and then copy the software to SD card of mobile phone.
a) Open SD card update package which is downloaded from ZTE official website, modify the
name of update package as update.zip; please confirm the update.zip after finished
modification, shown as picture 1-1: