MF97G Upgrade Guide (Through an SD Card) 1. Backing Up the Data 1) Download the upgrade package. Download the upgrade package (update.zip) that matches your device from ZTE handset website. If the downloaded package is not update.zip, unzip the package to obtain the file. Ensure that your micro SD card is at least 1GB. Verify that the update.zip file in the root directory of the SD card matches the model of the device. Do not modify the file name and extension name of the files in the upgrade package. 2) Back up the data and APPs in your device by using a third-party PC tool. 3) Verify that your device has enough (at least 20%) power. Charge the device if required. To avoid data lost or upgrade failure, it is not recommended to upgrade your device through an SD card when the device is being charged. 4) You should not perform any other operation on the device during the upgrade process. 5) A normal upgrade should be completed in 2-3 minutes. If the device does not reboot or show any response in three minutes, you should perform the upgrade process again. If the device cannot be started, you should contact ZTE Support Hotline for support. 2. Upgrade Description There are two upgrade methods: normal upgrade and forced upgrade. If the device cannot be started properly, for example, the device cannot be started, or the device does not enter standby state, perform a forced upgrade. If the device can be started properly and the Settings menu can be selected, perform a normal upgrade. 3. Upgrade Steps A. Normal upgrade (the primary upgrade method) 1) Download the upgrade package that matches the device model from ZTE official website, extract update.zip from the package, and copy update.zip to the root directory of the SD card (the file name must be update.zip), see Figure 2-1. Figure 2-1 第 1 页
2) Select File Manager from the APPS menu, and verify that the update.zip file in the root directory of the SD card is proper, see Figure 2-2. Figure 2-2 3) Tap. The main screen is displayed. Tap the SETTINGS menu and select System > Local > About device > Additional system updates > Storage card updates, see Figure 2-3. Figure 2-3 4) Select the upgrade package (update.zip). If the upgrade package is already saved in the root directory of the SD card, a screen is displayed, suggesting you to reserve the data in the device, see Figure 2-4. If there is no SD card inserted in the device or no upgrade package saved in the root directory of the SD card, a tip is displayed on the screen: Can t find update package on storage card. Please confirm that update package has been copied to root directory on storage card! See Figure 2-5. Figure 2-4 第 2 页
Figure 2-5 5) Click Update now, the device is automatically powered off, see Figure 2-6. Figure 2-6 After the device reboots, the Storage Card Update screen is displayed, see Figure 2-7. Figure 2-7 After the device is updated, it is rebooted again. After the device starts properly, it is recommended to manually restore the device to its original 第 3 页
factory default settings by selecting Settings > System > Local > Backup & reset > Factory data reset to enhance the system stability. The device is upgraded properly and can be used. B. Forced upgrade (for the device that cannot be started or the device that cannot enter standby state) 1) For a powered-off device, press and hold both the volume key + and power key until the device shakes once. The device enters Recovery mode. In this mode, the volume keys can be used to select a menu, and the power key can be used to confirm it, see Figure 1. Figure 1 2) Press the volume key - to select apply update form sdcard, and press the power key to confirm it. The root directory of the SD card is opened, see Figure 2. 第 4 页
Figure 2 3) Press the volume key - to select the update.zip file, and press the power key to confirm it. The device starts the upgrade process, see Figure 3. Figure 3 The device completes the upgrade process in about two minutes. 4) On the Upgrade Complete screen, select reboot system now and press the power key to confirm it, see Figure 4. 第 5 页
Figure 4 The device is automatically rebooted. After the device starts properly, it is recommended to manually restore the device to its original factory default settings by selecting Settings > System > Backup & reset > Factory data reset to enhance the system stability. The device is upgraded properly and can be used. 4. (Optional) Restoring the Data If you have backed up data before upgrading your device, restore the data. 第 6 页