Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
5 Software Upgrade
5.1 Upgrade Preparation
Table 5-1 describes the upgrade preparation.
Table 5-1 Upgrade preparation
With at least 30% power remaining.
vendor_XXX_XXX/UPDATE.APP
Upgrade using
microSD cards
5.2 Upgrade Process
1. Format the microSD card.
2. Create a folder named dload in the root directory of the microSD card.
3. Copy the upgrade file to the dload folder.
4. Install the microSD card to the handset. Power the handset on, and enter
*#*#2846579#*#* in the idle screen.
Select SD card upgrade then press Confirm to start the upgrade.
5. Before the upgrade, NV items backup is performed (if the handset has not been backed
up before). Then the handset restarts and the upgrade starts.
6. The upgrade progress is displayed on the LCD.
Figure 5-1 shows the upgrade process diagram.
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