Zte Blade L5 Manuel d'installation et d'exploitation

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ZTE Blade L5 Upgrade Guide

(Through an SD Card)

1 Overview

1. The ZTE Blade L5 is a smartphone that ZTE provides. This manual is

intended for ZTE Blade L5 users. As a user of the ZTE Blade L5, you can

use this manual as a guide to use an SD card to upgrade the software of

your mobile phone on your own.

2. Upgrade instructions:

To upgrade the software of your mobile phone by using an SD card, you

need to perform the operations required before, during, and after the

upgrade.

i. Before the upgrade, you need to prepare everything required for the

upgrade.

ii. You can upgrade the software by using two methods: normal upgrade

and forced upgrade.

Normal upgrade: preferred upgrade method. During a normal

upgrade, your mobile phone needs to boot and enter the

configuration module.

Forced upgrade: applied when the ZTE Blade L5 cannot boot or

display the standby screen. During a forced upgrade, your

mobile phone does not need to boot.

In most cases, the ZTE Blade L5 software can be upgraded

successfully by using a normal upgrade. If a normal upgrade fails,

perform a forced upgrade. If the forced upgrade fails, contact an

after-sales service agent to troubleshoot the problem.

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iii. After the upgrade, you need to restore the information that you have

backed up before the upgrade.

2 Before an Upgrade

1. Prepare the tools required for upgrading the software of your mobile phone

through an SD card.

Upgrade package

i. Enter the following URL in the address bar of a browser:

http://www.ztedevice.com/support/index.html. ZTE’s official website

for smartphone service support is displayed.

ii. Download the upgrade package named update.zip corresponding to

your mobile phone model. To check your mobile phone model, tap

Settings > About phone > Model number. If the file downloaded is

not named update.zip, decompress the file and obtain the update.zip

file.

iii. Move update.zip (the file name must be update.zip) to the root

directory of the SD card, see Figure 2-1.

Figure 2-1 update.zip

Note:

Verify that the update.zip file in the root directory of the SD card is applicable to

your mobile phone model. Do not modify the name or extension of this file.

Micro SD card

It is recommended that the Micro SD card be larger than 1 GB.

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2. Back up information by using the Backup and Restore function embedded

in your mobile phone.

Note:

Do not remove the SD card during the backup process. To prevent data loss, it is

not recommended to cancel an ongoing backup process.

i. Remove the SIM card for security purposes.

ii. Install the SD card.

iii. On the Main Menu of your mobile phone, tap Backup and Restore to

start the Backup and Restore program, see Figure 2-2.

Figure 2-2 Backup and Restore

iv. Back up data and application programs saved in your mobile phone.

3. Check whether the battery life of your mobile phone is long enough (no

less than 35%) for the upgrade. If not, charge your mobile phone first until

the battery life is equal to or greater than 35%.

Note:

To prevent data loss or upgrade failures, it is not recommended to upgrade your

mobile phone software through the SD card when the phone is being charged.

Otherwise, a battery life alarm is displayed, see Figure 2-3.

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Figure 2-3 Battery Life Alarm

3 During the Upgrade

Note:

1. During the upgrade, do not perform other operations on your mobile phone or

forcibly remove the battery to prevent an upgrade failure.

2. Upgrade through an SD card can be completed in 2–3 minutes. If your mobile

phone does not reboot or return any response in three minutes, upgrade your mobile

phone again. If your mobile phone cannot boot, perform a forced upgrade through

the SD card. If the forced upgrade fails, contact an after-sales service agent to

troubleshoot the problem.

3.1 Normal Upgrade

1. On the Main menu, tap File Manager. Enter the SD card directory. Verify

that the update.zip file can be found and is normal, see Figure 3-1.

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Figure 3-1 update.zip Status

2. Return to the Main Menu. Tap Settings > About phone > System

software update, see Figure 3-2.

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Figure 3-2 How to Enter the System software update Screen

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3. The System software update dialog box is displayed. Tap OK, see Figure

3-3. The mobile phone is automatically powered off.

Figure 3-3 Update Confirmation

Note:

If your mobile phone does not have an SD card installed or the update.zip file is

not present in the root directory of the SD card, the “No SD card”or “No update

package file on sd card”message is displayed, see Figure 3-4 and Figure 3-5.

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Figure 3-4 No SD card Message

Figure 3-5 No update package file on sd card Message

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4. After your mobile phone reboots, the upgrade screen is directly displayed.

The upgrade automatically starts, see Figure 3-6.

Figure 3-6 Upgrading the Software

5. After the upgrade is completed, your mobile phone reboots again. After

your mobile phone is started, it is recommended to tap Settings > Backup

& reset > Factory data reset to restore your mobile phone to factory

defaults to improve mobile phone stability. The mobile phone can then be

used.

3.2 Forced Upgrade

1. Verify that your mobile phone is powered off. Press and hold the Power

key, and then press and hold the upper Volume key, until the screen is lit,

then the mobile phone enters the recovery menu. In this mode, the

Volume key allows you to select an option, and the Power key allows you

to confirm an operation, see Figure 3-7.

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Figure 3-7 How to Enter the Recovey Menu

2. Press the lower Volume key to select apply update from sdcard. Press

the Power key to confirm the selection. The SD card directory is displayed,

see Figure 3-8.

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