Zte Blade L5 Installation and operation manual
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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 3-2 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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Figure 3-8 SD Card Directory
3. Press the lower Volume key to select update.zip. Press the Power key to
confirm the selection. The upgrade is started, see Figure 3-9.
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Figure 3-9 Upgrading the Software
4. The upgrade can be completed in 2–3 minutes. When the “Install from
sdcard complete” message is displayed, press the lower Volume key to
select reboot system now. Press the Power key to confirm the selection.
The mobile phone then automatically reboots. After your mobile phone is
started, it is recommended to tap Settings > Backup & reset > Factory
data reset to restore your mobile phone to the factory defaults to improve
mobile phone stability. The mobile phone can then be used, see Figure
3-10.
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Figure 3-10 Selecting the Reboot System Now Menu
4 After the Upgrade
After the upgrade, you need to restore the information that you have backed up
before the upgrade.
1. On the Home screen, tap Backup and Restore, see Figure 4-1.
Figure 4-1 Backup and Restore
2. Following the instructions displayed on the screen to restore the backup
information.
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Note:
Do not remove the SD card when restoring data and application programs. To
prevent data loss, it is not recommended to cancel the restoration before it is
completed.
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