ZTE Blade A521 Bruksanvisning
ZTE
Smartphone
Blade A521
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秘密 Confidential▲
<以上所有信息均为中兴通讯股份有限公司所有，不得外传>
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第1页
ZTE BLADE A521Upgrade Guide (Through SD Card)
1. Cautions
The software version and pictures in this document are just for reference
only. Please use ZTE handset support website provided version to download
software.
1) Download the upgrade package.
Open http://www.ztedevice.com.cn/support and download the upgrade
package (update.zip) that matches your phone model. If the downloaded
package is not , unzip the package to obtain it.update.zip
Ensure that your micro SD card is at least 2GB.
Note Please refer to our current version download size：.
2) Remove the SIM card before upgrade.
3) Backup your data and APPs in your phone before upgrade. You can use third-part
backup apps.
4) Verify that the file in the root directory of the SD card matches theupdate.zip
model of the phone. Do not modify the file name and extension name of the files
in the upgrade package.
5) Verify that your phone has enough (at least 40%) power. Charge the phone if
required. To avoid data lost or upgrade failure, it is not recommended to upgrade
your phone through an SD card when the phone is being charged.
6) You should not perform any other operation on the phone during the upgrade
process.
7) A normal upgrade should be completed in about 4 minutes. If it fails, please try
again. Any question you can contact the after-sale center to get support.
2. Update from system
1) Download the upgrade package that matches the phone model from ZTE
official website (http://www.ztedevice.com.cn/support/), extract update.zip
秘密 Confidential▲
<以上所有信息均为中兴通讯股份有限公司所有，不得外传>
All Rights reserved, No Spreading abroad without Permission of ZTE
第2页
from the package and copy it to the root directory of the SD card (the file
name must be update.zip).
2) Check file in the root directory of the SD card byupdate.zip File Manager
and make sure the file is pasted successfully.
3) Select , then clickSettings—>System update INSTALL button and finish
update following tips.
4) Restore your user data.
3. Update from recovery mode
1) Download the upgrade package that matches the phone model from ZTE
official website (http://www.ztedevice.com.cn/support/), extract update.zip
from the package and copy it to the root directory of the SD card (the file
name must be update.zip).
2) Check file in the root directory of the SD card byupdate.zip File Manager
秘密 Confidential▲
<以上所有信息均为中兴通讯股份有限公司所有，不得外传>
All Rights reserved, No Spreading abroad without Permission of ZTE
第3页
and make sure the file is pasted successfully.
3) Power off the phone, press and hold & together untilvolume up power key
phone enters Android system recovery mode.
1) Press key to select and pressVolume Apply update from SD card power
key to confirm selection.
Produktspecifikationer
| Varumärke: | ZTE |
| Kategori: | Smartphone |
| Modell: | Blade A521 |
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