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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.
troubleshoot the problem.
3.1
Normal Upgrade
1.
On the Main menu, tap File Manager. Enter the SD card directory. Verify
that the
<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
Figure 2-3 Battery Life Alarm
If the forced upgrade fails, contact an after-sales service agent to
update.zip
file can be found and is normal, see Figure 3-1.
秘密 Confidential▲
第 4 页
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