OTA Upgrade Instructions :|
If you encounter upgrade unsuccessful during the processing,please try to follow steps:
1. Power off->unplug the SIM card/ TF card
2. Power on the device ,then connect WiFi
3. Go Settings -> About phone - Wireless Upgrade
4. Click to download OTA package.
5. When the OTA package download is complete, click Install
NOTE: installation processing requires 5-10 minutes, please be patient, do not perform any operation until the upgrade is
1. If you encounter upgrade unsuccessful. After you can try to restore the factory settings, again according to the above steps
for the upgrade.
2. If you encounter during the upgrade process, go to "robot"page or mode options page, you can press "power button" for 20
seconds to force boot the device ,then Go Settings -> About phone - > Custom build verson (to confirm
whether to upgrade to the latest version)
3. If the above methods do not work, use the T card upgrade package, see the link below.