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2. Local update using a microSD card
a. Prepare a microSD card that has a capacity of more than 2 GB. Brands including SanDisk,
Kingston, and KingMax are recommended.
b. Create a dload folder in the root directory of the microSD card. Put the downloaded
UPDATE.APP update package in the dload folder.
c. Connect your phone to a charger and press and hold the volume up and down buttons. Press
and hold the power button for more than 10s to power on the phone. Then your phone will
start the forcible update process using the microSD card. Your phone may fail to be powered
on because of no or few battery power. Charge your phone before the update. Connect your
phone to a charger during the update to ensure sufficient battery power.
d. Your phone will automatically complete the update process, which takes about 5 minutes. If
the update fails, start over.
16.2 Why does the online update fail?
1. Check whether your phone has been rooted and the pre-installed applications have been
removed or some system files have been modified. If so, perform the update using a microSD
card.
2. Check whether your phone's internal storage space or the microSD card's storage space is
insufficient. If so, free up the storage space and try again.
3. Check whether a microSD card is installed to your phone. If so, the microSD card may not
be compatible with your phone. Uninstall the microSD card and try again.
4. Check whether your phone's battery level is at least 20%. If not, charge your phone.
16.3 The update package is available on the entire
network. Why can't my phone detect the update package?
1. Check whether your phone has been rooted and the system files have been deleted.
2. If the system files have not been modified, touch Settings > Manage apps > Updater >
Clear data. Switch to the mobile network or another Wi-Fi network and search for the update
package.
16.4 What can I do if my phone fails to download the
available update package?
1. Check whether your mobile or Wi-Fi network is disabled. If so, the download will not be
able to start.
2. Check whether airplane mode is enabled.
3. Check whether you have touched the pause button.