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Step:9 - After downloading the file, the phone will install the required file.
Step:10 - When the phone has successfully installed the file, the phone will
display a screen to inform you that the firmware upgrade is completed.
Step:11 - Press and hold the Power
key for 3 seconds and release. The
new firmware should have been installed.
Note:
If there is an error during the firmware upgrading, an error screen will
appear. If the error screen appears at Step 8, shut down the phone
and restart it, then, go through the entire steps again.
Fig.43 Image Installing Screen
Fig.44 Upgrade Completed Screen
Upgrading
section
Error responses
from phone
Steps to proceed
Firmware
Upgrade, Web
config and Boot
loader
Error! Please
press power key
to reboot the
phone.
Press power key
to shut down the
phone and repeat
steps
Firmware
Upgrade, Web
config and Boot
loader
Checksum Error!
Please send the
phone for
servicing.
Firmware has
been corrupted.
Send to service
centre for
technical
assistance.
Fig.43 Phone Error Response Table