"Software installation failed" error when booting up
This procedure should work:


copy the dload folder(should contain update.app package provided by Huawei R&amp;D) in MicroSD card (root folder) and insert the MicroSD card in your phone.
Turn off the phone by removing battery or pressing power button longer than 10 sec.
Boot the device in recovery mode by pressing power + volume up key.
once it is booted in recovery, select "upgrade using external storage" using volume up, down and power key
navigate to update.app package and press power button.


It will start the installation process and your phone should work after upgrade.