Acer Liquid Z2, Service Manual

Page: 19 / 52

Acer
SERVICE GUIDE
Page : 19/49
Language :English
Date : 2013-01-18
页码
19/52
8.After downloading success, the screen will show
“Install from sdcard complete”, if
not, means failed. Please record the language tips, had better take pictures for
engineer to debug. When succeed, choose
“reboot system now” to restart.
Rebooting completed is OK.

Common causes of failure to upgrade
：
A. Use wrong files to upgrade, for example, use others models software. Measures:
use correct files.
B. When copy original files from computer to SD card, anti-virus software maybe
break some internal files or SD card is defective, lead to upgrade package
copied be different from the original package(use tool for contrasting or contrast
md5 can recognise , verifying files failure in the process of upgrading lead to
upgrade failure.
Measures: delete the software package in the SD card, recopy again to try or
change another SD card , copy original package again to retry.