Service manual

3.CIC AND SERVICE CENTER
- 23 -
Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
No FAQ Q&A
8 Q
Unused application shows up as a using program even though it is all killed. What
should I do?
A
On Android OS system, default apps keep working automatically in the background
in favor of OS stability and better system performance. Such apps are displayed in the
process list even after the user ends apps with the Task Killer.
1. Task Killer will end an application.
2. Services necessary for phone operation are run automatically in the background and
displayed on the list, although the applications are not run (i.e. applications that need
keep running).
3. When you run any functions on the phone, the service internally called will in turn
call relevant process, which will be displayed on the list (i.e. applications called along
for fast driving and safe program running).
4. A particular operation will automatically call relevant processes, which are showed
on the list. The processes vary depending on applications. Some apps needed for
background tasks will be displayed on the list even when they are ended.
When you set the Task Killer to Auto Kill the entire items, functions necessary for daily
use (e.g. Kakao Talk) will be forcefully ended, causing trouble.
9 Q
Wi connection doesn’t work well.
A
Internet connection speed may vary depending on wireless internet line, speed spec,
the number of users connected and signal cancellation.
1) Internet line(wireless internet). Wireless routers generating Wi-Fi signals are
connected to internet lines or wireless internet. Depending on the lines connected
to the internet, maximal Wi-Fi speeds may have limits.
* Check out if the wireless router supports normal data speed.
* Benchbee app can measure WiFi and 3G speeds.
2) Speed spec. Wi-Fi protocols have developed in the order of 802.11b->g->a->n.
802.11n provides the best speed, which cannot be used to the full if either the
wireless router sending the signal or the smartphone receiving it does not support
the protocol.
3) Number of users connected: Speed may drop when a number of users are
connected to an AP.
4) Signal cancellation: Prevailing Wi-Fi signals around city centers cause crosstalks
and fading, leading to disconnection or aborted connection.