S25 - Troubleshooting Mobile Devices Flashcards
For the health of your battery in the long term what is considered best practice and why
Slow trickle charge, devices actually have memory of their charging habits and so if you always charge your phone once it reaches 80%, your device will deem 80% as low battery and as a result will cause the battery health to deteriorate as the maximum battery it will learn to hold will decrease
Why do swollen batteries occur
overcharging, the circuitry that is in charge of preventing this has failed
When it comes to mobile device health what are the main issues that you will come across
Poor battery health, Charging issues, swollen batteries
Define overheating damage
any device that unable to properly cool itself down
What to do when dealing with water damage
Dry of excess liquid
power off device
disassemble device
clean circuit boards and contacts
replace battery
Mobile hardware issue types
Overheating, liquid, physical port damage
4 mobile display issues
Broken screens
Dim images
Digitizer issues
Calibration issues
4 layers to screen
Glass, digitizer, screen , backlight
Why do digitizers fail
Shock damager from dropping or liquid damage
What does a dim screen indicate
Backlight issues (inverter: cant supply power to backlight / back light: broken)
Define digitizer
Device underneath the glass that responds to input of the user
When troubleshooting a cursor issue
check the touch pad sensitivity and observe the user using it
When troubleshooting mobile device connectivity issues make sure / you should
connected to right SSID
right password
move closer to AP
higher gain antenna
For a good connection to AP how far should you be at a max
30-50 meters
with weak/no connection to AP in terms of hardware what should you check
The wireless NIC is connected properly to its antennas
