Connecting computer does not want to function normally

After connecting the cable press the Windows key and the P key at the same time. The projector options will appear. Change from projector only to the desired configuration.

Have you read the last line of that message. Perhaps that would be a good place to start

try to connect your computer without battery, if computer can turn on normally. that mean your got problems with your battery, use other functioning battery to do troubleshooting. it most likely problems with your battery

A signal display on the devices is indication of normal functionality. Attempt to restart the device, also restart the computer to attain reconfiguration settings.

Phones when plugged into laptop will terminate any sim card functions such as making calls to prevent data loss if a transfer is taking place.
This is normal and always happens there is no way to disable it just make sure you only plug it into your Laptop when you require to transfer files to phone or use the manufacture software to perform an task which requires it to be plugged into laptop..

One of your hardware of your mac is currently experiencing bad functionality. Maybe, HDD, ram,Chipset, Lan,,etc..

Try to configure your router again, maybe that will solve your problem.

Generally this is an indication of a modem failure. If there have been any storms in your area, then the modem may have been zapped. The dial tone curcuit is normally the first casualty when a modem gets hit with more power than normal.

Provided that your telephone is functional on that line (Unplug modem, and connect a handset if this is a modem only line and see if the handset gets a dial tone, this is a good check to make sure the line is functional)

E02E02
Roll media set sensor error
<Cause>
This is displayed when the roll media set sensor could not detect positional changes by the paper guide during the paper guide opening and closing operations.
<Probable problem locations>
Roll media set sensor, roll media tray unit, roll drive unit, motor driver PCB, engine controller, system controller
<Remedy>
1.Visual check
Remove any foreign objects adhering to the roll media set sensor.
2.Roll media set sensor
Check operation using SERVICE MODE>I/O DISPLAY, and replace if anything does not function normally.
3.Cable connection check
Replace the cable between the roll media set sensor and engine controller if the connection is not functioning normally.
4.Roll media tray unit
Replace the unit if a visual check reveals that the gears are damaged, deformed, or otherwise do not function normally.
Replace the unit if an operation check reveals that the roll release lever does not function normally.
5.Roll drive unit
Replace the unit if a visual check reveals that the gears are damaged, deformed, or otherwise do not function normally.
6.Cable connection check
Replace the cable between the roll drive unit and motor driver PCB if the connection is not functioning normally.
7.Replace the motor driver PCB.
8.Cable connection check
Replace the cable between the motor driver PCB and engine controller if the connection is not functioning normally.
9.Replace the engine controller.
10. Replace the system controller.