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here is the link for all the device drivers on the webpage.
go there and modem/display drivers are on the 1st or 2nd page.
click on the link and download and install for your laptop.
Power issues are pretty typical with laptops as most time laptops are moved around alot and are not stationary. Here are a few possibliites that could be the reason for you not having power:
1. A/C cord is could possibly be bad. Attempt to use the cord on another outlet, then try to use the same cord on another similar laptop to see if power is transmitted. If cord is faulty, then purchase another cord.
2. A/C input adapter on laptop is faulty. The A/C input adapter is where you plug your A/C cord into the laptop. This can come from the input coming loose or wiring being loose or disconnected.
a. check to see if the part is loose by touching the part with your finger.
b. if you are not a professional, take the laptop to a certifiied computer repair shop.
3. If you are a professional or are comfortable opening the laptop (do bare in mind you opening the laptop yourself violates any warranty you may have), then look at the A/C input adapter to see if it is loose or if a wire was disconnected from the motherboard.
4. If you are a professional or are comfortable opening the laptop, another option would be to check the circuitry on the motherboard to see if there is a bad transistor or circuit on the motherboard.
I hope this was helpful and thank you for contacting the experts.