mike

Samsung LA-46C550 LCD TV Service manual: https://www.manualslib.com/manual/893977...-La32c550j1f.html Analogue amplifier...

You can try software: https://windowsreport.com/laptop-battery-testing-software/ Or do it yourself: To re-calibrate your laptop's battery, you can follow the steps below: Important: Re-calibrating your battery may take several hours depending upon your system configuration as well as the age and life of your battery. 1. Turn your laptop Off. Then plug in your AC adapter. 2. Let the battery fully charge, until the battery LED turns Off. 3. Now, turn On the laptop and then press F8 key repeatedly when the first logo screen comes up. 4. In the "Windows Advanced Startup" menu, go to "Safe Mode" and then press the "ENTER" key. 5. Unplug the unit and let the computer run on battery until it shuts down.

They are nothing special. It is just a Bluetooth dongle. Bluetooth® technology uses the 2.4 GHz ISM spectrum band (2400 to 2483.5 MHz), which enables a good balance between range and throughput. Any computer shop will have USB port Bluetooth® dongles. Take your pick. Specs for yours: Wireless keyboard Item No. JW9851 Carrier frequency: 2405MHZ—2472MHz https://fccid.io/YHA-JW9851/User-Manual/Users-Manual-3567666

Well try this to start with: https://recoverit.wondershare.com/comput...-problems/fix-windows-error-code-0xc000000f.html

LED’s turning on just means the ports are getting power. First of all update your BIOS, if you haven’t done this already. Make sure the latest drivers are installed from the ASUS web site and don’t forget latest chipset driver from AMD: https://www.amd.com/en/support/chipsets/...-socket-am4/b550 May be uninstall the USB drivers, run a cleaning utility like Advanced System Care, Ccleaner, etc. reboot and reinstall drivers if Windows doesn’t automatically do so. How is it now? I can’t remember off hand where the settings are for the USB ports but just cruise through the BIOS/UEFI advanced screen. You tested all the USB devices on your laptop, right?

This might be a good time to mention that for electronics 99% isopropyl alcohol is safest and for disinfectant 70% is most effective. This web, though commercial, describes all the concentations and why best quite well. https://blog.gotopac.com/2017/05/15/why-is-70-isopropyl-alcohol-ipa-a-better-disinfectant-than-99-isopropanol-and-what-is-ipa-used-for/#When_Is_99_Isopropyl_Alcohol_Used

Hi Ross, It maybe simply be a compatibility issue. You don't say which model Ryzen 5. As far as I know your motherboard wont work with a 1st generation Ryzen 5 1600X, 1400. Look at the CPU Code on the box or the chip itself. Here's the CPU compatibility list: https://www.msi.com/Motherboard/support/...-PRO-VDH-MAX#support-cpu You could check your other components here as well.

Go to the hardware store and purchase a screw extractor. They are not expensive. Like this: https://www.supercheapauto.co.nz/p/sca-sca-screw-extractor-set-5-piece/104488.html Job done.

Keep this simple. Recheck the screen’s main connector. You may not have reconnected it properly or the connector needs cleaning. Does the laptop work with an external monitor connected? I presume you have tried tapping the “Brightness” Function key? Function Keys 1 Locate the function keys at the top of your screen. "F6" and "F7" control the brightness of the display. 2 Press "Fn-F6" repeatedly until the screen dims to an acceptable level. 3 Press "Fn-F7" to brighten the screen, which is useful if you dim it too much.

There is a slim chance some top-end data recovery software could help IF it is just a matter of the partition table being corrupted or (not good) there is a problem with the “all-in-one” circuit board. These “all-in-one” named brand external drives are bad news because they combine the drive and the USB circuit boards into only one so that if one dies they both die. When you replace it buy the external case and a standard drive separately (easy to upgrade as well). I have had only 5 drives die in over 35 years of experience as a professional tech. If money is an issue for you could try these freeware programs below. If you read the manual ‘Test Disk” is a good freeware tool for partitions: https://www.cgsecurity.org/wiki/TestDisk It is very “techie” and all text based, thus why studying the manual is important. For just specific file type recovery “Recuva” can be good. Easier user interface. https://www.ccleaner.com/recuva/download I've used this program successfully many times but it cost money:...

Just replace them as there could be other problems. If you must, then peel the label up and use a fine quality sewing machine oil and a get a tiny drop of the oil on the end of a pin or tooth pick and drop it on to the top of the bearing. NOT TOO MUCH! Remember, this is only a tempoary fix for a few days before you get the replacement fans