My 2022 Razer Blade 14's battery started expanding, so I removed it. The laptop still works on the power brick, but...

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Yes, the smaller front screen is replaceable, although expensive and a bit tricky to DIY. If you want to attempt it yourself, Find a guide on YouTube and buy the screen. iFixit sells them for around $230 USD. If not, an electronics repair business could do it for you, although it would likely be more expensive.

From what I can see, it looks like your laptop is entirely solid state, meaning theoretically there is nothing that will be damaged by magnets as strong as those used for MagSafe. It's good that you're concerned about damaging something though. Your current magnet placement is fine, but you could install it anywhere along the top edge of the screen and be ok. Lower down from there, closer to the hinge would be over the computer's motherboard, but the strength of the magnets will be significantly lower through all the laptop's layers. Hope this helps!

I have some experience with those aftermarket OLED panels with the regular S21 5G! (my model is the SM-G991U) The display I purchased came with the OLED installed on a new midframe, and claimed to be compatible with all S21 models, including the SM-G991B. I had zero issues with the install, and the display worked as expected. The quality was a bit lackluster for how much I paid for it, but it got the phone working again which is all I was worried about. I'm not entirely sure if the same is true for the S21+ 5G, but I would assume the additional cable mentioned is for the optional 5G antennas. On the S21, it is a modular component that is installed into the midframe with a couple screws. (they are also held down with adhesive so remove them with caution) I believe all models of the S21 and 21+ have cutouts for these antennas, regardless of whether they came installed from the factory or not. Hope this helps!

Sin muchos detalles, es difícil determinar el problema, pero asegúrate de tener la última actualización de Android. Ve a configuración y busca "actualización de software". Si ya tienes la última actualización, ve a Google Play y asegúrate de que YouTube esté actualizado.

If you haven't already, try replacing the batteries of the remote, and check the battery terminals for corrosion. Even if you see none, use sandpaper, nail file, or some abrasive to clean the terminals. Also check to make sure nothing is obstructing the IR sender on the remote and the IR receiver on the TV. If all else fails, a new remote may be in order.

Hmmm… sounds familiar to a problem I had with my Samsung Galaxy S4 phone, and the issue was that the micro power button had broken away from the motherboard, so the device still worked normally, but I couldn’t power it on or go into recovery mode. I don’t know one hundred percent if this is the same problem you’re having, but if you are able to take apart your tablet remote, inspect the power button its self. see if there are any breakages in solder or if its a ribbon cable, see if it’s ripped anywhere. but if the power button is still showing signs of working, you may have a more deep-seated problem on your hands. hope this was helpful!