Oli

By the looks of things they are the same chip as it appears that the N11P-GE1-W-A3 is just a more specific code for the NVIDIA GeForce GT 330M graphics chip as it is used in other laptops other than just apple. If you wanted to play it safe though it would make sense just to get a like for like replacement as they seem easy enough to find.

Your laptop with only have a digitizer if it is touch screen, if it is then the digitizer normally just sits on top of the LCD and they will probably come out together but be separable. There is also a slim chance that the digitizer and LCD are fused together which would mean that they would both have to be replaced together.

It looks like the maximum speed of memory which the motherboard will support is 1333mhz according to the specs shown on the Asus website https://www.asus.com/Notebooks/K53SV/spe...

Looking at the nexus 2nd generation (I assume that is what you mean by 2014 model) tear down guide shown in the link below you can see that the micro USB port is connected to the daughter board located at the bottom of the device. The only way to replace the USB port is to replace this board. There is no point trying to solder on a new port as it would be near impossible and you may also ruin the board unless you are really good at soldering and have the right equipment. You best bet is to try and find a cheap second hand daughter board for it if possible. Nexus 7 2nd Generation Teardown

You will need to replace the I/O cable assemble as it contains the micro USB socket used for charging - the link for the I/O replacement guide for the original nexus 7 can be found below Nexus 7 I/O Assembly Cable Replacement

It may be a software fault - you can try uninstalling and reinstalling the keyboard driver or doing a factory reset to make sure its not another application causing the problem. If this fails it is probably a hardware fault (e.g. the keyboard itself) You could try keyboard cleaning products / switch cleaner. If that doesn't work then the keyboard will need replaced and if a new keyboard doesn't fix it it may be a motherboard problem - and a new motherboard would properly cost more than the computer is worth.

Make sure the drivers for the camera are installed. Go to device manager to see if the laptop detects the camera. You should go to Dells website to install and upgrade your drivers. The link below takes you to Dells support page - you can get drivers from there. http://www.dell.com/support/drivers/us/e...

Yes When you dropped the phone the speaker was probably damaged or its connections were ripped off the board. Check everything else works first to confirm it was not the motherboard damaged in the fall. If the wire has come loose and you know how to solder then you may be able to repair it yourself.

You may find that if the computer does not start then the cap light may be signalling what is wrong. Sometimes on computers (Not sure about Apple) if the computer will not start the caps light sometimes flashes in a unique pattern to indicate the issue. Look to see if it flashes in any sort or pattern.

If you replace the motherboard then EVERYTHING will be lost. To be honest unless you can source a really cheap motherboard and screen then it is probably not worth the cost as a new phone would be a lot cheaper.

If nothing at all was happening when the computer was switched on then certainly its highly likely that the power supply is bad although it could also be a faulty motherboard.