I have add some Glue on an old cubot p9 and yes, it stops the glass cracking to expand and keep the glass in place, but be sure that you will not glue the interior LCD while trying to glue the Digitizer. This will not be good, especially if you plan to reuse this LCD. If you have a lot of broken glass parts and the LCD shows behind the glass, or other pieces shown its risky to do it with super glue, just use removable soft transparent glue for PVC that is non corrosive, in such case..… If you have all the glass parts attached without gaps, you can do it to protect the digitizer to not crack more and keep in place its pieces. Always use Clear Glue and test it on other surfaces before.

-> Desmontaje del Magic Trackpad 2 It seems that you can do it , but the battery will not have the same capacity (battery drop quickly). There is very similar but not the same voltage. (drain battery also more quickly) Also check it might require to change the connectors to install it, might need soldering skills for that .... I don't recommend to do it for long last solution...

Please check here and there is some usb kexts 7a- We need kexts. We are using tones of kext from TMRJIJ - OS X Hackers (for example, Beta-USB-Kexts). To make things easy, you have them all zipped in this link: all-kexts. Download, unzip and copy them into /Volumes/Capitann/System/Library/Extensions/. USB Issue using this method: You need to have something connected to one of the USBs when booting if you want El Capitan to detect USB devices. It can be a small USB stick, for example. http://osxhackers.net/elcapitan.html

If it is 2 type of screens that can attach on these laptop, the best way to do it, is to disassembly carefully the screen assembly, and read the number that is in the other side of the screen. Then you can leave leave the laptop open in a safe place until the new screen comes in..

Yes you can do it if you can afford it, But the 1 tb SSD will be little expensive and a caddy to fit it... You can buy a smaller ssd and a dvd to hdd caddy and replace the dvd with new ssd (depending on your time)if you are not using the dvd any more...

Check your sim card on other phone, and If not work you can back up your data and clean to factory defaults. If not work you can call your carrier...

Yes , It need replacement. Try to get an original/genuine replacement

You can disassembly and clean the back keyboard membrane , but is difficult . Replace keyboard, is the easiest and 100% permanent fix.

unplug it from current , while have the print head a away, and try to get it. If there is no way to get it and not have issues printing, let it there , or you can use nursery syringe staff to pull it out or in, or add some alcohol to let the paper melt and become stickiness.

Hm ... Try to check if you push something on logic board when you insert or remove the old battery . Check if there is something that is continues to pushed it ... Try to take ti apart , check it out of chassis and reassembly it. If out of chassis make the same issue, there is a big chance of faulty logic board.