You need to connect up the ignition wire, depending on your stereo there are 3 wires, 1 red for constant power, 2 yellow for ignition and 3 black for ground. if everything looks correct then swap the red and yellow wire around. I know with pioneer stereos in some cars those specific wires need swapping. Then the stereo will will come on automatically when ignition is turned on.

You need to go into the manual for your car and read exactly what fuse is for the starter and check that all the fuses are there and in there correct location. But nothing you cant sort, 1st thing is to relax, he could have pulled the starter fuse, check what one that is and make sure its there, in fact do this for every fuse. Lots of website diagrams will tell you exactly what fuse is meant to be in your car with location and descriptions. If you have a diagnostic scanner then use this to check for fault codes on your ECU through the OBDII port. There could be a code that’s registered that needs clearing. Also check the relay sections and look for any evidence of a missing relay, relays usually don’t get changed often so if hes pulled one then that area should look a lot cleaner indicating one has been freshly pulled.

this happens when your nozzle is too close to the bed, the filament just builds up and stops print altogether, i would check bed leveling, Also check how old your filament is as over time they absorb moisture and become useless, last thing is clean your nozzle out if this doesn’t work, replace nozzle.

The glass is coming away from the plastic bezel because the glue is weak, that part of the screen is glued down with double sided thin tape. It would need taking off and re gluing. or you could just put a case over the whole thing that encloses the phone.

i know this is a old post, but the problem is common, it is the instrument cluster. the solder joints on the back of the 32 pin connector fail, the fix is not hard for someone who knows how to use a soldering iron, just need to carefully remove clocks and take apart the cluster, then re flow the 32 pins with fresh solder, then a spray over the whole board with electrical contact cleaner using a brush to lightly clean every component. once this is done, reassemble the cluster. problem solved. if you do not want to do this, send it away there are people on eBay doing this for around £50. Just type in focus cluster repair.