If it’s two years old, you need to either replace the watch itself or the battery. As we all know, batteries degrade overtime with charging and daily usage. The batteries in smart watches are microscopically tiny so they have more of a chance of dying quickly. I’m honestly surprised that it’s lasted two years! Usually things like Apple Watches, Fitbits and the lot work fine for about a year till’ they need a battery replacement. Oh, and the reason the heart rate sensor wont work is because the battery is not providing enough power for it to fully function. Unless you would like to replace the battery yourself or get a repair shop todo it, you are much better off getting a new smartwatch and selling this one for parts on eBay so it doesn’t go to landfill. You could also try re-installing FitOS (FitBits Operating System) via the supplied USB cable. Hope this clears up where you should go from here.

I would like to know what it means to be ‘blocking you’ If it’s not letting you put the brightness and volume up past a certain threshold then a Reinstall of MacOS will be required.

You probably need to install something like Mac’s fan control to get it working properly. Apple is very particular about its fan curve. Sometimes a replacement can ultimately screw up the fan speeds in the OS causing them to run slower as they’re trying not to overheat. The MacOS version should have nothing todo with it you just need to control the fan speeds yourself Via fan speed control app.

Please, DONOT attempt to glue this on. It wont work and will simply just make repair x10 harder. (1) There are a few things you can do before deciding to get a replacement Mobo. If you’re comfortable with soldering, you can purchase seperate keyboard connectors from anywhere like eBay. I’ve also linked a guide here to replacing a 2011 Macbook Pro Keyboard Connector: https://www.youtube.com/watch?v=FltXSUH3.... If you have no idea what you’re about todo with your device, best to leave things be or take it to a trusted repair shop with the keyboard connector part so they can solider it on for you. (2) A replacement motherboard is always an option. Keep in mind, you will have to swap parts like the Fan,RAM, HDD etc. to the new one, once it has arrived. While buying a new Macbook Pro is an option it’s best to take these steps first before declaring it fully dead and unusuable.

Alright this is a pretty easy fix! Here a few things you can try. I have a feeling that the launcher your phone uses either may not be setup correctly in settings or is corrupt. Don’t worry tho here are a few tricks! (1) In the most recent App you’ve managed to enter go to the top of the phone and swipe down. This should bring up the control centre which has brightness controls etc. You should also see a settings toggle in the control centre. You may need to just swipe left to go on to the next page of the control centre to find the setting toggle. Once clicked, in your settings app you want to search for ‘launcher’ - This should bring up default apps, click on it; Launcher; And set the MotoLauncher as default. It should look something like This: (1) If this doesn’t work, don’t worry! Do the same process but click on apps; Playstore and click ‘open’. You will want to install something called ‘Nova Launcher’. Once installed, you should be able to open it. It should look something along the lines of your old...

Buy a new controller.

A few solutions (1) Gently open up the phone will the two T2 Screws at the bottom and the adhesive (which if not already opened will need a bit of heating prying) but there is a repair guide on here on how to safely open it. Once seated, if you don't want to buy the specific adhesive for the phone which is a bit of the pain in the butt to get a hold of, just use something along the lines of No nails glue or a little super glue. Sounds crazy but as long as the button can click you should be good. (2) If you're are little to concerned about the methord above, you can always just leave it! As long as the home button actually works along with TouchID you should be good. It doesn't let dust or water in or anything. Plus Apple will stop supporting this phone in a year or so, so no point doing a full blown repair on it.

Have you seated everything correctly? has the display been calibrated by the IMEI swap tool?

It really depends wether the charger you're using is wireless or via USB. If you're using wireless charging, the adhesive on the charger that holds the magnetic coil vertically might if had the old degraded adhesive treatment which could move the wireless charger out of alignment for the tablet to read. And everytime you tap the charger, it moves the tablet a little meaning it wont be read easily. On the other hand, if its the USB port you're using, this could be a problem with the tablet accepting the USB port. It could be a mixture of it not supplying the right current anymore or the USB port being doddgy and moving too. I also dont see why you need that specific stand - there are tons of third-party charging stands out there....

Volume down + Power button. If you're signed into the Google Account, just ask the person you got the tablet from to remove it or contact Google if it's your account and forgot the password.