Since the latest version of OSX (entitled “macOS Sierra) has been yesterday, I wanted to install it on my Mac. I clicked on “download” in the Mac AppStore and the download started ; on the dedicated product page I could see the status bar filling up and finally stating “downloaded”… but then, nothing happened…
The download wouldn’t install…
I re-checked if macOS Sierra does support my Mac, it does. So I tried restarting the AppStore-app, I tried logging out my iCloud/AppStore-account & than logging back in, I tried rebooting my Mac, I tried rebooting in SafeMode, I tried FirstAid in the Disk Utility app, I tried clicking 10 times on the “downloaded” button repeatedly, I tried installing the DeBug-menus & cleaning the AppStore cache, I tried deleting the hidden AppStore downloads folder… and I tried various command line solutions found online in the Terminal app… nothing helped… I am still stuck with the button under the macOS Sierra icon saying “downloaded”… and nothing happens…
What can I do ?
You are probably not (really) going to like this answer, because this will set you back hours & hours, in which you can’t use your Mac ; but it’s the only way known to solve this, and you need to have a recent TimeMachine backup (or alike) for it :
shut down your Mac
disconnect all cables from your Mac (except your keyboard & mouse if you haven’t got a MacBook)
restart your Mac, and be quick to press the [CMD]+[R] key-combo during startup (your Mac will now start up in Recovery Mode)
in the “OS X Utilities” window that appears, select Restore From TimeMachine Backup and click Continue
in the next “Restore Your System” window, click Continue
now first make sure that your Mac can connect to your TimeMachine-harddisk by plugging in it’s USB-cable, plugging in your Ethernet-network-cable or connect to your WiFi router
then select the hard drive that has your TimeMachine backups on it and click Continue
in the next window, make sure you select the most recent backup that is from before you tried to download macOS Sierra ; only if you’re sure you’ve selected the right backup, proceed and click Continue
now wait (or do something more useful in the mean time) and wait and wait ; this is going to take hours and hours ; putting back a TimeMachine backup this way will go a a speed of about 30BG per hour, so if your hard drive is 500GB it may take you about 15 hours (yes, an entire night and an entire morning…)
finally, once the TimeMachine backup-reinstall is done, your Mac will restart… just let it
then, when logged in, open the Mac AppStore-app and notice that the button under the macOS Sierra now says “download” ; click on it
after the download has completed, you should now see the installer window popup on your screen… proceed from there…
Lately, whenever I try to take a photo with my iPhone, all I get is a black screen.
I am using the pre-installed Camera-app in iOS.
How can I get this fixed ?
There are two known software causes for this ‘black screen’-issue (so apart from hardware problems like broken iPhones) :
solution #1 :
If you have just used your camera in another app (e.g. WhatsApp) and you then switched to the standard iOS Camera.app, you might run into a black screen because the camera is still being claimed by the previous app…
The fix for this is easy : close down the iOS Camera.app and the other app that was using your camera, then re-open the iOS Camera.app ; to do so :
double-clicking on the Menu-button below the screen (in the next view you’ll be able to browse through windows of all open apps)
close all apps that are using your iPhone’s camera (by swiping the windows of those apps you want to close upward)
then return to normal view by clicking the Menu-button once
and when done, re-open the iOS Camera-app
solution #2 :
The black screen issue in Camera.app has been reported as a bug in earlier versions of iOS 9, so fixing it is simply done by updating your iPhone to the latest version of iOS 9 (or iOS 10).
To do so :
on your iPhone, go to Settings –> General –> Software Update
you will most likely see that you don’t have the latest version of iOS
I had left my MacBook Pro (Late 2008 running OSX 10.11 El_Capitan) running and had forgotten all about it… after completely recharging everything seemed to be okay on first sight, but it turned out that even though I could use the (internal) trackpad to move the cursor, I wasn’t responding at all to any clicking on it. I therefore had to connect a USB-mouse. Even after restarting, the trackpad was responsive to moving the cursor, but not to clicking…
Is my MacBook’s trackpad broken ? Or is there a software solution I could try ?
Even tough it’s not possible to completely rule out the scenario that your trackpad is broken, chances are you will be able to get it working properly again by an action that is normally referred to as “Resetting the PRAM”. Here’s how to do that :
shut down your MacBook
take out all cables and USB-sticks (this is just to rule out complications)
restart your MacBook using the POWER-button
immediately press and hold the key-combo [CDM]+[ALT]+[P]+[R]
make sure you do so while the screen is still black
when the screen lights up in light grey, you’ll hear the startup-chime
now release all your fingers from the keyboard before the Apple-logo appears
let your MacBook startup fully, then test if all works as expected
then reconnect any cables and USB-sticks needed
Note : no worries if you act too slowly or too quickly ; if you are too late to press the key-combo, just let your MacBook startup, then shut down and try again ; if you keep pressing the key-combo for too long, you will hear the startup-chime multiple times (you will have reset your PRAM multiple times, but that’s no problem) so just release the keyboard, and just let your MacBook startup and you’re done… 😉