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When I switch my Mac on, I hear the chime and then there’s a dim background light on the screen and it stays that way, so basically the screen stays black! Nothing happens and it doesn’t show anything at ALL!! The only thing I can do is to press and hold the power button for a few sec to switch my Mac off! (*This whole issue happened quite suddenly after a restart!) Things that I’ve already tried: Using all boot key-combinations —> Only SMC reset works which hasn’t resolved the issue! Literally nothing happens with the rest of the combinations!Unpluggin and replugging the display cable! —> Didn’t help!Using another display with the main display cable unplugged —-> Same dim background light on the secondary display!! Just like its own display! So —> The problem is definitely NOT the MBP’s display!Using a bootable storage instead of the hard drive! —-> didn’t work!PLEASE HELP ME OUT WITH THIS ISSUE GUYS!! I REALLY NEED my laptop!

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Are you able to get into Target Disk Mode after doing a SMC reset? References: Mac startup key combinationsHow to reset the System Management Controller (SMC) on your Mac If your system is able to get into Target Disk Mode with the FireWire and Thunderbolt icons on the screen your GPU has failed. At least you can get to your system via a second Mac to get your files, Update (07/25/2019) Well its time to throw in the towel! You need a new logic board. Here’s the iFixit guide MacBook Pro 13" Unibody Late 2011 Logic Board Replacement presently iFixit is out of stock so you’ll need to do a bit of hunting to get a replacement board. Here’s a listing of boards from TheBookYard in the UK that will work in your system Logic boards for Apple MB Pro Unibody 13" Early/Late 2011Logic boards for Apple MB Pro Unibody 13" Mid 2012 The 2012 boards have a slightly narrower LVDS connector, a little filing of the cable connectors tang is all that’s needed to make it work. Make sure you file equally on each side and it is ever so slight needed.