When screen goes black two possible problem are display assembly , power supply or battery connection are loosen.
ipad iphone won't turn on blank screen
Here you first remove battery check charging connector of battery 3 copper point which touch with pcb of your iphone. Clean it rub with cotton and insert battery again.
Charge iphone for 20 to 30 minute and power on it.
If this does not work then start your iphone in recovery mode and restore your iphone.
Start iphone in dfu or recovery mode.
For that first connect your iphone to computer via usb cable install latest itunes on your computer. Now press and hold sleep wake button or( in iphone 7 press and hold on off button) for 3 to 5 second and volume button for 5 second. Now your iphone screen goes black and on your itunes you will get pop up message that itunes is detected
SOURCE: apple laptop screen malfunction
Not to step in on an argument but the output side of a laptop inverter can be up to 1.5KV.. (or 1500 Volts AC).. Milliamps in current generally but they can shock you.. (Wont curl your hair for the most part).. Just a wake up if you handle incorrectley. Am Waiting for a customer to spill liquids in one of the new Air units so I can take apart and get my fingers into.. (Or Drop or worse).. Weve repaired a few of the New Black/Macbooks/Video as well as the whites and repaired more than too many of the old G-4 Ibook problems.. Will keep an eye out on these Now Hot-box Intel Models.. Failures are Inevetible in my opinion.
SOURCE: iphone only see apple logo and itunes logo in a dark screen after
If it got wet, you can bring it to any Apple Store. Nine times out of ten they will replace it for $150 to $200 dollars. Unless they determine it is a manufacturers defect and you are still under warranty, then you want have to pay anything. they will usually just replace it for you.
Otherwise, you may have to pay up to $200 for a replacement.
Hope this helps...Let me know...
enov8
SOURCE: Apple Cinema display goes BLACK after start-up
My G4 has a ADC & VGA on the same card. The VGA works but the ADC, is doing the same thing as you described. I am searching the web, and can not find an answer to this problem. George 3/21/2010
SOURCE: Stuck on black and white Apple logo screen
Hi,
Solution 1) Press Hold/Sleep & hold buttons at same time for 20 seconds, This may fix you problem.
If problem is still alive follow solution 2
Solution 2) Press Hold/Sleep & hold buttons at same time for 10 sec. & then leave only Hold/Sleep button keep home button pressed & connect you ipod to PC, That means you have to bring your ipod in DFU mode (Recovery mode) Check out this video for getting ipod touch in DFU mode http://www.youtube.com/watch?v=bITIiGswjFI
. itune must be run on PC.
It will ask you for restore. Accept Restore you ipod touch request by itune. Wait for few minutes while ipod being restored.
This process will solve your problem 100%. I have solved same problem for ipod touch. Follow this video http://www.youtube.com/watch?v=AQk4-krrNVk
Thanks.
If my solution help you please vote up me.
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