I have a late 2010 MacBook Air.Unfortunately, I'm in a country without an Apple store or any kind of official Apple support (no phone number to call).
2 days ago, I plugged in a little USB modem device (wireless is rare here) and my laptop shut down suddenly. It refused to restart at all until I did an SMC reset and then it was working fine (including with the USB modem plugged in).
However, the next day, the same shut-down occurred (when I plugged in the modem again) and now SMC reset is not doing anything. I've held down the start button for a very long time and there aren't any signs of life. The light on the charger shows that it is charging when I plug it in.
Recently my macbook pro battery stopped working, i took it to the apple service and battery has to be replaced which they will do so soon. They told me i can still use it on the power cord. However when i started it up the screen has a spinning wheel and a loading bar underneath the apple logo, which it never had before, and when the bar is 1/3 done the computer just shuts down every single time at the exact same place.
Fairly new MacBook Pro with OXLion. When I try to turn on the computer, the startup noise and screen appear (grey loading screenwith apple icon). A loading bar at the bottom of the screen fills about a third up, then the computer shuts down again.
I've got a strange issue with my PowerMac dual 1.8GhZ and I can't figure out where it's coming from.Last Saturday I experienced a Kernell Panic while using Safari and the Dictionary (MacOS 10.5.1).Since then, whenever I try to start my computer, it shuts itself down while the grey screen with the Apple logo is on screen. However, this isn't always the case:I can use my computer 'normally' if I press the option key at start-up and manually choose my startup disk.
I can boot from a Panther or Tiger installation disk, but not Leopard.If I try the hardware test the computer shuts itself down in the middle of the test.TechTool works and didn't find any issues with my computer. Nor did Disk Utility.I tried to erase both my internal hard-drives and do a clean install of Tiger, but the problem is still there (I have to press option at startup).I tried to reset the PRAM and Cuda/PMA. Doesn't resolve the issue.When I tick 'Restart automatically after power failure' in Energy Saver my Mac will indeed restart, meaning it thinks there was a power failure.Any idea what it might be? And why it only happens in certain situations?Do you think it's a hardware or a software issue?
Information: PowerMac G5 dual 1.8GhZ Mac OS X (10.5.1)
My comp. has worked perfectly, Then I installed some updates, Itunes i think? And the comp. Shut down, and when it restarts it works for a min or two, then freezes, and i get the beach ball, that just spins around and around forever.
if I don't try to open anything, or do anything when i restart it, it will just shut down, and restart, then when it comes to the Grey screen with the apple and the little circle below it, the circle looks all pixilated, and just freezes
that is the version its on (Taken two days ago, and sent to a buddy for other reasons completely)
This has been a great computer - bought new in 2004. Recently started to click "off" as it was just powering up. I thought there was a bug - so did a clean and install for OS X - but still does it. The only way to start computer is to hold the Options & Alt key and P and R key at start up until I hear 6 dinging noises of start up (why six is the magic number I don't know. But it is the only combo that works!). Once it is up and running no problems.
My Mac attempts to start up and automatically shuts down on it's own. It continues to start and stop for several minutes and finally boots up. Once it's up it works OK. I've had it in to the Mac store and they tell me it's probably the power supply, but after leaving it on all weekend it seemed to work OK so they didn't do anything. After I brought it home it is still acting in the same way. It's only on trying to start up that it cycles through the start - stop action. Once I turn it off it's the same problem on trying to start again. Does this sound like a power supply problem?
when i start my imac it shows the apple logo, then the circle starts spinning and after a couple minutes it just shuts off. BTW i have windows on it as well so when i hold option it lets me open windows but not os
My battery needed replacing for a couple of months before i dropped it from about knee level onto a sidewalk. After the drop I got the not charging icon. I thought maybe the battery had just finally died. so I did not panic about the no charge. The laptop works fine when plugged in to power with the old battery on or no battery at all. Not at all when unplugged.
When I put the brand new battery on the lap top, the computer shuts down halfway through boot up. I tried holding the power button down through boot up reset, as well as removing all power (plug and battery) and holding down the power button for 10 seconds reset.
My computer won't turn on. Earlier today while playin music it just paused itself. I minute later it resumed. Then tonight it just shut off instead of sleeping and now it won't start. All I can get if I'm lucky is the start up chime and a super quick flash of a white screen.
My computer is a MacBook Pro running Mac OS X Version 10.7.3, 2.2 GHz Intel Core i7 with 4GB memory. Start-up has become somewhat erratic. Consistently, if I close the lid on the computer it won't restart when I reopen it. I'll have to hold the power button down for about 15 seconds, let up and then press it again. Sometimes restarting after a shutdown the computer will go through the long start-up I associate with a crash shutdown. Sometimes login start-up items don't start up. Sometimes I have to click somewhere on the screen to make the menu bar at the top of the screen visible. Overall, unexpected things keep happening. Although I don't think it probably relates, Chrome is my primary browser.
Whenever I take the hard drive out my laptop just stops working and it's back to normal when I put the hard drive in, is there a way for me to use my laptop without having to physically have my start up disk (hard drive) plugged into my laptop?
My computer started to shut itself down without warning at around 10% battery power when my battery was bad. I bought a new battery, which works fine, but the problem persists. The computer does never tell me that battery is low or anything; it simply shuts down at 10% without warning and I can't seem to be able to do anything about it.
This started about 2 days ago, there was no apparent signs of such a thing going to happen.
My MacBook suddenly shuts down in the middle of my work. Shut down as in a sudden shut down, as if the battery was removed. There is no shutdown process, the whole screen just goes black. I've realized that this happens more recently when watching youtube videos, playing flash games etc.
Example : Computer dies in 10 minutes when watching videos/playing games. Computer dies in a few hours or NEVER when just typing, surfing.
It doesn't seem to be a battery problem. I've removed the battery and had my Macbook run on the Charger before, and it still died on me...
Battery Installed:Yes First low level warning:No Full Charge Capacity (mAh):4390 Remaining Capacity (mAh):2128 Amperage (mA):-1720 Voltage (mV):11081 Cycle Count:495
Mac OSX 10.4.11
1.83 GHz Intel Core 2 Duo 1.25GB 667 MHz DDR2 SDRAM I run bootcamp, same problem on my other operating system
Model Name:MacBook Model Identifier:MacBook2,1 Processor Name:Intel Core 2 Duo Processor Speed:1.83 GHz Number Of Processors:1 Total Number Of Cores:2 L2 Cache (per processor):2 MB Memory:1.25 GB Bus Speed:667 MHz Boot ROM Version:MB21.00A5.B07 SMC Version:1.13f3 Serial Number:4H7110U8WGK Sudden Motion Sensor: State:Enabled
As of a few days ago my MacBook Pro has been acting oddly. When I shut the clamshell and reopen it again a few minutes (or hours) later it's hot and makes sounds as if it is working hard at something but the display will not turn on. I usually end up turning it off anf then on again via the power button. I have a wireless keyboard attached due to damage to the laptop's own keyboard, but use the laptop's power button (which still functions). I've reattached, and reset, the keyboard a few times in case that was the problem but had no luck. It doesn't hinder my usage of the computer once it's on again but it is strange.
I have a Macbook pro (OS 10.8.6), when I put it to sleep by closing the lid or explicitly choosing sleep option,it goes to sleep, but when I open the lid, the machine shutsdown. I have to press the power button for around 30 seconds to start the machine. In the logs I could find--Shutdown due to error code --79 and sleep failure shutdown.