MacBook Pro :: Cannot Turn On Despite SMC And PRAM Resets And New Battery
Dec 10, 2014
I have a macbook pro that is simply dead. I have tried an SMC reset, a PRAM reset, and I bought a new battery. I see the green lights on the back of my battery and the power cord is an apple cord that appears to be just fine. I have also tried to power on the computer with the power cord plugged in but the battery out.
Worth noting that I do not hear any fans, any clicks, or *any* indication that the computer is trying to power up. The only signs of electricity are the green lights on the battery and the small charging light one sees on the cord when plugged in to the computer.
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Dec 8, 2014
My MacBook Air has required a PRAM reset twice recently. Why is this? What can I do to prevent this?
Info:
MacBook Air, iOS 8.1
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Jun 27, 2012
I have a mid 2011 Macbook Pro that has been shutting down randomly. It'll have a full battery, but shut down when I unplug it or even sometimes when it's still plugged in. Every time I start it up again, the date is changed to Jan. 1 2008 and there's a notification that because it's set to that date, some applications may respond "erratically". It did this for about 2 weeks, then was back to working fine for about a month and now it's started up again.
Today when I turned it back on after it shut down, a notification said to rebuild the iPhoto library. I didn't really know what it meant so I clicked OK because I thought it would help. Instead it erased my entire iPhoto library and shut down again.
Info:
MacBook Pro, Mac OS X (10.6.8)
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Oct 19, 2009
I think my PRAM battery is dead (date resets to January 1st 1970 when started up with main battery removed) but I can't find a replacement PRAM anywhere (I'm in the UK). According to iFixit the part number is 820-1686-A - is this the only PRAM module that will work in my machine? (I've seen lots of other similar looking parts on eBay, but with different part numbers). Also, is it not possible to actually just replace the battery, not the whole circuitboard? It looks like a regular watch battery I could pick up for $5 from the pic.
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Jul 28, 2008
one of my Al Powerbooks decided to kernel panic twice in the past two days and both times fail to start up afterwards. The symptoms would be that when I pushed the power button, I wouldn't hear the Apple startup sound and it would just sit there.
Well, after a few tries and some sadness, I decided to remove the PRAM battery card and voila, computer boots up perfectly! This has actually happened twice (removed PRAM card, booted up, then put PRAM card back in, then eventually exact same situation occurred again), does anyone know if a PRAM battery card can possibly wreak suck havok on a G4 running Leopard.
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Apr 4, 2012
Now normally I wouldn't expect it in an under 4 year old machine, but the normal battery is working as expected. However, when I'm not plugged into power, my WiFi doesn't always reconnect, and when it does, the internet doesn't seem to connect either 90% of the time. When I'm plugged into power, no problem. 3 other machines on the same wireless network have no issues with it, though my cable company says they are detecting intermittent signal loss, which I can't reproduce on any other machine. The other reason I believe it is the PRAM battery and not the main battery, is during one reboot, the date reset itself to year 2000. Once I managed to reconnect the internet, I was able to set the date & time to the time server.
Info:
10.7.1 iMac 5,1 MacBook Pro 3,1, Mac OS X (10.7.1)
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Apr 3, 2012
How do you locate and/or change the PRAM battery in an iMac G5 (iSight)?
Info:
iMac, Mac OS X (10.5.8), PPC, 20", G5
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Apr 2, 2012
I have an early 2008 non-unibody MacBook Pro. For about a year now, the status of the battery has been "replace soon." I was still getting a pretty good amount of time off of one charge so I wasn't too worried. This past Saturday morning, I woke up, checked the battery indicator lights on my computer (it had been sleeping since the day before) and it said it had about 60% percent so I opened it. I was on the Internet for about 10 minutes before it shut off without warning.
It wouldn't turn back on when I pressed the power button, so I plugged it in and it turned back on. When I checked, the battery status was "replace now." After using it, I turned it back off and left for NYC for the weekend and didn't bring it with me. When I got home last night, I plugged it in and tried turning it on with no luck. The battery indicator light was flashing one light, so I just assumed it would need to charge for a bit before it would turn back on. After about two hours, when I went to bed, it still was flashing just one light. I kept it plugged in over night, and this morning when I checked it, the battery indicator lights showed that it was fully charged, but it still wouldn't turn on. I still kept it plugged in throughout the day just in case, but it still won't turn on even though all the lights are lit. Is the battery just showing me false information, or should I be worried about more than just the battery?
Info:
2008 MacBook pro
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Jun 22, 2007
My Powerbook will not power on. I have followed some instructions on disconnecting the PRAM battery and that did not work, any ideas? I just stopped coming on without any explination.
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Sep 12, 2010
Is there a way to turn off my macbook pro when it goes to sleep because of the low battery? Second question: is there some sort of problems if I carry my MBP (or tip it over, ie to clean it) while sleeping? I'm afraid that something might go wrong with the HDD or sth else.
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Jun 8, 2012
I have a 2007 Macbook Pro that's still been running great. My battery starting going a few years ago and then completely crapped out about a year ago. I never replaced it and just kept it in there. I finally went to replacae it today by buying a Rayovac battery from a local Batteries Plus store. We popped it into my Macbook Pro and it wouldn't turn on. We plugged it into a charger and it turned on but the battery icon had an "X" through it. We tried another battery and same thing. But when we unplugged the charger, the computer stayed on with the battery power. However, it acted as though it did not detect the battery in there and would not show a precentage charge or estimated time left.
Info:
MacBook Pro
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Dec 27, 2009
I just got my MacBook pro returned 4 days ago after the hard drive was replaced because the brightness was on minimum and had to be reboot 15 times so it could be changed. I asked apple to replace my battery because it had 1 minute battery life and it had 47 cycles but they didn't. My mac didn't have enough power to start speakers so I rebooted but my mac went into sleep mode and wouldn't come out. I had to force shut down. I tried turning it on but it wouldn't turn on, I tried taking out battery etc and pressed power button 5 secs but nothing changed.
I live 100 miles away from apple repair. I wrote this on my iPod touch. I took it to apple repair and it turned on. I had been using a 65 watt charging cable for a MacBook, I need a 85 watt charging cable. It was 100 miles away and has been posted to me today. apple told me that a MacBook pro requires 80 watt charging cable, and 65 watt can be bad for the mac and will only work if the battery isn't dead. my battery was dead when I tried to turn it on.
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Jul 18, 2010
I removed my battery and plugged the power cord, the small green light doesn't come and the mac book pro doesn't turn on.
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May 28, 2012
So I was working on my MacBook Pro making a slide show and my other computer needed some power so I unplugged my Pro and plugged it into my other computer. After about five minutes my MacBook Pro just shut down. I don't know what happened, but the power is full and when I press the power button it doesn't do anything. It's almost like the power button doesn't even work.
Info:
MacBookPro
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Jan 7, 2011
I'm going to purchase a macbook pro at some point, probably when the new announcement happens, but my question is: while the laptop is in sleep mode, does the battery turn off? Like, does it still consume energy while in sleep mode?
Probably a dumb question, but I know nothing about laptops.Never had a laptop before (currently using a imac g5 from 2006).
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May 13, 2010
About a month ago I bought one of the new Macbook Pros, a 15 inch i7 version with highres matte screen.This morning I went to turn on my computer and I thought I had turned it off last night, but it turns out that I hadn't, so when I hit the start button it woke up and then promptly shut off. I haven't been able to get it to turn on since. Absolutely nothing happens when I push the start button, whether I have it plugged into battery power or not.
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Jul 22, 2010
I don't have a warranty anymore. I got my Mac three and a half years ago. At first two days ago, I had a hard time turning it on. The charger didn't have a glowing green light. Then, once I got it on, the battery sign said it wasn't charging, had an X or something. But I got by by just leaving the charger on and it must have been charging some because I could use it for more hours than my usual 100% charged. My battery have always been damn awful because of the edition. But last night, I couldn't get it to turn on at all. The fan makes noises and so does the computer and sometimes, I can see very faintly that it goes to the sign-in. It could just be out of batteries and doesn't turn all the way on, just shuts down after a minute.
But since I don't have warranty, I am wondering how much it'd be to visit the Apple Store. And also, if anyone know of any way to fix it...could it be some other issue aside from the battery? This happened right after a storm that we had while I was at work and left it plugged on. But there was no lightning.
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Feb 2, 2012
When I turn on my Macbook it does not go past the initial screen with an apple and spinning wheel. I took out the battery but am wondering if I need to do something special when turning it on again?
Info:MacBook (13-inch Aluminum Late 2008)
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Apr 18, 2012
How do I turn off apps and software to get more battery life on my MacBook?
Info:
MacBook, Mac OS X (10.7.3)
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Jun 15, 2012
I let my new mbp(mid 2012) battery run down. It was on, I walked away for one minute and came back and the mbp was shut down. I plugged in charger and the mbp won't turn on at all. I got it on Tuesday so it is brand new.
Info:
MacBook
Pro, Mac OS X (10.7.4)
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Jun 5, 2012
My macbook pro 13" Mid 2010 model will simply not turn on! I tried does SMC and PRAM but still no results. The Macbook gives me 3 green blinking lights on the battery indicator and nothing else. I already tried switching the ram for a dead or faulty ram but still nothing. Also the power adapter doesn't seem to want to work. When I plug it to the macbook, I can hear small sparks each time, looking at it, there are some black marks on both the charger and the mac. [URL]s
Info:
MacBook Pro
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Jun 12, 2012
My battery is fully charged but wont turn on without the charger.It also shuts down after the charger is unplugged.Does anyone have this issue?
Info:
MacBook Pro, iOS 5.1.1
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Jun 26, 2012
This morning, my macbook pro laptop won't turn on even though the battery is charged and power cord is working. it worked fine last night. what can i do?
Info:
MacBook
Pro, Mac OS X (10.5.8)
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May 1, 2010
Hopefully this goes here and not the "help" forum. I'm coming to you guys for help because I'm not use to solving Mac-related issues. I'm more of a PC guy usually.
My girlfriend's Macbook (older white one. Bought in 2008, but I believe it was refurbished. I think it's a 13" but I'm not positive) fell a few feet yesterday (it was closed, but hibernating), and I thought it was fine until later that night stuff kept crashing on her and it reset a couple of times. Then it refused to boot up. Finally it started beeping at her 3 times instead of starting up, so I knew it had to be a RAM issue. I figured maybe it got knocked loose.
So I took out the RAM and put it back in. No dice, so I tried it again. This time the Mac booted up like normal. I thought that was it.
Except now, every time she moves the Mac much at all (which is somewhat important, being a laptop and all) something apparently gets jostled and the computer resets. One of these times, it beeped at her three times again, but I was able to boot it back up without having to touch the RAM again.
Any ideas of what the issue or possible fix could be? She's running OS X. It's up and running fine now but I'm afraid to move it too much.
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Oct 12, 2008
If I drain my battery all the way down then power up my system, the clock will reset back to 2001 and my power management settings will reset as well. I expected that my macbook air would have a little battery to keep all this information even if the battery power runs out, but either mine is broken or this is normal for the mba. Does anyone else have this problem? Is this normal or is mine broken?
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Mar 9, 2012
I have this photo for my user display picture, and i've got it cropped because I only want part of it as my display picture.I have to keep resetting it all the time, and its beginning to annoy me a lot.I think its everytime I turn my computer off by holding the power button for 5 seconds (I think) for when my computer freezes or something.Please tell me how to stop this happening & why its happening.If you need the info about it then here it is:Processor 2.26 GHz Intel Core 2 DuoMemory 8 GB 1067 MHz DDR3Graphics NVIDIA GeForce 9400M 256 MBSoftware Mac OS X Lion 10.7.2 (11C74)13-inch, Mid 2009
Info:
MacBook Pro, Mac OS X (10.7.2)
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Jun 18, 2012
Lately whenever i start up my computer the clock changes to 2000 and some random time, there are also about 5 pop-ups from finder asking me if i want to allow programs. I fix the clock problem by going into the time settings and click the unlock button but i have to do this everytime i start up my mac. I attached a screenshot of what pop ups come up.
Info:
MacBook Pro (13-inch Mid 2009), Mac OS X (10.6.8)
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Feb 13, 2010
I am seriously considering purchasing one of the new unibody MBP's with the new "7 hour" battery. Just a couple quick questions for you all: Do you get 7 hours when you turn wifi off, the screen down to 1/3 brightness, don't use the CD drive/etc, or does it actually last 6-7 hours in normal use (surfing web, screen really bright, backlit keyboard on)? Has anyone experienced a degradation in battery life after a bunch of cycles? I notice apple claims that the new battery will last 5 years, yet they don't warranty it for more than a year. That does not sound good to me. Opinions?
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Apr 2, 2009
I am using XP Pro under bootcamp on a Macbook Aluminum 2.0 Ghz. I was wondering if there was a way to turn off bluetooth to conserve battery life. Also, there is a major difference in battery life between Windows and OS X. In OS X I get about 4 - 5 Hours. Whereas when I'm in XP I get about 2 - 3 Hours. Is this normal?
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Apr 2, 2012
my laptop (macbook pro) doesn't turn on, because the battery doesn't work (may be because of moisture), and the 7 battery lights on the left side are off, and when I plug the charger in, the light on the magnetic socket turns on so dim ..
Info:
MacBook Pro, Mac OS X (10.7.3), MC 700
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