: Early-2011 13-in. MacBook Pro startup problem


yeeeha
Dec 31st, 2018, 03:41 AM
My friend came to town to spend her holiday and she took her early-2011 13-in. MBP along to show me the startup problem. She said that about two months ago the machine suddenly could not boot and remained unbootable since.

When I turned on her MBP, the startup status bar looked different. There was a thick gray bar below the Apple logo, the same gray status bar that appeared after applying a firmware and security update. The usual startup status bar is a thinner black line. The gray status bar progressed to about halfway then the screen went black and nothing happened after that as if the machine shut itself down. After waiting a few minutes I pressed the power button again and the booting started all over then failed pretty much at the same spot.

I then used target mode to connect her machine to my early-2011 15-in. MBP. It took quite a few minutes before the icon of the SSD in her machine appeared on my Desktop along with the error message that the drive was unbootable but I could retrieve the files in there. The SSD in her MBP has OS 10.9 installed. I copied all the files that she wanted to save to my MBP.

Since my MBP could read her SSD, I launched Disk Utility to verify the problematic drive. There was a long list of errors with its directory. I did not attempt the repair as I was set to format the SSD and install OS 10.12 on it.

After shutting down her MBP, I removed the SSD and put one of my spare HDD with OS 10.12 in the machine. The next startup was successfully after more than five minutes. Her MBP was on a/c power and the little light showed green. But the battery indicator showed zero percent juice with the "Replace Now" message. Looked like the battery was dead. The cursor movement was jittery and the overall performance was very sluggish like slow motion.

Just to satisfy me that there wasn't a problem that prevented the battery to recharge, I followed the instructions to remove the battery and held the power button down for 20 seconds to reset the SMC. I inserted the battery back in her MBP, took out the OS 10.12 HDD and put in the working OS 10.12 SSD in my MBP in her machine. I also reset NVRAM on the next restart. The startup was a little faster until the last part which took perhaps two minutes. Finally the Desktop appeared but the cursor movement and performance remained sluggish.

Could a battery that suddenly died cause a directory corruption of the OS? Does a dead battery cause the sluggish performance? Would a new battery fix the performance problem?

But the bigger question is whether it is worthwhile to replace the battery even though everything else with the machine appears to be fine. This is a 2011 model and Apple classifies it as vintage. It won't run OS 10.14 and above. My friend no longer needs her MBP. But I hate to throw out a working machine.

pm-r
Dec 31st, 2018, 04:51 PM
But the bigger question is whether it is worthwhile to replace the battery even though everything else with the machine appears to be fine. This is a 2011 model and Apple classifies it as vintage. It won't run OS 10.14 and above. My friend no longer needs her MBP. But I hate to throw out a working machine.


If the OS thinks there is no battery because it's so discharged or kaput, even if it is plugged into AC power it will operate at a much reduced rate.

There should be lots of life left in that Mac with a new replacement battery but there's no need to buy one from Apple and their out there exaggerated high price. I have purchased a number of replacement batteries from reliable sellers from both Amazon.CA and eBay.ca at a fraction of Apples price. Besides which, Apple would probably not supply a battery for that age Mac anyway.

PS: A MBPro battery does not normally just "suddenly die"!!! And yes, anything can happen in the computer world, even abnormal stuff!!
Could a battery that suddenly died cause a directory corruption of the OS?




- Patrick
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rgray
Dec 31st, 2018, 08:29 PM
.......... I have purchased a number of replacement batteries from reliable sellers from both Amazon.CA and eBay.ca at a fraction of Apples price.

Can you be a bit more specific about .ca suppliers of reliable batteries??? (for my 2010 MBP 13")

pm-r
Dec 31st, 2018, 11:20 PM
Can you be a bit more specific about .ca suppliers of reliable batteries??? (for my 2010 MBP 13")


Whether using amazon.ca or ebay.ca, just check and make sure you're purchasing the correct size and mAhr rated capacity battery and check the buyer comments and/or seller's ratings.

I often found the better sales places were in Quebec which also saved any Prov. sales taxes and shipping/customs costs. Also check any return/refund policy.

If you don't like what you find on-line, then just contact canadaRAM.com.
Rechargeble Batteries for your PC, Apple Mac laptop notebook, iPod, Phone and Digital Camera (http://canadaram.com/batteries.htm)

They used to be an active well respected member here, at least when ehMac.ca was more Apple Mac related than its current political BS and often personal vindictive state.

Happy New Year and Good Luck.




- Patrick
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TiltAgain
Jan 1st, 2019, 12:56 AM
If the OS thinks there is no battery because it's so discharged or kaput, even if it is plugged into AC power it will operate at a much reduced rate.

*SNIP*
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Oh, are you positive? The reason I ask is, I have a 2006 White MacBook (the very first gen of the Intel MacBooks) whose battery is very very dead; but when plugged in the machine sings beautifully with no slowdowns. Of course I am stuck on Snow Leopard, but that's fine for browsing.

Cheers

pm-r
Jan 1st, 2019, 01:08 PM
Oh, are you positive?


I'm pretty sure, at least for the 2011 era MacBook, but I think some of the 2008 and earlier may have acted differently, and if I recall correctly, some early MacBook models wouldn't even boot or run if the battery was removed but using only the AC adapter power.

BTW: Nothing wrong with running Snow Leopard IMHO if it can still perform what you need. It was mainly browsing problems that I experienced that forced me to finally go up to Mavericks. Actually, Safari has started acting up even in Mavericks with some sites and I had to switch to Firefox for a while, but I found some things annoying using it and finally switched to mainly using Google Chrome. Not an ideal browser for me but seems to be working the best for my use.

PS: Be careful if you do leave the dying/dead battery in that MacBook as they can do some serious damage if and when they swell. And swell they will given enough time.




- Patrick
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