Erratic Charger Behavior - Indicator light (thus charger) work sporadically
On my 18 mo. old Macbook, the charger (or perhaps the battery) is acting erratically in that when connected, the light often will not come on. Sometimes it works instantly, other times you have to snap it on & off 1-20x, or just wait for a while & repeat the above. Occasionally, it will illuminate for just a short period, then turn off. It likely will continue to get worse. Is this symptomatic of the defective batteries on the recall, or is this a charger problem, or something in the computer? I've checked the firmware on battery; it's 1.3, presumably the latest. All software updates have been installed as well.
Further, I've noticed that when the charge goes to about 40%, the machine just shuts off. No warning, just powers down, w/ subsequent loss of unsaved data. This may or may not be related.
Thx for the replies w/ diagnosis!
Tim Bergman wrote:
I've checked the firmware on battery; it's 1.3, presumably the latest.
The 1.3 update is the MacBook Pro update. You need to remove it before you can find out if anything else might be wrong. Leopard installs it.
Try these two locations for it. It will be one or the other.
MacBook/Library/System/Library/SystemConfiguration/BatteryUpdater.bundle
MacBook/System/Library/SystemConfiguration/BatteryUpdater.bundle
Drag it to the trash and then reboot. After you reboot you will be able to empty the trash. Once you have done that run software update and it should install Battery Update 1.2. You should reset the SMC (System Management Controller) after doing this.
Then watch your battery and see if any of the things continue to happen.
How many cycles do you have on your battery?
Apple: Determining Battery Cycle Count
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Good evening,
A few weeks ago i dropped my MacBook Pro (i5 Mid 2012) and it failed to turn on, battery had charge in it at the time.
When i press the power button nothing happens. I have also tried resetting the SMC, nothing happens.
Next i plugged in the mag safe charger, before i pressed the power button i saw the charging light come on for a second then cut out.
If i press the power buttong, nothing happens.
I opened the back of the machine and tried the above steps again to see what happened.
1. When i press the power button nothing happens.
2. When i plugged in the mag safe charger, before ti pressed the power button i see the fan starts to spin for maybe 2 seconds then stops. I hear the hard drive start to spin but that also stops at the same time, during this the front batter charging indicator light also illuminates, but also cuts out.
Its like when you attach the charger it wants to do something but stops everything after 2 seconds. I left it plugged in for maybe 1 min and its just repeated this action maybe 20 times.
At no stage when i press the power buttong, plugged in or not does it react.
I have taken out the hard drive and plugged into another manchine as an external drive and it works perfectly. Hard drive is no problem! From what i can see all connections are ok, and appear to be plugged in correctly, no burn marks or damage visible.
Logic board failure from impact?
Thanks,
GaryWouldn't this be better in the Macbook Pro forum than the Pages forum:
https://discussions.apple.com/community/notebooks/macbook_pro
Peter
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