Your right the memory wasn't seated fully..success! Now Time to figure out why it says not charging -_-
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SMC Issue on MBP 13 - Hardware Troubleshooting Guide
- Thread starter Dadioh
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Hi grize!
Sorry for the late answere. I've never used the ASD, but a lot of times it would have been very useful. So thanks a lot, I will use it in the future.
The booting problem has been fixed by smc replacing. The machine works well.
I have an other faulty board (a1278, 820-2530A) which is a huge challenge for me. It's turn on and starts booting (shows the gray screen with the apple logo), but before the system stands up it turn off immediately.
I tried to check the ASD EFI, the program run stable, and tests were successful; it didn't find any problem. Than I tried to start the ASD OS, but the board turned off after ten seconds during the booting - just like normal osx.
I checked the mac with external hdd, usb install drive, and ODD, but it turned off in all cases.
Do you have any idea about it? Or something else?
Thank you!
I have something to report from my mbp 13" mid 2011.
Water damaged that didn't work with power adapter only. worked fine with battery.
battery changed
magsafe power in changed
and just now changed battery light indicator.
Plugged in magsafe and it now works with it. The battery is 0% charged. actuakky I tried with two different batteries, both charged 0%.
This was new.
But, it doesn't charge.
And if I do smc reset, it doesn't power up until I unplug and plug battery light indicator connector (not the button, but the actual connector in motherboard)
Any ideas? It probably is the charger chip. But if it keeps workin with magsafe I'm satisfied.
edit. No it didn't I fooled around couple of times and it worked just fine. It was (both times) running over 20 minutes, then I shut it down. Changed battery and it didn't work anymore.
Maybe when heating up, something happens and it doesn't work anymore?
Because the battery was so low that it couldn't have been able to keep it running for 20 minutes.
weird.
Water damaged that didn't work with power adapter only. worked fine with battery.
battery changed
magsafe power in changed
and just now changed battery light indicator.
Plugged in magsafe and it now works with it. The battery is 0% charged. actuakky I tried with two different batteries, both charged 0%.
This was new.
But, it doesn't charge.
And if I do smc reset, it doesn't power up until I unplug and plug battery light indicator connector (not the button, but the actual connector in motherboard)
Any ideas? It probably is the charger chip. But if it keeps workin with magsafe I'm satisfied.
edit. No it didn't I fooled around couple of times and it worked just fine. It was (both times) running over 20 minutes, then I shut it down. Changed battery and it didn't work anymore.
Maybe when heating up, something happens and it doesn't work anymore?
Because the battery was so low that it couldn't have been able to keep it running for 20 minutes.
weird.
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did you do visual inspection ? many times those TFQN packages breaks up the legs ir the PCB pads when have water damage..
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tried SMC reset ?
Does it detecs that there is a battery ? shows cycles ?
the charger chip looks ok. when magsafe is connected the charger chip is sending pulsating voltage to the battery. Varying from 0V to 13V. Also the fuse near the charger chip is having this pulsating voltage. It seems that there is steady 18v voltages near charger chip, but something happens probably in the charger chip.
When mbp is in smc bypass mode there is steady 12,5V in the battery connector.
Thanks!
These are the different power states that the system can be in. S5 is the standby state. You can expect to see the S5 voltages when the system is powered off but has the battery/magsafe connected.
When the power button is pressed the startup sequence initiates and the system will progress to S3 (Sleep) and then to S0 (Run) power state.
You will not see the S0 voltages when the computer is powered off or in a sleep state.
Hope that helps
thank you very much.. it really helps..
And how do you know that ? by experience or there is some place on the schematics that says?
A bit of both really!
There is more info here about the ACPI power states (this applies to any ACPI compliant computer)
http://en.wikipedia.org/wiki/Advanced_Configuration_and_Power_Interface
On page 69 of the schematic for the system that I am working on currently (15" 2009 MBP K19) there is a table that shows what signals will be present in the different power states. I think there should be something similar in the schematic for other systems, but can't say for sure. The page is called "Power Control".
I can't find the correct version of the SMC firmware for my system as it isn't available on the Apple site. It was running version 1.48f2 before it died a few weeks ago.
I am 50/50 at the moment whether the current fault is due to the SMC chip having the wrong firmware or whether it is due to a fault with the chipset. Unless I can find another SMC chip with the correct firmware version in the next few days, I will have a go at replacing the chipset - have you got any tips when doing this?
I gave a reballing machine with top heater and bottom heater.. i always use it to remove TFQN ... I do heat underneath and use the manual hot air to loose the tfqn .. this way i can set the hair to 280-300 and remove the those ICs... because if you only use the manual hot air station, you have to provide a lot of heat to keep the solder melt.. then, the surface of the IC gets very very hot to transfer the heat too... some people set it to 500C to remove a IC...
I did reball on that 17 inches macbook a single SMC 5 times... and it works perfectly because the heat is not too much !
I never remove SMDs without the aid of a bottom heater...
you may not need necessaryly the 1.48f2 version.. maybe it was updated to a new one. ... you can search for the model and see if a similar product have a compatible version...
Which macbook is it?
It is a 2009 15" MacBook Pro 5,3
Seems like this model shipped with version 1.48f2 and never got an upgrade
the 1.70f6 version of 17 inches worked perfectly on the 13 inches i5 that i had... although the opposite didnt.... the 1.68f99 from the 13 does not work on the 17...(no video)..
mid 2013 macbook air issues
Hello - I am having issues with by macbook air. Yesterday all of a sudden, the machine started to blow fan at high speed and I pressed the power button to turn the machine off. I checked there is a kernel task taking 400% cpu. Figured that's causing it and restated the machine. Upon powering the machine continued to make noise. I turned it off and tried the SMC reset procedure.
After the SMC reset, now the machine doesn't power on anymore. Pressing the power button causes nothing to happen.
After few googles searches, I decided to open the machine and disconnect the battery. Without battery, I connect the magsafe and press the power button, the machine reboots and is back to normal. Then I shutdown the machine and restarted and it works fine without the battery.
Now I connect the battery back. The machine doesn't work. The power button doesn't work. Figured this is a dead end and disconnected the battery.
With just the magsafe adpater, I was able to restart the machine and then connected the battery. Now the machine can suspend, resume and restart and works fine. Except if I shutdown the machine, the machine never comes back.
In summary, the power button only responds without the battery. With the battery sleep, restart works fine. I can continue to work like this as, very rarely, I actually shutdown my machine. It is always suspend / restart.
I read quite a few forums but can't figure the issues. Experts out there, do you have any advice or guidance on how to fix this issue.
I suspect something with SMC reset didn't go as planned. Made numerours SMC & PRAM resets and they are of no use. The only to cold boot this machiine is without battery and then connect battery for rest of the system to work.
Thanks for your help
Hello - I am having issues with by macbook air. Yesterday all of a sudden, the machine started to blow fan at high speed and I pressed the power button to turn the machine off. I checked there is a kernel task taking 400% cpu. Figured that's causing it and restated the machine. Upon powering the machine continued to make noise. I turned it off and tried the SMC reset procedure.
After the SMC reset, now the machine doesn't power on anymore. Pressing the power button causes nothing to happen.
After few googles searches, I decided to open the machine and disconnect the battery. Without battery, I connect the magsafe and press the power button, the machine reboots and is back to normal. Then I shutdown the machine and restarted and it works fine without the battery.
Now I connect the battery back. The machine doesn't work. The power button doesn't work. Figured this is a dead end and disconnected the battery.
With just the magsafe adpater, I was able to restart the machine and then connected the battery. Now the machine can suspend, resume and restart and works fine. Except if I shutdown the machine, the machine never comes back.
In summary, the power button only responds without the battery. With the battery sleep, restart works fine. I can continue to work like this as, very rarely, I actually shutdown my machine. It is always suspend / restart.
I read quite a few forums but can't figure the issues. Experts out there, do you have any advice or guidance on how to fix this issue.
I suspect something with SMC reset didn't go as planned. Made numerours SMC & PRAM resets and they are of no use. The only to cold boot this machiine is without battery and then connect battery for rest of the system to work.
Thanks for your help
I would say its a SMC problem, but there are a lot of resistor and capacitores that you should check on the slc and sda lines... If All checks out, it could be the smc itself
Does this require full logic board replacement or ??
Is there a guide on how to check on the lines you mentioned above. Sorry about the newbie question
Well... It can be changed... I do change....but requires skills and and having the tools
My mbp has been forgotten for a week and same thing happened now like last time when it was not used for a long time:
Connected magsafe and pressed power button and it just turned on. Everything works. There is plug image on the battery charge indicator on the screen and text that says not charging. But it works fine with magsafe.
weird. And I know that if I shut it down and try to restart, it won't start. Only in smc bypass mode.
Well another update about my mbp 13 mid 2010.
Surprisingly the mbp has been working when magsafe is connected. No matter if I shut it down and disconnect the magsafe. When I connect it again it works.
But it doesn't charge.
I have been monitoring the battery with coconut battery and MacBooks own system control (I'n not sure what it is in english).
I have noticed that the battery voltage is about 8000mV all the time.
It Should be 11-12v?
Surprisingly the mbp has been working when magsafe is connected. No matter if I shut it down and disconnect the magsafe. When I connect it again it works.
But it doesn't charge.
I have been monitoring the battery with coconut battery and MacBooks own system control (I'n not sure what it is in english).
I have noticed that the battery voltage is about 8000mV all the time.
It Should be 11-12v?
A1286 2008 MPLB boots when board gets hot only
I have shorted 2008 a1286 MBP 15" update- quit booting
PP5V_S0 =0v
PP5V_S3 =0v
I do however get some voltage from chip ISL6236 directly from some pins , am I supposed to be checking Out1 , Out1 or En1 ,En2?
or chip U7300 TPS51116
There is no water damage
I have shorted 2008 a1286 MBP 15" update- quit booting
PP5V_S0 =0v
PP5V_S3 =0v
I do however get some voltage from chip ISL6236 directly from some pins , am I supposed to be checking Out1 , Out1 or En1 ,En2?
or chip U7300 TPS51116
There is no water damage
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HI there...
Are you able to see battery data on the macbook system menu. like cycles ?
if you do, it means that SLC and SDA wires are communicating with the SMC..
If you do not see any data about the battery, its just a problem between the battery and SMC... maybe a bad battery or bad smc or bad pull up resistors on the SLC and SDA(10k i believe) lines or bad caps on those lines..
If you see data... it can be the charger IC bad or some of the caps/resistors of it.... also check if there is 3.42v when only the battery is connected.. It should be there after the inductor of U6990.. If there is not 3.42, check the 470 ohms green resistor close to it , it should have the battery voltage on both sides and before that there is a diode (transistor shaped) that should have GH3hot in one leg when magsafe is connected and DCIN (battery) on the other leg...
Well. .get back with more info..
Yes, It shows the cycles and what is the batterys maximum capacity (like 80%).
I'm not really sure where in this board the u6990 is (mid 2010 mbp 13), so it would help me if you or someone else could tell me where it is.
Soon as I know where it is, I'll tell you voltages.
I think that the problem could be some kind of bad contact or something like that, because at first it didin't work at all by just using magsafe. At one point the magsafe did show amber light for a few seconds, now it is not.
Or then again maybe it's not a bad contact.
When I take battery out, the voltages around charger chip change a lot. When both battery and magsafe are connected, I can read 12vdc near the battery, but at the battery connector there is only 6vdc. The fuse and capacitors near battery show 12vdc.
And when battery is not connected there are three test points near charger chip pin 1 where. I can read 16,5vdc (some differences between them). But when battery and magsafe are connected one of those points show 16,5vdc but one is 0vdc and one is the same 6vdc that is on the battery connector.
But if someone could help me find the u6990 and d6990 I would be grateful. Which side of the board etc..
Thank you. This is very interesting journey!
Tell you board number... Like 820-2978-a... There is written on the board, on the opposite side of the processor and gpu.... You need to look careful to find ....
Ok, I'll check.
I just did some measurements. what is this part, and are the voltages looking right or wrong. Is this feeding the 12vdc to battery? Or should it do so? Measurements were taken while mbp is running.
Attachments
I measured some voltages from the other side of the board too (where the processor is).
