Macbook pro mid 2010 battery problem

maggiolo72 wrote:

That was my question, if a logic board have a problem with the Battery system the Bil will functioning or not ?

Yes, a Logic Board issue can cause the BIL not to function. The BIL is a very simple part which usually only fails when there is damage to it.

Because if I connect the battery the bil doesn't show any light, the charger don't go amber and inside the system the battery is not shown .

This indicates the Battery and/or the Logic Board is bad. The battery is the most likely part to be bad assuming the laptop was functioning fine before swapping out the battery.

I have used the pram reset and give another try to the suggestion from HWTech, so I connected the battery when was turned on connected to the charger. There was no sign of charging not the BIL functioning and no battery on the system but if I turn it off and try to power on then is functioning with the battery, but still no BIL, no battery icon and if i connect the charger the light remains green.

This sounds like the battery may have been drained to 0% charge which prevented the laptop from powering on because all the power of the charger is going to the battery which is not able to function properly with 0% charge. For some reason hot plugging the battery in allows the battery to begin charging since the laptop is not trying to both power on the laptop & charge the battery at the same time.

Without actually seeing the laptop first hand I cannot be absolutely sure, but in my own personal experience I would still suspect the battery being the source of all the problems here. I don't know what battery you purchased, but you should try a battery from OWC to see what happens (assuming your battery is not from OWC). Plus a bad battery is your best case scenario here, because if it is a bad Logic Board, then it definitely is not worth the money to fix it. Of course seeing the actual laptop first hand I may notice something that would change my mind, but if nothing stood out, then I would still lean towards the battery.

This is my best educated guess from repairing thousands of our organization's Apple laptops over the years.

Disconnect the battery and try powering on the laptop with just the charger. If the laptop powers on & boots, then reconnect the battery while the laptop is still powered on & booted. Let the battery charge at least 10% before powering off the laptop or disconnecting the charger. Don't let the battery charge level get to 0% and see how the laptop performs.

If the laptop won't power on with the battery disconnected, then you have some other hardware issue with the laptop. There may be a problem with the charger or DC-In Board, or something is loose, or you may have damaged something when you removed the Logic Board to do the thermal compound.

The quality of third party Lithium-ion batteries is extremely poor even when purchased from a reputable vendor such as OWC. Just because you have a brand new third party battery does not mean the battery is good. Yes, the quality of third party Lithium-ion batteries is that bad.

It appears you have the MacBook Pro 15" (mid 2010) model laptop. This model is known to have GPU failures, however, I have seen some of the GPU failures manifest as dead logic boards which Apple replaced for free GPU repair program (now expired). If the laptop is running Ok without the battery, then this is not likely the problem.

From the Kernel Panic report I see two possibilities. One item appears like it might be an NVRAM read error. You can try resetting the PRAM using the instructions in this Apple article (just make sure to hold the reset for at least three chimes):

Reset NVRAM or PRAM on your Mac - Apple Support

You can also clear the NVRAM using the command line:

sudo  nvram  -c

This will prompt you for your admin password, but nothing will show on the screen as you type the password so press the "Return" key to submit the password. You need to reboot about issuing the command to load the default NVRAM settings. The traditional PRAM Reset seems more reliable though, but it does not hurt to try both.

The other potential item shown in the Kernel Panic log is the Virtual Box drivers were the last ones loaded, so maybe there is an issue with Virtual Box.

I don't believe either of these items in the Kernel Panic would affect the BIL. The only time I have ever had to replace the BIL was when the cable was accidentally torn, or when there was liquid damage to it or the connector on the Logic Board. IIRC, the BIL cable just snaps down onto the Logic Board connector for that model, but if it is instead a flex cable sliding into the connector on the Logic Board, then make sure the cable is fully seated & the connector latch is down.

How are you performing the SMC Reset? I believe I used to use the keyboard combination of Left Shift + Left Control + Left Option + Power Button (even if Apple's instructions today don't mention this option). I personally like to Option Boot the laptop and let it sit at the Apple boot picker menu when I perform the SMC Reset as it will immediately power off the laptop when the key combination is pressed.

Assuming the BIL part is not damaged and the cable is fully seated, I would expect the Battery to be the reason followed by a bad Logic Board. I guess you could purchase a BIL to test as it should not be expensive (you can just connect it without fully installing it so you don't risk disturbing anything else). If you still have the original Apple battery, then see how things behave with the original Apple battery. The fact there may be an issue reading the NVRAM may indicate some sort of Logic Board issue especially if resetting the PRAM does not eliminate that error in any later Kernel Panics. I'm assuming the "NVRM" mentioned in the Kernel Panic log means "NVRAM".

You would not hurt the laptop by holding the power button without the battery. The only time I ever had an issue with a Mac was if I held the power button down while connecting power to the Mac, but I believe the issue was only temporary (I no longer remember the exact details).

Not necessarily especially if you keep buying from the same vendor. Their batteries may be junk, or their current stock could be old or have a manufacturing defect. Keep in mind most online vendors selling Lithium-ion batteries are selling the same junk batteries. It is extremely difficult to find a vendor selling a good quality Lithium-ion Battery. Like I said before, even when purchasing a Lithium-ion battery from a well respected vendor such as OWC you may encounter bad batteries. The quality of third party Lithium-ion batteries is that bad. I suggest purchasing a battery from OWC as that vendor is the best chance of getting a good battery. I really don't trust the quality of any products available from vendors selling on Amazon. Yes, there may be some good ones, but it is impossible to determine which may be decent due to all the fake & paid reviews.

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With the battery disconnected or if the battery is not functioning correctly the fans may run at high speed since the Logic Board does not see the temperature sensor of the battery (or some other temperature sensor).

Here are the conditions where the Battery Indicator Light (BIL) on the side of the laptop won't light up:

• Battery has no charge
• Battery is bad
• BIL cable is not fully seated on the Logic Board
• Logic Board is bad
• BIL cable or connector is damaged
• BIL is bad

If the BIL was working, but it is not working now, then it is unlikely the BIL itself is bad unless.

Assuming no damage, the battery is always the weakest link.

That is always a possibility. Do you have access to a 2011 or 2012 non-Retina MBPro? I believe they use the same battery so you could test with a known good battery if you have access to one of those other model years.