Replacement Battery not recognized - Black X
After liquid damage to my Early 2011 MBP, I replaced my old 820-2963-B board with another board (same model number) from a Late 2011 13" MBP. I can power the computer on while it's plugged in and the MagSafe has a constant green light. However, the battery icon had a black X over it. I replaced the battery with one from amazon and installed it today. The icon still has a black X and cannot run off of the battery alone. I reset the SMC and reseated the battery. Still nothing.
The battery indicator lights on the side also do not work. I tried to run it with the BIL disconnected but the battery is still not recognized.
The replacement board I bought was refurbished I believed and guaranteed to work by the seller on eBay. The battery I purchased was from amazon and is a Siker.
UPDATE: The X has gone away and now shows the Lightning symbol over the battery icon but it remains stuck at 0% and says that the battery is not charging. Here is my information from coconutBattery:
Current charge: 0 mAh
Max charge: 0 mAh
Design capacity: 0 mAh
Battery Status: Good
Battery Temperature: -273.1 degrees
Battery Failure: None
Charging with: 0.0 watts
UPDATE 2: I do not know if this helps but I ran an extended Apple Hardware Test and came up with the error code 4SNS/1/40000000: VDOR -18.707. I know this is some sort of Voltage DC sensor. I did not replace my DC-In when I replaced the board and am not sure if that is where the sensor is located.
UPDATE 3: I replaced the Battery Indicator Lights but they will not turn on at all. However, the AHT no longer reports any errors and the System Profiler now comes up with a power page (whereas before I replaced the BIL it did not). Techtool Pro 8 does not recognize any sensor failures either and reports that the battery passed it's test. It still does not show up in coconutBattery and continues to have a black X.
Is this a good question?