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Macbook Pro Retina 820-4924 Not Turning On, Liquid Damage
- Thread starter WiFiComputers
- Start date
WiFiComputers
Member
PPBUS_g3h 12.60v
PPBUS S5 HS COMPUTING 12.60v
PPBUS S5 HS OTHER5V 12.60v
PPBUS_S5_HS_OTHER3V3 12.60v
PPBUS_S4_X239 missing 0V
PPVIN S4 TPAD missing 0v
PP3V42 G3H 3.42v
PPVRTC G3H 3.34v
PP5V S5 5.01v
PP5V S4 missing 0v
pp5v_s3 missing 0v
pp5v_s0 missing 0v
pp3v3_s5 missing 0v
On u7501 Pin number 4 P5Vs3_Enable missing, I tried to trace back where it creates, found it on on page 64 after R8179, that resistor is fine , missing PM_SLP_S4_L now I am stuck here to look further
Please adviced, I attached pictures where it was liquid damage
Already changed u1900 but no difference
Thanks
PPBUS S5 HS COMPUTING 12.60v
PPBUS S5 HS OTHER5V 12.60v
PPBUS_S5_HS_OTHER3V3 12.60v
PPBUS_S4_X239 missing 0V
PPVIN S4 TPAD missing 0v
PP3V42 G3H 3.42v
PPVRTC G3H 3.34v
PP5V S5 5.01v
PP5V S4 missing 0v
pp5v_s3 missing 0v
pp5v_s0 missing 0v
pp3v3_s5 missing 0v
On u7501 Pin number 4 P5Vs3_Enable missing, I tried to trace back where it creates, found it on on page 64 after R8179, that resistor is fine , missing PM_SLP_S4_L now I am stuck here to look further
Please adviced, I attached pictures where it was liquid damage
Already changed u1900 but no difference
Thanks
WiFiComputers
Member
omg never seen anything like this
If battery is connected macbook turns on and works fine
I plug charger while battery connected works fine, disconnect battery while it is running still works well, restart computer without battery , it will restart fine , it just not turn on without battery, after turns on i can disconnect battery no issues
If battery is connected macbook turns on and works fine
I plug charger while battery connected works fine, disconnect battery while it is running still works well, restart computer without battery , it will restart fine , it just not turn on without battery, after turns on i can disconnect battery no issues
WiFiComputers
Member
when I plug Charger it takes about .20amp
Disregard anything I said before. Does the Mac charge the battery? If so, then make sure you are using a known GOOD 60 or 85 watt OEM magsafe 2 charger. The 2015 Macs I have found are very finicky depending on the charger you use. Sorry for any confusion from before your post on the battery confused me when I first read it.
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