820-3332 shows dead battery when power on

[Dany1]

Hello friends, how are you? I am new to this repair of macbooks, I mainly dedicate myself to iphone. An 820-3332 came to my workshop that only turned on with a battery and when I connected the magsafe and the green LED blinked, change u7000 and measuring it had no PP5V1_CHGR_VDDP
remove R7001 and got green light then orange
replace q7080 and fix that fault.
now when I connect with a charged battery it says the battery is exhausted and it does not turn on, then I connect the magsafe and with the battery connected it marks a level of 60% and it works very slow. From already thank you very much

 

[Dany1]

PPBUS_G3H voltage is 12.59v without battery.
u7000:
17 and 18 = 17.1 ohm
27 and 28 = 21.2 ohm
I am downloading efi asd for this model

 

[Dany1]

17.1 ohm was very high so I tracked the lines and found that the CHGR_CSO_R_N line had no connection to the other side of r7050. solve the first.
Now the macbook works fast, but when I connect the battery so that it charges it marks different percentages and continues showing when it is off and I want to turn it on that the battery has no charge, I am testing with a generic battery and 2 original ones same failure

 

[2informaticos]

Run ASD first...

 

[Dany1]

Only two error

 

[2informaticos]

The first error is Thunderbolt related too?
I cannot see from your picture; missing above message line.

Check for corrosion on thunderbolt area.
Remove Q3880 and test machine again.

 

[Dany1]

With battery without magsafe it throws this error

 

[2informaticos]

What did you expect, if charger is not connected???
DCIN is no present, of course...