A1398 Battery Service

Dozer

Member
I got an A1398 2.8GhZ, 16GB, mid 2014, OSX 10.15.7 with bad Akku
After replacing it came back because it shows by clicking on battery symbol "service needed..."
I replaced the accu checked, no service symbol and sent back
Now i got again with the same problem (1 day later)

I dont had password from client and tryed my SSD, no service needed, tryed with an external empty drive new installed catalina, -> no batterie service needed

I tryed to install "over" the client installation, same problem
tryed update with big sur on the client installation, same problem

ofcourse SMC and PRAM Reset already tryed

did anybody had this problem before? need help please
 

2informaticos

Administrator
Staff member
I suppose, if its macOS installation still work.
Is probably better to manually save only important data; pictures, documents, movies, etc.
 

Dozer

Member
the problem is still there. before i try your proposal I tryed the ssd external from another macbook (A1706)
there is okay, no battery service
 

Dozer

Member
the original is catalina with the error, the machine is A1398 2015

i cloned a backup disk and installed big sur and that gives the error as well

i tryed the disk with big sur on
A1706 -> no error
A1502 2015 -> no error

now i started from thhe A1706 with external disk from client with big sur already
installed on the clients A1398 a fresh new big sur osx

started a migration from the A1706 to the new installed A1398

after that again the error
 

2informaticos

Administrator
Staff member
Big Sur is known to give this error.
You should try fresh new installation of Mojave (or High Sierra) on the A1398 machine.
Then upgrade to Catalina, if no previous error.
 

Dozer

Member
ok, Problem solved, thanks for help.
I made backup from client disk
then i deleted the disk in the machine and installed new high sierra, after that i upgraded to catalina(this was original osx on client disk)
then I migrated the data from the backup(started with another machine) to the client Macbook with fresh installed Catalina
and now the "service" message is gone.
 
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