Passwords gone

[dennisfcampbell]

using external drive when imac failed, switched same drive to 13 in. laptop while repairs finished: new logic board and screen, switched drive back and all passwords under safari are gone,( back to 13 in. passwords still there)....... email is down on the new logic board and refuses to recognize working password ( works on the 13 in. ) also will not connect to time machine external disk
what is going on ????

 

[dennisfcampbell]

C,
how goes the life?
apple service provider did the work, as for serial nos. have no idea but it seems that they dont match, more investigation points to this. The user password works but it is only a single digit, this computer has but one user. Had to redo the email account, working now, been reinstalling pass words as they come up....... no access to time machine is the big hurdle now is there a simple way to resolve this or is erase the only answer. Question: 1) can the service provider do something to prevent this on logic board installs 2) would changing os be advisable at this junction have 4 sierras to upgrade 2 separate drives and one partitioned drive......thanks

 

[dennisfcampbell]

thanks for the heads up will use suggestions ...
d