It is not allowed to Reset Cycle counter and battery production date on used batteries. 

@djibattworkshop 

How can I solve this problem?

@djibattworkshop 

How can I increase the battery health capacity without  Reset Cycle count?

Posted by: @expromedia

How can I increase the battery health capacity

By replacing the cells. 

 Did you read this message before proceeding to reset FCC, Cycles and manufacture date to factory value ?.. 

@djibattworkshop 

Can I restore the original battery information?

 Yes. Reflash with backup eeprom. 

@djibattworkshop 

I don't have a backup

 It is a rule number one to create backup. 

 Please read this advice and dont ignore it. 

@djibattworkshop 

Can you help me and attach the firmware file for the same battery type?

Is there a solution to get that battery back to work again? I do not want the customer to lose confidence in my work, please

What is the reason for the battery not being recognized on the laptop after this modification?

There are other types of batteries that work after modification. Does replacing the cells fix this problem?

Posted by: @expromedia

Can you help me and attach the firmware file for the same battery type?

 there is no such firmware available 

Posted by: @expromedia

Is there a solution to get that battery back to work again?

 you could return manufacture date and cycle counter from the very first BatInfo page picture 

Posted by: @expromedia

There are other types of batteries that work after modification

  So you reset cycle counter and production date on all the batteries which brought to you for repair ?..