the "after P165 part" is irrelavant to just the software version..
What matters is that you are both P165..... - therefore running P165 software...
the rest - i think - has to do with Electronics inside your 501s - Tsop or Eeprom maybe or something...
later
What matters is that you are both P165..... - therefore running P165 software...
the rest - i think - has to do with Electronics inside your 501s - Tsop or Eeprom maybe or something...
later