EEPROM data change after updating f/w?

vbimport

#1

Hi,

I’m going to update my LH-18A1H@HL01 to HL05 and wonder if i need to backup my eeprom data before the action?
What happens if I don’t backup it? Can the data stored in eeprom change in a negative way after the f/w update?

Thanks for helping,


#2

you need only Backup your EEPROM if you crossflash the drive.
A Simple Firmware-Upgrade never need an EEPROM Backup.


#3

hmm, why is it so important to have a backup when crossflashing? Can’t you just reflash it back to the old firmware if something goes wrong?


#4

Die EEPROM have some specific calibration data. This data are only for this special drive.

You should Backup and convert it if you crossflash.


#5

So you mean that the EEPROM data is not included in the firmware-update-file, and therefore can’t be changed when updating the firmware?


#6

Yes. And this is a good thing, as the EEProm data are unique for each drive. Making a backup of these is just for security reasons.

Michael


#7

yes, I don’t know if all Parts are fixed but some parts yes. C0deking know more about EEPROM.


#8

thx guys. you have helped me alot :smiley:
just one more thing though :stuck_out_tongue:
how do the manufacturer know that you’ve flashed/crossflashed the drive, since you can reflash it back :S?