EEPROM Utility for LiteOn/Sony CD/DVD-Writers
The Official Thread
What is it
We have developed a tool that makes backing up and restoring the EEPROM very simple. The EEPROM is a 1024 or 4096 byte non-volitile memory in the drive, which stores data that needs to be retained when the drive is de-powered. I suggest that everyone with a Liteon DVD drive should use this utility to make a backup of their EEPROM straight away (if you don't have one already) and make two copies for safe keeping. You may never need it but it's good to have just in case. If you have two drives, it's even more important, as it is very easy to write the EEPROM file to the wrong drive. This can kill a drive because each EEPROM has unique calibration data, that is set in the factory. MAKE A BACKUP NOW!!!! What have you got to lose.
Features
1/ Backup EEPROM.
2/ Restore EEPROM.
3/ Reset Learnt media calibration data (new method in v2).
4/ 4x1S to 811S EEPROM conversion, using ala42's conversion algorithm.
5/ EEPROM checksum repair.
6/ Supports backup and restore for CD-RW and DVD.
7/ Upgrade Drive function.
8/ Supports 5S and 6S EEPROMs
New Features in v3.3
1/ 4KB backups for 5S and 6S
2/ 4KB backups includes HyperTuning data
3/ Reset HyperTuning function
Upgrade Drive
This function allows you to upgrade (or downgrade) your drive to any model that is supported by your drive's hardware. Once you have changed your drives model you will be able to use official firmware in your drive without any crossflash patching.
Supported upgrade drive sets:
* 451S <> 851S
* 812S <> 832S
* 862S <> 852S
* 1213S <> 1613S <> 1633S <> 1653S
* 1673S <> 1693S
Note:
* 451S and 851S users wishing to crossflash to 812S or 832S should still use the OmniPatcher crossflash patch or use firmware already patched, as the hardware difference still requires the patch to allow the drive to work properly.
* I have released the "Upgrade Drive" feature because I personally feel that Liteon has let it's users down very badly when it comes to the 1213S, 1613S and 1633S. The last version of firmware released for the 1213S was atrocious, with very poor reading and writing, yet the 1213S performs quite well with 1633S/1653S firmware. The last release for the 1613S was 9 months ago and the 1633S over 5 months ago. Also BS42 was never released even though it was promised. I personally think Liteon needs to seriously look at their approach to customer support, if they want to stay in business.
Note: Please understand that some functions are experimental, at this stage. Make sure you backup your eeprom first.
More information
Please read the documentation enclosed in the package for more details.
Compatibility
EEPROM files for this utility are compatible with other EEPROM utilities.
Credits
Special thanks goes to RPC1 (The Firmware Page) and the authors of Dvdzone and PLScsi, xvi, Pat LaVarre and ala42 for sharing his invaluable knowledge of the EEPROM. Without them, this utility would not have been possible.
Note: Do not use this utility on anything other than Liteon hardware.
Version: v3.2.4 (3 march 2006)
* Fixes an issue with 5S and 6S drives (if you have either of these drives please upgrade)
* The version number is now displayed in the title bar
Current Version: v3.3.3 (24 April 2006)
* 4KB backup for 5S and 6S models
* 4KB backup includes HyperTuning data
* Reset HyperTuning function
* Minor bug fix in v3.3.3
Download: EEPROM Utility
Documents: Readme fileکد:http://codeguys.rpc1.org/utilities.html
Acknowledgements:کد:http://codeguys.rpc1.org/docs/eeprom_utility_readme.html
We would like to thank the people in the community whose work, either directly or indirectly, have helped us do what we do: TheKeyMaker, xvi, The Dangerous Brothers, >NIL:, ala42, dhc014, etna, Dale, digi, and the author of KProbe.
Note: We've decide to allow requests for EEPROMs, when it's a genuine case of a lost/over written EEPROM and I guess this is as good a thread as any to do it in. Also note, we still don't know whether using an EEPROM file from another drive, can do damage to a drive it was not calibrated for. So only do this as a last resort!
