7544 problem with upgrades

Ube_Astard · Post by **Ube_Astard** » Wed Jan 04, 2006 1:11 pm

dsarens wrote:Ube,

When I received my 7544 it had no JP1 connector or EEPROM fitted. I put in a connector and 2K EEPROM myself. Did you have to do this or did yours already have them fitted? I ask because I think with this model they usually come without the connectors/EEPROM and only get fitted if it has been back to UEI for an upgrade.

Regards,

Duncan

I sent mine to the manufacturers over a year ago to get it coded for my Sony DVD/VCR so it may have been done by them then, I didnt notice at the time as I wasnt JP1 wise.

Capn Trips · Post by **Capn Trips** » Wed Jan 04, 2006 1:16 pm

IIRC, UEI simply replaces a sent in remote that is not JP1-enabled with one they have on-the-shelf, usually with a 1k EEPROM, so that is likely when your remote was "upgraded" - it was most likely replaced.

dsarens · Post by **dsarens** » Wed Jan 04, 2006 4:22 pm

Ube,

Is your remote a 7544-B01? Mine is, with a 2K EEPROM, and works with the limitations I mentioned earlier. Just wondering if yours is a newer or different version.

Duncan

Ube_Astard · Post by **Ube_Astard** » Thu Jan 05, 2006 5:33 pm

Hi mate. Mine is 7544 B02 looks like its 1K.
Now I have tried Robs UDF today and download from remote, it says 'bad checksum address at $0000. Expected $09 but $F6, but found $FF $FF'. Then 'there is conflict at fixed address $0015...blah, blah'. But I cannot upload to the remote.

Post by **The Robman** » Thu Jan 05, 2006 7:43 pm

That RDF is for the 2k version, here's the same RDF converted to 1k...

https://www.hifi-remote.com/forums/dload ... le_id=2661

Ube_Astard · Post by **Ube_Astard** » Sat Jan 07, 2006 5:34 am

Thats it Rob! That one works, thanks very much for your time all. Gotta see what I can and cant do with it now.

Ube_Astard · Post by **Ube_Astard** » Sat Jan 07, 2006 7:59 am

Now Ive found that though most buttons work, some dont. Can anyone advise me in simple terms how to work through this please?