Those who can't write, write manuals


Okay, what do you do when step-by-step instructions don't match reality?

I downloaded the ROM 1.23 update. While's instructions say one thing, the README file in the update itself says different. And neither works.

I'm supposed to press + and ñ (n-tilde) together while I push the RESET button. That's the Gospel according to St. Readme. On the other hand, I am to press ON and F4 first, then + and ñ together while I push RESET. That's the Gospel according to St. HPCalcOrg.

Sorry, fellas, it ain't happening. The "No System" menu refuses to show up.

Maybe I neglected to press SIN, COS and TAN together while I licked the screen?


The link above has instructions for upgrading the ROM using an SD card on the 49g+.

That should be applicable enough to figure it out even if not using an SD card.

Sorry, but I don't know anything about the update instructions in the 1.23 ROM.


It should say "press the + and - keys simultaneously and then push the reset button on the back using a paperclip. Then wait a second or two before releasing the + and - keys. ". This worked fine for me on the second try. Good luck.


Possibly Related Threads...
Thread Author Replies Views Last Post
  hp prime manuals giancarlo 0 508 07-07-2013, 07:05 AM
Last Post: giancarlo
  Gong through the older manuals... Eddie W. Shore 0 452 09-24-2012, 09:17 PM
Last Post: Eddie W. Shore
  HP-97 Write Error Colin Verrilli 6 960 09-09-2012, 01:57 AM
Last Post: Luiz C. Vieira (Brazil)
  HP41 Card Reader won't read and write Bruce Larrabee 5 1,056 07-31-2012, 06:33 PM
Last Post: John Robinson
  50G Printed Manuals Les Koller 25 3,644 07-15-2012, 04:32 PM
Last Post: Software49g
  OT manuals for Olivetti Logos 9 & Casio Fx-191 Brackett 0 525 07-09-2012, 09:57 PM
Last Post: brackett
  HP-42S Manuals Kees van der Sanden 3 724 03-19-2012, 10:18 PM
Last Post: Matt Agajanian
  Still Looking for HP Manuals! Dave Hicks 5 951 03-07-2012, 11:37 PM
Last Post: Allen
  HP manuals, the way they used to be Don Shepherd 23 3,115 03-02-2012, 03:33 PM
Last Post: Kerem Kapkin (Silicon Valley, CA)
  HP-42S Manuals Matt Agajanian 8 1,232 03-01-2012, 05:36 PM
Last Post: Matt Agajanian

Forum Jump: