|These are the latest stable HP49 ROM
They are available for download at HPCalc.org
ROM 1.19.5 for HP49 ( Dec 17th, 2000)
ROM 1.19.5 for EMU49 ( Dec 17th, 2000)
ROM 1.18( May 27th, 2000)
ROM 1.16 ( December 6th, 1999)
|1 - How to upgrade your HP49|
From ROM 1.19-5, you will need to follow a new procedure in
order to upgrade the calculator.
At present the following ROM update instructions are only valid under Windows 95/98/NT/2000.
In order to update your 49G's ROM, you need the HP Graphing Calculator PC Connectivity Kit 3.0, also known as HPComm 3.0. I.
If you are unsure of your ROM version, type VERSION and press [ENTER]. It will return two strings, with the first saying something like "Version HP49-C Revision 1.10". If your calculator shows anything less than the latest ROM version (1.18 is the latest official ROM and 1.19-5 is the latest beta ROM), it is time for an upgrade.
It is important that you use fresh batteries in your calculator when you attempt a software upgrade. The upgrade process uses more power than normal operations, and the upgrade will fail if the batteries are not fresh enough. If the operating system upgrade fails, you cannot use your calculator until you upgrade the operating system.
Also, back up the 49G's user memory to the PC, as you should do before transferring any new software onto your calculator.
1.1 - Updating the 49G's ROM
If you're running ROM 1.19-5 and higher, you can skip this procedure and jump to "1". On the PC:
From ROM 1.19-5, the HP49 is using an extra 64KB of Flash ROM. This 64KB used to be allocated by the user memory. Therefore, you need to save the content of this 64KB bank if you don't want to loose any files.
1.2 - On the PC:
1.3 - On the 49G:
1.4 - On the PC:
On the Flash upgrade dialog box:
1.5 - On the 49G:
The download program sent from the PC is now running.
1.6 - If it fails:
If it fails, your calculator will no longer operate properly until you re-flash the ROM. To do this, perform the following steps and then go back to 3. On the PC above:
|2 - ROM Fixes and Improvments|
2.1 - What's New from Release 1.19-4:
2.2 - What's New from Release 1.19-3:
2.3 - What's New from Release 1.19-1:
2.4 - What's New from Release 1.19-1:
2.5 - What's New from Release 1.18:
2.6 - What's New from Release 1.16:
2.7 - What's New from Release 1.10:
*When unzipping make sure the ROM file has a .flash extension. Depending on file associations this may be truncated causing it to no longer work with the flash download program (FDP).
|3 - HP48 ROMs|
|Prohibited during years due of copyright during
the last decade, HP48 ROMs finaly was liberated and are available
for download. Eric Rechlin maintain HPCALC.org, the greatest
repository of HP48/49 files in the web, where you can look for
HP48 ROM Version for download.
|The thing most beutifull in the world is the world itself.|