newRPL: [UPDATED April 27-2017] Firmware for testing available for download

[Francois Lanciault]

(01-22-2016 03:49 PM)Helix Wrote:  Just for information:
I've tried to install the last version of newRPL on my HP50g, and this time I've had a lot of difficulties.

After the traditional update and reset procedure, the screen displayed "exception data abort".
CONT, EXIT, shift WARMSTART and Shift RESET returned to the same screen.
OFF didn't work.
ON-A-F didn't work either.
Reset with a paperclip returned to the same screen.
Removing a battery didn't work, because as soon as the battery was inserted, the calculator still displayed the same screen.

I've tried to install previous versions of newRPL that was saved in my PC, and to my surprise they didn't work either, showing the same problem. Flashing the calculator with the original HP ROM worked perfectly, but flashing again with newRPL returned to the same problem, but with a different screen: "exception : corrupted MMU".

I've found a solution: pressing Shift RESET, and very very quickly pressing ON-A-F. It was quite challenging, but this time I could wipe the memory. Since the calculator seems to work normally with the last version of newRPL.

I had the same problem. What solve it for me was to remove all batteries including the memory backup one. I was then offered the option to wipe memory.

I also got another problem (the last 3 updates). After the update and reset (or battery removed) I end up with a blank screen with the exception of the flashing "pulse" indicator and the right shift indicator. The pulse indicator is flashing and the right shift indicator is always on. No keys works no way to turn off. When I reset I end up with the same screen. Same as Helix for re-installing the firmware. I was able to do ON-A-F and ON-A-C and ask for memory wipe/restart/whatever but it would always go back to that strange blank screen with the two indicators. Again removing all batteries seems like the only way to make it work.

François