G1 old firmware - where to find?

[komame]

Where can I find and download a very old firmware? I want to downgrade to version 7820 from 2015 or even 6975 from 2014. All firmware versions used to be available on hpcalc.org, but I can't find them now.
I believe I've detected a significant bug that greatly affects performance, but to be certain, I need to revert to an old firmware version (I hope my HP Prime will survive this) and then run some tests on physical G1 hardware.

[parisse]

https://tiplanet.org/forum/archives_list...t=OS+prime

[Eric Rechlin]

(08-22-2023 04:09 PM)komame Wrote:  Where can I find and download a very old firmware? I want to downgrade to version 7820 from 2015 or even 6975 from 2014. All firmware versions used to be available on hpcalc.org, but I can't find them now.
I believe I've detected a significant bug that greatly affects performance, but to be certain, I need to revert to an old firmware version (I hope my HP Prime will survive this) and then run some tests on physical G1 hardware.

All the old firmware versions show up on the Details pages if you are logged in. If you are not logged in, you will not be able to see the download links.