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Downgrade to previous version after upgrade
01-27-2020, 03:53 AM
Post: #1
Downgrade to previous version after upgrade
I see HP Prime is having new firmware update (20200121). Currently I use 2018-10-16. If I upgrade to the new version 20200121 and for some reason wants to go back to previous version (2018-10-16), is it possible ? If so, how to downgrade to previous version?
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01-27-2020, 06:04 AM
Post: #2
RE: Downgrade to previous version after upgrade
hello,

Yes, you can downgrade.
To do so, you need to keep a copy of the current file, it is normally located in My Documents\HP Connectivity Kit\Firmware\G1 or G2 depending on the type of HW that you are using.

Make a copy of said directory (or zip it up)...
When you want to downgrade, just put back the original file and do the normal upgrade procedure to downgrade your calc to that file.
Cyrille

Although I work for the HP calculator group, the views and opinions I post here are my own. I do not speak for HP.
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01-27-2020, 06:23 AM
Post: #3
RE: Downgrade to previous version after upgrade
(01-27-2020 06:04 AM)cyrille de brĂ©bisson Wrote:  hello,

Yes, you can downgrade.
To do so, you need to keep a copy of the current file, it is normally located in My Documents\HP Connectivity Kit\Firmware\G1 or G2 depending on the type of HW that you are using.

Make a copy of said directory (or zip it up)...
When you want to downgrade, just put back the original file and do the normal upgrade procedure to downgrade your calc to that file.
Cyrille

I have copied \HP Connectivity Kit\Firmware\G1
to \HP Connectivity Kit\OLD\Firmware\G1
(and \HP Connectivity Kit\OLDER\Firmware\G1)
VPN
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01-27-2020, 07:12 AM
Post: #4
RE: Downgrade to previous version after upgrade
Got it. Thank you very much.
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01-27-2020, 08:35 AM
Post: #5
RE: Downgrade to previous version after upgrade
I think it does not remove it from the Temp directory actually...

So you probably have copies in there.

TW

Although I work for the HP calculator group, the views and opinions I post here are my own.
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01-27-2020, 09:55 AM
Post: #6
RE: Downgrade to previous version after upgrade
I just tried upgrade my HP prime G2 with the following steps:
1) upgrade myHP connectivity kit from HP website (connectivity kit Built 2.1.14425 (2020 1 16)
2) Connect my calculator with computer (Windows 10)
3) Start HP connectivity kit
4) Go to Help > Update Calculator
5) It prompted me the screen for update to 2018-10-16. (not 2020-01-21!). i proceeded upgrade and get 2018-10-16 version.

how can I get the update to 2020-01-16?
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01-27-2020, 01:57 PM
Post: #7
RE: Downgrade to previous version after upgrade
(01-27-2020 08:35 AM)Tim Wessman Wrote:  I think it does not remove it from the Temp directory actually...

So you probably have copies in there.

Old versions are also here:

ftp://ftp.hp.com/pub/calculators/Prime/Archive/

Tom L
I'm pining for the Fjords
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01-27-2020, 04:13 PM
Post: #8
RE: Downgrade to previous version after upgrade
Thank you. I got files from http://ftp.hp.com with successful upgrade.
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