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Please need help with fx-9750GII

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Junior Member
Posts: 2
Joined: Tue Mar 11, 2014 4:42 am
Calculators: Casio fx-9750 G II

Please need help with fx-9750GII

Postby brleoal » Sun Mar 16, 2014 8:30 pm

Hi everyone:

I make this post because I need help for my calc fx-9750GII.
Last a two days, I made and upgrade of OS from fx-9750GII to fx-9860GII
It works perfectly.

The problem is if I want to downgrade to the previous version (factory default) how can I do that, because I don't have a copy of the default OS (which is OS 2.02.0701)

Please, if anyone have this version on your calculators, can you send it to me to my email brleoal@gmail.com , I will appreciate this favor.

Thanks

Junior Member
Posts: 2
Joined: Sun Feb 09, 2020 4:54 pm
Calculators: Casio fx-9750 G II

Re: Please need help with fx-9750GII

Postby extramad11 » Sun Feb 09, 2020 5:02 pm

brleoal wrote:Hi everyone:

I make this post because I need help for my calc fx-9750GII.
Last a two days, I made and upgrade of OS from fx-9750GII to fx-9860GII
It works perfectly.

The problem is if I want to downgrade to the previous version (factory default) how can I do that, because I don't have a copy of the default OS (which is OS 2.02.0701)

Please, if anyone have this version on your calculators, can you send it to me to my email brleoal@gmail.com , I will appreciate this favor.

Thanks


Can you please send me a copy of the flash file you used to upgrade your fx-9750GII to fx-9860GII (OS 2.02.0701) for I have been searching for a long time with no luck. Thank you for the reply,
This is my email, jmd_abad07@yahoo.com

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