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Help I Think I Broke My Calculator


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#1 samuelJohnson

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Posted 04 April 2019 - 12:11 AM

I tried to update my fx 9750gii and now it wont turn on

#2 GodOfCows

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Posted 04 April 2019 - 02:53 PM

Tried hitting the reset button. Is there just a blank image when trying to turn on the calc?



#3 samuelJohnson

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Posted 05 April 2019 - 05:34 PM

Yes it doesn't turn on at all all there is is a blank image



#4 GodOfCows

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Posted 09 April 2019 - 03:16 PM

Have you also tried new batteries?



#5 critor

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Posted 09 April 2019 - 08:59 PM

Try to force your calculator into "OS Error" mode :

  • press and hold the restart button on the back
  • without releasing it, press and hold the [F2][4][AC] keys
  • without releasing these 3 keys, release the restart button
  • now only release the [F2][4] keys together
  • wait a second
  • now finally release the [AC] key
  • press and hold the [9] key
  • wait a second
  • release the [9] key
  • press and hold the [×] key

If the calculator turns on and shows you an "OS Error" screen, then it's not broken and you just need to reinstall a compatible OS.


Edited by critor, 09 April 2019 - 09:00 PM.





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