How to check duplicate or original Casio Fx-991EX calculator?

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  • Опубликовано: 16 дек 2024

Комментарии • 25

  • @deandavenport4907
    @deandavenport4907 6 месяцев назад +2

    Hold shift, 7, and on buttons all at the same time. You should get a diagnostics message. Before the message clears hit the 8 button. It should display a list of all the buttons you need to hit. Hit them one at a time and each line should be darkened. The buttons are 1, 5, ), X, shift, 9, log, and 0. Afterwards you should get a message that says, "Solar model OK!". Hit the AC button to return to normal operation. FYI, A small asterisk symbol should display in the top-right corner of the screen. It displays when the solar panel detects light. If the solar panel is covered the asterisk disappears. The asterisk condition remains even after a power-off, power-on. I'm not sure how to remove it, but it's pretty cool. I like having it there.

    • @afnanuddin-y7e
      @afnanuddin-y7e 5 месяцев назад +1

      dude the breakdown was really helpfull saved me a lot of time

    • @eec2224
      @eec2224 4 месяца назад +1

      Mine showed Battery model okay, does it mean that it's fake? Also the asterisk didn't come up

    • @deandavenport4907
      @deandavenport4907 4 месяца назад

      @@eec2224 MAKE SURE THE CALCULATOR IS EXPOSED TO LIGHT during the diagnostics. I covered my solar cell and went into the diagnostics as before. My calculator displayed "Battery model ok". Then, I removed the paper covering my solar cell and it changed to "Solar model ok".

    • @eec2224
      @eec2224 4 месяца назад

      @@deandavenport4907 I also scanned the QR code but it didn't lead me to authentication site

  • @Didarulislam-km7qn
    @Didarulislam-km7qn 4 месяца назад

    Vai tahile original ta kothay pabo.please bolen

  • @Anondo-m9c
    @Anondo-m9c Год назад +1

    Original ta akhon koi pabo?

  • @jisan_onDominance
    @jisan_onDominance Год назад

    ভাই, ডুপ্লিকেট টা কিনলে কী সমস্যা দেখা দেয় বলতে পারবেন প্লিজ?

  • @ertueertue6025
    @ertueertue6025 Год назад

    ☝️In VerB os, made in China (!), in diagnostic mode (shift,7,on) press:
    - 8 for a battery
    - 9 for full diagnostic (after checking LCD, AC move forward)

  • @Tuhinakter-t8p
    @Tuhinakter-t8p Год назад

    Bhai Ki Duet Admission E achen naki??

  • @t.aahamed5454
    @t.aahamed5454 Год назад +1

    Bhai koto diea kinsilen?

  • @ahadpine3640
    @ahadpine3640 Год назад +1

    Vai 991 cw original vs dublicate ak video dian

  • @StudyTime-xj1km
    @StudyTime-xj1km Год назад

    Vaia kothay theke kinechen ?

    • @Arafatsani1882
      @Arafatsani1882  Год назад

      ১০ নাম্বার সুপার মার্কেট থেকে।

  • @mdabdurrahman-iz6bp
    @mdabdurrahman-iz6bp Год назад

    Pls upload more video

  • @sajimthiago7774
    @sajimthiago7774 Год назад +1

    Bhai eta ki ekhn pabo?
    Ektu help korben?

  • @dipuroy725
    @dipuroy725 Год назад +1

    Kto taka diya kincen Vai

  • @MdMohiuddin-ki8zf
    @MdMohiuddin-ki8zf Год назад

    😮😮😮

  • @mdsumonmdsumon46
    @mdsumonmdsumon46 Год назад

    😮😮😮