I discovered what is happening. After pressing all buttons, a have to test "battery mode" putting something up solar cell to test battery. And then remove it to tests "solar mode"!
At the end of the first test, there is no "Solar Model OK!" reading, even after waiting and trying again and again, does that mean that my solar Model is broken?
I have two of this calculator but only one shows The message"solar model ok" and sometimes it just stay on the button's screen selection. The other calculator never shows this message. But both is the same model"verB". Do you have any idea what is goin on?
HOla, ya arreglaron esto "6÷2 (2+1)" en esta versión? Ya que las anteriores incluido la Fx-991 daba como resultado 1, el cual es un error ya que el resultado tendría que ser 9
fx-991EX автоматически вставит скобки, чтобы правильно понять логику и приоритеты операций. В данном примере пробел надо ставить после ÷, чтобы получилось 6÷ 2(2+1). После ввода 6÷2(2+1) на экране будет 6÷(2(2+1))
How can you remove the sun icon on the top right?? It goes kind of reverse that means display is really dim inside and very bright outside on the sun. How can I change it?? Help somebody
This sun sign just means that the calculator is powered by a solar panel instead of internal batery. Inside a room, this sign goes out and means the battery is used up.
Shame you couldn't add some explanation of what exactly you are doing.
true
did anybody notice that the on button is slightly lower than all other circular buttons? why?
ON button is slightly lower to prevent unexpected turning on calculator when accidental squeezing of the buttons
Sergei Frolov ow. thanks. i thought my calc. was broken thanks for the reply!
I was about to return the calculator due to that
I was about to return the calculator due to that
It's on all line of Casio calculator except the s-v.p.a.m one if I remember
I discovered what is happening. After pressing all buttons, a have to test "battery mode" putting something up solar cell to test battery. And then remove it to tests "solar mode"!
Lucas Lima thanks
You dont know but you have taught me a great trick
At the end of the first test, there is no "Solar Model OK!" reading, even after waiting and trying again and again, does that mean that my solar Model is broken?
just cover the panel with your finger and remove it
at 1:35 I have "VER B", does it mean they patched any possible hack like the fx 82 ms overflow which converted her into 570 ms ?
Mine is VERF
I have two of this calculator but only one shows The message"solar model ok" and sometimes it just stay on the button's screen selection. The other calculator never shows this message. But both is the same model"verB". Do you have any idea what is goin on?
Does this Casio have memory safeguard to save your (equation and answer) after it auto times-out?
+George Obregon
Calculator clear equation memory after turning off. Answer memory still exist.
after 0:53 no change! Doesn't show " Solar MODEL OK ! " why?
I need to press any button after pressing those eight buttons ( 1 , 5 , ... ,0)
You have to wait
@@leosefcik Tried, still not working.
cover it with your finger so the calcu detects the change in light levels
hey,, this part i dont understand where did you get the logab 0:27 the part of [logab] reply fast i need it now
See after 0:45 same with keypad
The “logab” function is the “x!” button.
hi there. Are there really two-like triangle/pyramid on the middle part just beneath the lcd? Thanks
yes
What is the default contrast ?
Just do a global reset and it will be default.
Hi my one shows battery model Ok instead! is it okay to show that?
Mine too bt how to activate solar ?
HOla, ya arreglaron esto "6÷2 (2+1)" en esta versión? Ya que las anteriores incluido la Fx-991 daba como resultado 1, el cual es un error ya que el resultado tendría que ser 9
fx-991EX автоматически вставит скобки, чтобы правильно понять логику и приоритеты операций. В данном примере пробел надо ставить после ÷, чтобы получилось 6÷ 2(2+1). После ввода 6÷2(2+1) на экране будет 6÷(2(2+1))
How can you remove the sun icon on the top right??
It goes kind of reverse that means display is really dim inside and very bright outside on the sun.
How can I change it?? Help somebody
This sun sign just means that the calculator is powered by a solar panel instead of internal batery. Inside a room, this sign goes out and means the battery is used up.
@@SergeiFrolovMuseum that is not happening in my case
And when I cover the solar panel entirely by my hand only then it goes out
@@themanhut It's all right. There's a built-in capacitor that holds a charge for a while.
@@SergeiFrolovMuseum What should I do now?
@@themanhut Nothing is required. Keep the calculator closer to light and the battery will need to be replaced less frequently.
why did u zoom in and out i didn’t get clearly which button did u touch lol
Can u please show how to reset all settings in it including contrast level.... Please reply.....
Hold [7] [SHIFT], press and release [ON] (Message Diagnostic shown) , then depress all keys, then press [8], then [ON]
@@SergeiFrolovMuseum thank u very much dear....
@@SergeiFrolovMuseum make a video on it... It will be helpful for many users....
Does anybody know why it didn’t work for me?
MI CALCULADORAfx-991EX falla el display y se borra la imagen, solo cuando esta espuesta al sol
the serial key is not same bro...what's the reason? I live in bangladesh.
serial number is different on every calculator.. my may have no.2 your no.3 etc...
What button is to be pressed at 0:28 seconds for (log ab)
See from 0:50
The white X below the ON button.
А этот тест всё из ОЗУ стирает? Или теперь так не делают?
Tormoz Edison Да, вроде стирает.
Ну Casio даёт - десятилетиями традиций придерживается!
how do i get the serial number to show up?
SHIFT + 7 + ON then 6 then 2
Hey Sergei , Kate found the treasure.
The message"Solar system is OK" is not showing. And 0,1,2,3,4 is displaying in the second test only. What does it mean?
Try again
How to get rid of the sun symbol on the top right corner.
cover the solar panel with your hand
no se escucha el audio de tu video
How to remove sun icon from calculator. I have charged the calculator in sunshine for 1 to 2 hours. ?
You can't charge batteries. Sun icon means that solar power user instead of batery
So do you mean if batteries are not replaced , the sign will remain ?
How did you did that
Why does my calculator says "Battery MODEL" instead of "Solar MODEL".
May be it need more light while testing
@@SergeiFrolovMuseum oh ok.. gotcha
What is this supposed to do?
whats meaning of version a and b
Similar test works on FX-991ES PLUS.
it doesn't work with mine
whats the purpose of those hidden mode?
Factory testing
It,so solar panel works or not
Thanks a lot bro!
i thought i was the only one to see this lol
Thanks...... helps a lot.....
where is the audio???????
why it doesnt show on me
Does anyone know what the default contrast value is?
Just reset calculator settings and you'll see
@@schaubale3228 yeah, kinda figured that out 😂
How much dollars it cost?
~USD 20
Sergei Frolov thanks
how to understant if the calculator is real or fake
Never heard about fakes of this model. "CASIO" logo at off.
real one is made in china or made in thailand? on the packet
It's made in Thailand
what key to press after 0:31? help.......
No keys need after pressing last key for keybard testing
1:41 I can hack your cal. Hahahahah
My calculator is 100.1% real
I have the next calc
Type:fx-911DEX
German version
0:55 it showed me battery model OK !
And what's the point?
rafaelaprende to check if your calculator is fully functional or not
1:30why is mine VerF
It means it's newer tham VerA.
Mine too
godd