Upgrade Graph 25+Pro/35+/85 / fx-7400GII/9750GII/9860G/GII

[critor]

Preliminary checks and steps :

• P0) Supported models :
  
  Check you have one of the following
  Casio
  models :
  
  • fx-9750GII
  • Graph 35+
    /
    35+E
    /
    75
    /
    75+
    /
    75+E
    /
    95
    /
    85
    (
    SD
    )
  • fx-9860G
    (
    SD
    )
  • fx-9860G Slim
    /
    AU
    /
    AU+
  • fx-9860GIIs
  • fx-9860GII
    (
    SD
    )
  • fx-7400GII
    SH3
  • Graph 25+Pro
    SH3
  If it's the case, you may upgrade it by installing an OS targeting a superior model in this same list !
  
  If you have an
  fx-7400GII
  /
  Graph 25+Pro
  , check its processor type.
  
  SH4

  fx-7400GII

  /

  Graph 25+Pro

  models can neither been upgraded nor updated.
  
  
• P1) Choose your OS upgrade :
  
  Recommended and compatible OS upgrades :
  
  
  
  
  
  
  

  model name	fx-7400GII SH3	fx-9860G Slim	fx-9860G fx-9750GII / 9860GII SH3	fx-9860GIIs fx-9750GII / 9860GII SH4
  french name	Graph 25+Pro SH3		Graph 85 Graph 35+ / 75 / 95 SH3	Graph 35+E / 75+ / 75+E Graph 35+ / 75 / 95 SH4
  australian name			fx-9860G AU	fx-9860G AU+
  compatible upgrades	fx-9750GII SH3 / Graph 35+ SH3	specific patch	any SH3 OS	any SH4 OS
  best upgrade	Graph 35+ 2.01 (exact calc)	fx-9860GII / Graph 75 / 95 2.04 SH3 to patch (exact calc + vectors)	fx-9860GII / Graph 75 / 95 2.04 SH3 (exact calc + vectors + apps support + 1.5MB storage)	Graph 75+E 2.05 (exact calc + vectors + french exam mode)
  other upgrades (if regulations don't allow you the best)	fx-9750GII 2.01 (no exact calc)	fx-9860G Slim 2.00 (no exact calc + no vectors) fx-9860G Slim 1.11 (no exact calc + no vectors + no conversions)	fx-9860GII / Graph 75 / 95 2.08 (no vectors) fx-9860G / Graph 85 2.01 (no exact calc + no vectors)	Graph 75+E 2.09 (no vectors + french exam mode) fx-9860GII 2.09 (no vectors + generic exam mode) fx-9860GIIs 2.09 (no exact calc + no vectors + generic exam mode + no conversion)

  
  If your model name appears in both last columns, then you have to determine its processor type.
  
  About the different exam modes :
  
  • French exam mode : no expiration, elapsed time cannot be checked,
    PRGM
    application not disabled
  • Generic exam mode : 12 hours expiration, elapsed time can be checked with

    ALPHA

    (-)

    ,
    PRGM
    application disabled
  
  
• P2) Elements needed :
  
  
  • a PC running Windows XP or newer
  • the right calculator to computer link cable :
    
    

    • if your calculator has an USB port, usually on the top-left corner as pictured, its
      USB(A)↔mini-USB(B)
      cable
    • if not, you'll have to use the
      mini-Jack 2.5
      on the top-right corner, and will require a compatible
      USB(A)↔mini-Jack2.5
      interface
      
      (for example, http://www.util-pocket.biz/catalog/prod ... cts_id=424 )
• P3) Computer setup :
  
  If not already done, download and install the
  FA-124
  linking software.
  This is going to install the calculator drivers too.

A) Get the OS upgrade image :

Get an image of the OS you'd like to upgrade to either from the Internet, or from a real calculator already running it.
In the later case :

• borrow the calculator running the OS you'd like to upgrade to for some time
• choose and download the appropriate backup tool :
  
  • fxBackup205
    if you have an SH4 calculator with Boot Code
    2011.0531.1709
  • if not,
    fxBackup204
    if your OS version is 2.04 or higher
  • for all other cases, original
    fxRemote
    2.03
  If needed, check your Boot Code.
• right-click the downloaded zip file to extract its content to a real computer folder, and go into that folder
• launch the right tool
• connect the borrowed calculator to the computer
• put your calculator in
  OS Error
  mode
• click the
  Backup
  button in the tool window, type the file name and confirm
• once the backup has completed, press the
  restart
  /
  P
  button on the back of the calculator

B) Patch the OS upgrade image for your model :

• download the polyOS tool
• right-click the downloaded zip file to extract its content to a real computer folder, and go into that folder
• drag and drop your OS image on the
  polyos.exe
  file in that folder
  This should create in the same folder :
  
  • if supported, a file with the 2M suffix for an
    fx-7400GII
    /
    Graph 25+Pro
    /
    25+E
    calculator
    
    In that case, the OS being bigger than the model ROM, the tool may prompt you for the non-english languages you'd like to keep on the calculator.
  • a file with the 4M suffix for all other calculators

C) Prepare the computer to flash :

• download and choose the appropriate
  fxRemote 2.03
  flashing tool :
  
  • fxRemote2M4M
    if you are attempting to upgrade a
    fx-7400GII
    /
    Graph 25+Pro
    calculator
  • if not,
    fxRemoteE205
    if your have an SH4 calculator with Boot Code
    2011.0531.1709
  • for all other cases, the original
    fxRemote
  If needed, check your Boot Code.
• right-click the downloaded zip file to extract its content to a real computer folder, and go into that folder
• if your calculator has an
  USB
  port, now just run the right
  fxRemote
  
  if not, you need to identify your interface cable
  COM
  port :
  
  
  • start by listing your currently available
    COM
    ports :
    
    • be sure your interface cable is disconnected from the computer
    • launch the right
      fxRemote
      tool
    • in the
      cable
      zone, select the
      3Pin
      option
    • if the option is greyed out, then your currently have no
      COM
      port
      if not, note the available
      COM
      ports in the then appearing drop-down menu
    • close
      fxRemote
  • now connect your interface cable to the computer
  • relist the now available
    COM
    ports :
    
    • relaunch
      fxRemote
    • in the
      cable
      zone, select the
      3Pin
      option
    • note the available
      COM
      ports in the then appearing drop-down menu
    • close
      fxRemote
  • you should have found 1 additional
    COM
    port - that's your interface
    COM
    port, just select it
• if you are attempting to upgrade a
  fx-7400GII
  /
  Graph 25+Pro
  calculator, check the
  "Recover Main memory backup area"
  option

D) Prepare the calculator to be flashed :

Put your calculator in

OS Error

mode.

E) Reflash the calculator :

• in the
  fxRemote
  window, click the
  Recover
  button, and specify the right 2M/4M postfixed patched image.
• Confirm the process.
• Once and only once the process has completed and that the calculator has restarted and is back to the applications menu, press the
  restart
  or
  P
  button on its back.

- end of the tutorial -

Annex :

CPU type check :

Go to top

• type

  MENU

  , then go into the
  SYSTEM
  application
• type

  F4

  to get the system version
  
  You should have the version string displayed as XX.XX.XXXX, with a digit in place of each X.
• Look at the last digit, thus the 8th one with this format :
  
  • If it's a 0, then you have an SH3 model.
  • It it's a 1, then you have an SH4 model.

Boot Code check :

Go to top

• turn the calculator off
• press and hold

  OPTN

  x10^x

  on Graph models, or

  OPTN

  EXP

  on fx- models
• without releasing these 2 keys, press and hold

  AC

  
  
  You should get a DIAGNOSTIC MODE popup
• now release all 3 keys
• type

  F1

  and then

  9

  
  
  You should now get the diagnostic menu
• type

  4

  
  
  You should now get 2 datestamps, a DateO one, and a DateA one. The DateA one is your Boot Code datestamp.

OS Error mode :

Go to top

To put your calculator in

OS Error

mode, depending upon your model :

generic model name	fx-7400GII / fx-9750GII / fx-9860GII / GIIs	fx-9860G / fx-9860G Slim
french name	Graph 25+Pro / 25+E / 35+ / 35+E / 75 / 75+ / 75+E / 95	Graph 85
australian name	fx-9860G AU+	fx-9860G AU
	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 You should now get the OS ERROR screen. release the × key	turn off calculator insert a conductive long item like an unpainted paperclip in the hole on the back near the P button to close the internal P104 jumper while keeping the P104 jumper closed, press and release the P button on the back (notice : you may need more than 2 hands...)

[parrotgeek1]

Thanks! I was actually writing a tutorial because I couldn't find one in English. Do you happen to have 2.09 for Slim?

[critor]

Thanks! I was actually writing a tutorial because I couldn't find one in English. Do you happen to have 2.09 for Slim?

Thank you.

2.09 is SH4 only and so won't work on the fx-9860G Slim.
You need an SH3 OS.

[parrotgeek1]

Thanks! I was actually writing a tutorial because I couldn't find one in English. Do you happen to have 2.09 for Slim?

Thank you.

2.09 is SH4 only and so won't work on the fx-9860G Slim.
You need an SH3 OS.

I meant 2.08

[critor]

Thanks! I was actually writing a tutorial because I couldn't find one in English. Do you happen to have 2.09 for Slim?

Thank you.

2.09 is SH4 only and so won't work on the fx-9860G Slim.
You need an SH3 OS.

I meant 2.08

Ok. 2.08 hasn't been patched for the fx-9860G Slim different keys matrix.
You'd need to RE the currently available 2.04 patch and adapt it for 2.08.

Anyway, 2.04 is better than 2.08.
2.08 is removing the vectors support added with 2.04

(to comply with IB regulations)

, and thus is similar to the old 2.01.

[parrotgeek1]

Thanks! I was actually writing a tutorial because I couldn't find one in English. Do you happen to have 2.09 for Slim?

Thank you.

2.09 is SH4 only and so won't work on the fx-9860G Slim.
You need an SH3 OS.

I meant 2.08

Ok. 2.08 hasn't been patched for the fx-9860G Slim different keys matrix.
You'd need to RE the currently available 2.04 patch and adapt it for 2.08.

Anyway, 2.04 is better than 2.08.
2.08 is removing the vectors support added with 2.04

(to comply with IB regulations)

, and thus is similar to the old 2.01.

OK.

(Why does this forum nest quotes infinitely? Can there be a limit?)

Have you looked at my 4.4 patches yet?

[critor]

Thanks! I was actually writing a tutorial because I couldn't find one in English. Do you happen to have 2.09 for Slim?

Thank you.

2.09 is SH4 only and so won't work on the fx-9860G Slim.
You need an SH3 OS.

I meant 2.08

Ok. 2.08 hasn't been patched for the fx-9860G Slim different keys matrix.
You'd need to RE the currently available 2.04 patch and adapt it for 2.08.

Anyway, 2.04 is better than 2.08.
2.08 is removing the vectors support added with 2.04

(to comply with IB regulations)

, and thus is similar to the old 2.01.

OK.

(Why does this forum nest quotes infinitely? Can there be a limit?)

Have you looked at my 4.4 patches yet?

No, not yet. I'm very busy this week. Believe it or not, I haven't changed anything to ControlX 4.4.1 since last week-end.
Even this Casio tutorial + the required polyOS v2 tool are just things already developed weeks ago.

[Cakeisalie5]

Still, a notice to distinguish SH3 (SH7355/SH7337) from SH4 (SH7305) models would be nice

[critor]

Thanks - done !

[Ti64CLi++]

A quand la version française?