Hello,

I Apologize if this is the wrong board to post on.

I have used Ptune2 by sentaro21 to try overclocking my calculator.
While running the tests I noticed something strange: my calculator supposedly reached clocks of up to 7.7GHz Very Happy . At one point the screen started showing strange rainbow artifacts which I am guessing is a problem with RAM. Once it finished it looked like it was fine, but once I pressed a button it suddenly crashed.

Now once I boot into it I get the error:

System ERROR
ADDRESS(R)
TARGET = 555C006D
PC = 8C15FFB8

I press exit to reboot and it reboots back into the same error.
What I have tried:
Reflashing the OS using F2 + 4 + AC/ON + Restart combo. This seemed to work fine but the calculator still reboots into the same error.
I cleared all of the flash storage, which didn't help either.

I can boot into examination mode with no issues, I even backed up all of my files and it works perfectly fine.

Any help/suggestions? Thank you.
Have you done reset/initialise all from the main menu’s settings?

Also try Press the RESTART button plus [OPTN]+[EXP]+[AC/ON] and hold all down.
Release the RESTART button
Wait until the screen becomes white.
Now release the remaining three keys.
Note: not pressing the restart button opens the diagnostic mode.
Now press and hold [MENU]. A menu will appear:
[F1] will Erase User Flash Area, clearing flash memory from 0xA0C00000 to 0xA2000000.
Thank you very much for replying!

amazonka wrote:
Have you done reset/initialise all from the main menu’s settings?


I cannot do this because I can't boot into the OS. All I can do is enter examination mode which works fine, but there you can't change any settings whatsoever.

EDIT: Is the system partition split into two parts? Separate for the examination mode and the "main" os? It's weird to see examination mode working fine, calculation works flawlessly too.

amazonka wrote:
Also try Press the RESTART button plus [OPTN]+[EXP]+[AC/ON] and hold all down.
Release the RESTART button
Wait until the screen becomes white.
Now release the remaining three keys.
Note: not pressing the restart button opens the diagnostic mode.
Now press and hold [MENU]. A menu will appear:
[F1] will Erase User Flash Area, clearing flash memory from 0xA0C00000 to 0xA2000000.


It stops erasing at Adr: A1FE0000 no matter how long I hold it. Then I restart the calculator. The dialog shows "one moment please" before it reboots and then goes back to the same error Sad
Weird indeed - A1FE is probably fine as it is probably screen not updating to A200 - what I would try are other options on that menu besides F1 too. Also after doing those erases perhaps another emergency os update
amazonka wrote:
what I would try are other options on that menu besides F1 too


This worked perfectly! I did all of the options in the menu and it booted right into the calculator setup. Thank you very much! I will be more careful next time tinkering with software like PTune2 Smile
  
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