System Error

[pmsn]

Hello!

I have a problem which i think i can solve but im not sure and i rather not invest money more money in a broken calculator.
I have a TI-Nspire CX with model revision O (the back side of the calculator is white).
I followed this tutorial https://tiplanet.org/forum/viewtopic.php?t=13213&lang=en and since all classmates have the back side dark blue and i have white i though that mine was a previous model and the model was a 0 at the back like P04140 but instead it is a O.
So after i flashed the boot2 using the nandmgr i rebooted the calculator and it got system error message
It is broken. I googled and found a fix http://tiplanet.org/forum/archives_voir.php?id=3507.
My questions are can i use an arduino has a usb ttl converter and if i do this procedure the calculator will be back to normal?

Thanks,
Pedro

[critor]

If you reflash a Boot2 image compatible with your hardware revision (3.2.4.7+ for HW-J+) thanks to an USB/TTL interface, yes the calculator will be back to normal.

[pmsn]

If you reflash a Boot2 image compatible with your hardware revision (3.2.4.7+ for HW-J+) thanks to an USB/TTL interface, yes the calculator will be back to normal.

Thanks for clearing my doubt