Nspire CX "bricked" in Press-to-Test

[critor]

I get the clock cursor showing, but then nothing happens, only the documents getting cleared (both ndless and the Press-to-Test folder)

Strange...

Maybe it's the BootData partition which is corrupted then.
Unfortunately, polydumper doesn't dump it, only BtMg.

[critor]

Attached is an untested polydumper build which should also dump the BootD partition as bootd.img.tns.

[zomg]

Here is the BootD img file

bootd.img.tns

[critor]

Thanks. Checking.

[critor]

Doesn't look like a BootD partition.
https://hackspire.org/index.php/NAND_Memory_Layout

So either it's corrupt, either I made an error when modifying polydumper. I'll check with my calculator.

If it's the partition which is corrupt, yes it can crash BtMg / nsNandMgr, since both tools are handling informations from the BootD partition.

[critor]

Attached is an early build of a partition cleaner.
It only supports the BootD partition for now.

Could you just try running it and sharing some pictures of the screens ?

Don't press

y

to reflash for now at the end of the messages.

Thanks.

[zomg]

After the second screen, I stopped and have not pressed anything yet.

IMG_0708.JPG

IMG_0709.JPG

[critor]

Indeed, your BootD partition is corrupt, or there would have been no "fixing page" message.

No issue here on emulator.
You can try pressing

y

and then take another picture with the added messages.

Beware that there is still a risk.

[zomg]

Seems to continue without issues. Pressing any button after this screen just returns to the documents list.

IMG_0710.JPG

[critor]

Seems ok, thanks.
I think the exam mode should be gone after the next reboot.

So can you reach the BtMg home screen now ?
If yes, a picture will be useful to figure out your calculator current state.