Author Topic: problems about nspire cx maybe prototype?  (Read 10108 times)

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Offline ust

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Re: problems about nspire cx maybe prototype?
« Reply #15 on: March 26, 2013, 07:09:57 am »
It looks like a sample (not a prototype), yes, but informations so far match the production hardware and not the development hardware.

By the way, could you share a photo of the back of the calculator with us please?

Sure. Here's the pic.  The only difference is the tag
« Last Edit: March 26, 2013, 07:10:29 am by ust »

Offline ust

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Re: problems about nspire cx maybe prototype?
« Reply #16 on: March 26, 2013, 07:11:45 am »
It looks like a sample (not a prototype), yes, but informations so far match the production hardware and not the development hardware.

By the way, could you share a photo of the back of the calculator with us please?
But "NSC" would be Nspire Color ? "4+4 layer" would be about the motherboard layers ? looks a bit surprising if that's the case.

pic is coming

Offline critor

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Re: problems about nspire cx maybe prototype?
« Reply #17 on: March 26, 2013, 10:19:46 am »
When your calculator boots, do you have a small blank sign/symbol in the top left-hand corner of the screen?

If yes, your calculator is operating in development mode and will only accept development OSes unless this can be changed.
If no, you're supposed to be able to load it with any compatible production OS.


In order to solve the "4+4 layer" mystery, you'll need to open the calculator and show us some pictures of the motherboard.
We can then compare those with our own pictures.
« Last Edit: March 26, 2013, 10:21:21 am by critor »
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Offline ust

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Re: problems about nspire cx maybe prototype?
« Reply #18 on: March 26, 2013, 11:00:20 am »
When your calculator boots, do you have a small blank sign/symbol in the top left-hand corner of the screen?

If yes, your calculator is operating in development mode and will only accept development OSes unless this can be changed.
If no, you're supposed to be able to load it with any compatible production OS.


In order to solve the "4+4 layer" mystery, you'll need to open the calculator and show us some pictures of the motherboard.
We can then compare those with our own pictures.

There's no signs or something else in that position.

But I'm wondering if the space error message will appear again after I enter maintenance, complete format and try to install OS...

any materials to show how to take the cal apart? there're 6 screws below the battery, 2 beside and 2 at the bottom...I'm trying..

Offline critor

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Re: problems about nspire cx maybe prototype?
« Reply #19 on: March 26, 2013, 11:04:32 am »
Yes, performing the complete format and reinstalling an OS should solve your problem.

Once you've removed the screws, opening the calculator is quite easy by just applying pressure inside the battery compartment.
2 screws are usually hidden under both top pads.
« Last Edit: March 26, 2013, 11:04:50 am by critor »
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Offline ust

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Re: problems about nspire cx maybe prototype?
« Reply #20 on: March 26, 2013, 11:14:38 am »
Yes, performing the complete format and reinstalling an OS should solve your problem.

Once you've removed the screws, opening the calculator is quite easy by just applying pressure inside the battery compartment.
2 screws are usually hidden under both top pads.

Thank you so much. I'll try that...
Unfortunately, the two screws beside the battery are too small, no suitable screwdriver at hand...
« Last Edit: March 26, 2013, 11:17:34 am by ust »

Offline critor

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Re: problems about nspire cx maybe prototype?
« Reply #21 on: March 26, 2013, 12:00:33 pm »
Yes, there are special shaped screws.

But using a thin flat screw driver did work for me.
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Offline northern_snow

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Re: problems about nspire cx maybe prototype?
« Reply #22 on: April 04, 2013, 01:03:02 am »
Report:
This problem was solved by complete formating and reinstalling the OS.
But the cause is still unknown.

Offline critor

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Re: problems about nspire cx maybe prototype?
« Reply #23 on: April 04, 2013, 05:00:35 am »
We'd still like to have shome photos of the 4-layer PCB ;)
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Offline northern_snow

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Re: problems about nspire cx maybe prototype?
« Reply #24 on: April 10, 2013, 09:54:43 am »
This kind of test sample model came from taobao.com
Here is another report: www.cncalc.org/forum.php?mod=viewthread&tid=8574
Still with production boot 1/2 and normal OS. However file transfer is still unavailable.
I am contacting the buyer and asking for the photos.

Offline ust

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Re: problems about nspire cx maybe prototype?
« Reply #25 on: April 16, 2013, 12:35:12 pm »
We'd still like to have shome photos of the 4-layer PCB ;)
sorry for the late.
I have got the proper tools, and removed the 2 T6 screws at bottom, 2 hidden tiny screws at top and 2 tiny screws in the battery compartment...
But, it seems with some pressure inside the battery compartment, there's nothing happens... the case is still tight...
should we first deal with the two white bars at both sides?

Offline ust

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Re: problems about nspire cx maybe prototype?
« Reply #26 on: April 20, 2013, 07:33:25 am »
We'd still like to have shome photos of the 4-layer PCB ;)

Thanks for the instruction..

pics come


Offline critor

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Re: problems about nspire cx maybe prototype?
« Reply #27 on: April 20, 2013, 02:09:41 pm »
Thank you for your pics.

I've just newsed on this mistery:
http://tiplanet.org/forum/viewtopic.php?t=11628

I've proposed an explanation after analysing TI-Nspire CX PCBs from HW-A to HW-F.
I might be wrong and without further information, my guess is as good as yours.
« Last Edit: April 20, 2013, 02:10:06 pm by critor »
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