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Red screen. Need some help!

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Re: Red screen. Need some help!

Message non lude critor » 20 Déc 2019, 18:43

I'm sorry, I'm unable to get a red screen here.

So I'll need a list of what you did before you got the red screen for the first time, as accurate and comprehensible as possible.
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Re: Red screen. Need some help!

Message non lude vhrks » 21 Déc 2019, 01:29

critor a écrit:Hardware Revision D is ok.

But do you remember the calculator Operating System version ? 4.5.0 ? 4.5.1 ? 4.5.2 ?...
Did you install the latest 4.5.2 version ?

Could you explain what you did before the red screen appeared for the first time ?

Thanks.


1. This calc is not mine. My friend owned it.

2. My friend bought it from south korea ebay. The seller said it is non-cas, but he installed cas to non-cas.

3. One day, my friend booted the calc, and the calc didn't work. Every time he press the "enter" to use the calculator, (for example, he wanted to know about waht is 2+2, so he entered 2+2 and pressed enter) the calculator rebooted himself.

4. So my friend gave me this calculator, but I did not know about control x thing.

5. SonI did a factory reset, and uploaded 4.5.2 os for non-cas.

This is what I did. May be factory reset gone something wrong, but I don't know why the red screen comes out.
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Re: Red screen. Need some help!

Message non lude critor » 21 Déc 2019, 09:04

Thank you for your reply.

vhrks a écrit:1. This calc is not mine. My friend owned it.

2. My friend bought it from south korea ebay. The seller said it is non-cas, but he installed cas to non-cas.

3. One day, my friend booted the calc, and the calc didn't work. Every time he press the "enter" to use the calculator, (for example, he wanted to know about waht is 2+2, so he entered 2+2 and pressed enter) the calculator rebooted himself.


Making the CAS engine work on a non-CAS hardware requires a little patch, installed in the /ndless/startup/ folder. And this patch needs Ndless.
Probably the patch or Ndless stopped working for some reason (files removed, folder renamed, update to a CAS OS not supported by Ndless or the patch...)

vhrks a écrit:4. So my friend gave me this calculator, but I did not know about control x thing.

5. SonI did a factory reset, and uploaded 4.5.2 os for non-cas.

Do you remember what you did to perform the factory reset ?

I've tried installing OS 4.5.2 after removing ControlX and/or nBoot, but so far I couldn't trigger the red screen.
There are so many elements which could interfere with different versions available each time : nBoot, ControlX (4.5.0), Boot2, OS, Ndless, and patcher.


Could you charge the battery ? Then you could :
  • invoke the maintenance menu
  • remove the OS (option #2)
  • on the "install OS" prompt, check the calculator content with the TI-Nspire Computer Link software (and share a capture if possible)
  • same thing with the /ndless/ folder if still present (capture)
  • and still with the TI-Nspire Computer Link software, check the calculator Boot1 and Boot2 versions with the Tools menu (capture)
Thanks.
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Re: Red screen. Need some help!

Message non lude critor » 21 Déc 2019, 13:43

Ok just got it, I think we could figure out what's happening :
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nBoot+ControlX were installed on your calculator, but clearly don't work anymore. They aren't responsible for the red screen.

Another boot loader was installed on your calculator, nLoader, and it's still active.

So yes, it's a calculator on which both nBoot+ControlX and nLoader were installed together.

Unlike nBoot+ControlX, nLoader is semi-bricking calculators with an unsupported OS.
nLoader doesn't support OSes 4.5.1 or 4.5.2, hence the red screen.

We've got tutorials for installing nBoot+ControlX or nLoader. Our tutorials have been designed to get you an almost unbrickable calculator if followed accurately.
But we don't have tutorials for installing nBoot+ControlX and nLoader together. Adding nLoader over nBoot+ControlX is pretty useless and also very dangerous without a specific tutorial.

Try this :
  • invoke the maintenance menu and remove the OS (option #2)
  • and then install an nLoader-compatible OS, like version 4.5.0 for example
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Re: Red screen. Need some help!

Message non lude vhrks » 22 Déc 2019, 02:00

critor a écrit:Ok just got it, I think we could figure out what's happening :
Image

nBoot+ControlX were installed on your calculator, but clearly don't work anymore. They aren't responsible for the red screen.

Another boot loader was installed on your calculator, nLoader, and it's still active.

So yes, it's a calculator on which both nBoot+ControlX and nLoader were installed together.

Unlike nBoot+ControlX, nLoader is semi-bricking calculators with an unsupported OS.
nLoader doesn't support OSes 4.5.1 or 4.5.2, hence the red screen.

We've got tutorials for installing nBoot+ControlX or nLoader. Our tutorials have been designed to get you an almost unbrickable calculator if followed accurately.
But we don't have tutorials for installing nBoot+ControlX and nLoader together. Adding nLoader over nBoot+ControlX is pretty useless and also very dangerous without a specific tutorial.

Try this :
  • invoke the maintenance menu and remove the OS (option #2)
  • and then install an nLoader-compatible OS, like version 4.5.0 for example



Lovely. Thanks. I will try... But first I need to charge my calc... I tried to charge almost 24 hours but no changes at all...
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Re: Red screen. Need some help!

Message non lude critor » 22 Déc 2019, 10:15

I think the battery won't charge unless you're in the OS or Diagnostic software, both impossible for you for the moment. :(
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Re: Red screen. Need some help!

Message non lude vhrks » 22 Déc 2019, 16:27

critor a écrit:I think the battery won't charge unless you're in the OS or Diagnostic software, both impossible for you for the moment. :(

I gonna borrow some calc from others...
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Re: Red screen. Need some help!

Message non lude Marco17 » 10 Fév 2020, 05:06

critor a écrit:Ok just got it, I think we could figure out what's happening :
Image

nBoot+ControlX were installed on your calculator, but clearly don't work anymore. They aren't responsible for the red screen.

Another boot loader was installed on your calculator, nLoader, and it's still active.

So yes, it's a calculator on which both nBoot+ControlX and nLoader were installed together.

Unlike nBoot+ControlX, nLoader is semi-bricking calculators with an unsupported OS.
nLoader doesn't support OSes 4.5.1 or 4.5.2, hence the red screen.

We've got tutorials for installing nBoot+ControlX or nLoader. Our tutorials have been designed to get you an almost unbrickable calculator if followed accurately.
But we don't have tutorials for installing nBoot+ControlX and nLoader together. Adding nLoader over nBoot+ControlX is pretty useless and also very dangerous without a specific tutorial.

Try this :
  • invoke the maintenance menu and remove the OS (option #2)
  • and then install an nLoader-compatible OS, like version 4.5.0 for example


i met the same problem.my cx cas was installed nloader and accidently upgraded to os4.5.1.12.But the cx student software don't allow me to downgrade my calc to os 4.5.
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Re: Red screen. Need some help!

Message non lude screamstar2004 » 21 Mar 2021, 16:24

i have the same problem
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Re: Red screen. Need some help!

Message non lude critor » 21 Mar 2021, 20:07

Very strange, as I have updated nLoader with support for the latest OS versions.
Or maybe you didn't download it here ?
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