cm工程机建议升级吗？
本帖最后由 1172884664 于 2020-3-5 14:29 编辑设备详情如下，我的文档里面还有类似开发者文件
看旧贴了解到貌似工程机不能升级系统 亲测不能升级系统（电脑提示系统文件损坏或无效），安装ndless直接重启，所以有没有什么方法升级到正常系统？
刚查了下价格，这价干嘛不买cx…… 我有一只测光表 发表于 2020-3-5 18:14
刚查了下价格，这价干嘛不买cx……
cx我有，目前来说cm是稀有物品，只是没想到弄来了一台比cm更稀有的工程机。。。 本帖最后由 critor 于 2020-3-7 06:26 编辑
@1172884664
Your CM is in development mode as reported by the little square in the top left-hand corner of the screen during the boot.
In this state it won't accept a production CM OS.
Try renaming the Developer Unit folder to something else.
This should switch your calculator back to production mode on the next boot.
You might need to remove the current OS manually through the maintenance menu to complete this.
It would be nice backuping and sharing your current CM OS before if you can; we never dumped a CM development OS so far.
fron.exe can be used for this :
https://www.cncalc.org/forum.php?mod=viewthread&tid=9262
critor 发表于 2020-3-7 06:21
@1172884664
Your CM is in development mode as reported by the little square in the top left-hand co ...
@critor
This way doesn't work. The backup fails when it reaches 50%.Is there any other way to backup？ 本帖最后由 1172884664 于 2020-3-7 09:16 编辑
critor 发表于 2020-3-7 06:21
@1172884664
Your CM is in development mode as reported by the little square in the top left-hand co ...
@critor
Do you have boot2 and diags for development version cm and cm cas? It's been a while I've used fron.exe.
You should just try again and see if the error still happens exactly at 50%.
If it does, the file transfer transfer may be complete, check the files on the computer.
If you've got access to a a normal TI-Nspire CM, you can send the development OS to it (it's going to fail at 50% anyway), but there is an Ndless tool to extract the temporary transferred OS file before the error happens.
You don't need to replace your Boot2 and Diags, they should go on working after switching back your calculator to production mode.
But it'll still be interesting to backup both of them, once we're done with the OS. @critor
Normal CM fails at 0%.
Development version ofcm failed at 0% or 50%.
This is "C:\" of the computer.There is no OS backup.
本帖最后由 critor 于 2020-3-11 06:31 编辑
Try this :
- install OS 3.1.0 and Ndless on your normal CM
- put the attached tempOS.tns Ndless program on your normal CM
- connect your development CM to your normal CM
- on your development CM, send the OS to your normal CM
The OS is now being written to your normal CM temp folder.
An error is going to occur at 50% of the progress bar, and the OS file will be erased immediately.
So you need to launch tempOS before the progress bar reaches 50%, but still as late as possible. Let's say when the progress bar reaches 49%. It'll copy the transferred OS file from the temp folder to you documents folder, and you'll then be able to transfer it to your computer. :) Did it work ?... critor 发表于 2020-3-14 18:55
Did it work ?...
I'm busy these days. I'll try when I have time.
critor 发表于 2020-3-14 18:55
Did it work ?...
@critor
I was confused by a discovery. It is CX on the calculator, and it is CM on the computer.Development CM display "Wrong handheld type" when I send OS to normal CM or CX.
Thanks for your reply. :)
According to the productID starting with 12, your prototype is a CM.
Is the receiving CM a normal calculator ?
If it's been modded to run a CX/CAS OS, you won't be able to send a CM OS to it. critor 发表于 2020-3-19 20:33
Thanks for your reply. :)
According to the productID starting with 12, your prototype is a CM.
Receiving CM is a normal CM ,and I send to a nlaunch cx.Both display"Wrong handheld type". Thanks. Unfortunately, Nlaunch is rejecting all OS transfers.
So if the receiving CM has been setup with Nlaunch, sending an OS to it won't work. critor 发表于 2020-3-20 01:08
Thanks. Unfortunately, Nlaunch is rejecting all OS transfers.
So if the receiving CM has been setup...
OK.I'll update to OS 3.1.0.392. 本帖最后由 1172884664 于 2020-4-24 18:42 编辑
critor 发表于 2020-3-20 01:08
Thanks. Unfortunately, Nlaunch is rejecting all OS transfers.
So if the receiving CM has been setup...
@critor
I got a CM DVT1.The OS version is 3.1.0.319. Do you want OS?
Yes, if you can. :)
Thanks.
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