I have at my house a P-0611C Nspire CX EZ-Spot with an identical failure. Per Reddit, reflowing the CPU ASIC can fix it, but I haven't been successful with this. I think it's some failure within the ASIC itself. Putting a good amount of padding between the ASIC and the housing in order to apply abou...

I'm putting results in this spreadsheet as they arrive. Converting Google Forms output of raw BZ80Test results into individual components is not an automated process, so you won't see your calculator appear in this spreadsheet immediately upon submitting. At the moment, the sheet is pretty barren. I...

Z80Test/BZ80Test Version 7 has been released! Version 7 improves the LCD busy delay test to give a more consistent result, and slightly reduces the amount of screen flickering. BZ80Test has been updated to clear the display after each screenful of information, making data entry into the Google Form...

🇫🇷 Francais / 🇺🇸 English With all the people unable, unwilling, or lacking the technical knowledge to open up their calculators and report what components are inside, I wrote Z80Test to poke around the insides and correlate both documented and undocumented behavior back to the hardware that produce...

Adriweb a écrit:a big [surprise]

The last known, undumped version, 3*, has been acquired and dumped.

It is nearly identical to 3., differing by two bytes other than the ROM version. Surprisingly, it does not exhibit the Plot( bug, whereas ROM 3. does!

I also blindly purchased a TI-82, serial 0510400 I-0593. We'll see what it has when it arrives (hopefully 3* :D ). Notably, the serial number is lower than the TI-82's with ROM 3.. Well, I just blindly purchased a bundle of 4 graphing calcs (2x TI-82, 1x TI-83, 1x TI-83 Plus) + a TI-BAII, all for a...

Great, congratulations ! :bj: Unlike the 1.0 TI-81, I hope the 1.0 TI-82 can be dumped the usual way this time. ;) Fortunately, the only thing we know about 1.0 is that the assembly loading exploit still works. It exhibits the same behavior as 3. when executing a shell: it loads machine code with i...

After over a year of market stagnation, I have found a TI-82 with ROM 1.0. It is expected to arrive here before 28 February 2017. Serial number 0500730 (!); date code I-0593. https://i.imgur.com/sYn0hZom.jpg https://i.imgur.com/8otpdMGm.jpg https://i.imgur.com/JPIbvXfm.jpg ROM 1.0 was speculated to ...

https://i.imgur.com/nvPibJIm.jpg One of the last 'B' TI-81s, I-0493B with 1.8K, using the new style housing! Not only does this prove housing style is not related to hardware revision, but it also shows the 6th variant display bezel came before 5th. https://i.imgur.com/EqKHf24.jpg Anyone know what ...

A few days ago, the TI-81 0600008 I-0690 arrived. To no surprise, it has ROM 1.0, and the hardware is very consistent with Joerg's ~0690 TI-81. 6282 6283 6284 Internally, it is virtually identical to the 0790 TI-81 in my collection; a Toshiba T6A49 ASIC and Sharp LH5164N RAM with an unknown ROM, lab...