Downgrade TI-83 Premium CE en 5.3.0 peu importe le Boot Code

→ **MyCalcs** profile · by **Hamza.S** » 28 Mar 2018, 12:42

Depuis quand TI donne des explications lorsqu'il décide de bloquer des choses ?

→ **MyCalcs** profile · by **edgar13** » 08 Jun 2019, 17:48

Ma calculatrice fait le programme mais l'OS reste version 5.3.5.0024!

→ **MyCalcs** profile · by **critor** » 08 Jun 2019, 17:51

Il faut envoyer l'OS juste après avoir effectué la modification.

→ **MyCalcs** profile · by **edgar13** » 09 Jun 2019, 12:37

Merci!!

→ **MyCalcs** profile · by **TheOrangeCat** » 22 Jul 2019, 13:22

Can you use the tool, for example, on BOOT code 5.3.6 on TI 83 Premium CE Python Edition? I'm planning on buying one (mainly because of faster flash).

→ **MyCalcs** profile · by **critor** » 22 Jul 2019, 13:24

The tool should work.
But OSes older than 5.3.6 compatibility is unknown.

→ **MyCalcs** profile · by **TheOrangeCat** » 22 Jul 2019, 13:32

Thanks! To test the compatability when I buy the calc, I will dump it's ROM and try it in CEmu.

→ **MyCalcs** profile · by **critor** » 22 Jul 2019, 13:55

Versions 5.3.6+ work in CEmu.

But this doesn't prove that older versions won't have problems on the TI-83 Premium CE Edition Python.

For example, installing versions older than 5.1.5 on TI-83 Premium CE (or TI-84 Plus CE) with Boot Code 5.1.5+ is a first step into bricking them.

→ **MyCalcs** profile · by **TheOrangeCat** » 23 Jul 2019, 09:20

It could brick it but won't reusing the tool fix it? I do remember that installing an OS too old does set it to a high value but can the tool be used again to to set it to a normal value? I mean, I don't need to use the exam mode and not that I will use the Asm84CEPrgm token so I will probably buy 83PCE Python Edition anyway.