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 8...

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

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).