39gs why so cheap

[ijabbott]

(04-22-2018 10:43 AM)ijabbott Wrote:  Is it possible to flash a HP 40gs ROM onto the 39gs and get a working CAS?

I think I just answered my own question by reading Mastering the hp 39gs & hp 40gs:

"Mastering the hp 39gs & hp 40gs" p. 8 Wrote:The previous models, the hp 39g & hp 40g shared a common chip and, although it was never intended to be possible, a hacker released a special aplet for the hp 39g which would ‘convert’ it into an hp 40g and activate the CAS. This is not the case with the hp 39gs & hp 40gs: the internal chips are different and there is no way to ‘convert’ one into the other using an aplet or program.