well i had the hash in there then removed it as i read it was not required currently. Just to make sure that was not the error. But i beleive if it was a hash issue i would get the error: download failed.
It downloads and starts to install, i know this because in the script there is a promt message and to confirm installation of file then i get the error: Error Main script execution failed!
Well, don't know too much about it, but .... ssh to the phone, su mobile, launch installer , and see what's the error .... in my case was ... a space between the <string> tags
see if that helps, the error for me said something like it's not an absolute path, it's cuz it's adding an /n at the beggining ...