Finally worked!
I'll report what happened, it might help somebody.
I uninstalled everything, erased all the directories and reinstalled again, so I rebooted the phone after downloading the new version with the bluetooth turned off. When I did this the directories appeared on my phone with files 0 and 1 inside, before it did not appear. So I replaced the file 1 with the translated version, I enabled the bluetooth and updated it, when it finished it was in English, finally!
Now ... next step, correct date and time
Thanks!