Hi Carlos,
Your radio has an MCU Version that CHIRP does not know about. I have a patch ready to submit, but I would like you to test it before I do. Below are the instructions for how to load the attached test driver module for testing.
1 save the test driver module to a convenient location
Note: Do not right click the link to download. Left click the link and choose the "download" link on the page that loads.
2 click "Help" in the menu bar and enable "Enable Developer Functions"
3 click "File" in the menu bar
4 click "Load Module" in the list that appeared and then locate and load the test driver that was saved in step 1
CHIRP will now have a red background. Test to see if you can download from and upload to your radio.
Note: This test driver module does not permanently change your CHIRP installation in any way. If you close CHIRP, you must load this test driver again before you can program your radio.
Let me know the results. If successful, I will submit the patch.
Jim KC9HI