Resolved. I bought a new SD card, but nothing to do, it always stopped at 25%. The problem was the router. I connected with my mobile phone (enabling WiFI router) and the update was successful. Thanks everyone for the advice.
Resolved. I bought a new SD card, but nothing to do, it always stopped at 25%. The problem was the router. I connected with my mobile phone (enabling WiFI router) and the update was successful. Thanks everyone for the advice.