THE steel dead
my phone info:
Well, you can enter or force in the upgrade mode, if not, download the firmware that puts here Build number: STK-L21MDV 9.1.0.339(C185E3R2P1) or Base version: STK-LGRP3-OVS 9.1.0.339 which is the same but full, in which you get update. app, the cust and the preloader, once you have the firmware and flash in usb 1.0, as you know you don't need to do test point with the firmware the sigma software does the procedure by itself. Or the software board in this same post is posted by me if you read a little, thank you very much.