Can't boot to recovery neither rom

I made a mistake while trying to flash an stock rom in my XT1644. While unlocking bootloader, I didn't realize I had to check the "allow OEM unlock" in developer options. When I thought unlocking had gone good, I started flashing manually a stock update, and everything failed. Now, I can't boot into recovery nor flash a recover nor unlock correctly bootloader, since "allow OEM unlock" still appears on screen. Tried using RSD Lite, but doesn't work. How can I unlock my device without checking the "allow OEM unlock" since I have no OS nor recovery?