some times when you can not bleed the brakes it is because the proportional valve has been activated and wont allow a part of the brake system to be properly bled. so follow along to get help with this issue
here is a link to a bleed tool.
https://amzn.to/345prZT
💎To drain most standard and ABS brake systems-- To fit most vehicle brake bleeder fittings and worked with most standard and ABS brake systems.
💎Wide Applications-- Comes with 3.93 inch long silicon brake bleeding hose with universal rubber adapter which can fit most brake nipples. The Bleeding Kit Fits Most Hydraulic Brake System.
💎Easy Operation and Lightly--Midget size of the net weight is less than 1 kilogram for easy operation. With hand-free operation and step hook to control air conveniently. Requires only one person to complete.
💎Collects Dirty Brake Fluid without Spillage-- Dirty fluid is well collected in the bleeder, ensuring safe extraction. With integrated silencer to make a messy job cleaner, quicker and quieter.
💎Efficiently to Bleeding Work-- To bleed and flush hydraulic brakes and clutches with vacuum efficiently.