Crossfire hybrid 2.0 Rear disc brakes Jammed

[mman]

Hi
Newbie here looking for some advice
I have a carera hybrid 2.0 and whilst on road the rear brake got jammed all of a sudden.They are so jammed that i cannot even press the brake level
Upon checking the rear calipers i am able to move it manually however i cannot press the lever .I have tried to loosen the hydraulic hose to no vail

Not sure where to start ?

Any resources or videos much appreciated

 

[BianchiVirgin]

Gently try and prise the pads away from the disks. Sounds like the pistons moved out, or one anyway, and didn't release and is jammed aganist the disk. Use a wide blade flat screwdriver or similar. You'll only need to move it a fraction to get the wheel spinng unless something else is seriously amiss as well.

 

[Ming the Merciless]

Whatever you do, do not go loosening hydraulic hoses.

 

[TimWinters]

I've looked at the spec for the current Crossfire 2. The specs say that you have cable brakes specifically Tektro M280 for the 2020 model. I'm guessing that there is a frayed cable, if not a bust up cable somewhere. I fixed a set of these brakes on a friend's Carrera Ebike. On both brakes the cables were fraying at the adjuster on the brake caliper. There was a small burr of metal on the end of the adjusters. This was a very dangerous fault. The burr was filed off, and he didn't have any more problems. I wonder if you have a similar problem.