He will probably file pro se and say his counsel was ineffective and it will be denied.
But he does have the option of direct appeal if he notified the court within 10 days of sentencing - again very small chance it would be granted.
When you say the following:
It really doesn't have anything to do with him thinking he had ineffective counsel - it more of a act of desperation to try and get some relief.
Several federal judges do overlook the, "I agree not to file any collateral attack...." as they view it as a unenforceable contract where there was coercion.
Something like take the plea deal for 2 years but when we go trial you will get 20 years...