Thanks for helping us with this case.
One thing I found very interesting is it appears that by definition what she did (if she helped dispose of the phone) was nothing short of
"Accessory after the Fact" and so I hope LE has that charge ready if she does not follow through with her committments to testify fully against PF.
The really interesting thing is I found this example for what a penalty would be for "Accessory after the Fact" if the crime was committed against the US and it shows that she could/should get up to 1/2 of the same penalty the original criminal gets. That sounds much more appealing right now.
"Except as otherwise expressly provided by any Act of Congress, an accessory after the fact shall be imprisoned not more than one-half the maximum term of imprisonment or (notwithstanding section 3571) fined not more than one-half the maximum fine prescribed for the punishment of the principal, or both"
18 U.S. Code § 3 - Accessory after the fact