NBC News: FBI can't open indicted Giuliani associate Lev Parnas' phones.
[1]https://www.nbcnews.com/politics/justice-department/fbi-can-t-open-indicted-g
iuliani-associate-lev-parnas-phones-n1250076

References

   1. https://www.nbcnews.com/politics/justice-department/fbi-can-t-open-indicted-giuliani-associate-lev-parnas-phones-n1250076