He/she can apply some documents from Canada consulate or embassy in China to get admission. It is called "travel documents for PR card expired". Check the immigration website. 3 o f# [# K6 Z1 ^( U$ O& Y2 P% S( _6 j6 }' v3 p6 I& V" R% [
By the way, how did he/she apply for the renew? In Canada or outside of Canada? Did he/she apply by themselves or from friend? Thank you.