You are hitting the bug CSCse17132. The work around is,
manually run following SQL query :
For 7961 :
update productsupportsfeature set Param = '/PhoneOnlineGuide/7961/ip7961.pdf' where tkmodel = '30018' and tksupportsfeature = '40';
For 7941:
update productsupportsfeature set Param = '/PhoneOnlineGuide/7941/ip7961.pdf' where tkmodel = '115' and tksupportsfeature = '40';