if just write another pm into phoine and u have original important value (308++)
restore back ur original PM
try retore ur original PM with another tool like jaf or mt or nss and post result
or look @ attached file
use nss with dku-2 cable, put phone in test mode
pm start adress 239 end 239 and write "block 239 pm1" then write
pm start adress 308 end 308 and write "block 308 pm1" then write
test phone now