Deleting multiple text messages

[Ruikee]

I have a text thread of 15k messages, i have backed them up and now want to delete them. I tried using SMS Backup and restore, clear all function, and it freezes my phone after a while. It used to work really good with my S5. Anyone know any other way besides a factory reset to clear them all out, dont care about any other texts as i have them all backed up.

 

[B. Diddy]

What if you go to the App Manager, select Messaging, and Clear Cache/Clear Data?

 

[Ruikee]

hmmmmm cleared all except pics, used SMS Backup and restore and it finished it up.....not ideal but it worked.......Thanks...