Do you need to change air bag module when replacing a deployed airbag?

SRS AIRBAG AIR BAG MODULE

"If you want to replace it, bad idea, that will be ALOT more costly. I had my original SRS module sent in for a reset. I just googled a company called www.myairbags.com and they reset mine for $55 and shipped it back to me free of charge, I hooked it up and it works like brand new! and I saved about $560.