If your PS Vita is running custom firmware (CFW) like HENkaku:
Move PSVUPDAT.PUP into the UPDATE folder. ps vita system software update 374 download upd
Download and install the Content Manager Assistant on your computer. Connect your Vita to the PC via USB. If your PS Vita is running custom firmware
If your Wi-Fi is spotty, you can download the update via a computer: Connect your Vita to your PC via USB. Open the on your computer. ps vita system software update 374 download upd
Many users searching this exact keyword are facing issues. Here is how to resolve the most frequent problems.
: One significant downside is that transferring content between a PS3 and PS Vita is no longer supported due to these new security protocols. PlayStation How to Download and Update