Firmware+change+update+on+lg+p970+optimus+black Fixed -

The LG P970 Optimus Black is a legacy device, and performing a firmware update today generally requires using a KDZ flasher tool rather than standard over-the-air (OTA) updates

Early firmware versions on the P970 were known for a specific set of issues: firmware+change+update+on+lg+p970+optimus+black

Use this if your phone is stuck in a boot loop, has software bugs, or you want to return it to stock. The LG P970 Optimus Black is a legacy

For users who want a more modern experience, custom firmware like (now LineageOS) or IcySnap can provide newer Android versions and better speed. Prerequisites has software bugs