V405UA20f: AT&T LG V40 ThinQ Firmware Update, August 2019 Security Patch

LG official is rolling out a new software update for the LG V40 ThinQ LM-V405UA (V405UA) on AT&T.

The Update is software version V405ua20f, and it includes the August 2019 Android Security Patch.

The Update is now available via OTA only.

After the Update, your LG V40 ThinQ’s current security patch level reads August 1, 2019!

AT&T LG V40 ThinQ Firmware Update: V405UA20f

  • Release date: August 21, 2019
  • Android version: 9.0
  • Security patch level (SPL): August 1, 2019
  • Build number: PKQ1.190202.001
  • Software version: V405UA20f
  • File size: 201MB

  • What’s changing: Security patch level

Just like many LG devices from AT&T, The LG V40 V405UA supports software update via OTA only!

LG and AT&T do not offer the stock firmware in KDZ format for the LG V40 from AT&T.

V405UA20f: AT&T LG V40 ThinQ Firmware Update