[Dec. 30, 2017] Link updated.
The T-mobile LG G Stylo H631 received a new software date which brings the device’s software version to H63120o.
The LG G Stylo H631 Stock kdz firmware build H63120o is also available for download from LG server. If you want to install the update with LG UP, or unbrick/restore your LG G Stylo H631 PHONE with latest stock kdz firmware with LG UP, You can download the firmware from below link.
Download T-mobile LG G Stylo H631 Stock kdz firmware H63120k
Model: LG H631
Software version: H63120o
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TO unbrick/Restore LG H631 back to stock, You need to install: