RECOVERY TIPS if you get stuck on logo while updating to this wonky US998 Pie. < Please stop asking in Telegram thread or creating new XDA threads when it's right here. We will just direct you back here. OK?
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* Do NOT update to Pie yet if you wish to unlock bootloader in order to root.
For bootloader unlock purposes, use the US998 Oreo KDZ versions with no later than July 2018 security patch: 20a or 20b.
Look at the names for dates in the title in that thread link. AFTER you unlock bootloader, then you can update to newer firmware (like this Pie). Flashing a newer KDZ (like to Pie) will not re-lock your bootloader.
With unlocked bootloader, then on Pie KDZ you can install TWRP and root.
Stable TWRP 3.3.1 is recommended by our TWRP dev for Pie.
To install TWRP (or re-install TWRP on bootloader unlocked Pie) and root, PLEASE follow these instructions for success!
* If you've already updated to Pie with locked bootloader, see post #3 for instructions on how to downgrade to earlier Oreo firmware to first unlock bootloader. Or downgrade back to most recent Oreo because you decided you don't like Pie.
* If you have no desire to unlock bootloader or your bootloader is already unlocked, see full image KDZ and KDZ-based TWRP-flashable zips below.
* ALSO do NOT update to LG stock Pie yet if you wish to run LOS-16 "Pie" custom ROMs -- at least for now. See REASON HERE. Stock Pie update conflicts with LOS-16 Pie, even if you downgrade back to stock Oreo. After stock Pie update, your phone has been permanently changed/degraded when going back to Oreo for custom ROMs. Using Permissive kernel can overcome some of those issues, but you have been warned.
Whereas you do need to update to stock Pie first as a foundation before trying to install "Android 10" LOS-17 custom ROMs. However, those ROMs are still unfinished work in progress -- so if you don't like them and want to go back to the older stable LOS-16 "Pie" custom ROMs, then you've totally ignored the warning above. Again, stock Pie makes permanent changes.
NOTE: After installing Pie, if you get weird lag,
* try this fix. Just make a backup in LG Bridge. Nothing else. Somehow CREATING the backup (but not actually using it to restore anything) re-sets some stuff in Pie, so it acts like it should? I know it sounds strange but it works. Thanks to @thefpspower for the tip!
* OR If that doesn't work or you don't have access to PC, try this: go to Settings> Restart & Reset> Reset App Preferences. Thanks to @HoussiLAM for that tip. Both may do the exact same thing, I've not experimented to see.
____________
* Do NOT update to Pie yet if you wish to unlock bootloader in order to root.
For bootloader unlock purposes, use the US998 Oreo KDZ versions with no later than July 2018 security patch: 20a or 20b.
Look at the names for dates in the title in that thread link. AFTER you unlock bootloader, then you can update to newer firmware (like this Pie). Flashing a newer KDZ (like to Pie) will not re-lock your bootloader.
With unlocked bootloader, then on Pie KDZ you can install TWRP and root.
Stable TWRP 3.3.1 is recommended by our TWRP dev for Pie.
To install TWRP (or re-install TWRP on bootloader unlocked Pie) and root, PLEASE follow these instructions for success!
* If you've already updated to Pie with locked bootloader, see post #3 for instructions on how to downgrade to earlier Oreo firmware to first unlock bootloader. Or downgrade back to most recent Oreo because you decided you don't like Pie.
* If you have no desire to unlock bootloader or your bootloader is already unlocked, see full image KDZ and KDZ-based TWRP-flashable zips below.
* ALSO do NOT update to LG stock Pie yet if you wish to run LOS-16 "Pie" custom ROMs -- at least for now. See REASON HERE. Stock Pie update conflicts with LOS-16 Pie, even if you downgrade back to stock Oreo. After stock Pie update, your phone has been permanently changed/degraded when going back to Oreo for custom ROMs. Using Permissive kernel can overcome some of those issues, but you have been warned.
Whereas you do need to update to stock Pie first as a foundation before trying to install "Android 10" LOS-17 custom ROMs. However, those ROMs are still unfinished work in progress -- so if you don't like them and want to go back to the older stable LOS-16 "Pie" custom ROMs, then you've totally ignored the warning above. Again, stock Pie makes permanent changes.
NOTE: After installing Pie, if you get weird lag,
* try this fix. Just make a backup in LG Bridge. Nothing else. Somehow CREATING the backup (but not actually using it to restore anything) re-sets some stuff in Pie, so it acts like it should? I know it sounds strange but it works. Thanks to @thefpspower for the tip!
* OR If that doesn't work or you don't have access to PC, try this: go to Settings> Restart & Reset> Reset App Preferences. Thanks to @HoussiLAM for that tip. Both may do the exact same thing, I've not experimented to see.
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