Upgrade Firmware

Update your t-mobile lg g3 D851 to android lollipop by flashing blisspop custom rom.T-mobile lg g3 is powered by a quad core snapdragon 801 processor clocked at 2.5ghz with 3 gb of ram along with 32 gb internal storage.It has a 5.5 inch quad hd display which is protected by corning gorilla glass 3 protection layer.There is a 13mp front shooter paired with a 2.1mp front cam which can record 1080p videos too.

It comes with android kitkat on board and international variant is upgraded to android lollipop 5.0.If you want latest version of android that is android 5.1.1 the you the only way is to go for a custom rom on lg g3.We are going to flash blisspop rom to upgrade it to android lollipop 5.1.1.

Since this is specific to t-mobile lg g3 variant make sure that you are flashing this on this variant only as flashing this on other variants of this device might result in brick.To check your device model number go to settings and then to about device.You will find your device model number and confirm it as D851.

Why to go for a custom rom on T-mobile lg G3 D851?

• Less bloatware: Usually Carrier variants comes with lot of bloatware and unwanted stuff.This might hinder performance a bit which might result in laggyness.Custom roms will have less bloatware or no bloatware at all as a result of which you will notice its performance is much better than on stock rom.
• Better performance: Though performance can be increased by controlling cpu and Gpu  with root apps you might not achieve what you want.There is better scope for performance on custom roms as developers implements different mods to make it perfect.
• Battery life: Battery life is always opposite to performance.Greater the performance least the battery life  you get.In order to get a balance one between them you have to go for custom roms. 
• Better customisation: Most of the apps with root access will work better on custom roms than on stock roms.For instance take xposed installer.It offers lot of modules for customisation but will work perfectly on custom roms than on stock one.

Install blisspop rom on T-mobile Lg g3 D851:

Prerequisites:

• Charge your t-mobile Lg g3 D851 to at least 80% .
• Backup all your apps and data on your device to external sdcard or computer as flashing blisspop rom will erase all the app data on your device including contacts.
• Enable usb debugging on your Lg g3 D851.Of course you don't need to do this for sure but enable it.
• Download blisspop rom and gapps if you need them.Transfer them to your device internal storage
• Backup Efs and modem partitions of your Lg g3..
• You must have Clockworkmod recovery installed on your phone.

Blisspop custom rom:

Blisspop custom rom is based on cyanogenmod 12.1 rom with lot of added features with improved performance and customisation.This rom offers all the features that cyanogenmod 12 has to offer and also there are lot of added features from other popular roms too.This rom offer wide range of features from status bar to lock screen.Bliss team officially supports t-mobile lg g3 D851 so you will have updates much quicker.

• Statusbar tweaks: Status bar tweaks include notification count,network speed indicator,double tap to sleep ,brightness control and weather in status bar header.
• Recents panel tweaks:The recent panel has a button to clear all the tasks and omni switch is present is present as an alternative to traditional recent menu.
• Gesture anywhere:Gesture any where is also available which  makes it easy for you to launch apps with gestures instead of returning to home screen and app drawer to launch apps.
• App circle:In addition to this app circle bar is also present which makes it too easy to launch apps with just a swipe from the edge of the screen.
• Soft Navigation controls:You can enable soft keys too if you like them and also set the dimension  of the navigation keys and also you can define custom actions.
• Capacitive buttons: hardware keys have an option to adjust back light duration of the button and now you you can do various things with the just home key like accessing a call with just a tap on home key , wake the device and also you can set custom action for double tapping on home key.
• Power button: Press and hold power button you will have various options including soft boot ,reboot recovery ,screen reorder,air plane mode,screen shot,user switch and lot more.
• Animation control: You can set custom animation for app opening and closing,scrolling up and down.There are lot of animations available to choose from.
• Display and light:This includes live display,adaptive display,rotation mods,wake device on plugging in charger or usb cable,Custom DPI and change font size according to your needs.
• Cyanogenmod Camera app is built in.
• Other mods include audio Fx equaliser,security options,bliss pop ota updates and all standard android features.

Flash using Twrp Recovery:

Update your At&t Lg g3 D850 to android lollipop by flashing Resurrecton remix custom rom . At&t variant of Lg G3 has a model number as "D850".It is powered by a snapdragon 801 processor with 3gb of ram along with 32gb internal storage.Primary camera on this device is 13mp while secondary camera is a 2.1mp sensor.It sports a 5.5 inch display with quad hd resolution which is protected by corning gorilla glass 3 layer.It houses a huge 3000 mah battery and also supports lte.

This custom rom which we are going to flash on lg g3 is specific to device with model number D850 which belongs to at&t.So if you don't have it just be away from this as flashing this on other model number might result in either boot loop or brick.To check your device model number go to settings and then to about device.You will find your device model number and confirm it as "D850".

Why to go for a custom rom on At&t lg G3?

• Less bloatware: Usually Carrier variants comes with lot of bloatware and unwanted stuff.This might hinder performance a bit which might result in laggyness.Custom roms will have less bloatware or no bloatware at all as a result of which you will notice its performance is much better than on stock rom.
• Better performance: Though performance can be increased by controlling cpu and Gpu  with root apps you might not achieve what you want.There is better scope for performance on custom roms as developers implements different mods to make it perfect.
• Battery life: Battery life is always opposite to performance.Greater the performance least the battery life  you get.In order to get a balance one between them you have to go for custom roms. 
• Better customisation: Most of the apps with root access will work better on custom roms than on stock roms.For instance take xposed installer.It offers lot of modules for customisation but will work perfectly on custom roms than on stock one.

Prerequisites:

About resurrection rom:

This Resurrection remix rom which your are about to AT&T LG G3  D850 is based on android 5.1.1 lollipop and is based on cyanogenmod,slim,omni and original remix roms.So you can all the best features of other roms are included in this rom along with performance and a decent battery life.

Features of this rom:

• Navigation bar tweaks: You can enable disable or navigation bar and also you can adjust the size of navigation bar.Navigation ring included toggles to in case of quick access just swipe from bottom of screen and you can access apps which you have set.
• Status bar tweaks: Status bar has lot of tweaks which include a brightness slider.Slide in status bar to adjust brightness of the screen.Various tweaks are available to carrier label too like color and switch.Quick and smart pull down are also present.Battery icon too has tweaks.
• Gesture anywhere: This basically lets to open any app at any time(while using other apps) with just a gesture.You have to set the gestures and use them.


• Recent panel mods: Stock recent panel do not have an option to clear all the apps at once.In this rom you a button to clear apps and can even set the position of the button.
• App circle Bar:Swiping from the left or right edges of the screen an app bar pops up and you can choose what app you want to launch.This is great way of multitasking.
• Lock screen mods: This includes placing of 5 shortcuts on lock screen and also set targets for the slider.
• Theme enigne: Theme engine is from the cyanogenmod custom rom which basically changes the look user interface from lock screen  to ring tones all the way up to boot animations.The speciality of the theme engine is the ability to choose individual elements of every theme you have installed.So you like the ring tones and wallpapers of one theme and icons of other theme then you can have them at a time.Just open the theme chooser and you will understand how to do it.

These are some of the features of the resurrection remix rom and you can explore more features by flashing this custom rom on  At&t LG G3.

Flash this custom rom using CWM recovery:

1. Download  resurrection remix rom D850 and Gapps transfer it to sdcard or internal storage of device.
2. Power of the device completely.
3. Press volume up ,volume down and power button simultaneously and once you see boot loader screen release buttons.
4. Using volume down as a navigation button move to recovery and click on Power button to confirm action and Device boots into CWM recovery.
5. Once you are in CWM recovery Create a nandroid Backup first.
6. Wipe data,cache and dalvik cache including system.
7. Flash rom and then gapps.
8. Reboot to system.

Though Sprint Lg g3 LS990 is not officially supported by cyanogenmod  you can still install latest version of Cm On your device.Lg g3 is one of the first smart phone to sport a quad hd display and is powered by a quad core snapdragon 801 processor clocked at 2.5ghz and is backed with 3gb of ram with 32gb internal storage and runs on android 4.4 kitkat. Primary camera on this device is a 13mp sensor while secondary camera is 2.1mp.

This custom rom which we are going to flash on lg g3 is specific to device with model number LS990 which is  sprint carrier variant.So if you don't have it just be away from this as flashing this on other model number might be a disaster for you.To check your device model number go to settings and then to about device.You will find your device model number and confirm it as LS990.

Why to go for a custom rom on Sprint lg G3?

• Less bloatware: Usually Carrier variants comes with lot of bloatware and unwanted stuff.This might hinder performance a bit which might result in laggyness.Custom roms will have less bloatware or no bloatware at all as a result of which you will notice its performance is much better than on stock rom.
• Better performance: Though performance can be increased by controlling cpu and Gpu  with root apps you might not achieve what you want.There is better scope for performance on custom roms as developers implements different mods to make it perfect.
• Battery life: Battery life is always opposite to performance.Greater the performance least the battery life  you get.In order to get a balance one between them you have to go for custom roms. 
• Better customization: Most of the apps with root access will work better on custom roms than on stock roms.For instance take xposed installer.It offers lot of modules for customization but will work perfectly on custom roms than on stock one.

Prerequisites:

Install cyanogenmod custom rom On Sprint LG g3 LS990:

By following above procedure you will have cyanogenmod rom installed on your Sprint lg g3 LS990.AS this is meant for this model only don't try this rom other variants.Since this rom is still in beta stage all features might not work properly.If you have any complaints regarding this let us know in comment section and also if you have any other queries comment here or you can contact us any any time.

After the success of lg g2 they have finally released another flagship which brings 2k display to smart phones.Lg g3 is one of the first smart phone to sport a quad hd display and is powered by a quad core snapdragon 801 processor clocked at 2.5ghz and is backed with 3 or 2 gb of ram depending on inter storage.It runs on android 4.4 kitkat and has been updated to lollipop.Primary camera on this device is a 13mp sensor while secondary camera is 2.1mp.

Though lg has updated it lollipop its not the latest version of android that you get right now.If you want to enjoy android 5.1.1 on your g3 you have to go for custom roms for sure.But the problem is, it is new to android development ecosystem and there are very less roms that are available for this device.There are only few roms which have official support and Lg g3 D855 is officially supported by cyanogenmod so you can have latest version of android at your door step.

This custom rom which we are going to flash on lg g3 is specific to device with model number D855 so if you don't have it just be away from this as flashing this on other model number might be a disaster for you.TO check your device model number go to settings and then to about device.You will find your device model number and confirm it as D855.

As flashing custom roms is a risky process we take no responsibility if you brick your g3.So proceed at your own risk.

Why to go for a custom rom on lg G3?

• Less bloatware: Usually stock rom are loaded with lot of bloatware and unwanted stuff.This might hinder performance a bit which might result in laggyness.Custom roms will have less bloatware or no bloatware at all as a result of which you will notice its performance is much better than on stock rom.
• Better performance: Though performance can be increased by controlling cpu and Gpu  with root apps you might not achieve what you want.There is better scope for performance on custom roms as developers implements different mods to make it perfect.
• Battery life: Battery life is always opposite to performance.Greater the performance least the battery life  you get.In order to get a balance one between them you have to go for custom roms. 
• Better customization; Most of the apps with root access will work better on custom roms than on stock roms.For instance take xposed installer.It offers lot of modules for customization but will work perfectly on custom roms than on stock one.

Prerequisites:

Install cyanogenmod custom rom cm 12.1 On LG g3 D855:

By following above procedure you will be able to Install android lollipop based Cyanogenmod 12.1 custom rom on Lg G3 D855.AS this is meant for this model only dont try this rom other variants.If you have any complaints regarding this guide let us know in comment section and also if you have any other queries comment here or you can contact us any any time.