[Galaxy Note 3 General] djibe89:
[GUIDE/TUTORIAL/HOWTO] Samsung Galaxy Note 3 Stock to Android 12.1

[GUIDE/TUTORIAL/HOWTO] Samsung Galaxy Note 3 (hlte*, h3gduoschn - Qualcomm SOC) Stock to Android 12.1 / LineageOS 19.1

This detailed step-by-step guide helps you transform your Samsung Galaxy Note 3 hlte to a powerful one with Android 12.1.

Make sure your phone is hlte before going further: in Android, go to Settings > General > About device > Check Model number is listed below.

If not, quit this tutorial.

Supported models:

- hlte: SM-N9005, SM-N900P

- hltechn: SM-N9008V

- hltetmo: SM-N900T, SM-N900V, SM-N900W8

- h3gduoschn: N9002

### READ THOSE WARNING COMMENTS

Read all my tutorials at: https://github.com/djibe/Android-tutorials

### Not working:

- Screen recording, it will slow down the complete system, reboot to fix

- Audio in a phone call with a bluetooth headset

CHANGELOG

v1. Initial release for Android 12.1, Netflix and Disney+ work

1) DOWNLOAD

- djibe Galaxy Note 3 pack: https://bit.ly/djibe-galaxynote3-pack

(contains Samsung tweaked Odin 3.13.1 + Samsung official USB drivers + TWRP 3.7.0_9-0 official recovery + Magisk Root + Magisk modules). Unzip files.

+ ROM Unofficial LineageOS 19.1: https://xdaforums.com/t/rom-unoffic...amsung-galaxy-note-3-hlte-h3gduoschn.4398351/

Download latest build for your device: https://androidfilehost.com/?w=files&flid=332448&sort_by=date&sort_dir=DESC

Or Official LineageoS 18.1 (Android 11): https://xdaforums.com/t/rom-official-11-lineageos-18-1-for-samsung-galaxy-note-3-hlte.4267527/

+ BiTGApps Package ARM 12.1 (OMNI or other): https://bitgapps.io/

OR MindTheGApps 12.1 ARM: http://downloads.codefi.re/jdcteam/javelinanddart/gapps

+ Charge phone to 100%

2) BACKUP DATA

Install Samsung USB drivers (you unzipped earlier).

Then plug phone to PC in File transfer mode.

Collect all .jpg or .mp4

Use Google built-in cloud to backup apps like SMS Backup & Restore to backup texts, contacts, etc.

Backup your WhatsApp messages in Google Drive.

Everything else: podcasts, Authenticators, TODOs etc...

Then copy the backup on your PC.

Make sure you have latest official updates for your phone:

Connect to Wifi and go to to Settings > General > About device > Software updates > Update now.

### BACKUP NOW, you will lose everything.

3) FLASH TWRP 3.7 RECOVERY

Shut down phone.

Boot in Download Mode: hold Volume- + Home + Power button until Warning screen shows up and release all buttons.

Confirm access to Download mode by pressing Volume+.

Phone now displays "Downloading...".

Connect phone to computer with USB, wait for drivers installation.

Then launch Odin.exe (included in my zipfile) and wait for Odin indicator ID:COM to become blue.

In options: make sure re-partition and Auto Reboot are NOT ticked while F. Reset Time is ticked.

In AP > select twrp-3.7.0_9-0-hlte.img.tar

### Same recovery for following variants: hltespr, hlteusc, hltetmo, hltevzw, hltecan

### For other Note 3 variants, get suitable TWRP here: https://twrp.me/samsung/samsunggalaxynote3qualcomm.html

Click Start.

Wait until flash Success message appears.

Unplug phone.

Restart phone to recovery :

- Hold Power until phone shutdowns

- Hold Power + Home + Volume+ until Samsung logo shows up and release all buttons to land in TWRP recovery.

### If Android launches, TWRP recovery will be wiped and replaced with stock recovery. Start again the TWRP flash process.

4) BACKUP IMEI PARTITION AND SYSTEM (Nandroid backup)

Recovery asks for Keep System Read Only ? > Swipe to Allow Modifications.

Back to home menu > Backup.

You can now select the partitions you want to save.

Select at least EFS partition to backup your IMEI. If a flash fails and partition is damaged you will still be able to restore this partition and use the phone.

If IMEI is lost during a flash, phone won't be able to reach cellphone networks.

I prefer to backup Modem, Boot, System and EFS. In case of problem, you will have your phone in its original state.

Swipe to Backup and wait during process.

Save backup: still under TWRP recovery, connect phone to PC.

Go to Mount menu and check Data partition is checked and MTB button is on "Disable MTP" state.

From Windows explorer, access phones memory and copy-paste the TWRP folder (located in root folder, beside DCIM and Music folders) somewhere safe on your computer.

5) FORMAT PARTITIONS

### Make sure you copied TWRP backup from internal memory to somewhere safe.

Go to Wipe > Advanced wipe,

select Dalvik, System, Data, Internal Storage (if you really made a backup from step 2), Cache and Swipe to Wipe.

Go to Wipe > Format Data.

type yes and confirm with bottom right Check icon.

Back to TWRP home screen, go to Reboot > Recovery and swipe to reboot.

On next launch, check the checkbox to remember choice and swipe to allow modifications.

6) FLASH ROM, (MAGISK ROOT) AND GAPPS

Back to TWRP main menu, go to Mount menu again to connect phone to PC again.

Connect phone to PC and use Windows explorer to copy files on phone's internal memory.

Copy TWRP folder from your phone to somewhere safe on PC.

This backup can restore your phone to its original Samsung state.

Copy files of ROM + GApps + Magisk on phone.

Go back to TWRP Home menu. Then tap on Install > choose lineage*.zip

then Swipe to confirm Flash.

Wait for operation to end.

Again, go to Reboot > Recovery.

After restart, go back to Install and select bitgapps*.zip

Optional for root: Add More zips > Magisk*.zip

then Swipe to confirm Flash.

Then tap Wipe cache/dalvik, swipe to confirm,

and Reboot System.

Wait for the phone to boot during 3 minutes.

7) ROOT ACCESS (OPTIONAL)

### Needed to work with Netflix or Disney+

Don't connect to your Google Account.

Wait a few minutes for Google Services to update.

No need for extra work to be root.

Magisk launches with Android.

Superuser permissions can be managed from Magisk Manager app.

Launch Magisk.

Then in Magisk go to Settings > Hide the Magisk app, give it a name and switch Zygisk option ON.

Go to Modules Tab > Install from Storage: install MagiskHidePropsConfig and safetynet (located in my archive).

Unlock Developer options: go to Settings > About.

At the bottom, tap 7 times on Build number.

Go to Settings > System > Advanced > Developer options > Disable Android debugging (ADB).

Reboot phone.

8) TWEAKS

- Faster system

Go to Settings > System > Advanced > Developer options.

Set Window animation scale, Transition and Animator to .5x

- Calibrate battery: https://www.ifixit.com/Wiki/Battery_Calibration

- Set dark Mode to improve battery by 30%

Settings > Display > Dark theme.

- For better battery, remove Always on display

Settings > Display > Screen saver > Desactivated

- Screen sensitivity is too low ?

Try to recalibrate screen sensitivity with https://play.google.com/store/apps/details?id=touchcalibration.favoritappindia&hl=en&gl=US

Enjoy,

djibe

Thanks: @html6405, LineageOS team, BitGapps Team, TWRP team, TopJohnWu