Database Info

[GUIDE] Install custom ROM without computer

Hello everyone. I have come up with a lazy way to install custom ROM (such as Cyanogenmod) in *most* phone (I tried this on S3mini and Galaxy MEGA). Please note that this method moght not work on your phone and I am not responsible for bricking your phone.
Things you need:
-Your phone, fully charged
-Your precious time (About 30-60minutes)
-One click root app (I use Kingroot, download it with apk) (You may use other apps, of course)
-TWRP manager from playstore
-ZIP file of TWRP in latest version (V3?)
-ZIP file of the custom ROM matching the version of your device
-ZIP file of GApps matching the version of the custom ROM (Google for gapps and download it)
Steps:
1. Backup your personal information
Copy your personal information such as music, photo, documents out of your phone (e.g.: Cloud drive, USB, SD card). Safety first.
2. Root your phone
Download Kingroot and install the apk with package installer. Run the app and follow the instruction in the app to root.
3. Install TWRP manager
After rooting, install TWRP manager. In the app, install TWRP that match your device.
4. Create a backup for your phone
Boot your phone into recovery (Every phone have different method, so please google about this). In TWRP, press 'Backup' to create the backup.
5. Flash the latest version of TWRP
As the TWRP manager does not offer the latest version of TWRP, you have to flash the latest version by installing ZIP. The latest version of TWRP can install ROM with higher success rate.
To do this, press 'Install' in TWRP. Find the ZIP file of TWRP in latest version and install it.
6. Reboot your device to Recovery mode
7. Wipe your device
In TWRP, press 'Wipe'. Select Cache, Dalvik Cache, System and Data partition and wipe them.
8. Flash custom ROM
In TWRP, press 'Install'. Select the Custom ROM ZIP and install it.
9. Flash GApps
Most custom ROM does not have Google apps such as play stote, so you have to install it.
In TWRP, press 'Install'. Select the GApps ZIP and install it.
10. Wipe Cache and dalvik cache
In TWRP, press 'Wipe'. Select Cache and Dalvik Cache partition and wipe them.
11. Reboot your device
Now the ROM should be properly installed. First boot might take longer, so please wait patiently.
Shall you brick your phone, try to recover by using backup created in step 4.
PS: I am a newbie here and this is my first guide

While you have to wipe your device to flash the custom rom, it will wipe your data, including the actual Gapps and rom. This shows that your method won't work.

[Guide] Step by Step Installation of Android Pie Custom Roms

Step by Step Installation of/Upgrade to Android Pie Custom Roms
Following this guide, you will lose all your data if haven't backed it up yet!!
Also NO USING GSI PIE!!!
Requirements:
- Twrp is already installed.
What you need:
- LineageosTWRP (Attached to thread)
- Custom Rom (can be found here)
- Open Gapps (Pico or Nano)
Only if Root is wanted: Chose either of them
Magisk(Recommended) or SuperSU
- A brain and a body
- The Knowledge that you will wipe your phone by doing this. Be Warned.
Installation:
1. Backup all the files that you have either by copying them to a usb drive ,a micro SD or your computer.
2. Check that all files are copied successfully and can be opened or viewed.
( Some apps have a cloud synchonisation feature, use it if you have it as an option since it is really helpful!)
3. Now, get your preferred rom, gapps and if wanted, your root method ready, also unzip the twrp file aswell.
Copy them to your micro SD.
4. Boot into twrp via adb or by using some app(root needed).
In Twrp, go into wipe option, then select change file system. Change file System to ext4.
4.1 Now use Twrp Reboot-Menu Option to reboot into recovery(twrp) again.
4.2 Wipe system, data, cache and dalvik-cache partitions using the Wipe option
5. Go into Install Option and Press on "Install IMG" , select pietwrp image and flash it. (The name should be lineagerecovery.img or something if downloaded via telegram)
(If you don't have it yet and are in the Lenovo P2 Telegram group, type #pietwrp in chat and make sure to safe it to your download folder. Otherwise it's also attached to this thread.)
6. Reboot back to recovery like you did in step 4.1.
7. Now install your rom and gapps.
8. Wipe cache and then reboot .
9. Setup your phone and Enjoy.
( For Root, reboot to recovery. Flash your Root Method, wipe cache and reboot)
Enjoy and thank your Devs
FAQ
Q: Instructions unclear, phone stuck in bootloop
A: Either do this:
Download this folder and use one of the two ".bat" files. Boot into Bootloader via Volume Down and Power Button. --
It will flash S048 Firmware of our Lenovo P2, after the flash-process is finished it will boot up on its own. Recommended: Do all the ota updates via ota app.
Or: Boot into bootloader, via adb cmd prompt use: fastboot boot lineagerecovery.img , then use reboot menu to reboot into twrp. Clean Wipe phone(Wipe system,data, cache and dalvik-cache Partitions) and try flashing your Rom etc. again.
Q: Instructions unclear, hardbricked my phone!!
A: Thaat shouldn't have happened. Did you screw up somewhere?...
Luckily you backed up your most important files!

Rooting & LineageOS 16

Hi Folks,
I am not sure if you are aware, but there is a large list of GSI ROMs that will work on the One Max, including LineageOS 16 (Android 9)! Everything appears to work (not 100% about NFC) including the camera. Here is the complete list:
https://github.com/phhusson/treble_experimentations/wiki/Generic-System-Image-(GSI)-list
For some of these ROMs, you will need to install Gapps:
I recommend "pico"
https://opengapps.org/
Before you begin. DO A BACKUP FIRST!
The best method, after installing TWRP, and removing encryption is this:
1. Download/extract this LineageOS version:
https://sourceforge.net/projects/an...0-20190609-UNOFFICIAL-treble_arm64_avN.img.xz
2. Download ARM64/9.0 Gapps / https://opengapps.org/
3. Do a full Wipe.
4. Install the LineageOS image first. Pick Install Image > Pick LOS image > Select system partition
5. After image is done, go back to main menu in TWRP. Pick Install > Zip > Install Gapps.
6. Reboot, Setup Google Account, and restore your cloud backup.
7. Download latest Magisk app & Zip and install.
8. Refer to _cab13_ post. Towards the bottom on getting Magisk working with GSI Roms:
https://forum.xda-developers.com/android/development/umidigi-one-max-custom-rom-modding-t3942521
In TWRP, mount the /vendor and /system partitions to be able to copy files from one directory to another.
9. At this point, d'load a root checker app to verify prompts are working. You should now have rooted LOS16!

Encryption
After starting LOS and initial boot screen pops up w encryption, and says system UI keeps stopping.
Tries to encrypt the phone.
I formatted data and installed disable encryption zip after LOS image install
Any help appreciated

I am have twrp installed but twrp does not see xxxand...m64_avN.img.xz-file.
twrp accepts only zipfiles
So what can i am do, please?

Madricks18 said:
I am have twrp installed but twrp does not see xxxand...m64_avN.img.xz-file.
twrp accepts only zipfiles
So what can i am do, please?
Click to expand...
Click to collapse
You need the `unxz` tool, and all you have to do is `unxz <file.xz>` and it will unpack it.

GSI for the Galaxy A20 (Android 10)

What is GSI?
GSI stands for Generic System Image and will allow you to install an alternative ROM on your Galaxy A20?
No longer will we be restricted to the Samsung ROM.
These ones worked for me. If they don't work for you, go to the list of all GSIs. There are plenty to choose from. Select arm64 ab files.
Q GSIs
1. AOSP 10
https://github.com/phhusson/treble_experimentations/releases
2. Pixel Experience, EvolutionX & Havoc
https://forum.xda-developers.com/pr...iscussion/gsi-expressluke-built-gsis-t4003457
3. Crdroid
https://sourceforge.net/projects/amber-gsi/files/crDroid v6.1/crDroidAndroid-10.0-20200104--v6.1-arm64-ab-vanilla.img.xz/download
Custom Android 10 boot screens
https://forum.xda-developers.com/galaxy-a20/themes/a20-custom-splash-screen-android-10-gsi-t4019693
List of all GSIs
https://github.com/phhusson/treble_experimentations/wiki/Generic-System-Image-(GSI)-list
physwizz collection
A collection of guides, kernels and ROMs. Guides Complete Guide to the A20 GSIs for the A20 Quick Root and TWRP for the A20 Making my First Kernel for the A20 A20 Rooting Guide Making Your Own ROM Making Your Own Version of QwizzROM-a20...
forum.xda-developers.com

Before you Start
1. Make sure your phone is rooted
For A20: https://forum.xda-developers.com/galaxy-a20/how-to/root-samsung-galaxy-a20-rooting-guide-t3954872
For A30: https://forum.xda-developers.com/galaxy-a30/how-to/root-galaxy-a30-magisk-canary-relaese-t3936481
2. Install TWRP and remove data encryption.
For A20: https://forum.xda-developers.com/ga...p-samsung-galaxy-a20-custom-recovery-t3955271
For A30: https://forum.xda-developers.com/galaxy-a30/development/recovery-twrp-galaxy-a30-t3968085
Quick root and TWRP together for the A20: https://forum.xda-developers.com/galaxy-a20/how-to/guide-quick-root-twrp-galaxy-a20-t4069423
3. Backup only 3 parts: boot, data & system (not system image) onto external SD or usb-otg. If something goes wrong you should be able to restore the phone using TWRP.
4. Also use SMS Backup and Restore so you don't lose your messages or calls.
5. Make sure your Ext SD card is Fat32. I've noticed that GSIs don't recognise ExFat.
Android 10 (Q)
1. Installation
1. Begin with stock ROM
2. Reboot into TWRP ( then mount product - system - vendor)
Back boot data and system
3. Wipe both caches, data & system
4. Install GSI
5. Flash Magisk and physwizz GSI kernel from here https://forum.xda-developers.com/t/kernel-physwizz-kernel-for-the-galaxy-a20.4180107/
6. Reboot.
2. Installing GApps
Some GSIs come with GApps. If you're doesn't and you want to have GApps, then use this method.
a.-Resize system partition so you can install OpenGAPPS, go to wipe, advanced wipe, select system, select repair or change file system and select resize file system. If you get error 1 unmount and mount the system partition and try again
b. Install GApps
3. Fixing Navbar
As soon as you boot up. Run Magisk and install this module.
View attachment navbar-enabler.zip
4. Android 10 Backup
Backup Data only (EvolutionX and Havoc 3.0 will do boot/data/system backup and restore),
5. Android 10 Restore
1. Reinstall GSI (a - h above)
2. Restore Data
3. Install GApps (if needed)
Reboot
To Access larger SD cards
Unzip the file below
Use TWRP file manager to copy this file to
/system/system/bin
Tap on to file
Press chmod755
Reboot system
Android 11 (R)
wIP

Some interesting links.
https://forum.xda-developers.com/showpost.php?p=80177833&postcount=199
phhusson treble releases
https://github.com/phhusson/treble_experimentations/releases
GSIs for A50
https://forum.xda-developers.com/galaxy-a50/how-to/guide-guide-how-to-flash-gsi-t3934005/page1
AOSP GSIs
https://source.android.com/setup/build/gsi
GSI for the A70
https://forum.xda-developers.com/galaxy-a70/how-to/gsi-testing-thread-t3956230
List of all GSIs
https://github.com/phhusson/treble_experimentations/wiki/Generic-System-Image-(GSI)-list
Project Treble
https://forum.xda-developers.com/project-treble
Lolinet mirror
https://mirrors.lolinet.com/firmware/gsi/

Only this one for install? I Will Search another gsi

alexHdz said:
Only this one for install? I Will Search another gsi
Click to expand...
Click to collapse
It looks like this one comes with GApps and su built in.

physwizz said:
It looks like this one comes with GApps and su built in.
Click to expand...
Click to collapse
WiFi not working I guess

alexHdz said:
WiFi not working I guess
Click to expand...
Click to collapse
I thought that problem was only for Android 10

I tried to install GSI today but it didn't work.
Had to do a factory reset.

physwizz said:
Possible Installation Instructions (they will become more precise as more information becomes available)
1. Make sure your A20 is rooted (https://forum.xda-developers.com/showpost.php?p=80021195&postcount=4)
2. Backup with Titanium Backup
3. Install TWRP
https://forum.xda-developers.com/showpost.php?p=80028118&postcount=2
4. Backup system onto external SD or usb-otg (exclude data)
5. Install GSI from TWRP.
a. Download the desired GSI (it MUST be A/B_arm64 Variant)
-One GSI can be found here (https://forum.xda-developers.com/showpost.php?p=80177833&postcount=199)
b. unpack it if it wasn't in .IMG format
c. Go to TWRP , Install , Install IMAGE
d. Pick your GSI and select SYSTEM IMAGE
e. Reboot to TWRP Recovery
f. Flash "GSI_Fix_boot.zip"
View attachment 4815497
If you can't get TWRP you may need to install via Odin.
I'm not sure of any of this at the moment.
Click to expand...
Click to collapse
Hi guys! I try to install android 10 gsi, however when I go into twrp mode not recognizing the rom img what can it be?
I rooted and twrp A205G

physwizz said:
Possible Installation Instructions (they will become more precise as more information becomes available)
1. Make sure your A20 is rooted (https://forum.xda-developers.com/showpost.php?p=80021195&postcount=4)
2. Backup with Titanium Backup
3. Install TWRP
https://forum.xda-developers.com/showpost.php?p=80028118&postcount=2
4. Backup system onto external SD or usb-otg (exclude data)
5. Install GSI from TWRP.
a. Download the desired GSI (it MUST be A/B_arm64 Variant)
-One GSI can be found here (https://forum.xda-developers.com/showpost.php?p=80177833&postcount=199)
b. unpack it if it wasn't in .IMG format
c. Go to TWRP , Install , Install IMAGE
d. Pick your GSI and select SYSTEM IMAGE
e. Reboot to TWRP Recovery
f. Flash "GSI_Fix_boot.zip"
View attachment 4815497
If you can't get TWRP you may need to install via Odin.
I'm not sure of any of this at the moment.
Click to expand...
Click to collapse
i tried install any GSI on my A205F , but it's keeps bootloop , any suggestions to fix ?

hwp_2804 said:
i tried install any GSI on my A205F , but it's keeps bootloop , any suggestions to fix ?
Click to expand...
Click to collapse
I have the same problem on 205yn.
which method did you use to install twrp. there are some 205f users having trouble installing twrp

physwizz said:
I have the same problem on 205yn.
which method did you use to install twrp. there are some 205f users having trouble installing twrp
Click to expand...
Click to collapse
i use methods 1 and 2 , both also the same
twrp is working , but my internal storage seems like corrupted .

hwp_2804 said:
i use methods 1 and 2 , both also the same
twrp is working , but my internal storage seems like corrupted .
Click to expand...
Click to collapse
So method 1 have you the same result as method 2
Can you backup with either method?
Method 1
For the SM-A205YN
Download the A205YN custom recovery from here
https://forum.xda-developers.com/sho...&postcount=169
No need to patch it. Just flash it with Flashify.
If this first method works for a different version, please let me know.
Method 2
For the SM-A205G,
Download the composite recovery from here.
https://forum.xda-developers.com/sho...&postcount=198
Install to ap slot using Odin.

I haven't tested this yet so be wary. I'm going to try it today.
Format data (this is NOT the same as Wipe data) (In TWRP: Wipe -> Format Data)
Reboot back into recovery
Install GSI from TWRP. : Install , Install IMAGE
Pick your GSI and select SYSTEM IMAGE
Reboot to TWRP Recovery
Flash "GSI_Fix_boot.zip"View attachment GSI_Fix_boot.zip
Flash this zipView attachment Disable_Dm-Verity_ForceEncrypt_08.18.2019.zip
Reboot
That didn't work.
Reinstalling now ?

physwizz said:
I haven't tested this yet so be wary. I'm going to try it today.
Format data (this is NOT the same as Wipe data) (In TWRP: Wipe -> Format Data)
Reboot back into recovery
Install GSI from TWRP. : Install , Install IMAGE
Pick your GSI and select SYSTEM IMAGE
Reboot to TWRP Recovery
Flash "GSI_Fix_boot.zip"View attachment 4815771
Flash this zipView attachment 4815767
Reboot
That didn't work.
Reinstalling now
Click to expand...
Click to collapse
Try this:
Links donwload:
ROM: Android 10 GSI Treble (A-Only):
https:// enrt.eu/ FpMD
FixZygote V2 and Permissiver v5
https://androidfilehost.com/?w=files&flid=279429
Instalation:
1- Into TWRP mode
2- Wipe/ advanced wipe/ system. data and cache
3-Install/ select internal storage/ search rom image and install
4-Install/ FixZygote and Permissiver v5
5-reboot
PS: I haven't tested it yet on A205G as my twrp doesn't recognize any img rom!

Theus01 said:
Try this:
Links donwload:
ROM: Android 10 GSI Treble (A-Only):
https:// enrt.eu/ FpMD
FixZygote V2 and Permissiver v5
https://androidfilehost.com/?w=files&flid=279429
Instalation:
1- Into TWRP mode
2- Wipe/ advanced wipe/ system. data and cache
3-Install/ select internal storage/ search rom image and install
4-Install/ FixZygote and Permissiver v5
5-reboot
PS: I haven't tested it yet on A205G as my twrp doesn't recognize any img rom!
Click to expand...
Click to collapse
How did you install your TWRP?

physwizz said:
How did you install your TWRP?
Click to expand...
Click to collapse
I rooted for magisk and twrp used method 2 of the post!

Theus01 said:
I rooted for magisk and twrp used method 2 of the post!
Click to expand...
Click to collapse
I just changed method 2

physwizz said:
I just changed method 2
Click to expand...
Click to collapse
I did the twrp process again by the new method 2 but still the same error, the internal storage is having problems it does not appear the folders or files! and to install a GSI rom it must be the internal memory because the SD card does not work!

Theus01 said:
I did the twrp process again by the new method 2 but still the same error, the internal storage is having problems it does not appear the folders or files! and to install a GSI rom it must be the internal memory because the SD card does not work!
Click to expand...
Click to collapse
did you go to mount and mount everything

How To Guide GSI Installation Guide for Realme C2

Requirement:
Gsi Download arm64-ab or bvN (on some download page)
For ColorOs Base
Twrp COS
Gsi Flash files
Stockboot.img
For RealmeUi Base
Twrp RMUI
Gsi Flash files
Stockboot.img
Installation
1.Reboot to Twrp
2.Factory reset device from Wipe >> Slide>>>
3.Format data from Wipe >> Format data>> Type Yes
4.Flash RMC2decryption.zip
5.Go to Advance wipe & wipe
dalvik, data, cache, internal storage & system
Do Not Wipe Vendor partion
6. Goto install & select install image from bottom right
7. Flash stockboot.img as boot
8. Flash (gsi filename).img as system image
9.Flash vbmeta.img as vbmeta (Download as per base)
10.Flash Deletebootanimation.zip (Read Note First)
11.Flash keystore.zip
12.Format data from wipe bottom right
13.Flash permissiver.zip (skip for RMUI)
14.Reboot System
Note:
only some gsi boot with bootanimation if device bootloop from bootanimation flash deletebootanimation.zip
if deletebootanimation.zip doesnt work delete file manually
System/system/media or system/system/product/media
Optional
For Root flash Magisk 20.3
(in phh based gsi Normal magisk.zip doesn't works)
Rooting on Android 11
make sbin folder in /system & /system_root/system then flash magisk zip
For discussion join
https://t.me/RealmeC2Community
For Gsi Fix follow #gsifix
For Modified Bootanimation #gsibootanimation

realme c2 color os v9.
what will I press in the last step 'do not install twrp' or 'reboot system' only ??

GSI AOSP Android 10
I've tried to open the GSI list you provided.
And I got confused which one do I have to download/pick and which file.
Do you have any recommendations for Android 10 stock AOSP?
Thanks in advance.
Cheers. :fingers-crossed:

Rj clno said:
what will I press in the last step 'do not install twrp' or 'reboot system' only ??
Click to expand...
Click to collapse
always do not install twrp app
Shinnosuke Nohara said:
I've tried to open the GSI list you provided.
And I got confused which one do I have to download/pick and which file.
Do you have any recommendations for Android 10 stock AOSP?
Thanks in advance.
Cheers. :fingers-crossed:
Click to expand...
Click to collapse
arm64 a/b or arm64 bvn/bgn v=vanilla g=gapps

I’ve downloaded the arm64 a/b gapps and go. I’ll try it later. Then I will tell you if I find any bugs and then upload the logs. Where should I upload it?

I am using :
system-roar-arm64-ab-gapps.img from here
TWRP 3.5.0_9-1 SIDDK
ColorOS GSI
adb version Version 30.0.5-6877874
I can't make it run. It loops in opening screen RealmeME (white logo) not Yellow font..
I still can boot to fast-boot mode and call twrp recovery.
Somebody can help me?
many thanks in advance

hey i am using the stock color os 9 on my rmx1943 it similar to rmx1945 yiu think i could use the old stockboot file for it on sourceforge

i'm getting an error whenever i'm trying to flash keystore for rmui. what should i do @Siddk

patrickbusto081302 said:
i'm getting an error whenever i'm trying to flash keystore for rmui. what should i do @Siddk
Click to expand...
Click to collapse
everything fine with keystore make sure u using latest recovery & using A10 keystore

Ahh...booting into recovery even if i press system

@arksolitude is that because you are trying to install android 10 for realme c2? if yes...
1. download stockrecovery.img (or get the recovery.img from the zip file you've downloaded)
2. reboot to bootloader/fastboot
3. type in your computer "fastboot flash recovery (name of the file).img"
4. reboot (this will take you to stock recovery)
5. wipe data and reboot
this is from my experience but this should work