how to flash any custom ROM for your device. - Samsung Galaxy A20 Guides, News, & Discussion

Hi there
NOTE: please follow this steps one by one.
Disclaimer: i am not responsible if your device got bricked, i use this method for my samsung galaxy A20e and it works.​
well when i wanted to flash a custom rom for the first time, i didn't find any steps to follow, i just picked out the rom then flash it via twrp and rebooted and that was a big mistake, the rom booted but i wasn't able to do anything, so today you will see the right way to flash .
First of all, you need to have twrp installed.
then download the rom version that you want for example, i used this rom for my device: https://sourceforge.net/projects/derpfest/files/a20e/
next put the file that you have downloaded in an sdcard.
then reboot to recovery, you can do it by powering off your phone then hold the volume up and power keys until you see twrp's logo.
click wipe option, the advanced, after that check all the partitions there except sdcard and usb-otg (and vendor if it is not included), for my device i wiped system, vendor, data, cache, dalvik and cache, but it may be different for you, now swipe to the right to confirm wiping.
when the wiping process has been finished, exit advanced wipe and choose format data, you will be asked if you are sure, type yes.
go back to the main twrp window, then select flash, click select storage and choose sdcard(or usb-otg if you are using it), then you will see the zip file and install it.
reboot and that's it !! it is depending on your phone's speed now, just be patience.
enjoy your time in that rom, cause you will change it soon *__*.

Related

[Q] Stuck At Boot Loader

I updated the CWM to 6.x and tried to install KitKat 4.4.4 on my P500 and now, it stuck at bootloaded. Tried different ROMs but still stuck at bootloader.
I am able to open CWM recovery, install zip even can mount USB or /system and run adb shell. Able to connect it in emergency mode (PC detects it), but KDZ does not recognize the phone.
I tried the LG support tool, that told me that the software is already up-to-date. When I try to update recovery, it stuck at 11% and says there is some issue in PC communication.
Can this be an issue of baseband? I am not sure what to try next.
***Have removed the sd-card also to see if that helps.
*** also tried on different machines with xp, win 7, win 8.
Can anyone help?
shubhz1987 said:
I updated the CWM to 6.x and tried to install KitKat 4.4.4 on my P500 and now, it stuck at bootloaded. Tried different ROMs but still stuck at bootloader.
I am able to open CWM recovery, install zip even can mount USB or /system and run adb shell. Able to connect it in emergency mode (PC detects it), but KDZ does not recognize the phone.
I tried the LG support tool, that told me that the software is already up-to-date. When I try to update recovery, it stuck at 11% and says there is some issue in PC communication.
Can this be an issue of baseband? I am not sure what to try next.
***Have removed the sd-card also to see if that helps.
*** also tried on different machines with xp, win 7, win 8.
Can anyone help?
Click to expand...
Click to collapse
If you can boot to recovery then do the following:
1) Wipe dalvik-cache
2) Wipe cache
3) Format /system
4) Format /userdata or /data
5) Reinstall ROM
6) Reinstall GApps
7) Reboot
When upgrading or changing between major versions, ie; JellyBean to KitKat, it's highly recommended to format your system and userdata partitions.
Done This
shinobisoft said:
If you can boot to recovery then do the following:
1) Wipe dalvik-cache
2) Wipe cache
3) Format /system
4) Format /userdata or /data
5) Reinstall ROM
6) Reinstall GApps
7) Reboot
When upgrading or changing between major versions, ie; JellyBean to KitKat, it's highly recommended to format your system and userdata partitions.
Click to expand...
Click to collapse
Thanks shinobisoft, but I have done these in the same order.
help
shubhz1987 said:
Thanks shinobisoft, but I have done these in the same order.
Click to expand...
Click to collapse
Hello Guys...
Any help....
shubhz1987 said:
Hello Guys...
Any help....
Click to expand...
Click to collapse
you didn't say wich rom/thread etc, however
could you try this:
take this cwm the january's
take this rom the 7.1 version.
enter in recovery mode
flash the above cwm
flash the rom :fingers-crossed:
after that if you want to flash a kitkat, if it's an OS2SD or not use twrp 2.7.0.1 multi (bigsupersquid's & HardLight's twrp for p500)
this version have tls enabled
Now stuck at LG boot logo infinite loop
xdema said:
you didn't say wich rom/thread etc, however
could you try this:
take this cwm the january's
take this rom the 7.1 version.
enter in recovery mode
flash the above cwm
flash the rom :fingers-crossed:
after that if you want to flash a kitkat, if it's an OS2SD or not use twrp 2.7.0.1 multi (bigsupersquid's & HardLight's twrp for p500)
this version have tls enabled
Click to expand...
Click to collapse
I flashed both of these zips and now I am stuck at LG boot logo infinite loop. CWM is updated by the above zip.
shubhz1987 said:
I flashed both of these zips and now I am stuck at LG boot logo infinite loop. CWM is updated by the above zip.
Click to expand...
Click to collapse
Did you make the format /system /androidsecure /data etc..?
change the SD card, re-download the rom 7.1 & the twrp 2.7.0 multi, and retry (corrupted data/download problem?)
else go back to older cwm v5 and try older ics based rom.
i don't want to suggest to you to use LGMDP or KDZ because with that you can really break the phone. take that as last chances
i've a p500 for test, i've seen a lot of "black after LG logo", but everytime when i had possibility to enter the recovery, a new flash (recovery, rom or both) solved problems
To wipe clean 100% and install a new rom
Select “wipe data/factory reset
Select “yes”
Go to “mounts and storage”
Select “format /boot”
Select “yes”
Select “format /system”
Select “yes”
Back out of that menu to the main one again and select “advanced”
Select “Wipe Dalvik Cache”
Select “yes”
xdema said:
Did you make the format /system /androidsecure /data etc..?
change the SD card, re-download the rom 7.1 & the twrp 2.7.0 multi, and retry (corrupted data/download problem?)
else go back to older cwm v5 and try older ics based rom.
i don't want to suggest to you to use LGMDP or KDZ because with that you can really break the phone. take that as last chances
i've a p500 for test, i've seen a lot of "black after LG logo", but everytime when i had possibility to enter the recovery, a new flash (recovery, rom or both) solved problems
To wipe clean 100% and install a new rom
Select “wipe data/factory reset
Select “yes”
Go to “mounts and storage”
Select “format /boot”
Select “yes”
Select “format /system”
Select “yes”
Back out of that menu to the main one again and select “advanced”
Select “Wipe Dalvik Cache”
Select “yes”
Click to expand...
Click to collapse
It's also good to check the Md5 sums of the recovery and rom.zip, if Md5 sums don't match, you will have a corrupt download.

[NANDROID] Stock 5.0.2 (Lolipop) Android Galaxy Tab 10.1 T530NN

I am making available the Nandroid backup of the Samsung Galaxy Tab 4 10.1 T530NN. I searched the net and did not find this available in any format. I have tested this and it will work if installed properly. This Backup will probably work in other Recovery packages, but has only been tested in TWRP 3.0.0-0. You're welcome to re-install any Recovery you wish afterward.
Instructions:
1) Install TWRP 3.0.0-0 (Use the Matisse variant for the T530NN) and boot directly into Recovery.
2) Backup your current configuration. This process WILL wipe everything!
3) Using Android File Transfer or ADB, upload the folder from the expanded Stock_5.0.2_Nandroid_LRX22G.T530NNUEU1BOJ3.zip file to the folder /TWRP/Backup/<your device's serial number>/ of either the Internal Storage, or SD Card, whichever you did your Backup to in step 2..
4) Select Wipe to wipe the Data, Cache and Dalvik partitions.
5) Still in TWRP Recovery, select Restore to restore the Stock_5.0.2_Nandroid_LRX22G.T530NNUEU1BOJ3 package. This will overwrite Everything! You can probably get by with selecting only the System, but I saved everything to be sure to get a full reset to stock.
6) Reboot into Recovery again to allow TWRP to make adjustments to the System to keep it rooted.
7) Reboot into System. This will take you through the initial setup to activate your Gmail account and such.
8) Install SuperSU from the Play Store to complete the Rooting. If you'd rather render the tablet un-rooted, that option is in SuperSU's Settings.
I hope I posted this correctly. If not, I welcome admins to properly chastise me.

[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!

[Samsung S8+] Unable to bypass FRP

I would like to install TWRP and after that Lineage OS on my Samsung S8+ (Exynos). So i tried flashing TWRP with Odin (Dream2lte version 3.3.1.0). But i ran into a FRP lock so i googled and try to solve this, but so far i am unable to.
I have the password to my Google account, so i removed the Google account from the phone and removed the phone from my Google account. After factory reset i am still getting an error FRP lock when flashing.
Shouldn't the FRP lock be gone after removing google account and doing a factory reset? I have tried a couple of YT Howto's but they don't seem to work.
How do i remove the FRP lock so that i am able to install TWRP and Lineage OS?
Like i said i know the password to my Google account and i 100% own the phone
(Bypass probably isn't the correct word, i am simply trying to turn it off )
Got exactly the same problem, hence like you, ended up here for help.
Well i fixed my problem (Disable USB debug and OEM unlock, couple of reboots and enabled them and it worked). But after that i broke my phone
I am stuck at the screen saying: An error has occurred while updating the device software. Use the Emergency recovery function in the Smart Switch PC software.
I know this is meant to scare me (is kinda working...), but i also know that Odin is still working. So as far as i know i have to flash the original firmware now to fix this. But i keep getting the error: Invalid magic string. When i try to also flash a BL file i get the error: ""Secure CHECK FAIL: (BOOTLOADER)" The option Re-Partition in Odin is switched OFF, as far as i know this is okee... right?
I have tried 3 different versions (Android 9/8/7):
https://www.sammobile.com/samsung/galaxy-s8/firmware/SM-G950F/TNL/download/G950FXXU1AQC9/128974/
https://www.sammobile.com/samsung/galaxy-s8/firmware/SM-G950F/TNL/download/G950FXXU4DSBA/259612/
https://www.sammobile.com/samsung/galaxy-s8/firmware/SM-G950F/TNL/download/G950FXXS4CSA4/256485/
This zip files contain a BL/AP/CP/CSC file, i have tried them all at the same time in Odin as well as the AP and BL files seperate. (from one zip file, NOT different version files together of course)
I tried using Smart Switch 4.1 to do the emergency procedure using model nummer SM-G955F with my serial number but before it does anything it tells me this is not possible with an SM-G955F.
They all give me the same result.
Does anybody know how to fix this?
TheGeneral said:
Well i fixed my problem (Disable USB debug and OEM unlock, couple of reboots and enabled them and it worked). But after that i broke my phone
I am stuck at the screen saying: An error has occurred while updating the device software. Use the Emergency recovery function in the Smart Switch PC software.
I know this is meant to scare me (is kinda working...), but i also know that Odin is still working. So as far as i know i have to flash the original firmware now to fix this. But i keep getting the error: Invalid magic string. When i try to also flash a BL file i get the error: ""Secure CHECK FAIL: (BOOTLOADER)" The option Re-Partition in Odin is switched OFF, as far as i know this is okee... right?
I have tried 3 different versions (Android 9/8/7):
https://www.sammobile.com/samsung/galaxy-s8/firmware/SM-G950F/TNL/download/G950FXXU1AQC9/128974/
https://www.sammobile.com/samsung/galaxy-s8/firmware/SM-G950F/TNL/download/G950FXXU4DSBA/259612/
https://www.sammobile.com/samsung/galaxy-s8/firmware/SM-G950F/TNL/download/G950FXXS4CSA4/256485/
This zip files contain a BL/AP/CP/CSC file, i have tried them all at the same time in Odin as well as the AP and BL files seperate. (from one zip file, NOT different version files together of course)
I tried using Smart Switch 4.1 to do the emergency procedure using model nummer SM-G955F with my serial number but before it does anything it tells me this is not possible with an SM-G955F.
They all give me the same result.
Does anybody know how to fix this?
Click to expand...
Click to collapse
Secure check fail on bootloader is your flashing a older firmware than on the device. Look at the builds 5th from last digit. You need to flash that equal or greater than.
The error screen you see for emergency recovery is ok. It's like a modified version of download mode. Kind of. You can still flash Odin files from said screen. Ii see you've flashed a bit 1. And two bit 4 firmwares. So you must be on a 5 or greater. I don't know the exy bit number but like snapdragon is at or near 7 or 8. I can explain better if you need. But not an exynos expert
TheMadScientist said:
Secure check fail on bootloader is your flashing a older firmware than on the device. Look at the builds 5th from last digit. You need to flash that equal or greater than.
The error screen you see for emergency recovery is ok. It's like a modified version of download mode. Kind of. You can still flash Odin files from said screen. Ii see you've flashed a bit 1. And two bit 4 firmwares. So you must be on a 5 or greater. I don't know the exy bit number but like snapdragon is at or near 7 or 8. I can explain better if you need. But not an exynos expert
Click to expand...
Click to collapse
Thanks for your reply! I am in the normal "Downloading...." screen is there anywhere i can check which number i am at?
But i have just tried this one: G950FXXS7DTA6_G950FOXM7DTA6_PHN and it is not working. But this is the newest one available on sammobile. Still the same bootloader error.
I have tried TWRP 3.3.1.0 and that worked, now i am in the TWRP menu but i don't have the LineageOS 17 + GoApps copied to the root. So i cannot install LineageOS now. What do i do now? My computer sees a SM-G955F but it is not showing any storage, if i can fix this i could copy the LineageOS files to the root...right?
TheGeneral said:
Thanks for your reply! I am in the normal "Downloading...." screen is there anywhere i can check which number i am at?
But i have just tried this one: G950FXXS7DTA6_G950FOXM7DTA6_PHN and it is not working. But this is the newest one available on sammobile. Still the same bootloader error.
I have tried TWRP 3.3.1.0 and that worked, now i am in the TWRP menu but i don't have the LineageOS 17 + GoApps copied to the root. So i cannot install LineageOS now. What do i do now? My computer sees a SM-G955F but it is not showing any storage, if i can fix this i could copy the LineageOS files to the root...right?
Click to expand...
Click to collapse
1. If you are on an S8+ flashing firmware for the S8 will cause you issues. Download firmware for the S8+ only. ie: 955f not 950f.
2. If you can't get into the system but can get into download mode there should be a line saying
AP SWREV: B:? K:? S:?
The B:? Is your bootloader version number. You will need to flash the same or higher.
3. How did you install TWRP?
If you don't have an SD card to store files on then after the Format Data stage you can then copy files from pc to phones internal storage.
spawnlives said:
1. If you are on an S8+ flashing firmware for the S8 will cause you issues. Download firmware for the S8+ only. ie: 955f not 950f.
2. If you can't get into the system but can get into download mode there should be a line saying
AP SWREV: B:? K:? S:?
The B:? Is your bootloader version number. You will need to flash the same or higher.
3. How did you install TWTP?
If you don't have an SD card to store files on then after the Format Data stage you can then copy files from pc to phones internal storage.
Click to expand...
Click to collapse
I am a bit embarrassed, it looks like i have been trying to flash the wrong ROMs last night 950 instead of 955, i am downloading the correct files now and wil try again. Sorry for this dumb mistake!
Just to be sure, i am trying to do this:
https://www.getdroidtips.com/lineage-os-17-samsung-galaxy-s8/
(I do know that this site says S8, but i picked the right files this time and thought the process would be the same)
But i first Flash TWRP with Odin, otherwise i cannot reach the TWRP recovery menu right?
But when i look bullet 5 (not number 5) it looks like i need to flash TWRP from within the TWRP menu. But that is not correct right?
I have placed these zip files on the phone:
lineage-17.1-20200211-UNOFFICIAL-dreamlte.zip
open_gapps-arm64-10.0-pico-20200303.zip
As a zip and unpacked, but when i am in the TWRP menu and i go to install, i cannot find the zip files. I placed them in the highest folder level possible. Why can't i find them now?
TheGeneral said:
I am a bit embarrassed, it looks like i have been trying to flash the wrong ROMs last night 950 instead of 955, i am downloading the correct files now and wil try again. Sorry for this dumb mistake!
Just to be sure, i am trying to do this:
https://www.getdroidtips.com/lineage-os-17-samsung-galaxy-s8/
(I do know that this site says S8, but i picked the right files this time and thought the process would be the same)
But i first Flash TWRP with Odin, otherwise i cannot reach the TWRP recovery menu right?
But when i look bullet 5 (not number 5) it looks like i need to flash TWRP from within the TWRP menu. But that is not correct right?
I have placed these zip files on the phone:
lineage-17.1-20200211-UNOFFICIAL-dreamlte.zip
open_gapps-arm64-10.0-pico-20200303.zip
As a zip and unpacked, but when i am in the TWRP menu and i go to install, i cannot find the zip files. I placed them in the highest folder level possible. Why can't i find them now?
Click to expand...
Click to collapse
I don't use custom roms yet.
Try searching for you device S8+ for installation instructions. Had a quick look the firmware is for S8 only not S8+. Need dream2lit for S8+
Try in separate stages instead of all at once.
I would sort out your stock firmware first get it up and running.
Then install TWRP. Install for S8+ from
http://twrp.me/Devices/Samsung/
They are many guides for this
https://forum.xda-developers.com/ga...pment/recovery-twrp-galaxy-s8-exynos-t3595102
If you need rmm bypass zip
https://forum.xda-developers.com/sa...w-to/guide-root-install-twrp-samsung-t3747535
Get that up and running properly.
Then you can install custom roms,root etc.
In regards to transferring files to phone they need to be a zip file ( .zip ) or an image ( .img ) files to flash in TWRP.
Maybe select internal storage then from menu select sdcard folder check if file is there.
spawnlives said:
I don't use custom roms yet.
Try searching for you device S8+ for installation instructions. Had a quick look the firmware is for S8 only not S8+. Need dream2lit for S8+
Try in separate stages instead of all at once.
I would sort out your stock firmware first get it up and running.
Then install TWRP. Install for S8+ from
http://twrp.me/Devices/Samsung/
They are many guides for this
https://forum.xda-developers.com/ga...pment/recovery-twrp-galaxy-s8-exynos-t3595102
If you need rmm bypass zip
https://forum.xda-developers.com/sa...w-to/guide-root-install-twrp-samsung-t3747535
Get that up and running properly.
Then you can install custom roms,root etc.
In regards to transferring files to phone they need to be a zip file ( .zip ) or an image ( .img ) files to flash in TWRP.
Maybe select internal storage then from menu select sdcard folder check if file is there.
Click to expand...
Click to collapse
I am using dream2lit.
I have the correct factory stock ROM (now), so i can always go back now. But i agree, my preparation wasn't good enough.
I will look at the links, but for now like i said my problem is that i cannot see my files in TWRP. But maybe that will be addressed in one of your links
With regards to your first link, i used the "Odin Method" so as far as i can tell i did this the right way(https://twrp.me/samsung/samsunggalaxys8plus.html):
Odin Install Method (No Root Required):
You will need to download and install Odin on your PC. Once you have Odin installed, download the proper .tar file for your device from the download link above. Power off your device. Turn on your device using the proper key combo to get into download mode and attach the device to your computer via a USB cable. Use the PDA tab or button to browse to and select the tar file that you downloaded and flash the device.
Note many devices will replace your custom recovery automatically during first boot. To prevent this, use Google to find the proper key combo to enter recovery. After typing fastboot reboot, hold the key combo and boot to TWRP. Once TWRP is booted, TWRP will patch the stock ROM to prevent the stock ROM from replacing TWRP. If you don't follow this step, you will have to repeat the install.
TheGeneral said:
I am using dream2lit.
I have the correct factory stock ROM (now), so i can always go back now. But i agree, my preparation wasn't good enough.
I will look at the links, but for now like i said my problem is that i cannot see my files in TWRP. But maybe that will be addressed in one of your links
With regards to your first link, i used the "Odin Method" so as far as i can tell i did this the right way(https://twrp.me/samsung/samsunggalaxys8plus.html):
Odin Install Method (No Root Required):
You will need to download and install Odin on your PC. Once you have Odin installed, download the proper .tar file for your device from the download link above. Power off your device. Turn on your device using the proper key combo to get into download mode and attach the device to your computer via a USB cable. Use the PDA tab or button to browse to and select the tar file that you downloaded and flash the device.
Note many devices will replace your custom recovery automatically during first boot. To prevent this, use Google to find the proper key combo to enter recovery. After typing fastboot reboot, hold the key combo and boot to TWRP. Once TWRP is booted, TWRP will patch the stock ROM to prevent the stock ROM from replacing TWRP. If you don't follow this step, you will have to repeat the install.
Click to expand...
Click to collapse
Note: Samsung don't have fastboot commands. Have to use button configurations to enter recovery or download modes.
What stage are you at?
It will give me a better idea to be able to help more.
spawnlives said:
Note: Samsung don't have fastboot commands. Have to use button configurations to enter recovery or download modes.
What stage are you at?
It will give me a better idea to be able to help more.
Click to expand...
Click to collapse
Well i installed Lineage OS 17.1 and Open Apps (lineage-17.1-20200211-UNOFFICIAL-dream2lte and open_gapps-arm64-10.0-pico-20200303) with an OTG plug and an USB stick. After installing i removed the USB Stick. But now i am having a new problem...
When the phone boots it asks: "To start Android, enter your password"
Which password is this? When i enter a password i often use it works but then:
"Decryption unsuccessful
The password you entered is correct, but unfortunately your data is corrupt. (Which is no problem)
To resume using your phone, you need to perform a factory reset. When you set up your phone after the reset, you'll have an opportunity to restore any data that was backed up to your Google account.
(Button) Erase ALL DATA"
Of course i erase the data. Look at the attachment to see what happens then.
I will not give up, will get Lineage OS on this phone, and after that on my Tablet S2 and maybe even on my primairy phone (S10+)
What should i do now? Many thanks for all the help so far, and for help finishing this proces
TheGeneral said:
Well i installed Lineage OS 17.1 and Open Apps (lineage-17.1-20200211-UNOFFICIAL-dream2lte and open_gapps-arm64-10.0-pico-20200303) with an OTG plug and an USB stick. After installing i removed the USB Stick. But now i am having a new problem...
When the phone boots it asks: "To start Android, enter your password"
Which password is this? When i enter a password i often use it works but then:
"Decryption unsuccessful
The password you entered is correct, but unfortunately your data is corrupt. (Which is no problem)
To resume using your phone, you need to perform a factory reset. When you set up your phone after the reset, you'll have an opportunity to restore any data that was backed up to your Google account.
(Button) Erase ALL DATA"
Of course i erase the data. Look at the attachment to see what happens then.
I will not give up, will get Lineage OS on this phone, and after that on my Tablet S2 and maybe even on my primairy phone (S10+)
What should i do now? Many thanks for all the help so far, and for help finishing this proces
Click to expand...
Click to collapse
Mounting data errors in twrp generally ( but not always ) means your device is encrypted/re-encrypted when booting into system. Twrp has issues with encrypted devices.
What version twrp are you using?
Have you flashed the no-verity-opt-encypt zip in twrp. This zip file will prevent device from re-encrypting when booting phone back into the system ( after the Format Data stage / reboot back into twrp)
https://build.nethunter.com/android-tools/no-verity-opt-encrypt/
What is your process of installing twrp?
If you have any passwords etc. installed delete them until after setting up you phone.
spawnlives said:
Mounting data errors in twrp generally ( but not always ) means your device is encrypted/re-encrypted when booting into system. Twrp has issues with encrypted devices.
What version twrp are you using?
Have you flashed the no-verity-opt-encypt zip in twrp. This zip file will prevent device from re-encrypting when booting phone back into the system ( after the Format Data stage / reboot back into twrp)
https://build.nethunter.com/android-tools/no-verity-opt-encrypt/
What is your process of installing twrp?
If you have any passwords etc. installed delete them until after setting up you phone.
Click to expand...
Click to collapse
I am using version twrp-3.3.1-1-dream2lte and no i have not flashed that no-verity-opt-encypt zip. I assume i should flash this one the same way flash the Lineage ROM right?
No passwords used on the phone.
My process:
i put the phone in download mode (POWER+BIXBY+VOL DOWN)
I use ODIN to flash twrp-3.3.1-1-dream2lte, and when the phone reboot i press POWER+BIXBY+VOL UP to enter TWRP menu,
Then i go to WIPE and Advanced Wipe and i select the data, system and davlik cache. Then swipe to wipe it.
Then i go to INSTALL and flash lineage-17.1-20200211-UNOFFICIAL-dream2lte and open_gapps-arm64-10.0-pico-20200303
TheGeneral said:
I am using version twrp-3.3.1-1-dream2lte and no i have not flashed that no-verity-opt-encypt zip. I assume i should flash this one the same way flash the Lineage ROM right?
No passwords used on the phone.
My process:
i put the phone in download mode (POWER+BIXBY+VOL DOWN)
I use ODIN to flash twrp-3.3.1-1-dream2lte, and when the phone reboot i press POWER+BIXBY+VOL UP to enter TWRP menu,
Then i go to WIPE and Advanced Wipe and i select the data, system and davlik cache. Then swipe to wipe it.
Then i go to INSTALL and flash lineage-17.1-20200211-UNOFFICIAL-dream2lte and open_gapps-arm64-10.0-pico-20200303
Click to expand...
Click to collapse
To install TWRP
1. Flash twrp with odin - reboot straight into twrp
2. In wipe menu select Format Data ( bottom right )
Type yes to format
3. Reboot back into twrp ( use twrp menu )
4. Flash no-verity-opt zip and if needed rmm bypass zip ( using install button in twrp ).
5. Reboot back into twrp then reboot to system using twrp menu.
6. From system reboot back into twrp.
To check if device is un-encrypted use backup menu - check data storage size ( If reading 0mb then device is still encrypted ).
Note: If all ok I would do a complete twrp backup at this stage ( keep backup on a separate storage device ).
Then you can install custom Rom's as per the installation guide of that Rom.
spawnlives said:
To install TWRP
1. Flash twrp with odin - reboot straight into twrp
2. In wipe menu select Format Data ( bottom right )
Type yes to format
3. Reboot back into twrp ( use twrp menu )
4. Flash no-verity-opt zip and if needed rmm bypass zip ( using install button in twrp ).
5. Reboot back into twrp then reboot to system using twrp menu.
6. From system reboot back into twrp.
To check if device is un-encrypted use backup menu - check data storage size ( If reading 0mb then device is still encrypted ).
Note: If all ok I would do a complete twrp backup at this stage ( keep backup on a separate storage device ).
Then you can install custom Rom's as per the installation guide of that Rom.
Click to expand...
Click to collapse
how do i make a complete TWRP backup? and what is rmm bypass and how do i know if it is neccessary to install this zip file?
TheGeneral said:
how do i make a complete TWRP backup? and what is rmm bypass and how do i know if it is neccessary to install this zip file?
Click to expand...
Click to collapse
In twrp main menu
Select backup menu - select ( all ) partitions - select storage location ( bottom left of screen ) - then swipe to backup.
Note:
1. If backing up to internal storage copy/move backup to an external storage ie: PC, sd card.etc.
2. Since you want a custom rom backup of the EFS partition is important.
Rmm state can be found in download mode. It will have a line ( near the top ) saying RMM state. It will either say prenormal or normal /disappeared.
It won't hurt to flash it just in case.
See OP in the thread I sent before:
https://forum.xda-developers.com/sa...w-to/guide-root-install-twrp-samsung-t3747535
spawnlives said:
To install TWRP
1. Flash twrp with odin - reboot straight into twrp
2. In wipe menu select Format Data ( bottom right )
Type yes to format
3. Reboot back into twrp ( use twrp menu )
4. Flash no-verity-opt zip and if needed rmm bypass zip ( using install button in twrp ).
5. Reboot back into twrp then reboot to system using twrp menu.
6. From system reboot back into twrp.
To check if device is un-encrypted use backup menu - check data storage size ( If reading 0mb then device is still encrypted ).
Note: If all ok I would do a complete twrp backup at this stage ( keep backup on a separate storage device ).
Then you can install custom Rom's as per the installation guide of that Rom.
Click to expand...
Click to collapse
I am really trying to do what you are saying...but when i try to "Format Data" (Step 2) it shows an error "Failed to mount '/preload' (Invalid argument). When i try to install no-verity-opt zip (step 4) at the end it shows the same error "Failed to mount '/preload' (Invalid argument). Which is probably because format data failed?
I am installing the zip from an USB stick with an USB-C to USB-A Converter. I don't think that could be the problem?
As Expected the "Data (excl. storage) is still showing 0MB.
TheGeneral said:
I am really trying to do what you are saying...but when i try to "Format Data" (Step 2) it shows an error "Failed to mount '/preload' (Invalid argument). When i try to install no-verity-opt zip (step 4) at the end it shows the same error "Failed to mount '/preload' (Invalid argument). Which is probably because format data failed?
I am installing the zip from an USB stick with an USB-C to USB-A Converter. I don't think that could be the problem?
As Expected the "Data (excl. storage) is still showing 0MB.
Click to expand...
Click to collapse
Failed to mount preload seems to affect some users.
You could try after the format data and reboot back into twrp ( using twrp 3.3.1.1 ):
Select wipe menu
Select advanced wipe
Select Preload
Swipe to wipe
Reboot back into twrp
Then try flashing no-verity/rmm zips files - reboot back into twrp.
Normally, for me , after this stage If i still get 0mb I will reboot into the Android system and then back into twrp. Then check in backup menu storage. If ok then try to flash custom rom.
spawnlives said:
Failed to mount preload seems to affect some users.
You could try after the format data and reboot back into twrp ( using twrp 3.3.1.1 ):
Select wipe menu
Select advanced wipe
Select Preload
Swipe to wipe
Reboot back into twrp
Then try flashing no-verity/rmm zips files - reboot back into twrp.
Normally, for me , after this stage If i still get 0mb I will reboot into the Android system and then back into twrp. Then check in backup menu storage. If ok then try to flash custom rom.
Click to expand...
Click to collapse
Yes Yes!! After doing the Preload i am able to flash no-verity/rmm zips file.
But Data is still showing 0MB.....
I thought why not give the lineage OS rom flashing another try. That worked, but now the phone seems to hang on a Lineage OS logo with a small circle moving around not straight line.
So i wiped everything again and flashed no-verity/rmm zip file, and will wait what for some advice and what do to next.
TheGeneral said:
Yes Yes!! After doing the Preload i am able to flash no-verity/rmm zips file.
But Data is still showing 0MB.....
I thought why not give the lineage OS rom flashing another try. That worked, but now the phone seems to hang on a Lineage OS logo with a small circle moving around not straight line.
So i wiped everything again and flashed no-verity/rmm zip file, and will wait what for some advice and what do to next.
Click to expand...
Click to collapse
Have you tried to reboot into system through twrp ie: reboot menu - system. Let it start normally, reboot into twrp, then check storage size. ( This is after the flashing of the no-verity/rmm zip and rebooting back into twrp ).
As I said I' m not familiar with custom ROMs. I do know that some custom ROMs do take some time to boot up on installation.
But out of curiosity I have a spare S8 and will give it a go.

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