Twrp Backup & Restoring - Samsung Galaxy A20 Questions & Answers

I have a A20 with the latest TWRP installed and stock rom configured with Magisk and its a good setup. I backup using TWRP. Choosing the default settings and the backup succeeds. However whenever I need to wipe the system out and restore from my backup, I keep on getting stuck on Samsung boot logo and never hits the home screen. Im sure I used the default options for creating the backup. so am I missing a step or a setting I need to do in order for my backup to boot up correctly?
This was checked Boot, Data (excl storage), Recovery, EFS, Modem & System

nofroyo said:
I have a A20 with the latest TWRP installed and stock rom configured with Magisk and its a good setup. I backup using TWRP. Choosing the default settings and the backup succeeds. However whenever I need to wipe the system out and restore from my backup, I keep on getting stuck on Samsung boot logo and never hits the home screen. Im sure I used the default options for creating the backup. so am I missing a step or a setting I need to do in order for my backup to boot up correctly?
This was checked Boot, Data (excl storage), Recovery, EFS, Modem & System
Click to expand...
Click to collapse
Boot data system

physwizz said:
Boot data system
Click to expand...
Click to collapse
Yea those are in there it just sticks at the samesung logo screen

nofroyo said:
Yea those are in there it just sticks at the samesung logo screen
Click to expand...
Click to collapse
https://forum.xda-developers.com/showpost.php?p=80028118&postcount=2
Just boot data and system (not system image) nothing else

Related

"image" backup

I want to experiment with flashing different ROMs and kernels, but I would like a quick and easy way of restoring my stock 4.1.2 ROM with all my settings/apps if I need to. I tried to do this with Titanium Backup, but after flashing back to stock I had to wipe data and cache and when I reinstalled Titanium backup there was no apps/settings.
Is there any way to make an "image" of my default environment which I can then flash from recovery?
Create a backup(nandroid)
You will need a custom recovery installed, doing this will give you a complete system image and restoring it will put your phone back to the exact state it was in when you made the backup
slaphead20 said:
Create a backup(nandroid)
You will need a custom recovery installed, doing this will give you a complete system image and restoring it will put your phone back to the exact state it was in when you made the backup
Click to expand...
Click to collapse
Thanks, I have made a backup using CWM Recovery. I also selected the "create image.zip" option - I assume that I can flash that .zip and be back to the current state after playing with some ROMs?
Vlad_M said:
Thanks, I have made a backup using CWM Recovery. I also selected the "create image.zip" option - I assume that I can flash that .zip and be back to the current state after playing with some ROMs?
Click to expand...
Click to collapse
Not sure about that option as I use quote an old recovery that doesn't have that option unfortunately, so can't help you there
slaphead20 said:
Not sure about that option as I use quote an old recovery that doesn't have that option unfortunately, so can't help you there
Click to expand...
Click to collapse
Ok, I made both backups (the normal .tar and the image.zip). One more question though - the last time I flashed the stock ROM (using Odin), I had to wipe data and cache because the phone got stuck in a boot loop. If I restore from backup and have to wipe data and cache again, won't this render the whole restore useless (i.e. I will go back to default state)?

Stuck on "Starting apps." on Quarx cm-10-20130527

After a battery empty, I restarted my Defy+. But now it got stuck on "Starting apps." at the end of the boot.
I have to wipe data to make my phone ending the boot.
If I restore data which I previously backup in recovery mode, I'm still stucked with "Starting apps."
How can I debug the settings or data that avoid that? I really want to restore my data.
ronpub said:
After a battery empty, I restarted my Defy+. But now it got stuck on "Starting apps." at the end of the boot.
I have to wipe data to make my phone ending the boot.
If I restore data which I previously backup in recovery mode, I'm still stucked with "Starting apps."
How can I debug the settings or data that avoid that? I really want to restore my data.
Click to expand...
Click to collapse
Are you using the new Teamwin recvoery to flash?
Ive had the same issue ( and many more besides that) for me, to fix the problem i did this:
Go back to recovery (Teamwin) and wipe everything
re-boot, go back to recovery (team win) and flash an older rom with clock work mod recovery, and let it boot.
re- start the phone and then go back to recovery ( clockwork mod) and flash the newer CM10 rom from clcokwork mod (First wipe everything /data/dalvik/cache/factory re-set)
2Pints said:
Are you using the new Teamwin recvoery to flash?
Ive had the same issue ( and many more besides that) for me, to fix the problem i did this:
Go back to recovery (Teamwin) and wipe everything
re-boot, go back to recovery (team win) and flash an older rom with clock work mod recovery, and let it boot.
re- start the phone and then go back to recovery ( clockwork mod) and flash the newer CM10 rom from clcokwork mod (First wipe everything /data/dalvik/cache/factory re-set)
Click to expand...
Click to collapse
Thanx,
Yes Teamwin delivered with cm-10-20130527.
What I done without success:
*Flash older ROM and restore more older data with CWM
*Push with adb unzipped
I should have flashed 10 to 20 times changing some steps each time. Each time I done wipe cache, dalvik and sometimes a data format and a wipe system.
I abandoned the idea to restore my data. Have to reenter all settings manually (find and enter account settings for CSip or some solooong preshared key for Vpncilla and so on).
Then what is positive: I format my data partition to ext4. I learnt a lot from very fragmented information for all those steps. I have a fresh new install.
ronpub said:
Thanx,
Yes Teamwin delivered with cm-10-20130527.
What I done without success:
*Flash older ROM and restore more older data with CWM
*Push with adb unzipped
I should have flashed 10 to 20 times changing some steps each time. Each time I done wipe cache, dalvik and sometimes a data format and a wipe system.
I abandoned the idea to restore my data. Have to reenter all settings manually (find and enter account settings for CSip or some solooong preshared key for Vpncilla and so on).
Then what is positive: I format my data partition to ext4. I learnt a lot from very fragmented information for all those steps. I have a fresh new install.
Click to expand...
Click to collapse
You can use Nandroid Manager to use ur data while the phone is booted, so install it, it will find ur backup, and the u can do a restore of ur apps, with data.
hackergnome said:
You can use Nandroid Manager to use ur data while the phone is booted, so install it, it will find ur backup, and the u can do a restore of ur apps, with data.
Click to expand...
Click to collapse
"Nandroid Manager currently supports nandroid backups created by TWRP and Clockworkmod (v5.xx and v6.xx) based recoveries! ".
Very nice app then. Thank you too late. I immediately install it.

TWRP sayd system not mounted, then rebooted during restore, phone is softbricked

I was bootloader unlocked, latest TWRP installed, systemless root with SuperSU 2.6, cataclysm rom, ex kernel, layers, xposed. I had made a ton of backups and even kept some of them backed up in another locations. I needed to restore a backup in TWRP. At first it wouldn't let me, kept saying that phone system was mounted as read only.
this is my question #1 - How do you mount system for read in TWRP? I see there's an option called "mount," I go in there, i see settings I can select, but I don't see any option to "execute" or "apply" settings (like TWRP has on other screens - swipe to backup, swipe to restore, etc). There's no "clicke here to mount option." what do you do here?
#2 - it finally mounted rw, i think, but after picking my latest backup, it started and then when it got to 19% it reboot the phone. Phone is softbricked.
#3 - I'm very confused about all the checkboxes to restore, and all the checkboxes to wipe.
What should I be wiping and what should I be restoring? When making backups I checked all the boxes.
I had the galaxy nexus before and I knew that phone and clockworck mod inside out. TWRP is confusing and glitchy to me. I'm stuck and work with a phone without an OS and I'm starting to freak out, and don't have A to C cables with me.
Please explain where I went wrong here and how to do things correctly. I want to understand what I'm doing better, not just follow steps.
When you restored, with all the check boxes did you click "system image" for restore?
You should wipe then restore only system, data, and boot.
dontbeweakvato said:
When you restored, with all the check boxes did you click "system image" for restore?
You should wipe then restore only system, data, and boot.
Click to expand...
Click to collapse
Yes, I selected all the boxes, including system image I believe.
I did a wipe. I selected all the boxes. Went back into TWRP and now all my backups are gone. I said reboot, and TWRP said there's no OS installed. I think I deleted everything. I should not have wiped. I do have a backup saved on a computer, it's a folder with lots of .img files inside. How can I get that onto my phone with only having fastboot and TWRP modes available? I mean how can I place it on the phone in a way that TWRP would recognize it and restore from it.
I ended up just flashing the stock google image and that at least gave me a working phone back.
Yes. You beat me to it, that's what I was going to say. You have to reflash. Just remember for future references you only need to backup boot, system, and data( and efs etc). But Not "system image" that'll Bork your stuff up.
dontbeweakvato said:
Yes. You beat me to it, that's what I was going to say. You have to reflash. Just remember for future references you only need to backup boot, system, and data( and efs etc). But Not "system image" that'll Bork your stuff up.
Click to expand...
Click to collapse
I'd like to really understand this better. Do you know why system image borks the phone? Also, when you say efs etc., do you mean "absolutely everything except system image"? (I actually didn't see EFS listed there)
Well boot system and data. But you also need efs cause thats your imei. So just look around and familiarize with what youve found so far. Right now Im trying to flash 6.0.1 with a systemless root. Its kinda goin ridiculous right now because there aren't any directions or suggestions.
If you get to "no OS installed" restoring system image, then system will get you back
Sent from my Nexus 6P using Tapatalk
zgroten said:
If you get to "no OS installed" restoring system image, then system will get you back
Sent from my Nexus 6P using Tapatalk
Click to expand...
Click to collapse
After it said no OS installed, I tried to restore system image from my TWRP backup, and the restore failed and the phone reboot itself at 19% restored. I had to ADB flash the factory system image from google. This brings me back to the original question.
Why was the restore in TWRP failing?
Did you mount system in TWRP before attempting to restore?
Sent from my Nexus 6P using Tapatalk
mistermojorizin said:
After it said no OS installed, I tried to restore system image from my TWRP backup, and the restore failed and the phone reboot itself at 19% restored. I had to ADB flash the factory system image from google. This brings me back to the original question.
Why was the restore in TWRP failing?
Click to expand...
Click to collapse
actually in twrp you could of wiped, then restored boot, system , data and it would of restored everything

Can't restore stock rom backup from TWRP (SM-G900F)

Hello,
before I played around with getting root and flashing custom roms, I backup everything in Samsung Smart Switch.
After getting root and install TWRP, I backup the whole system (except the recovery partition) to the external sd-card from TWRP.
Now - after getting some experience with custom roms - I will go back to the stock rom from my TWRP-Backup. Set everything to factory default, wipe cache and dalvik and press restore. Select my backup... swipe to flash... everything seems ok. After reboot - no bootloop - a thousands of alert-messages pops up "blabla-app stopped"... Then appears only a black screen.
How can i restore my backup from TWRP? Or is there a stock-rom, so i can backup from smart switch? My System is a LRX21T.G900FXXU1BOJ1
Thanks alot!
Try clearing the caches from recovery and boot again
If it fails, try wiping everything again, then restore all partitions except DATA
See if it boots
If it boots - either reinstall apps etc manually, or use TiBu to restore the DATA partition
I've got it!
I flashed a stock rom with odin and restore with smart switch. Some settings are missing, but i think 90% is restored
Nice job

Help with TWRP Restore !

I just got a s5. And I got it succesfully rooted and also got TWRP working on it.
All the data from my previous phone was transfered to the s5.
Now I made some backups with TWRP with the default settings: Partitions boot, system and data.
With the backups in mind I was thinking I could easily restore it to a previous state.
Thinking I backed up all the data and wanted to make it fresh again, I wanted to restore it.
In the menu I chose the restore option with the same settings as the backup: Partitions boot, system and data.
And it gives a message restoring system succesfull.
But when rebooting, it keeps hanging and at the moment of loading the android system every bit of the system keeps 'hanging'
It keeps saying
'Unfortunately touchwiz startup unsuccesfully'
'Unfortunately youtube startup unsuccesfully'
'Unfortunately greenify startup unsuccesfully'
'Unfortunately app whatever startup unsuccesfully'
And so on and so on
Eventually it starts with a black screen with nothing loaded. Complete blackout.
So this backup doesn't work. And I try my second backup.
Unfortunately also the second backup gave these errors.
And also the third backup!
So the backup files seem the right size, it's some gigabytes, and it alway's keeps saying backup/restore succesfully.
But now it fails to restore and boot the backup
The things I tried.
-Trying three different backups
-Wiping cleaning data/dalvik/cache etc etc
-Restoring a part of the backup. First system, then data, then boot, no succes.
So i'm totally lost! Does somebody know how to fix this? Or have some tips to try??
You can't restore system and boot from a different model phone
That would be like trying to flash a ROM for one model phone to another without porting it
If it was an S5 you backed up, was it the exact same model (ie: G900F etc?)
Flash back to stock, then try restoring only DATA
Or use TiBu to restore your apps from the TWRP backup
*Detection* said:
You can't restore system and boot from a different model phone
That would be like trying to flash a ROM for one model phone to another without porting it
If it was an S5 you backed up, was it the exact same model (ie: G900F etc?)
Flash back to stock, then try restoring only DATA
Or use TiBu to restore your apps from the TWRP backup
Click to expand...
Click to collapse
Thanks for the reply! It was a backup and restore on the same phone. So that is why I thought it was supposed to be a easy restore.
But I found the solution hidden somewhere in one message on XDA:
"Originally Posted by Dr. Fed
Would you happen to know why, when restoring a TW 4.4.2 nandroid using TWRP 2.8.1 or 2.8.4, after running an AOSP lollipop ROM like CM12, the TW ROM boots but then the whole system force-closes? Before restoring the nandroid, I advance wipe system, data, cache, and dalvik. Then I restore the nandroid. It boots, but then some daemon crashes. Then all processes and apps. The screen goes black after a few crashes.
So, what I do is pull out the battery, boot into recovery, advance wipe system, data, cache, dalvik, flash a CM11 ROM, reboot. I let CM11 start up, skip the set-up, then I boot back to TWRP (2.8.1 and now 2.8.4), advanced wipe, restore TW nandroid, and now it works just fine.
It seems like TWRP doesn't fully wipe."
Here the steps for if other people will run into the same problem:
Problem: Android 5 is running, with twrp 2.7 performed a back up = Restoring the backup is difficult because it problably doesn't do a clean wipe somehow.
1. I downloaded a cyanogen 11 rom, a Android 4 version.
2. Installed it with TWRP. Somehow it 'wipes' it more efficiently.
3. From cyanogen 11 back to booting TWRP.
4. In TWRP trying the Android 5 restore.
And Amazingly this worked!! = Celebrate!!
chokolademan said:
Thanks for the reply! It was a backup and restore on the same phone.
Click to expand...
Click to collapse
Confused me with this line
chokolademan said:
All the data from my previous phone was transfered to the s5.
Click to expand...
Click to collapse
Good to see you solved it

Categories

Resources