KindleFire2 Backup Help - 7" Kindle Fire HD Q&A, Help & Troubleshooting

I need some help. The Standard Backup/Restore process seems to not work well on the Kindle Fire 2nd Generation.
I am asking if someone can try something new for me, (I have a bricked device)
Back up raw partitions from kindle responsible for recovery, boot and system and upload them.
**this requires root**
adb shell su -c "chmod 777 /dev/block/*"
adb pull /dev/block/mmcblk0p9
adb pull /dev/block/mmcblk0p10
adb pull /dev/block/mmcblk0p11
I am hoping this process of backing up the raw partitions will allow them to be flashed again in fastboot.
If I can prove this is a viable backup and get my device going again I am going to work on the applying the bootloader crack to the KF2.
Once we have the bootloader crack applied CM10 roms should be cominmg,
Thanks.

Related

[Q] Can't boot into recovery

Just flashed my NC to Cyanogenmod nightly 11, it boots fine into the ROM but for some reason none of the google apps are there. I installed them through the CWM recovery menu, as well as the nightly build and the OC'd kernal.
Everything went smooth except the gapps arent there. So I go into CWM and tell it to boot into recovery and it reboots to a black screen, have to hold down power to get it to reboot and it will reboot into Cyanogenmod just fine.
I couldnt get the SD card to boot, I'm thinking that its not formatted to the zero bit. Gonna have to research on how to do this as I only have Win7 available to me at the moment. Any ideas here? Do I need to go back to stock?
I have CWM 3.0.0.9, do I need to downgrade?
I just tried to manually downgrade the CWM but I still get the same problems =/
adb shell busybox mount / -o rw,remount
adb shell busybox mkdir /boot
adb shell busybox mount /dev/block/mmcblk0p1 /boot
adb push recovery-clockwork-3.0.0.8-encore.img /boot/uRecRam
adb push kernel /boot/uRecImg
adb shell busybox umount /boot
Any help would be appreciated, or if I'm just being a dumbass and can't search for crap let me know. Just want to get this fixed.
To continue my little thread with myself haha, I installed CWM 3.0.0.5 and now it works, so something must have happened with EXT4 and the boot sector. Just gotta work on getting my gapps.
Hope this helps someone...or at least makes you chuckle =p

CWM 3.0.1.0 issue and solution

make sure to read: http://forum.xda-developers.com/showthread.php?t=971197
the other day I realized that I did not have the OC kernel installed for CM7, so decided it was time to get that on there. I was unable to boot into recovery via ROM Manager or manually (using n+power). ROM manager was telling me 3.0.1.0 was installed, so I was a bit confused about why this was happening. I tried re-installing CWM via adb, that was a no go as well.
I then resorted to irc for help, people explained the proper way to use the key combo and then told me I was lying when I told them I didn't have the "touch the power of reading" splash
video of nook booting: http://www.youtube.com/watch?v=PGScwmoS7HU
so after a bit more poking and questions, found out the splash is within u-boot.bin, and somebody suggested I pull u-boot.bin from stock 1.1 image and push that to /boot.
Code:
1) download and unrar http://www.megaupload.com/?d=D7GFVHCQ
2) adb shell busybox mount / -o rw,remount
3) adb shell busybox mkdir /boot
4) adb shell busybox mv /boot/u-boot.bin /boot/u-book.bin-bak
5) adb push u-boot.bin /boot/u-boot.bin
6) adb shell busybox umount /boot
PROBLEM SOLVED. can boot into CWM after replacing u-boot.bin. I think this was related to attempting to format sdcard within CM7 on nook
So I have the same problem ... "Loading ..." screen and inability to boot into CWM after flashing with ROM Manager.
However your instructions are missing a step. You have the user creating the /boot directory with mkdir but not mounting /boot ... but at the end you have us umount /boot.
I sort of remembered this process from when I installed the HC pre-release, so I found my old bookmark. Following is your instructions with the missing step. Doing this made CWM load for me using power+N
Code:
# download and unrar http://www.megaupload.com/?d=D7GFVHCQ
adb shell busybox mount / -o rw,remount
adb shell busybox mkdir /boot
[i]adb shell mount /dev/block/mmcblk0p1 /boot[/i]
adb shell busybox mv /boot/u-boot.bin /boot/u-boot.bin-bak
adb push u-boot.bin /boot/u-boot.bin
adb shell busybox umount /boot
PS. I'm guessing this still isn't the RIGHT way to fix this issue, as I still can't get the reboot to recovery option working (I'm using CM7 nightly 39). However search function on the forums is offline, I'm very tired, and I'm about to go on a road trip early tomorrow so I'm not going to keep trying to fix it right now. If someone wants to post better info to get CWM 3.0.1.0 and ROM Manager working better for CM7 I'd love to see it. But I got my ALSA update installed so I'm happy for now
I've not been able to use Reboot into Recovery (from holding the power button) for a while now. However, the option from ROM Manager usually works, as does holding the n key while booting.

Kernel Panic - LG D175F BRA - Help

Please help me I was installing a custom rom cyanogen in LG D175F BRA and ended up catching him, then connecting the device after the logo of LG displays black screen Kernel Panic and not out of it, it does not come into download mode, or fastboot and the devices appears an unrecognized driver QHSUSB_BULK
If you have QHSUSB_BULK, you need a mmcblk0 backup at least till the end of the laf partition (first 166MB), which includes the partition table.
Ask for someone with the same model and rooted to run this command @ android terminal or adb:
su
dd if=/dev/block/mmcblk0 of=/sdcard/unbrick.img bs=1024 count=168960 (to save the file in the internal storage)
OR
dd if=/dev/block/mmcblk0 of=/storage/external_SD/unbrick.img bs=1024 count=168960 (to save the file in the microSD)
Then follow this tutorial using the unbrick.img you got from the command above: http://forum.xda-developers.com/lg-l90/help/bricked-d410-t3094018/post61741908
Actually there is a smarter way to recover from this kind of brick without any backup, it's just a matter of extracting the partitions of your kdz and flash them with an image writer. People from LG G2 forums have been doing this for months, they even have a dedicated tool for this: https://www.youtube.com/watch?v=ERZvlJIC9dE

Bootloop after installing Xposed framework

Hello,
I am hoping someone can assist with interpreting my log file or provide suggestions on how to convert my backups into a usable format that can be flashed back to the phone thus recovering it to a usable state. I have a logcat and dmesg in a text log file. I have put the file up on Google drive, the link is here-
https://drive.google.com/file/d/0B9e...ew?usp=sharing
I also spent time reading and studying the post about using logcat and dmesg posted here-
http://forum.xda-developers.com/showthread.php?t=2274119
I believe the last operation I tried before softbricking was installing the Xposed framework module for my device (running Lollipop 5.1.1).
I have tried one solution so far, go into recovery, clear cache and reboot.
To recover from this issue I think I have two basic options-
#1 restore from backup
#2 locate the problem that is causing the system to hang at startup in the first place
At the end of the day I am trying to find the simplest, quickest method to get back up and running. Both methods are acceptable to me. I am not worried about losing any data.
My phone is a BLU Studio C 5+5 LTE and therefore can't use TWRP or CWM (At least that is my assumption, maybe someone knows different). Before getting into the softbrick state I took 3 different types of backups in the hopes that one of them could be used in case it was needed. (like this)
Type 1 - I did an ADB shell backup from a completely stock device (unrooted). I used this command-
adb backup -apk -all -f fullbackup.adb
For this method I followed this guide here-
https://linuxiswonderful.wordpress.com/2015/04/04/full-backup-of-nonrooted-android/
Type 2 - I used Titanium backup and performed a complete system and application backup
Type 3 - I rooted the phone and backed up all partitions using dd after reviewing the partition layout of the device. For example, to backup the system partition I did the following at an ADB shell-
dd if=/dev/block/mmcblk0p21 of=/storage/sdcard1/firmware-img/system.img
I am able to still communicate to my device using ADB and I can get an ADB shell or enter fastboot mode.
My challenge/sticking point is how to turn my backups into a usable format to get me back on track or understand the boot process enough to get out of the boot loop. I am familiar with how Linux boots as I am a SysAdmin. I know Android is similar but just different enough to make me research this further.
The first thing I tried was mounting my raw image files created from the dd process. I followed this guide-
https://samindaw.wordpress.com/2012/03/21/mounting-a-file-as-a-file-system-in-linux/
I ran these commands-
#losetup /dev/loop0 /path/to/my/system.img
# mkfs -t ext3 -m 1 -v /dev/loop0
# mount -t ext3 /dev/loop0 /mnt
# cd /mnt
# ls
The various image files I created all seemed to mount "ok" OK meaning that the loopback mount process worked but it appears there is nothing but a lost+found folder in the mounted image. (I'm not sure why that is.)
I am still researching methods to turn my other backups into something usable for recovery purposes.
For using the adb backup file I created, this is what my understanding is-
Adb backup uses a type of compression (don’t remember what kind). I would need to uncompress the file first. After uncompressing and being able to view the file contents I would think I should be able to put together a flashable zip file of some sort.
I think the process for Titanium backup would generally be the same- uncompress/convert file format, create/assemble a flashable zip file
If there is any other info you need to see, please let me know. I made a lot of notes about the system architecture, partition layout, etc.
Many Thanks in Advance for your Advice!
Found my answer. Used ADB shell and mounted /system in RW mode. Changed /system/bin/dex2oat filename and the device booted normally. Issue solved!

[GUIDE] Upgrade 4.5.15 rooted & encrypted -> 5.0.2 WITHOUT DATA/SETTINGS LOSS

as usual, if anything goes wrong, no responsibility etc
The official update tutorial for rooted users doesn't keep app data, only internal storage! This tutorial keeps EVERYTHING
This method allows updating from 4.5.15 (unlocked, encrypted, rooted) to 5.0.2 without any data (sys settings + app data + user data) loss
A FAQ section is present at the end of this post and will be regularly updated.
List of files to download while doing the following steps:
OOS 5.0.2 ROM
Codeworkx TWRP recovery
Latest Magisk
Terms and software used in this guide:
Fastboot / Bootloader = bootloader of the phone, it's a very low level mode of the phone that allows booting into recovery. Can be accessed by using the advanced reboot menu (enable in dev options) or by "adb reboot fastboot".
Recovery = a small operating system on the phone that allows you to do various operations even when the main OS (Android) is broken. This includes flashing ROMs, modifying stuff on the storage, etc. It's the Android swiss army knife. If you can get a phone to boot TWRP, then you can do almost anything.
Magisk = rooting software that uses a systemless method to keep SafetyNet working. Systemless = instead of modifying the system, every change is put in a separate image that is mounted "over" the system. When the system tries to access a file modified by Magisk, instead of reading it from the partition, it reads it from Magisk. It's recommended to use Magisk instead of SuperSU as of 2018.
ADB = tool that allows controlling the phone from your PC through USB. You can use it when you're in Android if USB debugging is enabled in the settings, or when you're in TWRP. Here, we mostly use it for transferring files directly (without MTP) and running commands (using "adb shell")
Note: For this guide you will be required to download and install Magisk. If you don't want your phone to be rooted, then at the end of this guide reboot into TWRP, wipe both caches and re-flash the OS. This will uninstall Magisk and any other root patch. Beware: it will reflash stock recovery, so if you ever want to re-root, you'll need to reboot to fastboot and flash TWRP manually.
Convention for commands that you will have to run:
a command line starting with "C:" means that it should be run on your PC
a command line starting with "~ #" means that it should be run on your phone (through adb shell) while in TWRP
a command line starting with "OnePlus5:/ $" means that it should be run on your phone (through adb shell) while in OxygenOS
Although the commands start with "C:", this is just for readability purposes. You should run everything from inside an empty directory with enough disk space and writing access.
Your phone will have to be plugged in to your PC from the beginning to the end. Also, make sure it has at least 80% battery before beginning, just in case.
I know, the tutorial is huge. This is simply due to the fact that if I just wrote "make a nandroid backup of this and that, flash, and restore the backup while doing this", then some people may encounter problems because not everyone knows how to do a nandroid backup, restore it, etc. Also, there are a lot of things that need to be done precisely that way and not another way, which explains why the tutorial is huge. Also, you may notice that there is a lot of commands to run throughout the tutorial, this is because that way, I'm sure that at the end, you will have done everything like I did it on my phone, so that if you have a problem it's much easier to figure out where it comes from.
Summary of what you need to do (this is only a SUMMARY to give you a preview of what the whole thing looks like, you shouldn't follow it except if you're really an expert since a lot of things need to be done precisely, instead you should follow the easier complete steps below):
Make a Nandroid backup of /data
Backup files on internal storage
Wipe everything (internal storage + /data + system + caches), and then format data (important!)
Push and flash the OOS zip
Wipe caches and reboot (to Oreo!)
When it reboots, make sure everything (features, like Wi-Fi and fingerprint sensor) works. Don't "save anything" though, everything you do will be erased when we'll restore your backup. This is just a "test drive" for Oreo.
Reboot to TWRP, wipe Data and restore the /data backup
Run the three commands to fix Wi-Fi and fingerprints
Reboot (to System) and check everything works (don't do anything, don't change any setting, just make sure it works)
Reboot to TWRP, rename the "Android" folder to "Android_oreo" on sdcard, delete everything else on sdcard and restore your internal files
Rename the freshly restored Android (nougat) folder to "Android_nougat" and rename "Android_oreo" to "Android".
Flash Magisk, wipe dalvik+cache and reboot to System
When in Android, everything should work except some apps won't have their data. This is normal. Open a terminal (either on your phone using Termux or from your PC using adb shell), elevate using su and rename "Android" to "Android_oreo" and "Android_nougat" to "Android" (this is so that it correctly restores permissions)
If everything works fine, delete the "Android_oreo" folder
First, if you have Xposed Framework (systemless or not) installed, uninstall it. Next, if needed, uninstall any Magisk module that is "Nougat-only" to prevent any problems afterwards.
Boot the phone to bootloader/fastboot (either using advanced reboot, or by using volume down button when you start your phone) and boot to the TWRP recovery by doing
Code:
C:\> fastboot boot twrp-3.2.1-0-oreo-8.1-codeworkx-cheeseburger.img
from your PC.
Next, in TWRP, make a backup of /data (using the Backup button). Then, still while in TWRP, run the following commands:
Code:
C:\> adb shell
~ # cd /sdcard
/sdcard # tar cvf twrp.tar TWRP
/sdcard # md5sum twrp.tar
<< md5 checksum of twrp.tar >>
/sdcard # exit
C:\> adb pull -p /sdcard/twrp.tar
When the above command has finished, make sure that the checksum of the received twrp.tar file matches the one previously displayed.
If it doesn't match, delete the file and run adb pull again. Don't continue following this guide until you have received a 1:1 (checksum-wise) backup of /data.
Code:
C:\> adb shell
<< WARNING: dangerous command! double check the following line is correct before pressing enter! >>
~ # rm -rf /sdcard/TWRP
~ # rm /sdcard/twrp.tar
That was for /data. Now, the backup for the internal storage:
Code:
~ # cd /sdcard
/sdcard # du -csh
<< you should see here the total size of sdcard, that'll give you an idea of how long it'll take >>
/sdcard # tar cvf sd.tar element1 element2 element... elementN
<< in the command above, replace "element1..N" by a space-separated list of what you want to have in the backup.
Keep in mind that your list HAS to contain the element "Android" (case is important). It contains the app data.
Let's say for example you want to keep only the photos you have taken (and nothing, nothing else that was on internal storage).
The photos are in the folder DCIM, so the command will look like this:
tar cvf sd.tar Android DCIM
(because you want DCIM, and Android has to be in the list, no matter where)
>>
/sdcard # md5sum sd.tar
<< md5 checksum of sd.tar >>
/sdcard # exit
C:\> adb pull -p /sdcard/sd.tar
When the above command has finished, make sure that the checksum of the received sd.tar file matches the one previously displayed.
If it doesn't match, delete the file and run adb pull again.
Keep in mind that anything you don't put in that list will not be backed up and will be lost!
Now, you have a backup for all the important stuff so we can start doing the real sh*t.
Now, the important step:
Go back to the TWRP home screen, press "Wipe", "Advanced Wipe" and there check "Dalvik / ART Cache", "Cache", "System", "Data" and "Internal Storage". Confirm using the slider at the bottom of the screen. Press the home button, then "Reboot" and "FastBoot". Now, type the same fastboot command as in the previous step to boot the recovery image. You'll enter the recovery as before.
Now, on your PC, in the terminal, type
Code:
adb push -p OnePlus5Oxygen_23_OTA_029_all_1801292040_d71af3d.zip /sideload
(note: here, we are not using "adb sideload", we are really using "adb push"). In TWRP, click Install, in the file manager go to /sideload and select the OOS zip file. Confirm by sliding. If you get an error, go back to home, click Mount and ensure System is not checked. Then try installing again. If it still does not work, reboot to fastboot, type command again, get to the recovery and install again.
When the zip-file is installed, go home, click "Wipe", "Advanced Wipe" and check both caches and confirm. Then, go home, click "Wipe" and then "Format Data". Then, go home, click "Reboot" and then "System". Your phone will now reboot to Oreo. It will take a long time, but do not turn off the phone. Let it run. On my phone, it took on average 2 minutes for that boot.
You'll be greeted by the "first boot" page. It'll ask you if you want to restore a backup or start anew, choose start anew. Connect to your Wi-Fi network and Google account. Follow all the instructions until you get to the home screen. There, make sure everything works (especially Wi-Fi and fingerprint sensor). Don't save your fingerprints yet, they will be erased afterwards. If everything works, you can continue following these instructions. If not, post a comment down there.
Now that you're at the home screen, go in the settings, About Android and click the build number 8 times to enable Developer Options. Go in there and enable advanced reboot. Then, reboot your phone into fastboot/bootloader using the power button. Type the exact same command as before to start TWRP. Once that you are in TWRP, run the following commands:
Code:
C:\> adb push -p twrp.tar /sdcard/
C:\> adb shell
~ # cd /sdcard
/sdcard # tar xvf twrp.tar
/sdcard # cp /data/misc/wifi/WifiConfigStore.xml /sdcard/
In TWRP, click "Wipe", "Advanced Wipe" and check only the "Data" partition. Confirm. Press home, then "Restore" and choose the backup in the list. Confirm to restore. Back to the terminal, we need to run the following commands otherwise Wi-Fi and fingerprints won't work:
Code:
/sdcard # cp WifiConfigStore.xml /data/misc/wifi/
/sdcard # rm /data/misc/wifi/wpa_supplicant.conf
<< WARNING: dangerous command! double check the following line is correct before pressing enter! >>
/sdcard # rm -rf /data/system/users/0/fpdata
/sdcard # rm /data/system/users/0/settings_fingerprint.xml
Note: the command above are ran from your PC in an adb shell while the phone is still in TWRP.
Reboot the phone to system and ensure Wi-Fi and fingerprints are still working. Right now you should already see your old home screen and all your apps, but the internal storage isn't there yet. Reboot in fastboot, run the command to get in TWRP.
Once TWRP has booted, run the following commands:
Code:
C:\> adb push -p sd.tar /sdcard/
C:\> adb shell
~ # cd /sdcard
<< WARNING: dangerous command! double check the following line is correct before pressing enter! >>
/sdcard # rm -rf Alarms Albums DCIM Download Movies Music Notifications Pictures Podcasts Ringtones
/sdcard # ls
<< now, look at the list of files that were printed, and rm anything left that is not called "Android" or "sd.tar"
<< WARNING: dangerous command! double check everything is correct before pressing enter! >>
if when you do rm <the thing> it tells you it's a directory, then do: rm -rf <thething>
if there's a folder called SomeFolder, do "rm -rf SomeFolder"
next, run this:
/sdcard # ls
Android sd.tar <-- expected output
/sdcard # mv Android Android_oreo
/sdcard # tar xvf sd.tar
/sdcard # mv Android Android_nougat
/sdcard # mv Android_oreo Android
If you don't have Magisk somewhere on your sd card, download it and upload it using MTP or adb. Then flash it using the Install button. Clear dalvik/cache and reboot to system.
When the phone has booted (again, it might take time), make sure USB debugging is enabled and run the following commands:
Code:
C:\> adb shell
OnePlus5:/ $ su
<< here, you might see a Magisk screen asking for superuser access. Allow. >>
OnePlus5:/ $ cd /sdcard
OnePlus5:/sdcard $ mv Android Android_oreo && mv Android_nougat Android
Now, try some apps and make sure all the data is there (especially games and Netflix/Hulu/etc). If everything is there, and the phone works properly, go back in the terminal and type:
Code:
OnePlus5:/sdcard $ rm -rf Android_oreo
Optionally, start the TWRP app and flash it, it can always be useful. You can also reboot to fastboot to do that.
Now reboot your phone (normal reboot) one last time.
There, working OOS 5.0.2 / Android 8.0.0 phone with no data loss.
Frequently Asked Questions
How long does the whole thing take?
Highly depends on the amount of data you have on your phone. Since it the USB port only supports USB 2.0, it may take 4 or 5 hours in total.
Will doing this void my warranty?
No.
Will I be able to install future OTA updates using the regular download-reboot-flash-twrp procedure?
Yep. Just use the regular method as you would have on Nougat.
Will I lose my data?
If you follow all the instructions, no. Even if you don't follow them, as soon as you have made a backup of /data and internal storage, then no matter how bad you screw up you could always get a working phone back.
I followed the instructions and now my phone doesn't work
Boot in TWRP, wipe everything, reflash.
questions will be added there in the future
Having WiFi and fingerprint issues
You sure it is a good idea to just delete those files? I would have guessed that I need to replace these (nougat version from backup) with the oreo version to have it working just like before the restore.
Code:
/sdcard # rm /data/misc/wifi/wpa_supplicant.conf
/sdcard # rm -rf /data/system/users/0/fpdata
/sdcard # rm /data/system/users/0/settings_fingerprint.xml
I'm having the issues with wifi and fingerprints. Neither one is working. I'll try to figure out how to fix this.
@zdimension Thanks for this guide, I don't have time to test it yet, but I have a question
pdluke said:
Code:
/sdcard # rm /data/misc/wifi/wpa_supplicant.conf
/sdcard # rm -rf /data/system/users/0/fpdata
/sdcard # rm /data/system/users/0/settings_fingerprint.xml
Click to expand...
Click to collapse
At this point in the procedure, adb shell is still using root (before flashing magisk) ? How is that possible ? Does the adb /sideload preserve root ?
olivier380 said:
@zdimension Thanks for this guide, I don't have time to test it yet, but I have a question
At this point in the procedure, adb shell is still using root (before flashing magisk) ? How is that possible ? Does the adb /sideload preserve root ?
Click to expand...
Click to collapse
These commands should be run while the phone is in TWRP. Also note that adb /sideload is not used here, only adb push.
pdluke said:
You sure it is a good idea to just delete those files? I would have guessed that I need to replace these (nougat version from backup) with the oreo version to have it working just like before the restore.
Code:
/sdcard # rm /data/misc/wifi/wpa_supplicant.conf
/sdcard # rm -rf /data/system/users/0/fpdata
/sdcard # rm /data/system/users/0/settings_fingerprint.xml
I'm having the issues with wifi and fingerprints. Neither one is working. I'll try to figure out how to fix this.
Click to expand...
Click to collapse
If you delete them, they will be generated automatically at the next system boot. But you could also make a backup of those three files before wiping /data, store that somewhere, restore Nougat /data and then restore your backup of those three files. The result would be the same.
Note: actually, not exactly. Erasing the first file won't change anything since it's not used anymore in Oreo, but the two other files contain the fingerprint configuration (list of saved fingerprints). So,
Either you remove the files and you have to save your fingerprints again at next boot
Either you restore them from an Oreo backup and you'll get the fingerprints you had saved during the "first boot" procedure when you rebooted the phone right after flashing the OS
But the result is mostly the same: everything works. Deleting the files ensures you get something clean. If you restore from an Oreo backup I can't guarantee the result (as it may interfere with other files from the Nougat backup).
10 bucks to make a script to do this all for me haha.
@zdimension Thanks for the clarification Another thing you might add to the files to download would be Magisk (optionally). In this kind of guide, I've always find it useful to download everything first.
olivier380 said:
@zdimension Thanks for the clarification Another thing you might add to the files to download would be Magisk (optionally). In this kind of guide, I've always find it useful to download everything first.
Click to expand...
Click to collapse
Oops, forgot to add it
I added the link, and also instructions for how to un-root afterwards for those who would want it.
To improve the guide, here are some ideas :
- You should highlight that rm -rf is a very dangerous command, and that it needs to be checked twice (especially the targeted folder)
- It could be useful to use the du -csh command to check the size of a folder (to estimate the backup time for example).
- As a safety measure, one could md5sum the tar file before and after using adb pull
What do you think ?
olivier380 said:
To improve the guide, here are some ideas :
- You should highlight that rm -rf is a very dangerous command, and that it needs to be checked twice (especially the targeted folder)
- It could be useful to use the du -csh command to check the size of a folder (to estimate the backup time for example).
- As a safety measure, one could md5sum the tar file before and after using adb pull
What do you think ?
Click to expand...
Click to collapse
Thanks for the ideas! I updated the post (and I added a changelog at the bottom for future reference).
Followed guide for successful upgrade from 4.5.15 encrypted, unlocked bootloader w/ Magisk root.
One note, after the first complete wipe and flash of the full ROM, it was getting stuck on first boot and never completed. Discovered that I needed to not just wipe the Data partition but Format it in TWRP, to clear out the old encryption I think. Magisk wouldn't install either until I did this.
@debork thanks for the positive feedback (all the merit goes to @zdimension of course)
@zdimension there are many people in the other thread https://forum.xda-developers.com/oneplus-5/how-to/official-oxygenos-4-5-2-7-1-1-ota-t3627003 that tried (unsucessfully) to upgrade from 4.5.15 to 5.0.1, maybe a link to this topic could be useful for them (if it's not too late).
Regarding the
Go back to the TWRP home screen, press "Wipe", "Advanced Wipe" and there check "Dalvik / ART Cache", "Cache", "System", "Data" and "Internal Storage".
Click to expand...
Click to collapse
I think it should be highlighted in red, since it is the actual "clean flash" (AFAIU, correct me if I'm wrong).
if we only have the BL unlocked non root and stock recovery can we only ota without any loss of data ?
debork said:
Followed guide for successful upgrade from 4.5.15 encrypted, unlocked bootloader w/ Magisk root.
One note, after the first complete wipe and flash of the full ROM, it was getting stuck on first boot and never completed. Discovered that I needed to not just wipe the Data partition but Format it in TWRP, to clear out the old encryption I think. Magisk wouldn't install either until I did this.
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Thanks for feedback, I will add that to the guide (although it worked with just Wipe for me )
zdimension said:
Thanks for feedback, I will add that to the guide (although it worked with just Wipe for me )
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Have you rooted the 4.5.15 with Magisk or SuperSU (which is not compatible with Oreo anymore) ?
olivier380 said:
Have you rooted the 4.5.15 with Magisk or SuperSU (which is not compatible with Oreo anymore) ?
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I stopped using SuperSU when it was sold to that shady company. Also, Magisk is better imo.
quick05 said:
if we only have the BL unlocked non root and stock recovery can we only ota without any loss of data ?
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Official OnePlus support said that nothing is guaranteed if your bootloader is unlocked. But since you're on stock recovery + non rooted, you could always try. But backup everything first. Some people here on XDA have reported that it doesn't work, though.
Just followed your guide with no problems. Thank you very much!! I can confirm also that you need to format data after the wipe otherwise it gets stuck in a bootloop!
Thanks so much for this. I was able to successfully follow the guide and get upgraded to 5.0.1 without losing any data. In fact, I even messed up one step by failing to include the Android directory in the sdcard.tar backup (perhaps that should be more explicit), but it doesn't seem to have affected everything; all of my apps seem to have retained their data.
A few notes:
1. The file size of twrp.tar was ~14GB but when executing the pull command, it recognized it as only ~1.3 GB. As a result, the pull was not complete until it reached over 1000%. All the more reason to do the md5 check.
2. As others stated, I needed to format the data partition, not just wipe it.
3. I might recommend also including a "summary" version somewhere on what this guide does. Scrolling through the guide the first time, it seemed pretty daunting, but really all that you're doing is: backing up data partition and internal storage; wiping device; flashing Oreo ROM; tweaking a few files; and restoring backed up data and internal storage.
Thank you again so much! Glad to finally be on Oreo.
elight3 said:
Thanks so much for this. I was able to successfully follow the guide and get upgraded to 5.0.1 without losing any data. In fact, I even messed up one step by failing to include the Android directory in the sdcard.tar backup (perhaps that should be more explicit), but it doesn't seem to have affected everything; all of my apps seem to have retained their data.
A few notes:
1. The file size of twrp.tar was ~14GB but when executing the pull command, it recognized it as only ~1.3 GB. As a result, the pull was not complete until it reached over 1000%. All the more reason to do the md5 check.
2. As others stated, I needed to format the data partition, not just wipe it.
3. I might recommend also including a "summary" version somewhere on what this guide does. Scrolling through the guide the first time, it seemed pretty daunting, but really all that you're doing is: backing up data partition and internal storage; wiping device; flashing Oreo ROM; tweaking a few files; and restoring backed up data and internal storage.
Thank you again so much! Glad to finally be on Oreo.
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Click to collapse
Thanks for the feedback! I'll add a summary to the guide.

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