File/Data Recovery on unrooted stock P20 Pro CLT-L29 [HELP] - Huawei P20 Questions & Answers

Hi, so some background, it has been a long time since I have touched custom ROMs or root access on an android device (back when the Nexus 2 released) so I don't really remember anything and know nothing about how the android environment has changed.
The reason for my post is that I was "hiding" sentimental/sensitive material in a folder associated with the Google Drive application using a file manager app (cut and paste into Drive folder) so that it wouldn't appear in Gallery scans, and when my drive app wasn't working as expected I (stupidly) uninstalled the update (can't actually uninstall the app on stock ROM) causing the folder to be wiped. Now I'm trying to find a way to recover the files but all the solutions recommended by a google search that I've tried require root and from what I know, correct me if I'm wrong, unlocking my bootloader to gain root access will wipe my internal storage which would probably defeat the whole purpose(?) of trying to recover information as it will overwrite the sectors. So does anyone know of anyway that I can recover this data from my device? I am willing to root as long as it will yield results.
tl;dr - need to recover files on stock P20 Pro (locked bootloader, no root), please help I am lost and a noob now
Thanks in advance!
P.S. This was (incorrectly) posted in the discussion forum before and I have requested it to be deleted

BUMP
bump!

Bump! Can anyone please help?

Bump? :fingers-crossed:

toushingo said:
Bump? :fingers-crossed:
Click to expand...
Click to collapse
Stop bumping. You are simply in the wrong section. None of us has a Pro model. This is the P20-Forum. Not Pro, not lite. I can not understand why people see 3 different devices as one. Ask here. Good luck!

Related

Help rooting H60 L12

Hello, first thanks for such an amazing community.
Just taken receipt of the H60 L12. The phone was updated by the seller with B611. The kernel version is 3.10.30-g41362b8-dirty.
I apologise in advance, I know most of the information is already on the forum, but I'm nowhere near as efficient at processing information as most. Just need a little clarity.
I would really like to remove the Chinese characters from the magazine lock/ contacts, some miscellaneous apps and change up to the B307.
I've read through the Honor 6 H60-L04 ROOTING METHOD Step by Step
Can this method be used for the L12?
Step 2 of the guide says:
Download, unzip and open the Honor 6 Multi Tool folder.
Extract the file SuperSU.zip from the 'Tools' folder and put it on your phone's SD Card.​
I downloaded Multi-Tool but is UPDATE-SuperSU-v2.40.zip the same as SuperSu.zip everyone refers to?
Thanks in advance.
Just disable the magazine and the chinese chars are gone .
The chinese chars are together with the pictures. Some info about the picture and the photographer or so. Change the pictures to your own and the chinese writing is gone.
Removing the chars from the contacs is possible but breaks the updates.
You can root with the Multi Tool or manual with these howto: http://forum.xda-developers.com/showpost.php?p=57271243&postcount=5 It is in the same thread as the multitool and from the dev of this tool.
The supersu zip should be the same or just a newer version. I thinks the Multi-Tools keeps the versions up to date
Thank you so much Julsen. I now have an English lock screen. Yay!
Thanks also for clarifying root & BL. I will read it All again. If I have any hiccups I will post back. :fingers-crossed:
You are welcome. I was in the contacts app and it seems the chinese chars are gone in the b310 built
Gesendet von meinem H60-L12 mit Tapatalk
Hi there again,
Moving over to the new B310 from B611. In order to achieve this, will I have to unlock BL and Root?
Also, the phone currently has playstore on it. Will I lose this or will I have to reinstall?
Apologies for newbie questions, better safe than sorry.
There is no Unlock nor Root needed for the updates. Just grab the right ROM from the EMUI site or from the Archive here: http://forum.xda-developers.com/showpost.php?p=57273395&postcount=3
The update should be done without losing ur data but you should make a backup for the worst case. For the update you need the stock recovery and an untouched build.prob
Just read in the threads. Most of your questions was already asked and aswered.
Thanks again Julsen,
Without sounding completely daft, do I need build.prop for both B611 and B307?
I have no idea if the current build.prop has been modified or is untouched. How does one check this?
Is there a flash counter on the Honor 6 ? How does one check to see if the system has been rooted/ bl unlocked before? And, is there a reset counter for this?
Perhaps my terminology is incorrect, but I have honestly searched for this info and can't find it. Any and all help is very much appreciated.
:angel:
If you did no changes to the build.prop, it should be untouched. Root is normally no problem for updates nor an unlocked bootloader.
Well, after much gnashing of teeth, I have managed to update from B611 to B310. Effortlessly and painlessly.
It would seem that although I had HiSuite2.3.35, mine didn't have an option to download and install new rom updates. I don't know why this is but the 'My Tools' tab was missing from mine.
I was searching for examples of rooting and unlocking and a visual guide as to how to flash new rom, when fell across a Russian ytvid which linked to a copy HiSuite v2.3.15, seeing I didn't have that much to lose I loaded and well, voilà, I gained the My Tools tab and I updated to B310 without any hassles at all.
However, I did make a mistake. I factory reset phone (don't ask :facepalm: ), so now I have all the Chinese apps most of which are system apps.
Is there a list as to which of these apps are safe to remove?

[Completed] Inaccessible files after rom change

Hello guys! I'm in a bit of an odd situation here.
What is happening is that my Huawei Ascend Mate 7 has files, which are physically written in the internal storage, but with no way to access them.
Here's the picture: (can't post links...)
i.imgur.com/jyEUiSX.png
Here you can see that the disk usage analyzer detects those files, but when listing all files, it doesn't show them... causing the results to not add up.
Here's what caused it:
I was flashing an unofficial CM11 (the first one available for the AM7) that seemingly created a different partition for data storage, instead of using the one that the stock rom was using before. I moved my files there, but decided to restore my backup of the stock rom. But that cut access to that new partition completely, though the files themselves weren't deleted.
If anyone has a clue on how I can get access back to these files, input is greatly appreciated!
MGPlatinium said:
Hello guys! I'm in a bit of an odd situation here.
What is happening is that my Huawei Ascend Mate 7 has files, which are physically written in the internal storage, but with no way to access them.
Here's the picture: (can't post links...)
i.imgur.com/jyEUiSX.png
Here you can see that the disk usage analyzer detects those files, but when listing all files, it doesn't show them... causing the results to not add up.
Here's what caused it:
I was flashing an unofficial CM11 (the first one available for the AM7) that seemingly created a different partition for data storage, instead of using the one that the stock rom was using before. I moved my files there, but decided to restore my backup of the stock rom. But that cut access to that new partition completely, though the files themselves weren't deleted.
If anyone has a clue on how I can get access back to these files, input is greatly appreciated!
Click to expand...
Click to collapse
Hello and thank you for using XDA Assist.
Sorry to hear about your trouble but fortunately there is an XDA area dedicated to the Huawei Ascend Mate 7 at http://forum.xda-developers.com/mate-7 which would be a good starting place. I suggest you post your question with all relevant details in the friendly Q&A forum there at http://forum.xda-developers.com/mate-7/help where the experts familiar with your device will be best able to guide you.
Good luck!
EDIT: Member has now posted in the suggested area. Thread closed.

Accidentally deleted album

Hi all,
I hope someone will be able to help me! I have an s8+ model SM-G955FD. I was in the gallery and deleted an entire album (amazed it would even let me do that without confirmation). How do I get my lost videos/images back please? I have tried dr.fone which says the phone needs to be rooted and oneclickroot has said it can't be rooted yet. I don't particularly want to root my phone.
Please help!
Thanks in advance
Joe
Are you in the habit of logging into Google or Samsung accounts?
If so you may find they were backed up to the cloud, if not there are a number of apps on Playstore, one such is called 'DiskDigger Photo Recovery', all purporting to recover deleted files.
Thanks for your prompt response.
Unfortunately the videos weren't backed up. I've tried DiskDigger which is very good - it didn't find the videos and says I need to do a deeper scan for which a root is required.
Sorry to hear that. Were you at least able to salvage some or all of the photos?
kxdaorbit said:
Sorry to hear that. Were you at least able to salvage some or all of the photos?
Click to expand...
Click to collapse
Yes I did thanks but the videos are an issue. I've been trying to use the phone as little as possible hoping I'll be able to undelete the files but so far I haven't found anything to do that.
Try this For Videos Recovery Without Root
https://play.google.com/store/apps/details?id=video.recovery&hl=en
For Pictures Disk Drigger is best without root
Thanks very much. Great app in theory but in practice it seems to have copied all my whatsapp video to the recovered folder! I guess without root (which I believe can't be done for the S8), I'm stuffed.
I find someone says the GT Recovery and DiskDigger. But when I tried with them just find some small photos, no the original.

I've deleted some important files by mistake and I would really like to recover them.

Hello,
I hope that this is the right side of the forum to describe my problem. I desperately need help. It's a long story:
I had on my Samsung phone the app of "Chrome", which I always use to surf the internet. Using the google browser IN THAT APP, I have downloaded lots of things (I'm a scholar, so I like to read and I use to download everything that I found interesting). I have updated the app and I was frustrated, because I couldn't take anymore screenshots while surfing in "incognito mode". So, I decided to delete the update: i went into "settings", then "apps", and then I have brought back the app of "Chrome" as it was when i bought my phone. Sadly, I then noticed that I had lost every file in my download folder; I had lost every file downloaded with that app.
I had not synchronized my Google account, I can do no backup. I'm so angry and sad because I've always thought that the files downloaded would have stayed in my phone until I and only I would have decide to delete them.
I have done a lot of research on the internet and I have found out that there are some apps that can recover a very large part of lost files. But, in order to do this, I have to root my phone.
My phone is a Samsung Galaxy J2 SM-J250Y/DS, and the Android version is 7.1.1. I have seen that rooting a phone could be very dangerous; also, to me is very complicated. But there is a program called Kingoroot, which, once installed on my computer, could (it's a possibility, I know!) rooting my phone easily.
What should I do? Should I try the rooting method? It seems to me the only way...
I ask you any suggestions... Please help me. I am a depressed student that, in this life, can only enjoy reading and books...
(I am Italian, and I hope my English is understandable. If I did any mistake, please forgive me.)
Sorry can't help you get what you lost back... I feel your pain.
After losing thousands of bookmarks over the decades I started using Colornotes to save my important bookmarks.
You can save the hyperlink with a title, color, and whatever text you want to add. If you punch the hyperlink it opens in the default browser.
The app allows you to save it's data to your sd card which you can backup on your PC.
Use ApkExport to make a loadable copy of the app to future proof it.
ColorNote Notepad Notes - Apps on Google Play
ColorNote® - Easy to use notepad for notes, shopping list, to-do list, calendar
play.google.com
Thank you very much for your reply.
But... If I root my phone, and if the rooting is done without any damage, is there a possibility to get most of my files back? Or, even if I root my device, I will never be able to recover them?
It sounds like it deleted the data when you rolled the apk back (to factory load?).
If so it's going to be very sketchy at best to recover them.
I guess history's been deleted as well?
There are many coders here that have far greater knowledge than myself with Chrome.
My understanding of rooting is very basic as with Chrome which I rarely use.
If no one else replies in a day or two, bump it back to the top. Hope you find a work around solution.
AlexiusFrigerius said:
But... If I root my phone, and if the rooting is done without any damage, is there a possibility to get most of my files back? Or, even if I root my device, I will never be able to recover them?
Click to expand...
Click to collapse
Rooting Android by means of TWRP and/or Magisk ( keyword: SuperSU ) affects its /data partition where phone's data typically are housed. Therefore it cannot be excluded that data stored there is overwritten and can therefore no longer be restored.
jwoegerbauer said:
Rooting Android by means of TWRP and/or Magisk ( keyword: SuperSU ) affects its /data partition where phone's data typically are housed. Therefore it cannot be excluded that data stored there is overwritten and can therefore no longer be restored.
Click to expand...
Click to collapse
Is there the possibility if deleted that it's still on the system cache and is there a way to recover it if so on a none rooted phone?
Maybe using ABD?
Don't some on the "one touch" root solutions claim to preserve the data?
Android doesn't have a recycle bin thus nothing gets cached. Deleting a file means nothing else than marking the space it occupies - whereever this disk space is located - as usable so that it can be overwritten by the system.
Have never used a "One-Click-Root" utility ...
blackhawk said:
It sounds like it deleted the data when you rolled the apk back (to factory load?).
If so it's going to be very sketchy at best to recover them.
I guess history's been deleted as well?
There are many coders here that have far greater knowledge than myself with Chrome.
My understanding of rooting is very basic as with Chrome which I rarely use.
If no one else replies in a day or two, bump it back to the top. Hope you find a work around solution.
Click to expand...
Click to collapse
Yes, it's just like I told. And yes, even history has been deleted.
Thank you for your help! I will wait until someone may give me a solution, or a possibility for a solution.
jwoegerbauer said:
Rooting Android by means of TWRP and/or Magisk ( keyword: SuperSU ) affects its /data partition where phone's data typically are housed. Therefore it cannot be excluded that data stored there is overwritten and can therefore no longer be restored.
Click to expand...
Click to collapse
Ok, I understand...
jwoegerbauer said:
Android doesn't have a recycle bin thus nothing gets cached. Deleting a file means nothing else than marking the space it occupies - whereever this disk space is located - as usable so that it can be overwritten by the system.
Have never used a "One-Click-Root" utility ...
Click to expand...
Click to collapse
Thank you for your explanation.
jwoegerbauer said:
Android doesn't have a recycle bin thus nothing gets cached. Deleting a file means nothing else than marking the space it occupies - whereever this disk space is located - as usable so that it can be overwritten by the system.
Have never used a "One-Click-Root" utility ...
Click to expand...
Click to collapse
Yeah I was aware of the overwrite issue but on an unrooted device I don't think you can access the system cache. Even if you could the data could be so juxtaposed from lose of file structure as to be unusable.
One-Click-Root worked on older versions of Kitkat allegedly.
So... I understand. But I want to try. I want to root my phone. But I have to know how and I must prevent my phone from all the risks.
blackhawk: you said that the "One-Click-Root" method worked only for Kitkat Android. But I have read here that with Kingoroot i could have a chance:
How to Root Android Nougat (7.0/7.1) | KingoRoot Apk
Root any Android Nougat 7.0 7.1 device with KingoRoot.
www.kingoapp.com
(It's important: I AM NOT SPAMMING Kingoroot, I just want to understand If I can trust what it's written in their site. Also, in the link, at the end of the page, there is written that I can root my phone with my PC, which, to me, seems a safer way. It's the main idea I had when I decided to write in this forum, because I wanted to know the opinions of people that are very able to use these methods and these kind of programs.)
AlexiusFrigerius said:
So... I understand. But I want to try. I want to root my phone. But I have to know how and I must prevent my phone from all the risks.
blackhawk: you said that the "One-Click-Root" method worked only for Kitkat Android. But I have read here that with Kingoroot i could have a chance:
How to Root Android Nougat (7.0/7.1) | KingoRoot Apk
Root any Android Nougat 7.0 7.1 device with KingoRoot.
www.kingoapp.com
(It's important: I AM NOT SPAMMING Kingoroot, I just want to understand If I can trust what it's written in their site. Also, in the link, at the end of the page, there is written that I can root my phone with my PC, which, to me, seems a safer way. It's the main idea I had when I decided to write in this forum, because I wanted to know the opinions of people that are very able to use these methods and these kind of programs.)
Click to expand...
Click to collapse
You can try it; it will either work or nothing will happen. Even if it works it's likely those files are gone. Maybe better to chalk it up to another lesson from the University of Hard Knocks.
You could try contacting Google tech support to see if they have any ideas.
The last AT&T firmware update was specifically to block easy rooting by Kingroot; the rats learn quick.
blackhawk said:
You can try it; it will either work or nothing will happen. Even if it works it's likely those files are gone. Maybe better to chalk it up to another lesson from the University of Hard Knocks.
You could try contacting Google tech support to see if they have any ideas.
The last AT&T firmware update was specifically to block easy rooting by Kingroot; the rats learn quick.
Click to expand...
Click to collapse
Thank you very much for your help. I understand: I must give up. But the most important thing is to learn something about anything we do. Anything could help for future situations.
"It's a shame to stumble twice on the same stone" (Polybius, 31,11, 5).
Thank you again. Goodbye!
AlexiusFrigerius said:
Hello,
I hope that this is the right side of the forum to describe my problem. I desperately need help. It's a long story:
I had on my Samsung phone the app of "Chrome", which I always use to surf the internet. Using the google browser IN THAT APP, I have downloaded lots of things (I'm a scholar, so I like to read and I use to download everything that I found interesting). I have updated the app and I was frustrated, because I couldn't take anymore screenshots while surfing in "incognito mode". So, I decided to delete the update: i went into "settings", then "apps", and then I have brought back the app of "Chrome" as it was when i bought my phone. Sadly, I then noticed that I had lost every file in my download folder; I had lost every file downloaded with that app.
I had not synchronized my Google account, I can do no backup. I'm so angry and sad because I've always thought that the files downloaded would have stayed in my phone until I and only I would have decide to delete them.
I have done a lot of research on the internet and I have found out that there are some apps that can recover a very large part of lost files. But, in order to do this, I have to root my phone.
My phone is a Samsung Galaxy J2 SM-J250Y/DS, and the Android version is 7.1.1. I have seen that rooting a phone could be very dangerous; also, to me is very complicated. But there is a program called Kingoroot, which, once installed on my computer, could (it's a possibility, I know!) rooting my phone easily.
What should I do? Should I try the rooting method? It seems to me the only way...
I ask you any suggestions... Please help me. I am a depressed student that, in this life, can only enjoy reading and books...
(I am Italian, and I hope my English is understandable. If I did any mistake, please forgive me.)
Click to expand...
Click to collapse
Hi, I would suggest you can try free tool for Android Phone such as Stellar Data Recovery for Android which easily recover deleted files like, photos, audio files, videos files from your Android phone internal memory storage.
Source: https://www.stellarinfo.com/media-tools/android-data-recovery.php
{Mod edit: Quoted post has been deleted}
That drfone again. Scamware.
Do Not Use.
Drfone if used will encrypt "recovered" data and ask you to pay for it. After which the original data is gone leaving only the encrypted copy.
It is not free... not to be trusted!
Ran into this scam many years ago.

Backup problems and questions

Hi, first of all, thank you for reading me.
I think i messed up big time.
I had Havoc OS 4.1 installed since more than a year and it was kinda messy e.g. the sim card card wasnt recognized anymore so wasnt able to make calls because i played to much in the settings.
Having some stupid but incredibly addictive games on this smartphone i decided to keep it like this and since i'm a complete n00bs and being afraid of security risk of rooting my device i never rooted it.
Big mistake.
So, recently, one games needed an update (like they all do at least once a week) and since i'm anti-google/f***book (no comment please) i nvever saved my progress in the cloud and "that" game required absolutely an update.
I installed the update from an alternative apk source and , (applause if you want and laugh), it screwed up the game.
Now the nightmare begin.
Since the device isnt rooted i made a backup of /data partition. Gone crazy and before i might explode in an uncontrollable fury and madness i used LMSA to rescue the phone. And myself, lol.
Now i have stock android and i am googled to the bone. My butt hurts. My head too.
THE (first) simple question is : how can i restore this backup because i have the error 255?
Notes and observations; logically i would say because the device is back with stock rom and doesnt have the same os/rom installed and/or the partition and whatever is not the same wich may explain the error 255.
SECOND QUESTION: can i extract/uncompress this backup and take the precious data wich is my games progresses and restore it somehow?
I know i have to give as much information possible but i dont what else to give. If you need logs, or everything else just say it nicely and i will give it to you with immense pleasure.
Oh yeah, model : XT2113-2 5g Kiev RETCA 128gb a/b type and maybe was crypted before because twrp asked me the password to make backup or else.
Thank you in advance and i really hope somebody would help, if not i just loosed 1.5 years of stupid gaming because i messed up like an idiot. (A lesson well learned, the hard way...)
Thank you so much for not answering this simple question.
Kerplunk83 said:
Thank you so much for not answering this simple question.
Click to expand...
Click to collapse
The problem is it's a Motorola with a Qualcomm chip.
If you find a solution I would love to see it.
Finally a sign of life from someone here.
Thank you sd_shadow
sd_shadow said:
The problem is it's a Motorola with a Qualcomm chip.
If you find a solution I would love to see it.
Click to expand...
Click to collapse
These precious brief and concise 2 lines of a simple answer is immensely welcomed.
Wich point me to reply that to my knowledge i interpret it as a security chip with big chances that its in relation to the knox technology.
It also point me to ask WHY, if i cant back up because of that, why/how is it possible to install a custom rom or gsi (sorry i still dont make the difference because i dont understand it) on this very protected smartphone?
That must explain why i had problems trying to root it and fail each time.
Finally i think that i should use another device for android gaming since i dont want to depend on f***book and google.
Thanks again sd_shadow. Even if it was a very simple answer it enlightens me alot.
Note: sorry for my bad english.
Kerplunk83 said:
how can i restore this backup because i have the error 255?
Click to expand...
Click to collapse
This error code means that at some point your backup of /data could not be extracted further. But for more detailed infos you must provide a recovery.log which will be generated when doing a backup of e.g. /boot.
>>> Please DO NOT copy+paste it here!! <<<​Rename it (recovery.log > recovery.log.txt) to be able to upload it within "Attach files".
Kerplunk83 said:
can i extract/uncompress this backup and take the precious data wich is my games progresses and restore it somehow?
Click to expand...
Click to collapse
Yes, use Titanium Backup (TB). Although it's very outdated it still features a restore of single apps out of a TWRP backup. Here's how you do it:
1. IMPORTANT: TB will only search for TWRP backup files on internal storage!! Use the default path created by TWRP, e.g.: /sdcard/TWRP/BACKUPS/ZY322V8K28/2023-04-08--06-53-20/
2. Install and open Titanium Backup.
3. In the upper right corner tap
MENU > scroll down to "Extract from Nandroid backup" > choose your backup folder
##############
Notes:
- Usually a TWRP backup of /data consists of several parts (data.ext4.win000, ~win001, ~win002 etc). TB requires all of them (or at least those ones with the /data/data/ path inside).
- If you are facing this error message:
Could not find any data in this TWRP backup
then your TWRP backup is compressed with gzip. To decompress it you must rename the file
data.ext4.win001 > data.ext4.win001.gz
and extract it with any archiver tool, e.g.:
- ZArchiver (Android)
- 7zip (Windows)
- Problems finding any TWRP backup data with Titanium Backup? Then please check your path!! (see above section)
Good luck!!
Thank you very much WoKoschekk i'll do it as soon i'll have the time for since i'm working today.
Thank you so much again, i'll keep you posted with logs and such.
I'm sorry i didnt gave news since, i'm not doing very well.
there's those 2 question i still have in my head;
1-With all the instructions you gave me is it worthy to continue because when i did the backup i wasnt rooted?
2- i'm sure i read many time to use Titanium Backup (wich is a paid app?) i have to be rooted or have root access.
Ultimately, how can i be rooted if there's a chip preventing me to do so?
I'll keep you posted when i'll be of better health, thank you.
Kerplunk83 said:
-With all the instructions you gave me is it worthy to continue because when i did the backup i wasnt rooted?
Click to expand...
Click to collapse
TWRP backup = *.tar archive
TB unpacks the needed app's data and nothing else. You must be rooted to have access on /data for restoring your apps. But for the backup process it doesn't matter if you were rooted. Root is part of your boot.img.
Kerplunk83 said:
2- i'm sure i read many time to use Titanium Backup (wich is a paid app?) i have to be rooted or have root access.
Click to expand...
Click to collapse
TB is for free. But a paid version unlocks additional features (not related to the TWRP restoring feature).
And yes... root is mandatory for TB. As I said before you must have r/w access on /data/*.
Kerplunk83 said:
if there's a chip preventing me to do so?
Click to expand...
Click to collapse
Which chip?? You already have root access via TWRP. Magisk is only needed in system and just a patched boot.img (custom kernel).
Get well soon!
WoKoschekk thank you for this insanely fast reply.
All those answers and infos have now a gigantic value for me, if only i knew that before.
To describe a bit more my situation i slept only few hours since 5 days, vomiting, heavy coughs and fever.
I'm sure i'm not supposed to but i will anyway, i engage myself and promise to reward you (in particular) and others for the help you're bringing me. It wont be much but very important to me.
I'll go try to get (again) some rest. Just before i go, why was there a mention about my device;
"
The problem is it's a Motorola with a Qualcomm chip.
If you find a solution I would love to see it.
"
I dont ask you (WoKoschekk) or other to explain in the most explicit and endless details of what is exactly this "chip" and all the history that goes with it cause i dont want to be a pain but just why it was mentionned. Only, why?, it has ben mentionned.
I cant wait to get better since i finally see possibilities to get back those files.
Have a nice week-end and thanks again.
@Kerplunk83 To reveal the mystery behind "the chip": Motorola released two variants (Snapdragon/Mediatek CPU) of this model. Since the CPU largely determines the system structure, building a functional TWRP for both of them is very challenging. It seems that TWRP for the SD's variant got some bugs while the MT's variant runs more smooth. Due to this fact the error 255 is caused by something that you weren't be able to fix.
Regarding your problem: To restore an app and its specific app data you need the proper permissions to write in /data/data and /data/app. For this permissions you either need TWRP or Magisk installed. TWRP seems to be unable to write in that specific directory. On the other hand you don't want to install Magisk. I'm sorry but with this setup your problem can't be fixed.
Just out of curiosity, could you provide me a recovery.log showing error 255 during the restore process?
Please DO NOT copy/paste the whole log and post it here!! Instead of this you should rename the file (recovery.log => recovery.txt) because a file called *.log isn't allowed for upload. But a *.txt file is.
Options to create a recovery.log:
1. adb pull /tmp/recovery.log
=> copies a recovery.log into your ADB/fastboot folder
2. Do a backup of sth. like "boot" because the backup process will create a recovery.log by default
3. TWRP mainscreen > advanced > create log (kernel log isn't needed here)
=> log is stored on the default storage (internal or external) that you have choosen for backups etc.

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