Update phone with unlocked bootloader and no root? - Huawei P9 Questions & Answers

Hi! If I have magisk root but I have uninstall magisk and flash stock boot img, as well as flash my stock recovery back. So now all I have is an unlocked bootloader, can I update my phone through OTA now? I am afraid it will brick my phone.
Cheers!

Not sure about Magisk root but there are times that when there used to be root access, even after uninstalling, some files are left behind. This sometimes lead to not being able to install official updates.

You may not be able to update normally through the EMUI updater but you should be able to do the "dload" method where you put the update in a folder called "dload" onto your external SD card.
That even worked with installed Magisk for me. Of course root may be lost if the update overwrites the boot partition and you have to install Magisk again.

Related

Unable to install SuperSu via TWRP

Hi. I've successully install TWRP using adb+fastboot.
Now, I want to install root.
I've downloaded supersu.zip file and placed it on my internal root storage.
Then I boot into twrp and flash it with Install zip.
All things seems to be done well.
I reboot: no root, no superSu app.
Any help?
lectricas said:
Hi. I've successully install TWRP using adb+fastboot.
Now, I want to install root.
I've downloaded supersu.zip file and placed it on my internal root storage.
Then I boot into twrp and flash it with Install zip.
All things seems to be done well.
I reboot: no root, no superSu app.
Any help?
Click to expand...
Click to collapse
Redownload root or try older or newer version. Try again. It should root your phone or download a rom they come rooted
I need this rom in order to unlock the device with the "device unlock" app. I've tried 10 times already, having the same result. Changed supersu versions a couple of times.
Have you tried version 2.79?
https://forum.xda-developers.com/apps/supersu/stable-2016-09-01supersu-v2-78-release-t3452703

Magisk does not work anymore after update.[v16.0][Xiaomi Mi A1]

Hi, I have been using Magisk for last one month. Everything worked fine. All my root apps worked like a charm. Today I tried to install an OTA update. For which I tried to restore stock boot image with Magisk. After Magisk showed, 'restore successful' message, I tried to install the OTA (April), but I couldn't, it kept on showing installation error.
I then tried to reboot my device but it got stuck in bootloop.
Using MiFlash Tool, I flashed back the stock ROM which restored everything including the bootloader but retained my data (user apps and settings, Magisk and other root apps were also retained.) I then updated my stock ROM with the OTA.
Then with ADB, I unlocked the bootloader and flashed the patched boot image file of April.
After booting up first time after the patch, Initially the Magisk and root checker, both showed me root access, but after a reboot, the root access was gone. The root checker now says - Root access is not properly installed on this device.
Magisk homescreen says, Magisk is Latest Version v16.0 but Magisk is not installed. On clicking the install button, it only shows two options - Download Zip only and Patch boot image file.
What should I do to get back my root access?
You have to reflash Magisk manually after every OTA update.

Help ! Problems with Magisk, root and OTA.

Hi guys I'm a beginner so sorry if i did so many stupid mistakes.
I succesfully rooted my Xiaomi Mi A1 with Magisk about 3 months ago and tried to ignore OTA updates until today
I tried to follow a guide in github which i can't link because i'm new in this foru.
Since i rooted with Magisk i followed the first method
I "restored images" then tried to update but still doesn't work
Then i decided to reboot and then tried to update but it doesn't work
So then i tried to uninstall Magisk by dragging it from the home Just like any other app but didn't work
Then proceded to delete all Magisk folders from my downloads but the update still doesn't work
Then desperately tried to reinstall Magisk but it isn't the v16 version so i tried to install it(i don't know which file i need to select so i tried selcting any image files) says it worked but it didn't so i rebooted and tried over and now i'm stuck with incomplete rooting, non-working Magisk and no OTA update.
I'd like to update OTA and bring back Magisk and root.
Ibra2800 said:
Hi guys I'm a beginner so sorry if i did so many stupid mistakes.
I succesfully rooted my Xiaomi Mi A1 with Magisk about 3 months ago and tried to ignore OTA updates until today
I tried to follow a guide in github which i can't link because i'm new in this foru.
Since i rooted with Magisk i followed the first method
I "restored images" then tried to update but still doesn't work
Then i decided to reboot and then tried to update but it doesn't work
So then i tried to uninstall Magisk by dragging it from the home Just like any other app but didn't work
Then proceded to delete all Magisk folders from my downloads but the update still doesn't work
Then desperately tried to reinstall Magisk but it isn't the v16 version so i tried to install it(i don't know which file i need to select so i tried selcting any image files) says it worked but it didn't so i rebooted and tried over and now i'm stuck with incomplete rooting, non-working Magisk and no OTA update.
I'd like to update OTA and bring back Magisk and root.
Click to expand...
Click to collapse
Why you didn just flash Magisk uninstaller. Zip file?
Poslato sa VTR-L29 uz pomoć Tapatoka
urbanboymne said:
Why you didn just flash Magisk uninstaller. Zip file?
Poslato sa VTR-L29 uz pomoć Tapatoka
Click to expand...
Click to collapse
Sorry, i thought that i could still keep Magisk and root intact if i didn't use the uninstaller.
Ibra2800 said:
Sorry, i thought that i could still keep Magisk and root intact if i didn't use the uninstaller.
Click to expand...
Click to collapse
No you cant. You are lucky you didnt brick your phone. Flash uninstaller and than try OTA update. Download TWRP for your phone/new rom and flash working Magisk again and root phone. Is simple. Of course, if you are on TWTP you will be unable to OTA update your phone. You need stock recovery or wait for ZIP flash file of newes rom
Poslato sa VTR-L29 uz pomoć Tapatoka
@Ibra2800 There's no need to uninstall Magisk to update with an OTA. There are however a few prerequisites that need to be fulfilled:
You need to have the stock boot image installed. That can be done by using the restore images option in the Manager or manually flashing the boot.img file with fastboot or equivalent.
You need to have the stock recovery installed. This means the OTA will fail if you have TWRP or another custom recovery installed. Either keep the stock recovery installed and only boot the TWRP image when necessary (the fastboot boot command), or you make sure you restore the stock recovery image when you need to update.
You also need to have a few important partitions on your device untouched. Those include (but may not be limited to) /system and /vendor. If you've so much as mounted these as rw, the OTA will fail. This one can be tricky, because if an app has root access it can easily do this without you noticing.
If you manage to fulfill the above, you should be able to update your device. If the A/B method from @topjohnwu's OTA tips didn't work, use the general case instructions instead.
Right now, it sounds like you need to start from scratch though...
If you can get a hold of a full firmware file for your device, you might be better of flashing that instead. Or, wait for a flashable update, as stated above. And if you want to reinstall Magisk you might have to first uninstall it, to start clean. Use this uninstaller.
Thanks for trying to help me
Sorry to ask but i just can't wrap my head around it, how am i supposed to use the uninstaller, what are the steps ? Also i only user Magisk so i think i don't have any custom recovery and don't know what's TWRP purpose.
Ibra2800 said:
Sorry to ask but i just can't wrap my head around it, how am i supposed to use the uninstaller, what are the steps ? Also i only user Magisk so i think i don't have any custom recovery and don't know what's TWRP purpose.
Click to expand...
Click to collapse
The uninstaller is a zip that you flash in a custom recovery (i.e. TWRP) to uninstall Magisk completely. You should also be able to use the "Complete uninstall" option in the Magisk Manager.
TWRP is a custom recovery that you can use to make backups of your device partitions (so you don't loose any data if anything goes wrong, it's highly recommended to make regular backups in some way) and install custom ROMs and other modifications to your device. You can either install it permanently or just boot it whenever you need it (there are likely gonna be guides about this in your device's forum).
Since you seem to be quite new at this, I would suggest that you take some time to browse through your device's forum and familarise yourself with things like ADB, fastboot, custom recoveries, custom kernels, ROMs, etc. And if you have more questions like this, it's often best to ask them in the device forum, since there sometimes are device specific things that need to be done for everything to work right.

Update rooted Pie to Pie without loosing TWRP, root, Magisk and apps

Hi, I'm on Pie, rooted, Magisk, TWRP. I downloaded latest firmware through XperiFirm. If I remove file userdata_X-FLASH-CUST-C93B.sin from firmware, my apps will be intact. But can I also remove boot folder, to keep my current loader (TWRP)? Also will such upgrade remove root ?
Ideally I want to keep apps, TWRP, root (Magisk), not erase SD card. Is it possible?
Interested... I've think all time, to hold the user data, I just delete the sin file which contains the word user in front....
following this!
same situation, curious if a upgrade to new FW is able of keeping the userdata.
It's normal, that root is lost after update..... Supersu or Magisk must be flashed after update the system.
How to keep TWRP? It's the question, where TWRP is located and linked.... I must reflash also TWRP all time after new update.

[GUIDE] OTA on TWRP

i saw an update on Redmi Note 8T (11.0.9).
I'm rooted with TWRP, so I just tried to update. New update was downloaded into directory downloaded_rom.
phone was automatically rebooted into TWRP, but I didnt know there is update in that directory. I just rebooted device into system.
I got a message that update failed. I click update and started to look for file/folder created during download process. So i discovered directory downloaded_rom in root folder.
phone was automatically rebooted into recovery (twrp) and it was flashing update without my help.
after reboot, device was updated. the only thing to do was flash TWRP (i have paid version of TWRP) and flash magisk.
everything works fine and my phone is rooted on 11.0.9.
i thing, that second file was whole ROM (1.9GB)
in my personal experience, if you get rebood to twrp, flash Disable Dm Verity ForceEncrypt to boot into rom
title
Was Magisk installed before the update? Since you are saying it rebooted to TWRP without you knowing, were you able to restore stock images before updating? Could you also provide information concerning the update? For example, miui version (updating from vXXX to vXXX)
jjsan said:
i saw an update on Redmi Note 8T (11.0.9).
I'm rooted with TWRP, so I just tried to update. New update was downloaded into directory downloaded_rom.
phone was automatically rebooted into TWRP, but I didnt know there is update in that directory. I just rebooted device into system.
I got a message that update failed. I click update and started to look for file/folder created during download process. So i discovered directory downloaded_rom in root folder.
phone was automatically rebooted into recovery (twrp) and it was flashing update without my help.
after reboot, device was updated. the only thing to do was flash TWRP (i have paid version of TWRP) and flash magisk.
everything works fine and my phone is rooted on 11.0.9.
i thing, that second file was whole ROM (1.9GB)
Click to expand...
Click to collapse
Was Magisk installed before the update? - yes, device was rooted, with Magisk installed
were you able to restore stock images before updating - dont understand this, after downloading update and clicking on install, device was rebooted into twrp
miui version (updating from vXXX to vXXX) - update from 11.0.7.0 to 11.0.9.0
jjsan said:
Was Magisk installed before the update? - yes, device was rooted, with Magisk installed
were you able to restore stock images before updating - dont understand this, after downloading update and clicking on install, device was rebooted into twrp
miui version (updating from vXXX to vXXX) - update from 11.0.7.0 to 11.0.9.0
Click to expand...
Click to collapse
What I meant was whether you uninstalled Magisk/restored original boot img prior to the update because sometimes not doing so tends to result in bootloop (happened to me before). I needed some information before I attempt the update myself. Thank you for replying.
P.S. One more question: All data was preserved, right?

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