Database Info

[GUIDE] Downgrade to Marshmallow from Nougat Soak Test

Hey guys , many people were having problems downgrading their device so i thought i should make this thread.
I have downgraded my phone successfully and this should also work for other variants.
So let's Start
Prerequisites :
Phone with Unlocked bootloader
Drivers Installed
Phone Charged to 50%
Phone having Nougat Soak Test
mfastboot and adb
How To :
First Setup adb and Fastboot , by extracting the mfastboot-v2 file in the C:\ directory. So that the files are in a folder in the C directory. Ill name this folder as adb.
Download the correct firmware(Stock Marshmallow) for your device , I have links to all down below.
Extract the firmware files in the same adb folder.
Download the run.bat file . Link below
copy the run.bat file inside the adb folder
Open your phone in bootloader mode by first turning off your phone. Then pressing and holding power and volume down at the same time for around 3 seconds.
Connect your phone to your computer via a usb cable
Double click and run the run.bat file.
After the window closes. Start the phone by selecting the start option in the bootloader mode.
Tap the power button to start.
That's it Now you have successfully downgraded to Marshmallow.
You can also Follow the Video i made on my channel :
https://youtu.be/4OQQn105Bp8
Download :
fastboot and adb : http://www.mediafire.com/file/v60h40vkwet979y/mfastboot-v2.zip
RUN.bat : http://www.mediafire.com/file/6i92vcoa5m1oslb/run.bat
Drivers: http://www.motorola.com/getmdmwin
Firmware --
XT1622 & XT1621 :http://www.filefactory.com/file/1pq...4.139-23.4_cid50_subsidy-DEFAULT_CFC.xml.zip#
XT1641-XT1643 : http://www.filefactory.com/file/6jg...24.139-13.1_cid50_subsidy-DEFAULT_CFC.xml.zip
XT1625(US) : https://accounts.motorola.com/ssoau...edirect/standalone/bootloader/recovery-images
FOR REST FIND FROM THIS SITE : http://www.filefactory.com/folder/c6cdedc45a775d27/?sort=created&order=DESC&show=25&page=1

Hello and thanks. Im trying to download for Xt1622 but got message "https://goo.gl/SLFcsx – this goo.gl shortlink has been disabled. It was found to be violating our Terms of Service. Click here and here for more information about our terms and policies respectively."

It's working
PD: I'm the person from Reddit

Are you able to lock the bootloader after downgrading?

kosmasgr said:
Hello and thanks. Im trying to download for Xt1622 but got message "https://goo.gl/SLFcsx – this goo.gl shortlink has been disabled. It was found to be violating our Terms of Service. Click here and here for more information about our terms and policies respectively."
Click to expand...
Click to collapse
Will stop using link shortners from now on. *Updated the Links*

EvilHowl said:
It's working
PD: I'm the person from Reddit
Click to expand...
Click to collapse
Nice

claytoncamilleri100 said:
Are you able to lock the bootloader after downgrading?
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Click to collapse
[EDIT] Noo, but i really have no idea why people lock bootloaders after unlocking them.
Sorry for the wrong information, i locked my bootloader on the nougat soak test and misread your question!

TechBurner said:
Yes, but i really have no idea why people lock bootloaders after unlocking them.
Click to expand...
Click to collapse
Did you relock it ? I don't think it's possible if you are downgrdin from 7.0 as the booloader is upgraded

i want to revert from cm14.1 to marshmallow. so the procedure is same or can anyone suggest me what to do?? i have the stock image also

pranjal24 said:
i want to revert from cm14.1 to marshmallow. so the procedure is same or can anyone suggest me what to do?? i have the stock image also
Click to expand...
Click to collapse
Yes this should work .

I have a locked bootloader and im on soak build NPJ25.75-2.
Do I need to unlock the bootloader to flash this new soak build. Or can I downgrade to MM without unlocking bootloader.
I dont understand that if I'm flashing official files then why do I need to unlock the bootloader.
What I want to do is to update to the lastest build of N from soak build without unlocking bootloader.

Iqbal Ansari said:
What I want to do is to update to the lastest build of N from soak build without unlocking bootloader.
Click to expand...
Click to collapse
I think you'll have to flash Marshmallow as described in this thread. Then sideload the update OTA via recovery.
If anybody is unable to download from FileFactory (like me), and happen to be on the XT1643, download link for the stock ROM is available on this thread. Happy Nougat times!

it ll unlock the bootloader?

TechBurner said:
Hey guys , many people were having problems downgrading their device so i thought i should make this thread.
I have downgraded my phone successfully and this should also work for other variants.
Click to expand...
Click to collapse
I have a locked bootloader and im on soak build NPJ25.75-2.
Do I need to unlock the bootloader to flash this build. Or can I downgrade to MM without unlocking bootloader.
What I want to do is to update to the captured official ota without unlocking bootloader.

i tried to downgrade my XT-1643 from naught soak test but i ended in START UP FAILED. Yours device didn't start up successfully. Use the software repair assistance on a computer to repair your device. Connect your device to your computer to get the software repair assistant....Tried flashing stock mm rom but msg again and again appearing in bootloader

shakti30 said:
i tried to downgrade my XT-1643 from naught soak test but i ended in START UP FAILED. Yours device didn't start up successfully. Use the software repair assistance on a computer to repair your device. Connect your device to your computer to get the software repair assistant....Tried flashing stock mm rom but msg again and again appearing in bootloader
Click to expand...
Click to collapse
It's solved right?

illikkalshahid said:
I have a locked bootloader and im on soak build NPJ25.75-2.
Do I need to unlock the bootloader to flash this build. Or can I downgrade to MM without unlocking bootloader.
What I want to do is to update to the captured official ota without unlocking bootloader.
Click to expand...
Click to collapse
You need to unlock bootloader to downgrade.

TechBurner said:
It's solved right?
Click to expand...
Click to collapse
yes..

As I'm about to downgrade from Nougat to MM, will there be problem related to IMEI??
And can i root MM as usual or are there any complications??
Tnx in advance

TechBurner said:
You need to unlock bootloader to downgrade.
Click to expand...
Click to collapse
Thanks for the reply. If we get full stock rom anyway(if i am ready to wait), can I flash without unlocking bootloader. Is there any chance to get the stock nougat firmware in future

Qualcomm EDL - Could this be the point of entry to Root and/or BL Unlock?

Found this series of blog posts that describe the Emergency Download Mode (EDL) on Qualcomm-based mobile devices.
This thread was made for us to discuss the possibilities around this mode and what benefits could we achieve for our phones.
I have not read them completely yet, but there is a mention of a Secure Boot bypass exploit against a Nokia 6.

xiomi EDL mode does allow to PUSH Twrp after altering the FASTBOOT ROM,
if Nokia is providing Fastboot roms then may be!
it doesn't unlock the bootloader! its just push Twrp so that you can flash modes to disable dm varity and magisk

YasuHamed said:
xiomi EDL mode does allow to PUSH Twrp after altering the FASTBOOT ROM,
if Nokia is providing Fastboot roms then may be!
it doesn't unlock the bootloader! its just push Twrp so that you can flash modes to disable dm varity and magisk
Click to expand...
Click to collapse
I've been trying to find more information on what you commented about xiaomi, could you please provide any additional information or links?
Thanks!

dbpm1 said:
I've been trying to find more information on what you commented about xiaomi, could you please provide any additional information or links?
Thanks!
Click to expand...
Click to collapse
QUALCOM FLASHER (universal)
https://www.youtube.com/watch?v=Koh946ihjAU -----I NEVER USED ,since MI has their OWN Flasher ( MiFLASH)
SINCE I had Xiomi Redmi3s , i EDL it , using FASBOOT ROM ( now miui provides two versions of each rom, recovery Rom and/or FastbootRom
http://en.miui.com/thread-845446-1-1.html
now
see this
http://en.miui.com/thread-276565-1-1.html
tuorial how to change RAMDISK lines, using AIK, for Device REDMI 3s (twrp IDO) and replace signed BOOT image with twrp.img (LOCKED BOOTLOADER) to flash rom with twrp! so that you can flash (from twrp)
1. lazyflasher (tool for xiomi to Switch DM VARITY off)
2. Magisk / Supersu
if you can do something for NOKIA 8
then I will consider it BUYING,! ( I skipped it since i never saw solid piece on XDA / Internet about how to Unlock bootloader! )

Then buy it
YasuHamed said:
QUALCOM FLASHER (universal)
https://www.youtube.com/watch?v=Koh946ihjAU -----I NEVER USED ,since MI has their OWN Flasher ( MiFLASH)
SINCE I had Xiomi Redmi3s , i EDL it , using FASBOOT ROM ( now miui provides two versions of each rom, recovery Rom and/or FastbootRom
http://en.miui.com/thread-845446-1-1.html
now
see this
http://en.miui.com/thread-276565-1-1.html
tuorial how to change RAMDISK lines, using AIK, for Device REDMI 3s (twrp IDO) and replace signed BOOT image with twrp.img (LOCKED BOOTLOADER) to flash rom with twrp! so that you can flash (from twrp)
1. lazyflasher (tool for xiomi to Switch DM VARITY off)
2. Magisk / Supersu
if you can do something for NOKIA 8
then I will consider it BUYING,! ( I skipped it since i never saw solid piece on XDA / Internet about how to Unlock bootloader! )
Click to expand...
Click to collapse

bidhata said:
Then buy it
Click to expand...
Click to collapse
well sir please test and post complete guide about your experience on rooting Nokia 8 (locked BL) and I will
thank you

Found this tutorial on how to make an EDL cable:
http://xiaomitips.com/guide/miui-deep-flash-engineering-cable-solution-to-non-edl-device/

dbpm1 said:
Found this tutorial on how to make an EDL cable:
http://xiaomitips.com/guide/miui-deep-flash-engineering-cable-solution-to-non-edl-device/
Click to expand...
Click to collapse
Yes, it works but on Nokia5 and Nokia6 models only. Most of newer models does not switch to EDL mode. The question is still open: how to downgrade October SP to July to have ability of bootloader unlocking and rooting?

kosmatyj said:
Yes, it works but on Nokia5 and Nokia6 models only. Most of newer models does not switch to EDL mode. The question is still open: how to downgrade October SP to July to have ability of bootloader unlocking and rooting?
Click to expand...
Click to collapse
You have some choice to downgrade
Flash firmware via ost tool,ntool
Flash system via fastboot
If want root... Can use patch boot of trisi... Now nokia 8 more easier

ValKyre said:
You have some choice to downgrade
Flash firmware via ost tool,ntool
Flash system via fastboot
If want root... Can use patch boot of trisi... Now nokia 8 more easier
Click to expand...
Click to collapse
I have no choice because I have updated to Oct. SP, my boot is locked and no possibility to roll back or atleast unlock bootloader. So EDL - is the only way to roll back to happy times with the root, freedom and customizing.

kosmatyj said:
I have no choice because I have updated to Oct. SP, my boot is locked and no possibility to roll back or atleast unlock bootloader. So EDL - is the only way to roll back to happy times with the root, freedom and customizing.
Click to expand...
Click to collapse
At oct security u can't unlock boot with method September???

ValKyre said:
At oct security u can't unlock boot with method September???
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Click to collapse
I already have a key. I had an unlocked boot but I could not install updates later than July. So I locked the bootloader and successfuly updated August, Sept., Oct. Now I cant unlock the boot with the key I have.

kosmatyj said:
I already have a key. I had an unlocked boot but I could not install updates later than July. So I locked the bootloader and successfuly updated August, Sept., Oct. Now I cant unlock the boot with the key I have.
Click to expand...
Click to collapse
Do u try get a new key ?

ValKyre said:
Do u try get a new key ?
Click to expand...
Click to collapse
Why? A new signing algorythm is used in the latest update. It is not supported yet. Nor offficially nor by side sellers

kosmatyj said:
I already have a key. I had an unlocked boot but I could not install updates later than July. So I locked the bootloader and successfuly updated August, Sept., Oct. Now I cant unlock the boot with the key I have.
Click to expand...
Click to collapse
Before July update, YOU got unlock.key,
Then after septemer+ , before Pie-version, did you trie to get the second bootloader-unlock.key? because they changed bootloader? and also I am not sure if they givve away again from oreo and officail app a new unlock.key?
I don't dear to try out, fearing not getting anymore unlock-keys from hmd, need to secure more information.
I am trying to get a new key via official app but it is telling me that google play service isn't installed, although I downloaded open_gapps-arm64-8.0-pico-20190327 and was flashed via twrp and restored to original stock and still the official app is complaining about no play services when I am logged in to google-account inside the phone.
FYI: I donwngraded to oreo 8.0 and for experiment purpose I am trying to test if I will get a new key.

Thank you for replying. My problems are now gone, because I have recieved an official new bootloader unlock key. Now I have 2 keys for old and for new firmwares, so now I can flash anything I want with no fear . I downgraded to Android 7.1.1 and dont want to update any more. Now waiting for custom ROMs.

question about rooting my OnePlus 7 Pro (before I do it)

I have the TMobile us gm1915 op7pro and my current firmware is 9.5.6 gm31cb
If I follow the root guides here on xda and I download OOS latest on their site is 9.5.4gm21aa and I use magisk on my phone to patch the boot.img and then root that way, will it erase my phone to where I have to start from scratch like a new phone?

To root you have to unlock the bootloader first. Unlocking the bootloader wipes everything.

jamesfitzes said:
To root you have to unlock the bootloader first. Unlocking the bootloader wipes everything.
Click to expand...
Click to collapse
So I can't follow this guide?
https://forum.xda-developers.com/oneplus-7-pro/how-to/guide-root-oneplus-7-pro-patched-boot-t3931205
It said to download the latest OOS and then just patch the boot.img then fastboot from it, it didn't say anything about the bootloader?

jamesfitzes said:
To root you have to unlock the bootloader first. Unlocking the bootloader wipes everything.
Click to expand...
Click to collapse
I re-read that article, I see it needs the bootloader unlocked UGH

Question How do I unlock my bootloader on my oneplus 9 LE2115

Hi... I want to unlock my oneplus 9 bootloader so I can install the pixen os but I don't see any guide here to do this.

I literally just sent you those links here. https://forum.xda-developers.com/t/unlock-bootloader-oneplus-9-global-na.4448653/post-86929439
Stop flooding the forum with requests, this isn't a very high traffic place.

Saw your post and your answer wasn't clear... do I need to downgrade to unlock bootloader or do I need to downgrade to be able to install custom roms.
EtherealRemnant said:
I literally just sent you those links here. https://forum.xda-developers.com/t/unlock-bootloader-oneplus-9-global-na.4448653/post-86929439
Stop flooding the forum with requests, this isn't a very high traffic place.
Click to expand...
Click to collapse

ericsimons18 said:
Saw your post and your answer wasn't clear... do I need to downgrade to unlock bootloader or do I need to downgrade to be able to install custom roms.
Click to expand...
Click to collapse
You have to downgrade to be able to use custom ROMs. The ROMs require Android 11 because apparently OnePlus posted incomplete/unusable sources for Android 12.
I don't know if the downgrade package re-locks the bootloader so I would just unlock the bootloader after you're back on OOS11. I had issues trying to unlock the bootloader after doing the OTA to the latest OOS11 so I personally would do it in this order:
1) downgrade to OOS11
2) unlock bootloader
3) OTA to latest OOS11
4) flash custom ROM

This still doesn't work for me. I have downgraded to A11 and still get the error "FAILED (remote: 'Command not supported in default implementation')" The device shows up when I type fastboot devices but continues to return this error when attempting fastboot oem unlock. How do I fix this?

Boot into OOS 11, unlock Developer Options, and switch "OEM unlocking" on. Only then can you unlock your bootloader.
You can also search "oneplus 9 unlock bootloader" on Google.

Question How to flash stock firmware without root ?

hi, anyone has some kind of advice to flash old firmware as the newest have a lot of problems in terms of camera quality ? i don't have rooted my pixel 7 pro ...

Albi Lukaj said:
hi, anyone has some kind of advice to flash old firmware as the newest have a lot of problems in terms of camera quality ? i don't have rooted my pixel 7 pro ...
Click to expand...
Click to collapse
You can install the OTA update from here. Just follow the instructions Google provided at the top of the page and you should be all updated. It's only the full images that require the bootloader to be unlocked.

Just go look up factory images for Pixel phones. You can install firmware right from the web browser. You don't need to have root. Root is optional.

Do you mean without an unlocked bootloader? Root is not the same thing and does not determine how you can flash firmware.
If your bootloader is unlocked, you can use the Android Flash Tool. If your bootloader is not unlocked, downgrading is impossible.
UltimateGamer83 said:
Just go look up factory images for Pixel phones. You can install firmware right from the web browser. You don't need to have root. Root is optional.
Click to expand...
Click to collapse
This only works if OEM Unlocking is enabled in Developer Options.

V0latyle said:
Do you mean without an unlocked bootloader? Root is not the same thing and does not determine how you can flash firmware.
If your bootloader is unlocked, you can use the Android Flash Tool. If your bootloader is not unlocked, downgrading is impossible.
This only works if OEM Unlocking is enabled in Developer Options.
Click to expand...
Click to collapse
so i just need to unlock the bootloader and then i can install old firmware following the procedure ?

Albi Lukaj said:
so i just need to unlock the bootloader and then i can install old firmware following the procedure ?
Click to expand...
Click to collapse
Yes

Albi Lukaj said:
so i just need to unlock the bootloader and then i can install old firmware following the procedure ?
Click to expand...
Click to collapse
@Albi Lukaj, Please be aware that unlocking your bootloader WILL WIPE YOUR DEVICE AND RETURN IT TO STOCK!!!
If that is not preferable, you might try applying the OTA like stated in Post #2, but I am not sure if it works downgrading a version (it probably doesn't)...