yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S9  Questions & Answers] jusx10i:
Hey all,

I appreciate there are lots of threads with similar issues, but they don't quite match.

I have a rooted S9+ SM-G965F with TWRP installed on the bootloader and the PixelExperience9 ROM have installed from https://xdaforums.com/project-treble/trebleenabled-device-development/9-0-pixelexperience-p-t3833294

I am wanting to try : https://www.xda-developers.com/excl...msung-experience-10-on-the-samsung-galaxy-s9/

However, when I boot into Odin, load all of the files and hit start, I get the following returned:

<ID:0/014> Added!!

<ID:0/014> Odin engine v(ID:3.1301)..

<ID:0/014> File analysis..

<ID:0/014> skip file list for home binary

<ID:0/014> apdp.mbn

<ID:0/014> msadp.mbn

<ID:0/014> persist.img.ext4

<ID:0/014> dqmdbg.img.ext4

<ID:0/014> carrier.img.ext4

<ID:0/014> Home Binary Download

<ID:0/014> Total Binary size: 5249 M

<ID:0/014> SetupConnection..

<ID:0/014> Initialzation..

<ID:0/014> Get PIT for mapping..

<ID:0/014> Firmware update start..

<ID:0/014> NAND Write Start!!

<ID:0/014> SingleDownload.

<ID:0/014> abl.elf

Then, nothing. The phone doesn't really start to write and I get zero progress indication. I've left it running in excess of an hour.

In download mode, I can see

FRP Lock: Off

OEM Lock: Off

Secure Download: Enabled

If anyone has any suggestions what I can do, I would certainly try. One thing to note is that OEM Unlock is missing in developer options?!? So maybe this is a hangover from the samsung problem everyone else has?

ta,

J
[Samsung Galaxy S9  Questions & Answers] jusx10i:
I'm dense

Maybe, if I read the write-up, I would have realised that the image was for snapdragon, not Exynos :)

I'll leave this here in case anyone else tries to brick their machine without RTFM.

ta,

J
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
This doesn't require unlocked bootloader

I was having issues with android pie like i was not able to make carrier video calls etc. due to google duo integration into phone app.

So i needed to downgrade my phone from pie to earlier version of android oreo (before july 2018 security update)

Here is how i did it

Download Rollback WW 2.13B Android 8.1 April 2018 (B2N-213B-0-00WW-B05-update.zip)

https://www.androidfilehost.com/?fid=890278863836296092

credit [MENTION=5618262]edwaine[/MENTION]

Copy the downloaded file to your sd card and save it where u can easily access it.

Enable usb debugging

download adb drivers

Try installing it if its shows timestamp error and downgrading not possible then follow the instructions below:-

For going into fastboot mode, either press Power+Volume down or type adb reboot bootloader

credit: [MENTION=8839962]Rowddyronnie [/MENTION]

First check active slot, by

going to fastboot mode and type fastboot getvar current-slot

Then change your active slot, type fastboot --set-active=a or fastboot --set-active=b according to your current slot.

Then go to recovery mode by pressing volume up+ power button

select sideload from sd card . Install the ota file downloaded from the first link. Restart your phone.

it will take some time to load for first time. But it will work

PS: Do a fresh install. I wiped all the data to factory mode then installed the OTA and i have successfully downgraded from Pie to oreo april 2018. See screenshot attached.

Hope it will help you.

Kindly confirm if it works for you too.
[Nokia 7 Plus Guides, News, & Discussion] no3no3:
without bootloader unlock?

i wanna rollback oreo.

is :good:it without bootloader unlock??
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
yes there is no need of unlocked bootloader
[Nokia 7 Plus Guides, News, & Discussion] edwaine:
Nice! Glad I've helped. Just a question though, what Android Pie version are you in before downgrading back to oreo? Stable or Developer Preview?
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
Official android pie stable version.
[Nokia 7 Plus Guides, News, & Discussion] edwaine:
Thanks for the info
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
Any success other than me????
[Nokia 7 Plus Guides, News, & Discussion] antoniotrodrigo:
i tried by only put the file in microsd and then update by sd but

''E: Update package is older than the current build, expected a build newer than timestamp 1537621412 but package has timestamp 1529296497and downgrade not allowed.''
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
First check active slot, by

going to fastboot mode and type fastboot getvar current-slot

Then change your active slot, type fastboot --set-active=a or fastboot --set-active=b according to your current slot.

Then go to recovery apply the update
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
First check active slot, by

going to fastboot mode and type fastboot getvar current-slot

Then change your active slot, type fastboot --set-active=a or fastboot --set-active=b according to your current slot.

Then update ota
[Nokia 7 Plus Guides, News, & Discussion] Rajeev:
Not working. Downgrade not allowed error.. :D
[Nokia 7 Plus Guides, News, & Discussion] antoniotrodrigo:
didnt work
[Nokia 7 Plus Guides, News, & Discussion] no3no3:
is it work?

yes!!!

thank you very much !!

its work!!!
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
Congratulations.....
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
What was ur current active slot? What android version are you on?
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
Are you installing update via sd card? What was your current active slot? what android version are you on? Does it give u timestamp error? did u change slot
[Nokia 7 Plus Guides, News, & Discussion] antoniotrodrigo:
was A and changed to B, timestamp error, and after changed B to A, timestamp error again, Android 9 official
[Nokia 7 Plus Guides, News, & Discussion] Rajeev:
Yea. Did all steps. Tried it for a friend via TeamViewer. Not for me. As i have unlocked bootloader so i don't care about rollback zip. I have OST La for life saving..

And tried all way. Did not works. Even after factory reset. He is on stable pie dude.

Tried from sd card , adb sideload command all giving Timestamp error.. Downgrade not allowed error
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
It worked for me have u enabled oem unlocking??

I did the above steps but when i was giving sideload via adb it gave error like kitkat version flashing not allowed. So i went to recovery mode and flashed via sd card. Worked for me.
[Nokia 7 Plus Guides, News, & Discussion] bebotette:
download file says it's for ta-1046. Does this work on ta-1062 ww? Or do you have something that works? Thank you
[Nokia 7 Plus Guides, News, & Discussion] M_w_B:
Sorry for my late reply, I was on the latest patch of Pie. I did the unlocking at the end of Januari from a guy called Narrender at the website of TechMesto.

They keep very close contact and do everything they can to get your phone unlocked (even when my pc froze several times..). It's definitly worth it.
[Nokia 7 Plus Guides, News, & Discussion] amr_virusx:
how can we contact him to unlock bootloder
[Nokia 7 Plus Guides, News, & Discussion] M_w_B:
https://www.techmesto.com/buy-nokia-bootloader-unlock-key/

I am not sure if I am allowed to re-direct, but if you follow this page you will be able to unlock your bootloader. This also counts for later builds of Pie. It could cost you at around $8.

Good luck.
[Nokia 7 Plus Guides, News, & Discussion] omkolte17:
[MENTION=4037361]mukulsharmaknh[/MENTION] can I downgrade ?
[Nokia 7 Plus Guides, News, & Discussion] reefuge:
just used this service boot loader downgrade, boot loader unlock and downgrade to 8.1.0 (to allow Fitbit to sync as broke on pie...) from 9.0 took around 30 mins and cost GBP £6.12 ($8.00) - highly recommended
[Nokia 7 Plus Guides, News, & Discussion] amr_virusx:
me too i done it with him

for just 8 usd

i was on the last android update
[Nokia 7 Plus Guides, News, & Discussion] spaha-bih:
I have the same question, is it possible now with the February security patch? Is the procedure still the same as it is on the first page?
[Nokia 7 Plus Guides, News, & Discussion] singhnsk:
No. You cannot use this method to downgrade anymore :)
[Nokia 7 Plus Guides, News, & Discussion] spaha-bih:
But it was so simple :(
[Nokia 7 Plus Guides, News, & Discussion] AlahmadPR:
Chaging Slot phone goes white screen & unresponsive

someone told me that after flashing this way may mess up slot

as

im facing white screen issue after changing from current slot B to A

---------- Post added at 12:10 PM ---------- Previous post was at 12:06 PM ----------

would you help me in this regard :(
[Nokia 7 Plus Guides, News, & Discussion] zmahmud:
Download mode to recovery mode

How did you enter download mode to recovery mode in nokia 7 plus?
[Nokia 7 Plus Guides, News, & Discussion] 2gg1:
Does it still work after last update?
[Nokia 7 Plus Guides, News, & Discussion] k3dar7:
howto is in #1

btw: phone must be off and usb cable connected to phone and pc fir hotkey activation of fastboot
[Nokia 7 Plus Guides, News, & Discussion] sparking111:
Help For Android Q

hello!

Thanks for your work and sharing all this

I'm currently on Android Q, and I tried this method with both android pie rom ( B2N-322C-0-00WW-B01-update.zip )

and oreo April and august update one by one but it gives me timestamp error...

I changed the active slot as well.

Is there any way I can downgrade it, Please Help
[Nokia 7 Plus Guides, News, & Discussion] poLeen25:
Hi Is there a way in downgrade from android 10 to Pie.

android 10 has a lot of bugs.

It automatically restarts.

Thanks in advance.
[Nokia 7 Plus Guides, News, & Discussion] 2gg1:
Is it safe? Can i unlock bootloader after that easilier? Does it still work after last update? Please answer.:eek:
[Nokia 7 Plus Guides, News, & Discussion] Hades_God:
What's the command to install the zip file directly from PC?
[Nokia 7 Plus Guides, News, & Discussion] Andrex27:
Does anyone know if this method works also with TA-1055?
[Nokia 7 Plus Guides, News, & Discussion] TECHSOLVER:
How to downgrade nokia 8.1? can you teach me pls...
[Nokia 7 Plus Guides, News, & Discussion] gennady221184:
enable recovery on an inactive slot. There is an Android 8.1 September. After that you can install beta version 9 and roll back to April. who immediately rolled it back was installed before upgrading to stable 9 was a beta version.
[Nokia 7 Plus Guides, News, & Discussion] slmxdaa:
Ur phone was TA 1046??
[Nokia 7 Plus Guides, News, & Discussion] Devuma86:
Awesome.... Did it.

Tried harder with 4 different firmwares but was failed then tried this method and was successful, it took long time to understand but had done it. Many thanks dear........:o
[Nokia 7 Plus Guides, News, & Discussion] slmxdaa:
So my ques is lets assume we downgrade to oreo

Then wont we use the pie?
[Nokia 7 Plus Guides, News, & Discussion] gennady221184:
a slide down to oreo makes it possible to reinstall 9 and return the gestures that many on ta 1062 lack in the pie
[Nokia 7 Plus Guides, News, & Discussion] antoniotrodrigo:
Supported API: 3

-- Install /sdcard/B2N-213B-0-00WW-B05-update.zip ...

Finding opdate package...

Verifying update package...

Update package verification took 20.1s (result 0).

Installing update...

E: Update package is older than the current build, expected a build newer than timestamp 1534159529 but package has timestamp 1529296497 and downgrade not allowed.

E: Downgrade package must have a pre-build version set, not allowed.

Setp 1/2

Error applying update: 51 (Errorcode: :kPayloadTimestampError)

E:Error in /sideload/package.zip (Status 1)

Installation aborted.

E: failed to mount /logfs: Invalid argument

E: failed to mount /logfs: Invalid argument
[Nokia 7 Plus Guides, News, & Discussion] slmxdaa:
So if I go back to oreo 213 B april patch

Then stable pie can be installed agian??
[Nokia 7 Plus Guides, News, & Discussion] daavid1995:
sadly not working for me but thanks anyway.
[Nokia 7 Plus Guides, News, & Discussion] antoniotrodrigo:
i get u, i really want Oreo back too, feelsbad
[Nokia 7 Plus Guides, News, & Discussion] bebotette:
HELP! Fastboot doesn't detect my phone

I am already in the fastboot mode (download mode as shown on my screen) on my Nokia 7 Plus.

but when I type "fastboot getvar current-slot" I only get a '<waiting for device>' and it's going on forever.

I have properly installed drivers. ADB can detect my phone just fine. I have no problems with ADB. But why for this fastboot I can't? I've tried more than ten times already.

I checked device manager, and there's one 'Android' device under 'other devices' that has an exclamation point.

What kind of driver does it require? Please let me have a link.

I also downloaded this driver: https://developer.android.com/studio/run/win-usb, but how do I install it? Sorry for being an idiot here. Thanks a lot
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
Can you see this when you connect your phone to pc in fastboot mode?? If not then install drivers from cdrom that comes when u connect your phone to pc it contains drivers don't worry
[Nokia 7 Plus Guides, News, & Discussion] bebotette:
Thanks for that response. Really helped. So I got the same driver/device now on my device manager after driver installation. But still same problem: <waiting for device>. I have attached some images showing my successful driver setup. So what seems to be the problem now? https://imgur.com/a/SJUcGgX
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
Can u show command prompt screen shot u r applying and the folder in which adb apps are there??
[Nokia 7 Plus Guides, News, & Discussion] bebotette:
Actually no need because you gave me the idea that the adb apps are the problem. So I tried to get a good adb folder with complete apps and finally the fastboot worked well. I was able to switch my slots from 'b' to 'a' successfully. However, when I was already loading the zip file that you linked to, I get this:

Installing update...

Step 1/2

Error applying update: 51 (ErrorCode::kPayloadTimestampError)

E: Error in /sideload/package.zip

Installation aborted.

E:failed to mount /logfs: Invalid argument

E:failed to mount /logfs: Invalid argument
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
Did u tried installing via sd card? Which android version are you on??
[Nokia 7 Plus Guides, News, & Discussion] bebotette:
tried both adb sideloading and sd card loading. Both same error. This latest android pie stable I got from: https://xdaforums.com/nokia-7-plus/development/ota-nokia-7-plus-ota-links-t3818774

How do I revert this?
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
change slot to inactivate one then install go to recovery and install ota that you want to downgrade to
[Nokia 7 Plus Guides, News, & Discussion] bebotette:
My current slot was B, so I switched to A. Double-checked. Then I tried to install ota. First through adb. Wasn't successful. Then tried through SD card. Did not work.

Now I went back to slot B. And now my phone is messed up :(
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
https://android.googleapis.com/pack.../52193f24d82456b9a365417bab0f357fa20de741.zip

Try this one for yourself
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
did it work?
[Nokia 7 Plus Guides, News, & Discussion] bebotette:
thanks for the suggestion but I didn't try it anymore. I tried two different OTAs yesterday and switching from slot a to slot b (and vice versa) made my phone practically unusable. Ultimately, I just wiped my device and did a fresh start using this unstable android pie stable (which isn't stable at all for TA-1062) with tons of issues. I don't wanna risk it anymore (I just got this phone a couple of months ago). Perhaps the best thing I can do is to really wait for the official one to show up, the one which is really designed for TA-1062 (or am I hoping for nothing? IDK.)

No offense in any way. You've been very helpful. It's just that it went the other way when I tried it on my phone. Thanks.
[Nokia 7 Plus Guides, News, & Discussion] slmxdaa:
To all the 1062 users I just want 2 know which version of Android Pi beta have the navigation gesture
[Nokia 7 Plus Guides, News, & Discussion] noobAKO:
I tried 2 rollback package and seems that only the august one works
[Nokia 7 Plus Guides, News, & Discussion] dexterboon:
thanks bro .. it worked for me . for the first time if the current slot 'a' doesnt work and change the current slot to b , then it will work

bro .. bro ! again it is asking for me to system update while setup , how to skip that step ?
[Nokia 7 Plus Guides, News, & Discussion] uraycity:
How to skip the update installation the first time?
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
Go to settings-) system-) about-) tap 7 times on build number then go back to developer settings under system there will be automatic updates switch it off.

If u are getting system update during first start after downgrading then dont enable wifi skip the step.

And then put in all your google account and all
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
For skipping the update installation first time click on fresh phone / new phone dont put in your email id / connect to wifi. Start as a new phone. This is the way to skip the update option. After that go to accounts add your gmail account. Connect to wifi etc
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
Check the screenshots and click on start a fresh phone then dont use any network for setup then continue. U will skip update request. Thanks
[Nokia 7 Plus Guides, News, & Discussion] dexterboon:
i tried it again , but

iam not getting option to skip wifi .. please reply and try to help me bro
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
Dont insert the sim card and follow the screenshots
[Nokia 7 Plus Guides, News, & Discussion] uraycity:
this does not work :(

continue without update is impossible: (
[Nokia 7 Plus Guides, News, & Discussion] Rubens95:
I installed pie, if I want to roll back to latest Oreo build can I simply swap the active partition? If I understood well pie has been installed in parallel with Oreo, am I right?
[Nokia 7 Plus Guides, News, & Discussion] YourTheBest:
Why do you wanna guys revert to Oreo?

Did you get OTA the official way when you getted Android P?
[Nokia 7 Plus Guides, News, & Discussion] k3dar7:
Look to first post...
[Nokia 7 Plus Guides, News, & Discussion] shailinder:
Which part, download link? Or am I missing something
[Nokia 7 Plus Guides, News, & Discussion] k3dar7:
Whole part, special part about switching a/b slot
[Nokia 7 Plus Guides, News, & Discussion] shailinder:
Got it and done that. Now, I have downgraded to Oreo but immediately it is giving me an update of 1431 MB. That way I will again be forced to install Pie which I don't want. What to do?

---------- Post added at 09:52 PM ---------- Previous post was at 09:33 PM ----------

True. It is impossible to skip first update. I have 1471 MB file downloading, already at the step 2 or 2. Lets see what happens:confused:
[Nokia 7 Plus Guides, News, & Discussion] shailinder:
Alright. After initial hiccups, now I am on Oreo but with April security patch because I downloaded the link or ROM from Nokia site. I can download August or September security patch (if available) but how do I install them?

Any tip...

Thanks
[Nokia 7 Plus Guides, News, & Discussion] kishan071:
Im stuck in < waiting for device >, Tryed changing the usb ports but nothing worked.
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
Please check your adb drivers are installed properly.
[Nokia 7 Plus Guides, News, & Discussion] kishan071:
Got solved by running from command prompt, there is some issue with powershell I guess. But no luck switched to slot b from a but still got timestamp error ?
[Nokia 7 Plus Guides, News, & Discussion] pujolsk:
It is possible. Just activate the phone without connecting it to wifi network, and disable automatic updates in developer settings...
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
Firstly remove your sim card and then wipe your phone data then switch on dont connect to wifi start as a fresh phone
[Nokia 7 Plus Guides, News, & Discussion] SaveMyNokiaplz:
Does anyone mind running me through the process? Im new to using ADB . I also don't have an SD card, so am I Able to use ADB to send the update through to my phone . The first time I tried I got the timestamp error, where do I go from there ?

thanks
[Nokia 7 Plus Guides, News, & Discussion] Grinyaha:
My 7plus after rollback to 8.1 stopped in screen logo NOKIA over 1 hour. I tryed enter to recovery menu, but can't. What to do?

UPD. All ok, enter in recovery, wipe.
[Nokia 7 Plus Guides, News, & Discussion] Guslow:
Has anybody with TA-1062 had success rolling back with this method?
[Nokia 7 Plus Guides, News, & Discussion] Saswata Chakraborty:
This is what happens when you just find a comment (screenshot attached), copy it and create a thread of it without even having complete knowledge or information. That's why so many people are asking for another method saying it doesn't work for them. I know that 2nd method which I never had to tell anyone as the 1st method worked for the person who that comment was meant for. But guess what! I'm not telling anyone as I see somebody else has been given credit for this method who probably didn't even know how to check the active slot (forget about switching) before I posted that comment. Anyway, it doesn't matter now as I am never going to to tell even if the OP rectifies his mistake. It's too late and I am not really happy about the way a person was given credit who probably didn't even know any of these before.
[Nokia 7 Plus Guides, News, & Discussion] shiftybugger:
Dude! Ganking someone else's work or know-how is just plain scummy, so I understand how you feel... But please, please, please, there are a few of us who would be eternally grateful for your help.

In my situation, my phone won't connect to one of my car's Bluetooth at all. The other one connects but I can't make calls because the car thinks that the phone is out of service. I am hoping a reversion helps.
[Nokia 7 Plus Guides, News, & Discussion] divvykev:
Are there any moderators on this group. It's a mess. People posting the same question on multiple threads, threads open covering the same stuff and then this which I agree is totally unfair.

XDA used to be the goto place for info and help. Getting more like Facebook every day.
[Nokia 7 Plus Guides, News, & Discussion] k3dar7:
btw: you not realy first who post (1.october 2018) this method ;)

(22.september 2018) https://www.techmesto.com/guide-unlock-bootloader-nokia-android-phones/

and i read also before about need switching slot while device is A/B...
[Nokia 7 Plus Guides, News, & Discussion] Guslow:
After changing from A to B my phone rebooted and now is stuck at the Nokia logo

Please help!!!!
[Nokia 7 Plus Guides, News, & Discussion] cristi.blidariu:
for me it work,here what i do:

copy the downgrade file to adb and fastboot folder,change slot in my case form b to a,then sideload using adb(not sd card),boot to recovery and wipe data factory reset,now i am on oreo 8.1

ps/i was on official pie

---------- Post added at 10:15 AM ---------- Previous post was at 10:09 AM ----------

work for me,thanks :o
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
did u flash the zip file?. If yes then do wipe data flash the zip file again. It will work.

If u havent flashed zip file then change it back to a
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
Congratulations
[Nokia 7 Plus Guides, News, & Discussion] Guslow:
I was finally able to put the phone into fastoboot and I was able to rollback!

Thanks!!!
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
Congratulations bro
[Nokia 7 Plus Guides, News, & Discussion] mukulsharmaknh:
Bro i by error gave credit to someone else.

Updating it.