yashsingh1/xdaforums huggingface dataset:
[Xiaomi Mi A1 Guides, News, & Discussion] hycraig:
Start the tutorial again from the beginning but in TWRP only flash boot and efs thats what i did and then it worked fine
[Xiaomi Mi A1 Guides, News, & Discussion] stelariusinfinitek:
It's fine, I got this error too. After you flash boot and EFS, reboot to bootloader (fastboot) and flash March again.
[Xiaomi Mi A1 Guides, News, & Discussion] pradhyu69:
I repeated the whole process 2 times hoping to get IMEI & Signals back but still No signals and it shows "0' when dialing *#06# for IMEI.

Now I'm downloading pie fastboot rom v 10.0.4.0 to Check if thats work.
[Xiaomi Mi A1 Guides, News, & Discussion] hycraig:
im not sure then as i had a problem the first time with twrp not seeing the backup folder to restore but started it all again and it seemed to work without any other issue.
[Xiaomi Mi A1 Guides, News, & Discussion] pradhyu69:
Nothing works....tried restoring IMEI manually but still not working. Also tried with PIE fastboot ROM..
[Xiaomi Mi A1 Guides, News, & Discussion] yarenersonmez:
I think this way not working after February update
[Xiaomi Mi A1 Guides, News, & Discussion] stelariusinfinitek:
I don't understand how you lost your IMEI. I mean, I went directly from Pie to Oreo and I lost the signal, but not the IMEI. If you have 00 after your IMEI, that doesn't mean you lost it. Last time when I downgraded it was a bit more difficult and time consuming, but it worked in the end. Make sure you use MiFlash. What worke for me was flashing March, restoring the boot and EFS and then going directly in fastboot and reflashing March. I got my signal back. If you try to manually restore your IMEI or other things, then it will be worse to recover.

Yes, it works. I tested it.
[Xiaomi Mi A1 Guides, News, & Discussion] pradhyu69:
Tried every method that's available but still it's not working.Even local repair shop couldn't do it. Now service centre is last option. Device is out of warranty so depends on cost otherwise I'll get new phone.:silly:
[Xiaomi Mi A1 Guides, News, & Discussion] TopTopTopTop:
Same goes for me. Thank you for this replay I managed to downgrade.

Just flashed V9.5.9.0.ODHMIFA (let it boot loop)+put it fastboot mode+ using the adb to install the twrp and restore the rom files (just make sure you move only the last backup folder so it could be restored easily)+reboot into fastboot again via twrp+flash the V9.5.9.0.ODHMIFA again. work :)
[Xiaomi Mi A1 Guides, News, & Discussion] Daromius:
Ok so, I'm a total noob at this, I know how to unlock bootloader, access fastboot and flash stuff into the phone, but that's it.

Are there any other requirements before starting this? do I need to install TWRP beforehand? which files should I backup to avoid total brick in case I mess up?

I just want a clean install of Oreo to fix my signal, because I can't call since Pie came out, so I appreciate any help xD
[Xiaomi Mi A1 Guides, News, & Discussion] TopTopTopTop:
Just flashed V9.5.9.0.ODHMIFA (let it boot loop)+put it fastboot mode+ using the adb to install the twrp and restore the rom files (just make sure you move only the last backup folder so it could be restored easily)+reboot into fastboot again via twrp+flash the V9.5.9.0.ODHMIFA again. work

*In my case I only flashed the V9.5.9.0 rom, because the way that showed in this tutorial (with the two different roms) made my phone bootloop... and you don't need the twrp before the first flash, you install it after the first flash. You basically 1.FLASH STOCK ROM V9.5.9.0 (2. download and use the adb command showed here that boot your phone into TWRP, transfer the backup and restore it, boot your phone to fastboot. 3) Flash stock rom again. That worked for me 100%.
[Xiaomi Mi A1 Guides, News, & Discussion] Daromius:
I tried this and it worked, I even got to install Oreo 8.1 without bootlooping, so thank you!
[Xiaomi Mi A1 Guides, News, & Discussion] enrique_fire:
Volte calls are getting disconnected after first ring. Plz help
[Xiaomi Mi A1 Guides, News, & Discussion] Eduardo Leonel:
To the guys who failed to downgrade without losing the IMEI or SIM Card. I tried everything and nothing worked. I finally found an effective way.

Go back to the Pie and back up the TWRP. In addition, if you know, also extract the IMEI via QFIL.

So here's the secret: Instead of lowering it to the Oreo, lower it to the Nougat. Then log in to TWRP and restore the PIE backup and, if it does not work, restore Qfil as well.

Okay, your Mi A1 is all working. Backup again for Nougat security. Then do the Oreo flash update.
[Xiaomi Mi A1 Guides, News, & Discussion] pradhyu69:
Finallly phone fixed by Mi service centre they took 10 days to fix this..

But now i have wired problem. My sim slots are now changed. Alot 1 sim shows as sim 2 and slot 2 sim shows as sim 1.
[Xiaomi Mi A1 Guides, News, & Discussion] kevin mitnick:
I had tried, but still 0 imei.. :(
[Xiaomi Mi A1 Guides, News, & Discussion] orma1:
I did the same and it worked. also by going to system update I was able to update to 8.1 oreo November, pie didn't show up.

after updating you can go to developer settings and disable automatic system updates to make sure you stay at this version.

I did it with two Mi A1s successfully one from pie February update and one from January update.
[Xiaomi Mi A1 Guides, News, & Discussion] Francygal2001:
hi I am also willing to make a downgrade, I am on Android pious stock, I would like to go back, in the meantime I would like to know what is convenient, nougat or oreo, then to avoid bootloop and loss of anything, for example imei, what should I do?
[Xiaomi Mi A1 Guides, News, & Discussion] orma1:
For me I did the following and it worked, I did it from stock pie February update if I'm not mistaken, so maybe it will work for you (note: you will lose your data so make sure to bakcup):

1) make sure your bootloader is unlocked and USB debugging is enabled. after go to fastboot mode.

2) flash Fastboot March update from OP via MiFlash (using clean all option). after this step my phone booted but with no imei and the Sim didn't work.

3) After boot I enabled USB debugging and went back to fastboot mode.

4) Using adb folder from OP I used the command fastboot boot oreo.img to boot into twrp

5) after twrp is loaded I switched the twrp folder like in step 6 in OP.

6) after trying to restore my twrp didn't recognize the partition, so what I did was create an efs backup, deleting the files from the folder created, and moving the files from OP's backup folder to the new folder and then restoring the backup.

7) then you need to go back to fastboot mode and flash Fastboot March update from OP again via MiFlash (choose clean all option if you want to keep the bootloader unlocked, or clean all and lock if you want to lock the bootloader)

8) phone should boot now and with the right imei as written on the phone's box.

9) you can use system update to update to 8.1 November if you want (just be careful to not update to pie again).

10) make sure to disable Automatic system update in Developer options to make sure your phone will not update to pie again.
[Xiaomi Mi A1 Guides, News, & Discussion] Francygal2001:
once with TWRP having android p stock I tried flashing a custom rom with android 8.1 and it worked, does it mean something?
[Xiaomi Mi A1 Guides, News, & Discussion] orma1:
I guess the only way to check is to try to downgrade and to see if your phone has IMEI or not.

If your phone loses its IMEI the steps I suggested should hopefully work.
[Xiaomi Mi A1 Guides, News, & Discussion] Francygal2001:
if I lose IMEI can I recover them by installing Android pie?
[Xiaomi Mi A1 Guides, News, & Discussion] orma1:
I'm not really sure if it will work, but if you use the steps I mentioned you will be able to recover your IMEI

and get the phone back to normal while also downgrading back to 8.1 oreo. as I mentioned flashing oreo via

Mi flash should result losing the IMEI, but after using the twrp backup from OP IMEI should go back to normal

and should match the one you had before. (you can check afterwards by looking at your phone's box).
[Xiaomi Mi A1 Guides, News, & Discussion] Francygal2001:
and if the method you're telling me doesn't work, can I recover IMEI by reinstalling Android pie?
[Xiaomi Mi A1 Guides, News, & Discussion] orma1:
I have not tried, but according to this thread: https://xdaforums.com/mi-a1/help/downgrade-pie-official-stock-beta-to-t3878056

the OP there has updated to pie and tried to go back to oreo, got bootloop, then flashed pie, and his phone worked.

so going back to pie should work. the only thing is, he has done it from an older security patch of pie. but it should work as I don't think a lot has changed

it is only a security patch. Good luck!
[Xiaomi Mi A1 Guides, News, & Discussion] Francygal2001:
if i follow the simple method, it would be to boot twrp, flash the bachup, go fastboot and flahare with miflash tool android 8.0 patch of may, should work right? because I have already seen a video where one has done so and it worked, but I don't know if it has IMEI intact
[Xiaomi Mi A1 Guides, News, & Discussion] orma1:
I recommend that you follow the steps I suggested as we know for sure that we get the IMEI back and the files needed for the steps are in OP. also you will be able to update to latest 8.1 November.
[Xiaomi Mi A1 Guides, News, & Discussion] sunny_sall:
Flash Fastboot means flash the file with Mi Flasher and also not clearly understand the 4th step
[Xiaomi Mi A1 Guides, News, & Discussion] cherryb8844:
I did downgraded my mia1 without any single thing lose no bootloop either.

I just downloaded march security firmware and TWRP backup that provided by OP put backup into TWRP backup folder fastboot boot into TWRP took backup of my efs and boot of current ROM (pie) in external sd card flash OP TWRP efs and boot then reboot into bootloader and flash march 2018 firmware via miflash tool I select clean all.

My device booted fine then I updated to November security patch. device work fine no IMEI gone no network lose everything normal like before I used Oreo 8.1

thanks OP and people who discovered this thing and experiment on their device first.
[Xiaomi Mi A1 Guides, News, & Discussion] Rashad79:
It's working perfectly. Thank you so much

---------- Post added at 04:14 PM ---------- Previous post was at 04:13 PM ----------

Your method is working perfectly as well. Thanks
[Xiaomi Mi A1 Guides, News, & Discussion] Marcos OC:
thanks, im now downloading november OTA, all network is working.

i reflashed march update after putting your efs backup on 8.0 and the phone is back to be good, pie is such a piece of crap omg i had the phone in a drawer for 2 months, glad to be back on gcam.
[Xiaomi Mi A1 Guides, News, & Discussion] Vishal21896:
I downgraded to Oreo 8.1 successfully without loosing IMEI but 4G,3G is working only on sim slot 1. Sim 2 is picking only 2g signals . Normally before pie one sim supported 4G and other supported 3G. But after downgrading only sim 1 supports 4G/3G while sim 2 to picks only 2G signals. Any solutions ?

TIA
[Xiaomi Mi A1 Guides, News, & Discussion] Vel-San:
To anyone who finds this pretty complicating or MiFlash isn't working for them, try my method here. It worked flawlessly for me and i didn't even use userdata ( in case your going to try and flash MIUI )

Post Here

I DO NOT HOLD RESPONSIBILITY FOR ANYTHING THAT HAPPENS TO YOUR DEVICE.
[Xiaomi Mi A1 Guides, News, & Discussion] cahyo_diegol:
help me ... i lost imei
[Xiaomi Mi A1 Guides, News, & Discussion] Rashad79:
Follow the instructions in the first page and it will return. Or use the following steps

I already did the second way and it's working perfectly for me.
[Xiaomi Mi A1 Guides, News, & Discussion] cahyo_diegol:
what by repeating the steps above can restore my lost IMEI ????
[Xiaomi Mi A1 Guides, News, & Discussion] Rashad79:
If you're already did the steps and now you have stock Oreo in your phone then make sure to install November firmware through TWRP, you can find it here "https://drive.google.com/file/d/12m7mehiNpf0Ez2xeWXp2RifupJvjXD_o/view"

and restore TWRP backup mentioned in OP in first page. That's will bring your IMEI back.
[Xiaomi Mi A1 Guides, News, & Discussion] cahyo_diegol:
dead link can't find file
[Xiaomi Mi A1 Guides, News, & Discussion] Rashad79:
https://drive.google.com/file/d/12m7mehiNpf0Ez2xeWXp2RifupJvjXD_o/view
[Xiaomi Mi A1 Guides, News, & Discussion] cahyo_diegol:
after installing this, continue to restore efs, boot, modem or have to repeat all steps by steps ???
[Xiaomi Mi A1 Guides, News, & Discussion] Rashad79:
No just restore the TWRP backup
[Xiaomi Mi A1 Guides, News, & Discussion] cahyo_diegol:
efs or boot the same ??
[Xiaomi Mi A1 Guides, News, & Discussion] Rashad79:
Both
[Xiaomi Mi A1 Guides, News, & Discussion] cahyo_diegol:
if I flash back to the pie does my IMEI come back ... I have an efs backup patch in January
[Xiaomi Mi A1 Guides, News, & Discussion] Rashad79:
That backup for stock Oreo mate, I told you to follow the steps in my previous comment to get IMEI back.
[Xiaomi Mi A1 Guides, News, & Discussion] cahyo_diegol:
When I booted, I returned my screen to black blank, nothing ...

I am in November stock

So, what should I do
[Xiaomi Mi A1 Guides, News, & Discussion] iguinhu:
I have a backup of a custom rom 8.1 oreo (including the EFS folder). Can I follow these steps but using my backup?
[Xiaomi Mi A1 Guides, News, & Discussion] Ni9e.:
Successfully downgraded from pie june 19 to Oreo November 2018 and it really feels good to be back to pie.

First i flashed march oreo firmware through mi flash tool and when i restarted my phone booted to oreo march normally and didnt get bootloop but signlas kept dropping. Then i restored twrp backup provided in this post after that i flashed November oreo update through mi flash and when i booted it all went fine. No bootloops no signal drops everything just working fine and flawless!! Thank you
[Xiaomi Mi A1 Guides, News, & Discussion] alda.cerny:
thank you very much for the tutorial, great work
[Xiaomi Mi A1 Guides, News, & Discussion] XtraWater:
This tutorial worked for me too. But some things didn't work. Fingerprint sensor worked, but got not recognized by any app and lockscreen. Creating a backup by TWRP was possible (even with some event and modem partition size calculation errors) but after restoring the backup the phone shut down as soon the UI appeared.

I tried different versions of TWRP and started from scratch again (mi flash tool).

The only thing what finally saved my phone was to flash the persist.img.

I followed the instructions and downloaded the .img from here: https://xiaomifirmware.com/guides-and-tips/restore-persist-partition-xiaomi-mi-a1/

May be this is helpful to someone and saves him hours of try&error.

Edit: I tried several pie versions. Installed riru core.... I need Xposed Edge. I couldn't run Xposed Edge properly on pie. Plus some other things I didn't like I wanted back to Oreo. There, everything I need works flawless.
[Xiaomi Mi A1 Guides, News, & Discussion] Amykhullar:
No network issue :( then i flashed pie modem and network is back but no audio in calls. Please help me
[Xiaomi Mi A1 Guides, News, & Discussion] Kog4000:
​

Does this work on frp locked devices?
[Xiaomi Mi A1 Guides, News, & Discussion] TheUltimateOne:
take a look here to fix the voice problem

https://xdaforums.com/mi-a1/how-to/how-to-downgrade-mi-a1-android-pie-to-t4046513
[Xiaomi Mi A1 Guides, News, & Discussion] Bombastc:
Never in my life have i encountered such a POS device. Unfixable...! Why, because the Chinese who made it decided that they would lock the EDL access and grant it only to a few official service shops.

NEver, ever again in my life will I buy a Chinese device again!

EDIT: https://www.youtube.com/watch?v=KpLWPv5malQ

Here, only this worked.

Don't buy Xiaomi again, you've been warned lol
[Xiaomi Mi A1 Guides, News, & Discussion] FSLRMH:
Thank you that was helpful and I'm back from latest pie to latest november oreo
[Huawei Mate 10  Questions & Answers] Platinum1986:
Hello everyone ! :cool:

I noticed that my Mate 10 (ALP-L29) does "white noise" when i hear voices at low volume with earbuds but it doesn't when i use my headphones. I read that there is some sound mods with magisk to solve this issue but i was wondering if there is an other way because i can't root my phone at the moment due to my firmware version [8.0.0.138(C636patch01)]. If the issue comes from my earbuds i can buy others but i'd like to have feedbacks from the community . :highfive:

Thank you.
[Huawei Mate 10  Questions & Answers] Platinum1986:
nobody in the same situation ? :crying:
[Huawei Mate 10  Questions & Answers] eyeb:
Dirty jack?
[Huawei Mate 10  Questions & Answers] Platinum1986:
You mean that output audio jack could be dirty ?
[Huawei Mate 10  Questions & Answers] zayidhs:
Oh, just stumbled on this. I'm having the same problem Mate 10 Pro.

Did you get a solution?

Thanks
[OnePlus 6T  Questions & Answers] SebringTech:
I received my OP6T this past Tuesday and I absolutely love the phone. It was super easy to get TWRP installed after unlocking (easy since mine was purchased outright from OP).

My only problem is that I play Pokémon Go with my son. And it detects Magisk no matter how I tried to hide it from the app.

Is it not possible to flash TWRP without Magisk? I'd like to eventually try different kernels, but I just don't understand how everything appears to require Magisk.

This is my first OP device as well as the first device I've had with the A/B slots.

Any ideas would be greatly appreciated so I can unlock the phone to its full potential and still play a game I enjoy playing with my son.
[OnePlus 6T  Questions & Answers] s3axel:
Hi,

TWRP and magisk are not directly related, other than the need for twrp to flash magisk ;)

In order to get rid of magisk you can just download the magisk Uninstaller (you can get that from the official magisk thread) - just be aware that of course any Magisk mods will be lost...

One caveat, though: this only works if you have an unmodified system partition (so you never acknowledged changes to system partition in twrp) - if you did you need root to be able to boot the system!

Cheers, Axel

Gesendet von meinem LYA-L29 mit Tapatalk
[OnePlus 6T  Questions & Answers] SebringTech:
So I'm assuming I accidentally modified my system. Using Magisk Uninstaller from the app made it so the phone only booted into recovery until I flashed Magisk. Zip again.

On another attempt after resetting up the phone it seems that the Uninstall from the app succeeded but my phone would not boot for a good 15 minutes. Just a black screen nothing else. But after it turned on Magisk was gone and I didn't lose anything.

The twrp file to remove Magisk failed every time saying to use the one from the Magisk dashboard.

Is there an easy-ish way to get a stock system partition? Or will I have to use the tool to return the phone to stock and start over?
[OnePlus 6T  Questions & Answers] OhioYJ:
Magisk Props Module <- Have you tried this Magisk module? I don't play Pokemon go but I was able download it and open it. (I don't know at what point it detects root).
[OnePlus 6T  Questions & Answers] SebringTech:
It actually was even easier ? in the settings menu and click hide magisk and it renames itself to something random and works fine!
[Xiaomi Poco F1 Questions & Answers] Reborn.N:
So yeah do you own a pair of these headphones with your Poco/PocoPhone F1? If so then please tell me what you think of the audio quality please. Would love to hear from other (Yes I own a pair) owners on their opinion.

I have only one word to describe them, wow.
[Xiaomi Poco F1 Questions & Answers] Reborn.N:
I can't be the only person IN THE World with this combo, can I?
[Xiaomi Poco F1 Questions & Answers] Damoedge:
I own them too and they are excellent!
[MTCD  Android Head Units Q&A] xLeviNx:
Hey what’s going on guys. Has anyone been able to find a way to display meta data on the Bluetooth ad2p app?

I currently use the MTCD until service that’s on the play store that pulls out the data and displays Bluetooth data (app requires root but the Bluetooth data displayed does not) (Arthur, song name, time remaining) but would prefer to have it in the stock app or as a notification/widget.

Currently running 2.95 HA and Hal9k’s Mod
[General Questions and Answers] Esgrimidor:
I usually need to record photos and videos of my documentation.

I would like to save directly to a protected folder.

How can I do that.

What is the best app for this ?

Best Regards
[Samsung Galaxy Note 9 Questions & Answers] MahomeBoi:
Anyone know what I need to do, I've searched and cannot seem to find any info other than an old thread for a note 8.

Any help would be much appreciated! Thanks in advance.
[Samsung Galaxy Note 9 Questions & Answers] winb83:
Might be carrier dependent. When I was on unlocked firmware the Note9 said LTE for that and 4G for HSPA+. Flashed to AT&T firmware and it now says 4G LTE for LTE.
[OnePlus 5T  Questions & Answers] Xetmes:
Hello

I'm happy with testing Android Pie on my 5T, I also love new pie gesture with pill navbar, but since I use Nova Prime back button is always visible, I was looking over net for solution, for other phone model there is small app which let hide back icon and still keep possibility to use back option, but not working on 5T, did any one found solution to hide this icon?

Cheers.

View attachment 4667029
[OnePlus 5T  Questions & Answers] AsuraDas:
I like using just the straight navigation gestures. Looks really clean
[OnePlus 6 Questions & Answers] peyronnx:
Hello,

I am under OOS 9.0.2 with :

- Standard kernel

- Magisk 18

- 3 Magisk modules : Google Dialer, Digital Wellbeing, Substratum

SafetyNet loops and test never finishes.

If I disable Magisk Hide, test finishes but fails ...

If I add my bank app to MagiskHide, it doesn't launch. Same with Google Pay.

What I have to do to make everything works fine?

Thanks a lot
[OnePlus 6 Questions & Answers] Mord0rr:
I have Magisk 18 and no problems.
[OnePlus 6 Questions & Answers] peyronnx:
OK it is due to Google Dialer module.

Mystery solved
[Samsung Galaxy S7 Edge Questions and Answers] mnsiw:
S7 Edge G935F, watching video on Youtube in portrait, now if I rotate it 90 degree counter clockwise, it does not rotate video and switch to full screen mode. Taping on full screen button switch to landscape and full screen but while playing sometime it rotate 180 degree (upside down) while holding the phone in same potion, then it revert to normal potion in few seconds.

It was happening on Glamour OS, then switched to stock, it's same, installed Ultimate Rotation Control from Play Store, with Force Auto Youtube rotation works but that upside down issue is still there. Is there any collaboration app for way or something like that to fix this issue, any suggestion?
[Samsung Galaxy S7 Edge Questions and Answers] uniacidz:
I just tried and seems to work fine for me on YouTube and Twitch

I remember though having that exact issue but cannot remember if was with this phone or my prior Asus phone

Can try to diagnostic on the gyroscope and sensors

Dialer *#0*#View attachment 4667041View attachment 4667044

Sent from Samsung S7 Edge [Oreo]
[Samsung Galaxy S7 Edge Questions and Answers] BurnedDrake:
Which YouTube are you using? Official from playstore or a modified version?
[Samsung Galaxy S7 Edge Questions and Answers] mnsiw:
Official from Play Store
[General Questions and Answers] 241210_crazy:
hello, i'm from 4pda. there i couldn't found any answers for my question.

question: for launch any frimwere whith PT i haven't to do anything, BUT ever time SIMcards and Wi-Fi doesent work.

for full compatibility i need have general image system (GIS) - how i can port my original GIS from 8.1 to any PT frimwere based on 9.*

please, do not delete this theme, better explain it))

i'm russian and i'm so sorry for my terrible english ;)