yashsingh1/xdaforums huggingface dataset:
[Huawei Mate 20 X Questions & Answers] Zephels:
Have you tried mounting the drive in Settings-Storage? Is it detected?
[Huawei Mate 20 X Questions & Answers] pozergabor:
Yes, I looked everywhere but there was no option to mount a new drive.

I read elsewhere that Huawei Mate 20 series phones don't have OTG support.

I'm curious now because my Mate 20 X has no OTG option in the Settings menu.
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
What about HiSuite on window? Try to restore the rom by HiSuite on windows
[Huawei Mate 20 X Questions & Answers] pozergabor:
HiSuite in Windows only offers to downgrade the firmware to the previous version there is no option to upgrade to latest. 310 version.

Can it be that my USB C to USB 3.0 adapter is incompatible with my phone?

Does Mate 20 X definitely support file transfer via USB C to USB A Otg cable?
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
Yest first fix the phone by downgrading. Then update again
[Huawei Mate 20 X Questions & Answers] pozergabor:
Sorry, just to clarify, you mean I should downgrade firmware with HiSuite and afterwards HiSuite will be able to update firmware to the latest .310 version?

Just don't want to go through all this and stay on the same current .300 firmware :)
[Huawei Mate 20 X Questions & Answers] CCJ22:
What is dload method? Any thread that explains how to use method and what method actually is?
[Huawei Mate 20 X Questions & Answers] Zephels:
Don't downgrade your firmware just yet. Try these few steps

1. Download Xiaomi File Manager. Open it and then plug in your OTG; the fila manager should detect it. Source

2. Use a PC to format your USB drive to FAT32 file system before inserting to your phone. Source

3. Check in Developer Setting that you have USB natively set to Media Transfer Protocol

Follow this
[Huawei Mate 20 X Questions & Answers] pozergabor:
It means instead of installing your phone's firmware Over The Air, or using HiSuite, you manually download the firmware file and place it on an SD card or USB drive and apply firmware update from there.

Ie: Download the Mate 20 X's latest firmware zip file onto your PC (bottom of page 27 of this thread)

Extract it with WinRAR. You end up with a folder called "Software". Within this folder there's another folder named "dload" which has 3 .zip files in it.

You simply copy the "dload" folder (with all 3 files in it) onto your SD card or USB drive's root folder.

Turn off the phone and hold at the same time volume up + volume down + power button.

Firmware will be applied automatically.

As long as device recognises the USB drive :)
[Huawei Mate 20 X Questions & Answers] CCJ22:
Lifesaver. Thank you.
[Huawei Mate 20 X Questions & Answers] edit:
I am experiencing battery drain since I've upgraded to 9.1.0.310 (i have an C432)... something like 1.4-1.6% per hour idling, without the sim in it, bt off, only wifi on...

The funny thing is I've reset the phone before and after the update so in theory is clean, installed everything after like I would on a brand new phone (so no restore involved)... did everything by the book so to speak...

I don't see what I need to do more.... Probably reflash it again?!
[Huawei Mate 20 X Questions & Answers] kelvintisw:
Clear the phone Cache on more time?:confused:
[Huawei Mate 20 X Questions & Answers] edit:
Did that too... After that it eate 2.6% in the last hour... idleing... This so much fun :(
[Huawei Mate 20 X Questions & Answers] Zephels:
You will need to check which app/system process is consuming battery after the update. There are a few areas in Settings to check this:

1. If only WiFi is on,then you'll need to check what's which app is consuming bandwidth

Settings - Wireless & Networks - Data Usage - Data Usage This Month (Click More) - Wi-Fi (Day)

2. Hardware & Software Battery Usage:

Settings - Battery - Battery Usage

3. Hardware Consumption:

Settings - Battery - Power Consumption Details (Hardware)

Once you narrow it down you can either uninstall it/disable it (if it's not critical) or alter it's permissions to restrict data/battery usage.
[Huawei Mate 20 X Questions & Answers] edit:
Thank you for taking the time to give me some hints... unfortunately I looked at those and nothing is out of the ordinary... no heavy traffic on wi-fi, the battery graph it's in free fall the moment I take my phone from charging, looks like I am gaming or something even if the phone is idling. No apps on the battery stats that look like they drain the battery, the phone does not get warm... but the battery drains now 2.2% per hour doing nothing when it should be 0.5%-07% at the most.

I am no stranger to the android world but when it has bugs that there are out of your reach... sucks big time.

I guess I will try a reflash and if it behaves the same back to the old version...

Ah, one more thing, on this version the MX Player Pro app has major sync issue (audio video sync) if you use the HW+ hardware decoding engine that used to work fine in the previous version of EMUI....

It only works ok if you use software decoding (but drains more battery) and HW (non +).

This version of the EMUI has so many issues, bugs and feels so rushed... big disappointment for me. I had Huawei phones before but never got updates with so many bugs and so bad.
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
I think in terms of stability samsung smartphones (High end phone only) are best. The high end smartphones of samsung really very smooth, no bugs, very stable OS and softwares but unfortunately there is no 7.2 display phone other than Mate 20 X, so we have to stick on Huawei Mate 20 X. It samsung will make any 7 inch plus high end smartphone then many mate 20 x user will switch to samsung again.
[Huawei Mate 20 X Questions & Answers] galaxy16:
did you do the process with OTG pendrive or nano sd card?
[Huawei Mate 20 X Questions & Answers] Zephels:
Looks like it could be a system process that's triggering wakelock and not allowing the phone to deep-sleep, and not being shown on the default battery stats. Maybe you can install GSAM and enable battery stats. It will show you what's consuming battery, processes, kernel and wakelocks. Hope it helps.

Yeah i noticed that too. I left it at Software decoding. I had to do the same thing for my Galaxy Note 9 previously on Oreo last year.
[Huawei Mate 20 X Questions & Answers] CCJ22:
Nano sd card. I loaded the update on the card. Turned off phone. Held all physical buttons down and it took the update.
[Huawei Mate 20 X Questions & Answers] Yogi.G:
Thank you so much for the rom... after installing this version... google feed isn't working or starting up..

hiboard has been un-installed and replaced with google feed but, it just not starting up... right swipe is'nt happening...

any one else has this issues ???

anyway to start it manually ?

any updated ROM for EVR-AL00 ?? using dload method
[Huawei Mate 20 X Questions & Answers] PrOoF-:
Anyone get the August security patch? I just got it, I am officially on 9.1.320 :).
[Huawei Mate 20 X Questions & Answers] kelvintisw:
L29 C???? What is your region? :confused:
[Huawei Mate 20 X Questions & Answers] PrOoF-:
EVR-L29 it's the C636 Global Asia/Pacific.
[Huawei Mate 20 X Questions & Answers] kelvintisw:
Cool! It's coming to my set soon too! :)
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
When?
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
Is there android Q beta for Mate 20 X?
[Huawei Mate 20 X Questions & Answers] letschky:
I had the same Problem after the Update from 300 to 310 (C432).

After Factory Reset no Problem with Battery Drain.

In 12 Hours in Standby i lost 0%
[Huawei Mate 20 X Questions & Answers] :
End of September

Verstuurd vanaf mijn EVR-L29 met Tapatalk
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
Thanks
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
Another update came! But size was too small. Most probably 147 MB or like something.
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
Ohh security patch, august
[Huawei Mate 20 X Questions & Answers] edit:
Still dealing with battery drain issues on my new Mate 20 x (C432) but I think it's a broken phone because I realized the it does NOT have NFC... I don't have a button, it's missing in the menus... no reference of NFC what so ever.

Can you please confirm guys that your Mate 20 x model C432 does indeed have NFC and it's working?

I am thinking that this model might for some unknown and strange reason missing NFC... I don't think so but who knows.
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
I have no idea
[Huawei Mate 20 X Questions & Answers] letschky:
Did you do a factory reset after the update?

That can eliminate a lot of problems.

Mate 20x has NFC!
[Huawei Mate 20 X Questions & Answers] edit:
I know it does but MAYBE for some countries for some reason the NFC is disabled.... that info I could not find... I was hoping that someone, here, with the same model number - C432 - can tell me if his is working or not...

Thanks
[Huawei Mate 20 X Questions & Answers] mudnightoil:
C432 is the UK region, I think.

It's typically really bad on a lot of Huaweis. Mass of bugs, missing features, and absent updates. You basically NEVER want a UK Huawei phone.

Some P20 Pro C432s are still on the second version of EMUI 8.1.
[Huawei Mate 20 X Questions & Answers] pozergabor:
My C432 has working NFC.
[Huawei Mate 20 X Questions & Answers] zain0300:
Yeah I downgraded back to 9.0 as well
[Huawei Mate 20 X Questions & Answers] filip_pine:
A Guide or How To will be nice. Thank you mate !
[Huawei Mate 20 X Questions & Answers] ajsmsg78:
Do method #2:

https://huaweiadvices.com/downgrade-huawei-android-pie-emui-9-0-to-oreo-emui-8/
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
I also don't know how to report huawei
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
I also try to downgrade
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
yes, Huawei upload a fixing update soon I hope
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
But all of us even can not regular use our mate 20 x
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
I also will ry to downgrade, not it is the only solution
[Huawei Mate 20 X Questions & Answers] omer919:
has anyone succeeded in downgrading on C185?

---------- Post added at 08:01 AM ---------- Previous post was at 08:00 AM ----------

which method did you use to downgrade and what region are you on
[Huawei Mate 20 X Questions & Answers] darudedudedocta:
lucky u man..did u reset after updating?
[Huawei Mate 20 X Questions & Answers] lovers74:
No I just cleared cache from recovery menu
[Huawei Mate 20 X Questions & Answers] darudedudedocta:
could you plz outline the steps for a Huawei noob..thanks in advance mate
[Huawei Mate 20 X Questions & Answers] lovers74:
Sure.

1-turn off the device completely.

2-hold the power button + volume up for about 20 seconds and dont let them go until you see the recovery menu with white background.

3-once in the recovery menu choose the third option which is wipe chache partition.

4-when it is done reboot your device by choosing the first option.
[Huawei Mate 20 X Questions & Answers] Calvofernan:
Yo creo que es debido a los themes.....
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
Clearing cache from recovery does not solving my problem
[Huawei Mate 20 X Questions & Answers] omer919:
The methods above didnt work for me and this didnt either.

I downgraded mine using funkyhuawei

I followed their instructions on upgrading p30 but selected 9.0.0.208

after the update was done I got bootlooped so I forced my phone to recovery, factory reset a few times and cleared cache and the phone is working great on 9.0!

(if its important to you, it killed my safetynet CTS and changed my region to C636)
[Huawei Mate 20 X Questions & Answers] juggamonkey:
I also haven't had any problems with the update is there anything that you can do to replicate the issue so I can try?
[Huawei Mate 20 X Questions & Answers] omer919:
(all of the issues below happened to me after factory resetting and clearing cache)

The most noticible issue is that once in a while the phones screen goes black then it restarts to lockscreen (crashes). when I was on 9.1 it happened to me twice a day

The second issue is the bad battery drain - on 9.0.0.208/ 206 / 207 I get 3 days of usage and a drain of 1% every 3 hours if I dont use the phone.

on the other hand- 9.1.0.300 gave me 1 day of usage and a drain of 5% every hour if I dont use the phone.

The third issue is EROFS and ARK compiler - not only that it doesnt make the phone faster, I noticed laggs and glitches! (I also checvked geekbench and the score was lower)

I downgraded to 9.0.0.208 and removed the updater so I wont get any updates, this rom is perfect
[Huawei Mate 20 X Questions & Answers] Dextremadura:
Hello, you could put the link to the website.

That served you to downgrade.

If you can explain it a little in more detail I would appreciate it.

I'm with a translator. Forgive me for my English.

Greetings from Extremadura. Spain.

Enviado desde mi EVR-L29 mediante Tapatalk
[Huawei Mate 20 X Questions & Answers] omer919:
Please note that by doing this you agree that im not responsible for any problems, bricking, losing safetynet or region or otas or any other problem that might happen doing the steps!

Please downgrade at your own risk and choice!

PLEASE NOTE: after the downgrade I lost safetynet (CTS doesnt pass) and I lost my region (Im now C636)

FunkyHuawei: here

1. Create an account and pay for 1 credit

2. Select EVR-Global

3. Select 9.0.0.208

4. If you have Hisuite on your pc, uninstall it completely

If you want, use this guide instead of steps 5 - 8 -> here

5. install the specific hisuite from this: here + when it says there is an update, dont update and close hisuite

6. Download FHHiSuiteInstaller from: here

7. Run it and then put your device in fastboot mode by holding down power and vol down buttons at the same time while connecting your phone to the pc

8. open HiSuite and click "System recovery"

9. Let it do its job until it says "Done" on HiSuite, while downloading hisuite might close once or twice just open it again click system recovery and the download will continue

10. when the phone boot up to Huawei logo, force your phone to recovery by clicking power + vol up buttons at the same time until it gets to recovery

11. wipe cache and factory reset a few times and after that wipe cache one last time

12. reboot to system

13. go to reset in settings and click "Reset Phone" this will do a low level factory reset and after that you are good to go

14. reboot to system and enjoy emui 9.0!

After this I deleted the updater app so I wont get updates or update notifications (updates dont appear in settings any more)
[Huawei Mate 20 X Questions & Answers] slayerking911:
You are totaly wrong almost all Samsung phones note 10 plus included lagging when you travel around the menus. Especially getting one to another application it is occasionaly lagging. I am fan of Samsung, my Last device is samsung note 8. I hate its battery performance and smoothness. Mate 20x is slightly unmatched King.
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
If your observation is right and I am wrong then I would by happy because I am using Mate 20 X now :)

I also used incuding Note 8 all of samsung flagships. Just Note 10 and S10 I didn't use. Note before Note 9, all samsung flagships has battery issues. But I didn't find software issues or hardware issues. I used Note 9 and no buttery issues there. Note 9 was a fantastic device except the display size very small display compare to mighty Mate 20 X. Waiting for Mate 30 X :)
[Huawei Mate 20 X Questions & Answers] edit:
Yes, it's UK, bought from Amazon... Has in insane battery drain that I can't shake off... I can't figure out if it's a hardware thing or a software thing... Most likely I will return the phone since [MENTION=10071793]pozergabor[/MENTION] was so kind to confirm that he's has an working NFC while mine is missing completely.
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
Battery drain issue here after Updating 9.1.0.320 C636
[Huawei Mate 20 X Questions & Answers] fp1707:
Worse than USA? ?
[Huawei Mate 20 X Questions & Answers] kelvintisw:
How do you define battery drain in your case?

You seems to have all sort of problems.

My C363 is fine in term of battery performance since day one with whichever version of firmwares.
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
Hahaha! Actually I am feeling my Mate 20 X Battery performance was better before the update! :) I am just feeling.
[Huawei Mate 20 X Questions & Answers] edit:
In my case it fluctuates quite a lot from decent to horrible.

I'll give you some scenarios that I've tested to give you a picture of what I am fighting for the last 7 days

Scenario 1.

Performed a factory reset. Updated to the latest version of os, factory reset after, configured after with all my apps but NO facebook, whatsup, facebook messanger, instagram, snapchat. I only have an single gmail account on the phone. Turned off wi-fi, bt, gps and I have no sim installed. Battery drained during the night 1.7% per hour. So during 8 hours it drained almost 14% doing absolutely nothing because everything was off. In the same scenario my Huawei Note 8 would drain around 0.1-0.3%

Scenario 2.

Downgraded to EMUI 9.0 from the HiSuite app (latest 9.0.0.208 I think), factory reset after, reinstalled everything, again no messaging apps or battery intensive ones like Instagram, wifi on this time, location on, bt off, no sim. During the night 1.6% per hour.

Scenario 3.

Did a factory reset prior to upgrading to EMUI 9.1 , installed EMUI 9.1, factory reset after, tried the HiSuite restore and to my surprise it only restored just 90% of the apps, wi-fi on this time, location on, 4G sim in. Gmail sync on. no messaging app... 1.1% per hour. In the same scenario my Huawei Note 8 would drain around 0.5-0.7%

What I find odd about the missing NFC from my Mate 20 x is that the OS libraries associated with NFC are not present in the system... is like this OS was build for a Mate 20 x without NFC. I am thinking that even if the NFC is broken (hardware wise), the libraries would still be in the system just not doing anything because the hardware was missing. Is the OS deployment that smart to detect what is missing and reconfigure accordingly during the setup?
[Huawei Mate 20 X Questions & Answers] kelvintisw:
Whatever it is. :cool: Our next big wait is EMUI 10 - Android 10! :):):)
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
waiting for the big wait!
[Huawei Mate 20 X Questions & Answers] thiagoserrao:
I'm having problems since 9.1 with sharing and donwloads. When i download using chrome and try install or open something, the chrome just crash. Same with sharing anything, just clicking at "share", the cellphone just crash the apk, i don't know what to do anymore :(
[Huawei Mate 20 X Questions & Answers] mobile88:
I had zero problems with 9.1 till now

Could never understand why some users facing crash issues

It could be due to incompatible app w 9.1?!
[Huawei Mate 20 X Questions & Answers] letschky:
Which Version?
[Huawei Mate 20 X Questions & Answers] thiagoserrao:
I was using 9.1.0.123 Chinese version, but now, i downgrade to 9.0 too much problems with share :/

I just gave up. wasn't able to download, because the chrome crashed every time, wasn't able to install apks, because the system not allow me to install, i was intalling apks using the manager, but wasn't able to install using then, i usually go to the manager and create a shortcut to be able to install, too much problems with one rom. hahah.

But it's ok, i found a topic here to downgrade!
[Huawei Mate 20 X Questions & Answers] letschky:
AL00?

I think 9.1.0.127 fix the Problem,you can found 127 Version in Rom/dload section to Download.But dload Methode delete all Data.Backup your Data!
[Huawei Mate 20 X Questions & Answers] thiagoserrao:
I didn't got this update, i was a little upset about it. I just roll back and i'm using OminiRom Beta 5, until now, not a single problem. Let's see
[Huawei Mate 20 X Questions & Answers] flatronics:
Not a single issue on OminiRom Beta 5? Camera? I'm assuming it has stock huawei camera but is it from the more recent update? Sound/Speaker? Wifi? Fingerprint? Face unlock?
[Huawei Mate 20 X Questions & Answers] thiagoserrao:
I didn't found any problem with the Ominirom. Camera is good *thx goooddddsss*, sound and speakers OK, Wifi ok, Fingerprint working ok, Omini it not have Faceunlock for now. Only fingerprint and pin/maze and others.
[Huawei Mate 20 X Questions & Answers] edit:
So about my battery drain.... and the lack of NFC... On my Mate 20 x EVR-L29 C432

I just got a replacement from Amazon and this one works... If has NFC and it has no battery drain so the conclusion is that the previous one that I had was actually defective not only for the missing NFC but also for the really bad battery drain.

The funny thing is, the battery drain was present (on the defective one) even when the phone was completely off. I charged the phone twice to 50%, turned it off, and I could not turn it on after 36 hours or so.

Just wanted share, maybe it will help someone, someday.
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
How to know my Mate 20 X's NFC is ok or not?
[Huawei Mate 20 X Questions & Answers] edit:
Several ways:

1. from the drop down menu, swipe twice so you can see all the button and you must have a button named NFC (on my broken phone it was completely missing)

2. if you go to settings, under device connectivity menu you should be able to see the NFC option that can be turned on or off (on my broken phone it was completely missing, it wasn't even listed under the connectivity menu)

Thing is the battery drain drove me nuts, it was insanely high and I was so caught up trying to deal that that it took me many days till I realized that the phone was missing the NFC and the drain might be hardware related.
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
Yes I have NFC showing on the dropdown menu. Thats mean I have nfc?
[Huawei Mate 20 X Questions & Answers] zain0300:
Android 10 roadmap for Huawei devices
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
Ohh so far! long days have to wait!
[Huawei Mate 20 X Questions & Answers] letschky:
Same with Emui 10 as Emui 9.1 with Reboots.

I have since the release Emui 10 often automatic restarts that nobody else has.

Today i send my M20x to the Huawei Service Center.

Let's see what comes out of it.
[Huawei Mate 20 X Questions & Answers] shingers5:
I on the other hand haven't had any prompt for 9.1 update on L29. Seems most have. My build shows 9.0 C636 so not sure if this was a manual downgrade to reverse issues mentioned here. If I use Hisuite will I see the upgrade as I want to test 9.1 Emui
[Huawei Mate 20 X Questions & Answers] shaifullah.ahad:
I can't understood you
[Huawei Mate 20 X Questions & Answers] shingers5:
i haven't received any prompt for the update to EMUI 9.1 i am still on EMUI 9.0 with .207 firmware. i would like to update to EMUI 9.1 i see build .123 has been uploaded. can i do this with Hi-Suite? i don;t really wanna play with root and bootloader at this point if i can help it.

L29 C636
[Huawei Mate 20 X Questions & Answers] Dextremadura:
Hello, thank you very much for the information to restore the smartphone. At the end I followed the web link that he put, and the instructions that were in it.

It has cost me a lot because the smartphone restarted after a few minutes and the download was slow.

When the operating system was installed, the phone was restarted, and the Huawei screen was left without doing anything, a long time.

It restarted and continued like this, enter in recovery mode, and I get an indication that the file system is damaged, that if I want to do a "low level" formatting.

I indicate that yes, and after a while, I see the instructions to enter the new configuration.

Have you updated your smartphone back to EMUI 9.1 ?.

Or it is better to leave it in version 9.0.

I do not know if you will understand me, I am with a translator.

Thanks again, for your contribution.

Sincerely.