yashsingh1/xdaforums huggingface dataset:
[Device Reviews and Information] amg314:
All ROM versions after 0604 have encrypted /data partitions.

Google care of you!

Try 'Universal DM-Verity, ForceEncrypt, Disk Quota Disablers'

https://xdaforums.com/android/software/universal-dm-verity-forceencrypt-t3817389
[Device Reviews and Information] doblebo:
how is lineageos running on this for everyone? i can't imagine even connecting to my wifi network with one of these out of the box. it would probably just start sending GOBS of personal data to beijing.

i see the gearlabs rom is also addressing this, so i'm between the two. i like lineageos running on another device.. but would i be missing out on anything by not running the gearlabs modified stock rom?
[Device Reviews and Information] rippledrums:
Need a little help with my Chuwi. :(

It was working fine, played on it a bit for a few hours while connected to a power bank (it was charging through it), then I connected it to the charger and I went to sleep.

The next day I noticed the tablet wasn't charging at all after switching from the power bank to the charger. Instead it continued to show as charging but was actually discharging.

Found some threads that recommended discharging it completely and then charging, so I installed a drainer app and it went to 0% but stayed on.

After a little bit it actually went up to 1% again, and I have no idea where it got that charge from...

Connecting the USB cable does nothing, even when connecting to PC it doesn't get detected.

I'm at a loss...

I've had the tablet for barely 2 months now and the price it cost me is quite a lot for me, if it dies I just wasted a lot of money... :(
[Device Reviews and Information] amg314:
According to your description, it looks like your problem is in the battery or in the charge controller. Hopefully, the defect is no deeper.

Try to initiate a dispute with the seller about the refund.

If this measure is unsuccessful, then I see no other way out than disassembling the tablet.

If you do not have soldering skills, then find a phone / tablet repair specialist.

I would try to unsolder the battery and temporaly connect in its place another, knowingly good lithium battery, like 18650, from a flashlight.

If after this the tablet starts, then the problem is in the battery.
[Device Reviews and Information] rippledrums:
Last night the battery eventually got drained and I left it connected to the charger overnight and it charged to 100% and seems to be working again... :confused:

Maybe some software bug was causing it?

Damn this tablet has so much potential but they screwed up hard with the OS...
[Device Reviews and Information] Philomene:
I installed android 8.1 on Chuwi MT6797D X23

I boot to recovery TWRP

flash decryption, format data, factory reset, flash Phh Treble 8.1 AOSP v28

flash Magisk 8.0

reboot system

all is good. Many thank to PH HUSSON for this excellent rom
[Device Reviews and Information] Gumka1977:
Good, respect!

Apparently, AOSP Extended is also good. How are things like wifi, lte, etc., saturation? How fast is the interface? Can it be used as a daily driver?
[Device Reviews and Information] rippledrums:
I have the same MT6797D X23 model and would also love to get rid of the hideous stock ROM so I'd be very interested to know how that one works, what works and what doesn't, any bugs you may encounter, pros and cons, upsides and downsides, etc etc... :p

And also other good alternatives anyone may know about, preferably 8.1 based. :)

Seeing as there's no kernel source, using anything other than Oreo may not be a good idea, unless I'm mistaken.
[Device Reviews and Information] Philomene:
Very close to pure android no option, no problem with wifi, neither better or worse than the stock but touch i think is more fluid no lag . I also have night vision that I didn't have on the stock. Mira vision was buggy on stock rom and when i navigate in the options of mira vision i couldn't exit sleep mode no response of the standby button. Have to do a reset factory and format. The battery I think is better than the stock but not yet well tested. it is just only my opinion

Sorry for my bad english
[Device Reviews and Information] amg314:
Please inform on Antutu and Geekbench tests result comparing with ones in Opening Post.

Tell me please also about issues while using your GSI.

The point is that I had no charging animation and about 10% common slowing while testing Android 9 Treble GSI.
[Device Reviews and Information] rippledrums:
Thanks!
[Device Reviews and Information] Philomene:
yes no charging animation but not a problem (for me). not android 9 but 8.1. the charge is slow as stock rom
[Device Reviews and Information] rippledrums:
what do you mean by no charging animation? doesn't show the lightning over the battery icon while charging? the battery percentage (if it exists on vanilla AOSP) doesn't change on the status bar?
[Device Reviews and Information] Philomene:
no charge animation when the tablet is off
[Device Reviews and Information] rippledrums:
Ah cool, I can live with that :P

Thanks!
[Device Reviews and Information] amg314:
I am innovations fan as well))) (If there are any visible advantages)).

Let us discuss the matter:

Pros:

=====

1. Version No (8 --> 8.1)

2. Xposed support (Pie v9 is currently officially unsupported)

https://www.xda-developers.com/xposed-framework-unofficial-port-android-pie/

3. adb debugging on (ro.adb.secure=0 in build.prop --> USB debugging with no authentication, see Picture)

https://android.stackexchange.com/questions/55674/how-can-i-enable-adbd-during-boot-on-cyanogenmod

4. No monstrous gapps, no pre installed other Google huge apps like Chrome, Gmail, Play Market etc. (in vanilla GSI, see Picture)

5. Deodexed framework

6. Rooted GSI (on your choice)

https://github.com/phhusson/treble_experimentations/releases/tag/v28

Cons:

=====

1. No charging animation((

2. Bad fonts scaling due to GSI Adaptation to small phones displays

3. Headache due to all your loved apps reinstallation thru Titanium Backup (((

4. Big doubts on increasing performance
[Device Reviews and Information] rippledrums:
I agree with all your points.

About the Cons:

1. Doesn't bother me much, I do my best to never let the tablet's battery drain completely.

2. That could suck... Is it very noticeable? Does it degrade image quality in general much or look weird in any way?

3. Well, I don't have that many apps to restore, what's worse for me is the amount of media I have to backup/restore in internal storage.

4. Not really expecting a performance boost, just a somewhat better experience.

My problem is that the current firmware version on my Chuwi is the one from November which seems to be quite unstable.

I was thinking of either flashing the August version (which according to consensus on some posts here seems to be the lesser of all evils) or using GearLabs v3 with the August firmware.

But if I can get Android 8.1 working (even if some tweaks are needed) on my Chuwi, I much prefer it over 8.0 :) (even though I liked stock Oxygen OS on my OnePlus 3T, I had to switch to a custom 8.1 ROM because some Oreo features are much more polished in 8.1, especially the minimized notifications and toast style)

Anyone here tried Phh's Lineage v21 (last update from June) besides Alberto's version?
[Device Reviews and Information] amg314:
I used two ROMs on Chuwi - 0604 and 0809. Their main difference was the encryption of the date partition in 0809.

Therefore, I returned to 0609 with a working TWRP. At the moment I have no reason to change this firmware to newer ones.
[Device Reviews and Information] Gumka1977:
I have the last stock 28/11/2018 I would like to change (something faster). x23 has a kick but the interface is slow and full of lag. I think about 8.1 GSI because it is probably better pampered than 9.0. I do not know which distro to choose!?
[Device Reviews and Information] amg314:
All variants of AOSP 8.1 v28 are listed on:

https://github.com/phhusson/treble_experimentations/releases/tag/v28

For Chuwi you need A-only arm64 versions.

Vanilla is AOSP, no Google apps, no SU (no root).

Floss incliude some Google apps and SU listed on:

https://github.com/phhusson/vendor_foss/blob/master/update.sh#L44

As I use microG (without gapps) and Magisk sytemless root, I like system-arm64-aonly-vanilla-nosu.img.xz

But think twice)))
[Device Reviews and Information] thecoolkid:
Where did you get that from? :) Last one I have is from 23/11/2018. No updates after that. Can you make a full TWRP Backup (without data) and share here?
[Device Reviews and Information] Gumka1977:
First, I had 22 or 23/11. Then something spoiled and installed the first firmware from this forum, updated several OTA and I have 28/11. Unfortunately, my upload is 50 KB / s on old DSL so I can not send it.
[Device Reviews and Information] galinha:
Please give me some help !

I bought this tablet ! Read all of the posts and in the end im not sure about a any rom !

I dont use Google apps

I jusr want the tablet to :

Browse the net

Download torrents

See tv (with my app)

Clean my email

I want a fast tablet with a lots of batrery !

What do you recomend ?
[Device Reviews and Information] amg314:
You did not inform what firmware you use now))

Without Root, you can not get rid of the pre-installed Google applications.

So use Chrome for Web surfing.

Recommended Torrent clients are Flud and Swarm.

You have Gmail client, but I recommend K-9 mail (open source).

The main source of battery discharge is our big high resolution screen. Adjust its brightness to an acceptable minimum.

Settings ---> Display ---> Brightness level
[Device Reviews and Information] thecoolkid:
Thanks for the tip! :good:

I can confirm that if you flash 2018-08-11 firmware and update it all the way, you get 2018-11-28, which is slightly newer than 2018-11-23 (which while being on this firmware said it was the latest). Also you can't update any firmware below 2018-08-11 (any pre-GMS firmware), because it simply now says the latest firmware is already installed. I hope this 2018-11-28 is faster/better for GSI which I'm gonna test soon. :D
[Device Reviews and Information] galinha:
Thanks , im using stock rom,

L
[Device Reviews and Information] Gumka1977:
I also hope that it will be good for GSI :) I would like a cool GSI on Hi9 Air!
[Device Reviews and Information] amg314:
Disconnector report

=================

There are some annoying apps that are hard to get rid of. Checking 'Connections' panel of OS Monitor app, I see Aliexpress app still connected, despite of I closed it some time ago (See picture 1).

How to 'cure' such spying applications? By editing services, providers and permissions of the app.

I know three curing methods:

====================

using XprivacyLua

https://xdaforums.com/xposed/modules/xprivacylua6-0-android-privacy-manager-t3730663

using 3C ToolBox

https://xdaforums.com/showthread.php?t=1908942

using MyAndroidTools (MAT)

https://xdaforums.com/galaxy-s-advance/themes-apps/share-myandroidtools-guide-to-disable-t2869119

It took 46 MAT disconnections to fully pacify Aliexpress app (See picture 2), including FacebookActivity, FaceDetectorService (Hi, Zuckerberg! https://gizmodo.com/wow-mark-zuckerberg-is-paranoid-as-****-1782370124

As a result, Aliexpress app is fully working, but there are no spying connections after app closing!

*---------------------------------------------------------------------------*

Facing the screen camera of my tablet is also covered with a piece of tape))
[Device Reviews and Information] galinha:
Thanks

L
[Device Reviews and Information] Caio09:
Hi All,

I have a chuwi hi9 air, and I want ti ask you if there Is a trick or a solution for the use of anche actvie stylus pen. I'm using 3 different Active pens but when I draw , there Is a big delay and lag on the screen. Is there any solution ti fix It?

Thank you
[Device Reviews and Information] uncleabubear:
There is no active pen support for this tablet
[Device Reviews and Information] uncleabubear:
Gearlabs Rom is my favourite.
[Device Reviews and Information] guygenius:
Netflix in HD

I understand that this tablet has only Widevine L3 certification and there cannot play HD in Netflix stock Android app. Is there any way to play Netflix in HD though?
[Device Reviews and Information] madsurgeon:
Didn't mention this earlier, but I'm having 2 issues:

1. Device volume is very low, I'm going to mess around with the mixer paths to see if i can increase the volume

2. Wi-Fi speed and connectivity on 5GHz is really bad. My pixel XL, and laptop show speeds in excess of 100mbps whereas it only shows max of 10mbps on the hi9. Not sure how to remedy this
[Device Reviews and Information] DanteXXL:
I've tried pretty much everything and the result is the same.

Do you think it's worth holding onto to? Maybe the next OTA update will change things, or until we can root this tablet.

Quite sceptical about Chuwi's warranty and Chinese companies' warranty policies in general.

Right now I'm quite annoyed because it's supposed to be better than my Fire HD 10.
[Device Reviews and Information] YuriRM:
You must report this bug to Chuwi. Send them one ticket.

I am wondering if you have inflicted yourself this bug. Have you imported data and settings from another device? Try to remove the microsd card and do a clean factory reset.

Another choice is to follow the lead of [MENTION=7107296]Emoclaw[/MENTION] and [MENTION=5098274]madsurgeon[/MENTION] and install a Generic System Image (GIS) of Project Treble on Chuwi Hi9 Air.

Be sure to backup your stock ROM beforehand.

To avoid any possible issue, do not forget to backup your NVRAM so that you won't risk to lose your IMEI.

How to:

http://www.anythingultimate.in/2015/11/how-to-backup-your-nvram-partition.html
[Device Reviews and Information] madsurgeon:
What i didn't do was take a backup of the stock rom. I just flashed the AOSP-8.1-GSI. Now there's been a new update from phh, I'm not sure how to update the build, since I don't have TWRP, I'm gonna factory reset and flash latest phh-LineageOS treble update thru fastboot, if it's unusable I'll switch to AOSP. Have to wait for stock rom because i forgot to back it up. ?
[Device Reviews and Information] YuriRM:
TWRP Builder

TWRP Builder is a project that connects you with developers to request unofficial TWRP ports

https://www.xda-developers.com/twrp-builder-project-developers-request-unofficial-twrp-ports/

[V3] TwrpBuilder | A project that creates TWRP recovery for your unsupported devices!

https://xdaforums.com/android/apps-games/twrpbuilder-t3744253

[MENTION=5845407]uncleabubear[/MENTION] or anyone on the stock ROM without bugs, can you request a recovery from TWRP Builder, please? Install their app and follow the procedures. Can you extract the recovery.img from the stock ROM?

Requirements:

*Latest version of Play Store

*BusyBox *for older devices

*Root (Still works without root access but in this case, you need to provide us a working recovery.img)

EDIT- The thread is closed. Unfortunately, their server has been under permanent attack by hackers.

However, You still can create a TWRPBuilder recovery yourself by using their script anyways.

https://github.com/TwrpBuilder/twrpbuilder_tree_generator

https://github.com/TwrpBuilder
[Device Reviews and Information] fasty:
Just thought I'd dive in and greet the group; My Hi9 air arrived last Friday.

Initial impressions: On the negative side, build quality is not quite as exquisite as my old Cube tablet, but it's OK. Fitted screen protector is truly horrid. The plastic volume and power buttons don't give a great impression of quality. A few glue marks and minor paint chips on the case - Chuwi must have been in a rush to get them finished. Surprised there is no auto-brightness control; I've grown used to having that.

On the plus side, most things seem to work. I seem to be getting good WiFi and 4G LTE connections despite the signal strength readings looking low and others reporting difficulties. Really surprised to have VOLTE apparently working too. GPS seemed to work extremely well when I tried it on a train, which is usually a fair challenge (I have come to expect GPS to be awful on Mediatek devices).
[Device Reviews and Information] YuriRM:
Do not rush to update by OTA! You will lose screen brightness (from 400 nits to 200 nits).

Download this blue filter to remove excess light if there is a need for it.

https://play.google.com/store/apps/details?id=com.panagola.app.bluefove

Note: this app sometimes does block a few commands when in night mode.
[Device Reviews and Information] fasty:
Oh? I already tried for OTA but none seemed available. Could mine have been made after the update, or the update has been withdrawn?

Brightness of mine seems acceptable albeit not dazzling. Unfortunately I can't measure the value.

Build here is "000623 release-keys 20180506"
[Device Reviews and Information] madsurgeon:
Update: tried flashing phh-LineageOS, no joy, it failed.

Anyone know how i can revert to stock rom?

Edit: i would be grateful if someone could get a romdump from their device or maybe try building a scatter file using the app I've attached below. Thanks in advance
[Device Reviews and Information] YuriRM:
Where did you get that app from?

Have you checked it for malware?

---------- Post added at 10:14 AM ---------- Previous post was at 09:48 AM ----------

Can your device run this app?

Just a Line - Draw Anywhere with Augmented Reality

https://play.google.com/store/apps/details?id=com.arexperiments.justaline
[Device Reviews and Information] Dan3ll1:
Annnnnd getting scammed
[Device Reviews and Information] DanteXXL:
OK, just to give a quick update.

I contacted Chuwi Official Store on AliExpress where I bought the Hi9 Air from (don't know if they're actually THE official store) about my tablet's overall stuttering and lag. They came back and told me to "reinstall the system" which I'm assuming is to re-flash the software?

Got sent a few links for the software, flash tool and instructions so will that a try later. Hopefully things will be fixed.
[Device Reviews and Information] YuriRM:
Great! [MENTION=5098274]madsurgeon[/MENTION] here is your chance to reinstall the stock ROM.
[Device Reviews and Information] thecoolkid:
Can you share those?
[Device Reviews and Information] DanteXXL:
Sure, just finished downloading these in case they remove them later on. I won't be able to test until the weekend so if anyone wants to try them and report back that'd be great.

The system.

http://www.mediafire.com/file/i8bn4...9C%80%E6%96%B0%E8%BD%AF%E4%BB%B6_5-7.rar/file

The tool.

http://www.mediafire.com/file/odn8rixm01np9qe/0308.rar/file

The tutorial

http://www.mediafire.com/file/o656v...%99%E7%A8%8B_%E7%BF%BB%E8%AF%911-20.docx/file
[Device Reviews and Information] madsurgeon:
I've used this app for ages, there's no malware, I'm not that careless.

---------- Post added at 10:06 PM ---------- Previous post was at 10:04 PM ----------

Please explain, what you mean.

---------- Post added at 10:09 PM ---------- Previous post was at 10:06 PM ----------

Thanks for sharing these mate, Just done DL them, will flash them soon and get back to you. Cheers
[Device Reviews and Information] madsurgeon:
Having an issue with the scatter file included in the stock rom, there's an error. I cross checked with other mt6797 scatter files and they all lload, this one doesnt
[Device Reviews and Information] DanteXXL:
I can't extract the "system" file at all. I've asked them to re-upload and send again.
[Device Reviews and Information] uncleabubear:
Thanks for these, I have updated OP with these links. You also need the Download Assistant File which I uploaded. Flashing stock rom all working, just waiting for apps to re-install ;(
[Device Reviews and Information] uncleabubear:
No need for them to touch it, try downloading again
[Device Reviews and Information] amg314:
https://www.androidpolice.com/2019/...used-by-netflix-hulu-and-hbo-has-been-broken/
[Device Reviews and Information] guygenius:
Thank you for sharing but this doesn't explain how we can make use of it to view Netflix in HD. Previously in this thread someone explained that using unofficial copy of Netflix can help. Does anyone know where I can get this copy that can allow streaming in HD.
[Device Reviews and Information] talon_262:
Need a bit of help...

I just got a Hi9 Air from Chuwi's store on Amazon and have been playing with it the past few days; it has the 20181122 firmware and, so far, I'm not having any hardware issues that I can see. For a week-and-a-half, I've been reading through this and associated threads to see what I need to do to root and flash other ROMs and whether I should; a lot of the info that's in the early part of this thread about installing the available alternative ROMs seems to be somewhat outdated with Chuwi's GMS releases starting in August (particularly with the storage partition now being encrypted, which I ran into after I installed TWRP).

Seeing as Chuwi is supposed to release Pie for this in late summer, I'd like to leave my options open to take that update when it's available, but I also would like to install phhusson's 8.1 Treble AOSP GSI (since the Hi9 Air is currently stuck on 8.0, with its last security update from last June, way out of date these days IMO) in the interim. Now, as I stated above, I have installed TWRP, but I also rooted with SuperSU, which is working like a treat; what I need to know is this:

1) What is currently the best way to go from the Chuwi 20181122 firmware to a Treble GSI (phhusson's AOSP, his LineageOS version, or whatever)? A clear and concise procedure that's more current would be greatly appreciated.

2) When I do it, XDA's Treble GSI install guide basically says that SuperSU/Magisk should be removed when moving from stock to a Treble GSI, though it can be reinstalled once on the Treble GSI; do I really need to do this and what is the safest way to remove root on the Hi9 Air without screwing things up?

3) Before I do anything else, what should I be backing up in TWRP (and can it be restored OK)? There's a whole lot of new partitions listed there on the Hi9 Air that I've never seen before (as compared to older devices I've had) and I don't want to screw anything up.
[Device Reviews and Information] amg314:
Please read the following article and my post:

https://www.xda-developers.com/flash-generic-system-image-project-treble-device/

How to flash a Generic System Image (GSI) on Project Treble supported devices

https://xdaforums.com/showpost.php?p=78854775&postcount=37
[Device Reviews and Information] talon_262:
Finally got 'er done with the AOSP 8.1 GSI, but it took a couple of hours and some scares that I might have bricked the thing.

As I stated in my above post, I had the stock ROM rooted with SuperSU and, after unlocking the bootloader, that caused lots of problems when I tried to install the GSI without having taking root off (total PEBKAC like a dumbass, because I knew the Treble GSI install guide said that root SuperSU/Magisk should be removed first, but, in my just-woken-up bleary-eyed state I was in when I started this morning, I forgot about). I ended up using SP Flash Tool to flash back the latest stock ROM (20181122; the one I had on originally), which, in hindsight, I should have done to begin with to get a clean slate. Once I had it back to bone stock and installed TWRP again, I was finally able to install the GSI and Magisk, then got apps and such installed like I like it.

So far, so good.
[Device Reviews and Information] rippledrums:
Please share your experience in a few weeks or so with that GSI as I've been thinking of flashing it as well.

I'm not expecting a performance increase as we're stuck with the stock kernel anyway (because no sources) but I really don't like 8.0.

Thanks in advance!
[Device Reviews and Information] guygenius:
I got mine from Amazon as well. Does yours play Netflix in HD? There is conflicting information that it can play Netflix in HD in Amazon Q&A.
[Device Reviews and Information] galinha:
Can you post the link to the rom ? I dont know what to download.
[Device Reviews and Information] thecoolkid:
Hey, any update on TWRP with support for decrypting data partition? the 3.2.2-0 in OP doesn't support that...