yashsingh1/xdaforums huggingface dataset:
[Device Reviews and Information] Spaine Lilang:
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] fenelis:
Dear friends, for a while seriously I have some plans to purchase this tablet both for its specifications and also for the facilities that enable the users to enjoy custom ROMs. So as to make the things the clearer I'd kindly ask the opinions of the owners briefly with its other advantages and disadvantages. Thanks.
[Device Reviews and Information] orbec:
Android Auto again

Hi

As I've had no response to my previous question re does any one else use AA on their Hi9 Air, Is there any chance one or more of you could install it & test the voice commands. EG Start Spotify or call so and so or navigate to wherever. None of these commands work for me & if they cant be made to work I might aswell give up on the Chuwi & flog it.

Cheers......
[Device Reviews and Information] michael08071984:
Hello.

Can this be used for the Chuwi HI 9 Pro too?

Thank You
[Device Reviews and Information] N10A:
Voice commands work fine for me.
[Device Reviews and Information] orbec:
Hi N10A

Thanks for your reply but can you confirm the voice commands work within Android Auto?
[Device Reviews and Information] N10A:
Yes. You'll need Google Assistant activated. All vocal commands work. 'call', 'navigate to' etc
[Device Reviews and Information] koolershaker:
only voice command that worked for me was asking for weather

music, navigation etc dont work in Android Auto but fine in Google Assistent...
[Device Reviews and Information] sopan96:
Hi, i have bought Chuwi Hi9 air from aliexpress. The tablet is randomly reboot even the temperature is not too hot. Any advice?

Thanks guys, sorry for my bad english
[Device Reviews and Information] ollm:
Hi.

Currently I have the device rooted with magisk manager with the realese key 201806162, if I upgrade to the new OTA (20180809) would lose the root? If so, is there any way to update if you lose the root?

Thank you.
[Device Reviews and Information] Cjt1984:
Have you tried a factory reset?
[Device Reviews and Information] uncleabubear:
Update and then update magisk
[Device Reviews and Information] Jiai:
[MENTION=5845407]uncleabubear[/MENTION] : For information (to update the OP), the latest stock ROM improve quite a lot the Bluetooth sound when using the 4G (it was near unusable before). I consider this issue solved on my side.

Edit : Obviously, less then 10 seconds after writing it, the issue restarted....
[Device Reviews and Information] Axection:
I have problem with the touchscreen. it seems the touch is registered soooo late if I landed more than 2 fingers.

I play some rhythm games (Lanota, Arcaea, VOEZ, Cytus) and touch is soo... questionable.

Is it grounding problem? or ROM? the audio latency is pretty good tho.
[Device Reviews and Information] Alberto96:
I noticed the same delay, unfortunately without kernel source code it can't be fixed.
[Device Reviews and Information] Axection:
:(

what a letdown

this tablet is ALMOST perfect.

almostttt

at this point, I can only pray, at least, 5 multitouch points :(

the performance is good already for the price eww

I'll try changing ROMs, reduced resolution and things.

And somehow I'm still suspicious with grounding.
[Device Reviews and Information] rens-br:
LineageOS would be great! I'm using it also on my OnePlus One and to have the great and cheap hardware from de Hi9 Air combined with LineageOS would make it really awesome.
[Device Reviews and Information] Axellx:
I want to say that Chuwi Developer don't do a good job with the stock rom, is too slow, fixed some bugs and stop, moreover the wifi signal is unstable. I hope this is not another fake worth chinese tablet. Anyone know if the stock rom will be updated? I hope I don't lost my money

---------- Post added at 08:55 PM ---------- Previous post was at 08:48 PM ----------

Alberto penso che stai facendo un buon lavoro, spero che riscirai a risolvere i problemi rimanenti, continuerai nel miglioramento della rom? sennò ho buttato i miei soldi.

Alberto, I think you're doing a good job, I hope you will fix the remaining issues, will you go on with rom's improvement? otherwise I lost my money. :)
[Device Reviews and Information] Hackerjac:
With the knowledges i have about Chuwi and theire updates, then don't get you hopes too high, we have gotten 2 updates so far, if we get just one more we will be lucky

Just look at it, we are in mid Sep, last update was in August and we are still running on June secyrity patch

The only thing Chuwi is busy with is pushing new devices out, since the release of the Hi9 Air there have been a Hi9 Pro released, Hi9 Plus and HiPad is also comming, my guess is that Hi9 Pro and Hi9 Plus have same problem with SIM+BT, donno if the HiPad also will, sdince it comes with the Helio x27
[Device Reviews and Information] orbec:
Help installing TWRP please

Hi

So I've just tried to install TWRP using SP Flash on a Windows 10 PC.

I've got twrp_3.2.2-0_Hi9Air selected in SP Flash. When I click download & then plug in the Hi9 I get the message - PMT Changed for the ROM it must be downloaded. Please Select "Format All + Download" Scene & Try Again

Any idea what I'm doing wrong?

Cheers.......
[Device Reviews and Information] Alberto96:
Replace the scatter file with the one that comes from the latest August Stock ROM and retry.
[Device Reviews and Information] orbec:
Got it thanks. But when I boot into recovery mode I don't get TWRP, just the little green android on his back with the red exclamation mark and the message no command!
[Device Reviews and Information] orbec:
Dunno what the problem was last night but I've just tried again & now I've got TWRP. Thankyou Alberto96
[Device Reviews and Information] orbec:
Now I've got TWRP I'm trying to install the new stock rom but when I select install it tells me the Zip file is invallid. I've re downloaded the zip & tried again but I get the same message. I admit I didn't wipe anything first. Could that be the problem?

Also I've tried to unlock the bootlader using ADB & Fastboot but each time I try I get the message that the bootloader can't be unlocked. Does this matter?

I've also installed Magisk & got Root.
[Device Reviews and Information] gllark:
Hello guys, need urgently your help please. I was able to flash TWRP 3.2.2 to my device and afterwards flashed boot.img and system.img of GearLab-Rom via TWRP and then Magisk. All went good, but I´m in a bootloop now, allways landing in TWRP again. I tried to flash stock rom again via sp flash tool, but I always get Error Status_Scatter_File_Invalid. So I´m really stuck. What am I doing wrong? I can boot from TWRP to fastboot mode, but not into system. Any hint welcome, thanks.
[Device Reviews and Information] Alberto96:
You can't install Stock ROMs with TWRP.

Rename your Stock ROM folder and, if it still doesn't help, use the latest version of SP Flash Tool
[Device Reviews and Information] gummyb3ar:
how to create folder?

Hi, sorry for my newbie question, But can anyone tell me how to join apps into the same folder? I tried to long press any apps but it move me to home window instead of enable to join it with other apps to create new folder
[Device Reviews and Information] distante:
Is there no fix for Netflix playing on SD? I tried with Chrome and desktop mode and I'd didn't work ?
[Device Reviews and Information] gllark:
[/QUOTE]Rename your Stock ROM folder and, if it still doesn't help, use the latest version of SP Flash Tool[/QUOTE]

Worked for me, thanks a lot!
[Device Reviews and Information] Lord CESAR:
Please what's the way out for this terrible oversaturation on this annoying tablet
[Device Reviews and Information] Alberto96:
You can't bypass DRM protections.
[Device Reviews and Information] distante:
I though Chuwi had obtained the certification but looks like it is not the case.

Thanks anyway
[Device Reviews and Information] Alberto96:
Only the Google GMS certification unfortunately. Even big brands like Xiaomi (for most if not all models) do not include DRM L1 so i am not that surprised.
[Device Reviews and Information] mistr1959:
Hi, I installed TWRP with flashtool. When booting in TWRP, i am asked for the pattern to decrypt the device. I created a pattern to unlock the device on startup. But TWRP does not recognize the pattern. I read about this problem wich seems to be TWRP can not find the file with the pattern.

Cause i only wanted my device to be rooted, what I managed by installing supersu from USB, it is not important until I find annother rom. But it would be good having a working recovery

Gesendet von meinem NOA_H10 mit Tapatalk
[Device Reviews and Information] Alberto96:
I am working on a fix, don't worry :)

UPDATE: Starting from the GMS Certified Stock ROM (August 2018), the level of security applied to the system seems to be higher. TWRP, in the current dev. state, is not able to decrypt the user data partition. The same issue can be seen on the Xiaomi Redmi 6A (that features a Mediatek chipset), the master of TWRPs [MENTION=6596524]jemmini[/MENTION] reported the same issue. This doesn't mean that it isn't fixable, it just requires some extra work.
[Device Reviews and Information] Lord CESAR:
I am stuck on April build
[Device Reviews and Information] anonymous1:
TWRP will read the SD card, so root via SuperSU or Magisk can still be flashed.

Mount SD card with zip files on to flash.

Appreciate your work on fixing this Alberto :fingers-crossed:
[Device Reviews and Information] Alberto96:
Yeah at least it is usable. Thank you.
[Device Reviews and Information] polgafr:
ROM

Hi, with this MediaTek CPU's there's a chance to get a ROM by the community?

I'm a Snapdragon consumer, but I'm considering to buy this tablet.

Thanks.
[Device Reviews and Information] uncleabubear:
Please read post no 2
[Device Reviews and Information] Alberto96:
GearLabs ROM v3 based on the August 2018 update has been released: https://xdaforums.com/showpost.php?p=77143203&postcount=392
[Device Reviews and Information] uncleabubear:
Bravo and Thanks
[Device Reviews and Information] strawsy:
Just installed this and now my tablet touchscreen doesn't work properly. The calibration seems to be way off. I'm not sure how to correct other than loading the last rom.
[Device Reviews and Information] Alberto96:
Be sure to install the August 2018 Stock ROM first, it is required.
[Device Reviews and Information] strawsy:
I installed August stock rom then installed Gear labs rom v3 but now I'm stuck on boot loop. Went back to stock and then tried Gear labs rom v3 again but still boot loop. Any ideas?

I got it by using the flash tool.
[Device Reviews and Information] anonymous1:
Thanks Alberto :highfive:

I was on August stock rom.

Moved original scatter file from (CHUWI update folder) to Gearlabs folder (one with boot.img and system.img files), used SP Flashtools with this scatter file in Gearlabs folder using 'Download' mode and no problems.

Updated apps and my original settings still in place. Not sure but it seems this ROM consumes more RAM or has a 'memory leak'? Amount of free RAM seems less for given situations compared to stock ROM.

Nice new bootanimation as well (but reminds me of Windows loading screen!), so I will go back to bootanimation I was using (attached).

All the best guys. Looking forward to a LOS ROM :fingers-crossed:
[Device Reviews and Information] lebemensch:
Hi all,I have a question regarding mobile network. I have also a Leeco le Max 2 and switch often Sim cards between both devices. Leeco seems to have a way stronger mobile network connection.

What are your thoughts? Are you happy with your LTE connection?
[Device Reviews and Information] Alberto96:
It makes more use of caching for the VM and for the HW Renderer (HWUI) for maximum performance, not an issue.

On my device the signal is quite low with, obviously, low speeds.
[Device Reviews and Information] LUYULKMOIO:
Hi everyone, is it possible to know the changes log of the GearLabs ROM v3?
[Device Reviews and Information] xiojason:
Apologies if this is a naive question, I'm unfamiliar with Magisk.

After installation of GearLabs ROM v3, during the first boot, the tablet appeared to restart itself once or twice before coming up to the setup process. Are multiple restarts during initial setup expected?

After setup and launching Magisk, I was informed that Magisk wanted to update/install itself. I allowed it to do so, and it appeared to download, patch, and proceed to flash itself to the boot firmware...

...and it hung. I left it sit for nearly ten minutes with no further progress during the flash operation. I forcibly shut the tablet down and rebooted. It did start, seemingly without error. Is it expected that Magisk would prompt for installation? Is it expected that it would appear to hang during the flash process?

Upon relaunching Magisk, it didn't prompt for reinstallation, so I presume it's installed and active, but I'm hesitant about a potentially mangled boot flash. Is there a test I can do somehow to verify proper GearLabs or Magisk installation?

Thanks for any assistance.
[Device Reviews and Information] Alberto96:
Yes.

Yes, but it should not hang.

Test SafetyNet.
[Device Reviews and Information] xiojason:
Thanks, Alberto. SafetyNet appears to pass, and scrolling in Chrome and other apps is *much* smoother. Much nicer. Thanks again!
[Device Reviews and Information] strawsy:
My device rebooted on it's own and now it's only booting to twrp. I reflashed but still goes to twrp only. Not sure what's going on.

I went back to stock by flashing in flashtool then reflashed gear labs v3 through fastboot. Now just stock on the original problem of bootloop.
[Device Reviews and Information] strawsy:
Any ideas for my current issue?
[Device Reviews and Information] rebelduke:
August Stock ROM

I'm brand new to this tablet. I've reviewed all 73 pages of this thread with no luck finding a link to the August Stock ROM download. I know it's here somewhere! Can someone please point me to a link where it can be downloaded and installation instructions? For some reason it's not available to me OTA. Any help would be greatly appreciated.
[Device Reviews and Information] rippledrums:
The Search function is your friend... (And I don't even have the tablet yet :p )

https://xdaforums.com/showpost.php?p=77503097&postcount=592

Instructions should be in the first post.
[Device Reviews and Information] uncleabubear:
Read Original Post here https://xdaforums.com/general/device-reviews-and-information/chuwi-hi9-air-64gb-mt6797-x20-deca-core-t3775682

Click on Downloads
[Device Reviews and Information] Drfrag:
4g and Bluetooth issues

I have this same problem when using 4g Network. On 3g network or wifi my Bluetooth is working better. I am experiencing some stuttering audio and connection dropping.
[Device Reviews and Information] strawsy:
Has anyone successfully installed the Gear Labs rom v3? If so what were your steps cause it isn't working for me.
[Device Reviews and Information] caspaas:
Invalid sparse file format at header magi ?

why do i get this?

it doesnt do anything.

boot img it does fine.
[Device Reviews and Information] strawsy:
That error can be ignored.
[Device Reviews and Information] Arantxa:
Hi al, is there a way to update the ROM without using flashtool, i mean, download and update ?, my tablet doesn't update by otra, thanks un avance...
[Device Reviews and Information] amg314:
There are three main methods to upgrade ROM:

OTA

adb (Android debug bridge)

SP flash tool
[Device Reviews and Information] Serg.dv77:
Before installing gearlab 3, you need to set the August stock rom through sp flashtool.
[Device Reviews and Information] FrenchSparda:
Just ordered mine on GearBest, 150€, quite a deal. I think that will be the perfect alternative for my old Nexus 7 (2013) in my car :D
[Device Reviews and Information] strawsy:
I've done that a few times but it makes no difference. Gear labs rom just boot loops. Went back to August stock rom until I can figure out why it isn't working.
[Device Reviews and Information] LUYULKMOIO:
Hi all, there is a lot of change with the gearlab 3, or the stock version of August is enough?

Alberto96, had said he would not do any new CUSTOM ROMs, why gearlab 3?

Thank you in advance for any answers.
[Device Reviews and Information] machx1111:
Has anyone fixed LTE + Bluetooth issue? That is 99% my usage
[Device Reviews and Information] NikosD:
If you mean the problem I read here using LTE and Bluetooth at the same time, then no.

I use my Bluetooth headset for YouTube movies via LTE with no problem at all as a Hi9 Pro owner.

The only problem common with Hi9 Air is with Radio FM that is not working, although hands free work in all other cases.

But I don't hear anything using Radio.

---------- Post added at 07:01 PM ---------- Previous post was at 06:31 PM ----------

@Alberto96 (or anyone else who could reply)

1) Is there a way to check the exact version of Bluetooth of an Android device ?

I mean not what the manufacturer says (or doesn't say) but to run an app or see a kernel property or something like that.

For example Hi9 Air probably has Bluetooth v4.2 and Hi9 Pro has probably Bluetooth v4.1 according to various sources because Chuwi doesn't provide technical specs.

2) Does Hi9 Air have a WiFi 2x2 MIMO ?

3) Now that your device is GMS certified can you check if latest Chrome v69 has the proper Material Design 2 appearance with rounded tabs and address line or is it still rectangular ?

Thank you!
[Device Reviews and Information] Alberto96:
1) Well the exact version can't be known but you can always use what Mediatek provides on the website, like this webpage regarding the dev. board: http://labs.mediatek.com/en/platform/mediatek-x20 (BT 4.1)

2) No, 5GHz WiFi 802.11ac 1x1

3) Still rectangular for me, i guess it is related to the screen resolution.
[Device Reviews and Information] NikosD:
[MENTION=9350973]All[/MENTION]

Do you charge the tablet using the charger from Chuwi which was inside the box ?

I noticed today that while charging it produces a little noise.

You have to go close to the charger while charging in order to hear it.

Do you have such experience with your chargers ?

I have a Hi9 Pro.
[Device Reviews and Information] fabio_64:
SP flash tools error

Dear All,

I'm new to forum and after 2 days spent to read all messages I need your help.

I tried to upgrade Hi9 air from april to august ROM but due an initial error the tablet now is unusable (it start but stop asking a password).

Anyway I download the august ROM from 2 different place, (and also the july one) using SP Flashtools( also the last version) but It show always the same error

"ERROR: STATUS_SCATTER_FILE_INVALID (0xC0030001)

The scatter file format is invalid!

Hint:

Please select a valid load or ask for help"

I tried also to change the scatter file, also the DA file (downloading from Chuwi forum), but the same error

I think there is something easy but I cannot solve, sorry

Could anyone help me?

Thanks

Fabio
[Device Reviews and Information] lore97:
Come bugs.

Hello, I also have the same problem, how do I solve? I must necessarily ask for the replacement, right? thanks
[Device Reviews and Information] amg314:
You can compare scatter files from different origing using Total Commander Compare fiture (select both files using Insert button, then -> Files -> Compare by Content). If both files are equal, probably you have problem with your VCom drivers on your PC.
[Device Reviews and Information] amg314:
My charger do NOT produce noise during charging.

Get yourself USB charging tester (something like https://my.aliexpress.com/wishlist/...m?spm=a2g0v.11010108.1000002.3.74a72a455WdWoO ).

Using it during charging you will know real Voltage, current and could check real battery capacity.
[Device Reviews and Information] fabio_64:
I'm thinking, the easy point (trivial?) could be: "Get rid of any chinese characters in directory names" ?

I will try if this solve my problem and report back

SOLVED! I get rid of any chinese characters in directory names!

I load the august stock ROM and also the Gear_labs_v3 all work without problems.

Thanks for your great work [MENTION=2386505]Alberto96[/MENTION]
[Device Reviews and Information] NikosD:
Well, in a noisy environment or if I stand in a distance I can't hear anything.

It's only when I put my hear close to it that I surely hear a weird sound.

The charger works extremely fast, it can charge a 5000 mAh from 0% to 100% in 2 hours and 15 minutes so it's above its rate of 2000 mAh.

Actually I have managed to measure the current with an app and it's around 2200 mAh.

The problem is not always performance but quality with these budget stuff.
[Device Reviews and Information] amg314:
In this case test your charger using Oscilloscope ))
[Device Reviews and Information] BOFH2k:
Hi9 Air truely GMS certified?

Hmm,

has the GMS certification actually went through with Google?

The device is neither shown as certified by Google Play (see Settings>Info) nor listed here:

https://support.google.com/googleplay/answer/1727131?hl=en
[Device Reviews and Information] Alberto96:
It may have been revoked. Try to clear Play Store app data.
[Device Reviews and Information] strawsy:
Any help would be appreciated.
[Device Reviews and Information] BOFH2k:
Thanks,

now the status is displayed as certified...

---------- Post added at 07:24 AM ---------- Previous post was at 07:20 AM ----------

It's important, that the MTK flash tool is set to "Firmware Upgrade" when flashing stock...
[Device Reviews and Information] N10A:
Try to flash both stock recovery and ROM.
[Device Reviews and Information] strawsy:
I can flash stock recovery and rom just fine. It's when I try to flash gear labs v3 rom that it just boot loops. I'm on stock R for now until I can update to gear labs v3.
[Device Reviews and Information] strawsy:
I believe I had done this before but I reflashed August stock rom again with flashtool set to "firmware upgrade". I then booted the stock rom up, check allow oem unlocking, and oem debugging. Booted into fastboot. Unlocked oem bootloader, flashed boot img, flashed system img. Try to boot and its just boot loop.
[Device Reviews and Information] FrenchSparda:
I received mine yesterday, for 150€, thats really a great piece of hardware. I used my Nexus 7 inside my car, mainly for navigation and listening music, i love my Nexus 7, i'll keep it. But it was time for an upgrade. First, i'm waiting screen protection, then, i'll install TWRP, root it, and upgrade it with custom ROM. 4G signal seems strong, brightness is OK. Very happy with such device :D
[Device Reviews and Information] Axellx:
There is much confusion about this Tab. What is the better rom for gaming? Lineage or Gearlabs?

---------- Post added at 12:45 AM ---------- Previous post was at 12:37 AM ----------

Yes will be great, when u continue? Have u already overclocked gpu?

---------- Post added at 12:55 AM ---------- Previous post was at 12:45 AM ----------

Is better than Gearlabs rom?
[Device Reviews and Information] FrenchSparda:
Did Chuwi released the sources ?
[Device Reviews and Information] Hackerjac:
Woulden count on it, never seen Tjuwi release any source code
[Device Reviews and Information] FrenchSparda:
Damn....i don't understand why they're not releasing sources. They dont understand popular devices are those with lots of custom ROMs, kernels ?
[Device Reviews and Information] Palm Trees:
Then start a petition and contact them :)
[Device Reviews and Information] FrenchSparda:
No petition needed, but i sent a mail ;)