yashsingh1/xdaforums huggingface dataset:
[Android General] NikosD:
First day after a full charge and I got 7 hours SOT.

Not bad.

But could someone remind me how on earth can I change the font ?

I couldn't find it in settings.

Update:

As [MENTION=9429197]nikaiako[/MENTION] told me (in PM) there is no setting for font changing in last ROMs like 05/01 and MTK Engineering Mode simply doesn't work.

So, next time I'll probably go to original first stock FW of 01/08 and probably stick there for the rest of tablet's life.

But for all other cases, 05/01 has no issues and a newer security update than 01/08.

One last thing.

After leaving battery charging more time than usual, the full percentage of 100% appeared again.

Update2:

At 50% battery the SOT is 4h 20min which is a new record for me and this tablet.

Font changing and MTK Engineering Mode could wait eventually!
[Android General] nikaiako:
Someone on the Russian 4PDA forum just reported that his new Chuwi Hi9 pro (CWI532) has the 20191029 FW out of the box. Does anybody know anything about this FW?
[Android General] NikosD:
What is his security update date ?
[Android General] nikaiako:
He says some October 2019. I asked him for a screenshot. Let's wait a little bit.
[Android General] nikaiako:
The security patch level is October 5, 2018, alas.

However, the FW is newer than ours - indeed, build number is 20191029, the kernel version is as of 28 October 2019.

The guy is not satisfied with this FW, says it's clumsy, slow, and rather low battery time.
[Android General] riike:
I just got delivery of my Hi9 Pro and I also got build number 20191029 and security patch level oct 18.

Can confirm it feels pretty slowish but I have no other rom to compare with. Started to read from page 60 and forward but don't really understand what to flash. Are the instructions in the first post still useful?
[Android General] nikaiako:
It became more or less clear now what sort of hardware this revision of Chuwi Hi9 pro has got. The guy from 4PDA deleted his 20191029 FW, and he succeeded in making the device quite workable with Christos' 20181226 FW and the boot.img taken from the 20181115 FW.
[Android General] NikosD:
Then, why not the official 05/01/2019 from Chuwi's site for him ?
[Android General] nikaiako:
I guess it will be his next move. :)
[Android General] novosys:
So I managed to flash TWRP and root my tablet. with magisk. Pretty happy with root access, but the tablets performance still disappoints me. Mine overheats/throttles in few seconds if it uses the A72 cores. I think it's because the motherboard doesn't have any real cooling. The motherboard physically "floats" between display and back cover inside tablet (took mine apart and had a look) and has no way to conduct heat from cpu/soc. So I'd like to ask if anyone has modded their tablets cooling? Maybe some thermal pads between cpu and display/backcover would help?

Oh and my sd card slot died, has that happened to anyone else?

Sorry if these questions are off topic, but this thread seems the most knowledgeable in the whole internet about this tablet.
[Android General] NikosD:
Interesting post, hardware oriented.

How did you find throttling while using your tablet ? I mean did you actually test the tablet using software monitoring tools measuring frequency and performance while running a benchmark ?

Did you compare your results with others running the same tests or it's just an impression of everyday use ?
[Android General] novosys:
I use Cpufloat to see the frequencies of cpu cores and cpu temperature. All thought I cannot be sure if the shown cpu temp is correct, but looking at the core usage it seems the tablet stops using/lowers frequency of A72 cores when the cpu reaches over 80 degrees celcius reported by the cpufloat. My geekbench5 score also gets better from (single 210 multi 996) to (single 236 multi 1210) when I cool tablet externally, all thought that is to be expected. The cooling of soc on this tablet is rather poor. The soc does not have any thermal contact on display or back plate like you would see on other devices. Normal web browsing works just fine, but games lag like no tomorrow. I know this is also because the gpu rather weak for the resolution this tablet has.
[Android General] NikosD:
Good work, then.

Your method seems accurate and the outcome seems reasonable.

I have seen the tablet getting hot during gameplay and it is true that the GPU can't handle the 2.5K resolution for gaming.

I hope a performance aware guy to have found out a workaround to cool the SoC and share it with us here.
[Android General] novosys:
Easiest way to have better performance is to buy some other tablet I guess, but I have couple of ideas to improve this tablets cooling. I'll post my results once I have them done.
[Android General] Gabe3:
would be nice if there was a way to lower the resolution
[Android General] nikaiako:
There are apps in the Play Market that allegedly can do this, e.g. Easy DPI Changer (root) by Chornerman, and Screen Resolution Changer by iUtilities.

However, those who tried to lower resolution in order to boost productivity of our device reported that it didn't work better or faster in any way
[Android General] NikosD:
I guess he wants this for games.
[Android General] NikosD:
Any new ROM for original Hi9 Pro ?

What is the latest ?
[Android General] nikaiako:
Sorry, no news at all.
[Android General] NikosD:
Then I guess I'll stick to 05/01/2019.

Have you tried any GSI ROM e.g Android 9.0 that is stable and fast ?
[Android General] nikaiako:
I was using AOSP 8.1 (v.32) for a month or so. However, now I am on the 20180801 boot & 20190105 ROM back again.

I tried to install the latest version of AOSP 9.0 and failed, since I tried to move there directly from AOSP 8.1.

They say one should install AOSP 9.0 just onto the stock ROM. And it seems that the bluetooth issue is somehow fixed already in the latest versions of AOSP 9.0.

I am talking about these GSI ROMs: https://github.com/phhusson/treble_experimentations/releases

and here is how to install them: https://www.xda-developers.com/flash-generic-system-image-project-treble-device/

UPD: On the Chuwi Hi9 Air forum someone mentioned that for the bluetooth to work on AOSP 9.0 (v.123) one has to enable a workaround, that is to open phh treble settings > misc features > bluetooth workarounds > mediatek. Then reboot. https://github.com/phhusson/treble_experimentations/issues/1097
[Android General] zomgbbqsauce:
Tried installing both phh's vanilla version, gapps version and havoc 3.2 gsi.

All won't get past the Android screen or havoc's boot screen...

Using twrp and came from 20190105 rom.

Any ideas?
[Android General] nikaiako:
1. I suspect that among all existing GSI ROMs only phh's AOSPs 8.1. and 9.0 can be installed on our device.

2. Forget about our TWRP, it won't work perhaps. Use the ADB method instead. Pay attention to follow all the details mentioned in the installation manual.

For example, after you enter this command: fastboot erase system, the next command should be exactly as follows: fastboot -u flash system name_of_system.img with a dash before "u".

3. Try different stock ROMs as a baseline. As far as I remember the best baseline fw for installing phh's AOSP

on my CWI548 was the 20181115 ROM. Though, the 20181220 also worked well.

4. You may also try to install phh's AOSPs via SP Flash Tool.

First, perform factory reset on your device. Then flash the GSI system.img through spft. Then turn on your device and do factory reset one more time via the android menu.

5. For Chuwi HI9pro you should use just the "arm64-aonly" version of any GSI ROM.

Good luck!
[Android General] NikosD:
The last few weeks, I got two or three times a weird behavior of Hi9 pro.

When I wake up in the morning, I see a message on screen saying "To start Android, enter your password" or something like that.

The message actually is in my native language, so I just try to translate it in English.

My password is not working and I don't remember putting a PIN or pattern on the device.

Also, I haven't set Android to ask for password before it starts.

Fortunately, I just power off the tablet and then power it on and it doesn't ask anything, so it boots normally.

Two questions:

1) Why and how is that happening, rarely, but always during night/ sleeping time ?

2) What could be the password ?

I'm thinking next time to try "default_password" or the pin/patterns I used to put, before putting a password that I have now.

Thanks!
[Android General] cerva2011:
can't install any gsi rom, adb tells me everytime: Failed remote:sparse chunk size is too big
[Android General] amg314:
Use a newer fastboot version. URL: https://androidmtk.com/download-minimal-adb-and-fastboot-tool

https://androidstudio.io/downloads/tools/download-the-latest-version-of-adb.exe.html

Details:

https://stackoverflow.com/questions/34299245/fastboot-flash-system-img-error
[Android General] cerva2011:
i tried every combination and everytime it says data is too large
[Android General] amg314:
I installed GSI system.img via TWRP (do not forget check img option)
[Android General] cerva2011:
i tried too using twrp but there was errore: cannot flash image to file system, and yes i enabled system modification
[Android General] amg314:
You can try TWRP --> Advanced --> Terminal

dd if=/sdcard/system.img of=/dev/block/your_tablet_path/by-name/system

URL:

https://xdaforums.com/showpost.php?p=74846883&postcount=9

Or use SP Flash Tool to flash system.img

URL:

https://xdaforums.com/showthread.php?t=1982587

On your own risk!

Make Nandroid backup before any transformations!
[Android General] cerva2011:
ok spflashtool worked thx i installed 8.1 aosp rom thx.
[Android General] asche81:
Last 9.0 with gapps also works fine. I installed this through fastboot.
[Android General] zomgbbqsauce:
quick update, managed to get Havoc GSI and android 9 GSI PHH to run.

Just flash magisk after trying to boot it once.

But here is the bad part, for some reason on android 9's, the power usage and off screen is really weird, it like is it running at full throttle cpu all the time and it drains (as well as heats up the device alot ) while screen is OFF,

On is worst draw.

---------- Post added at 04:33 AM ---------- Previous post was at 04:32 AM ----------

how is your battery time performing?

Mine does not go to sleep or throttle down?
[Android General] asche81:
I need to test. I have configured it, charged and powered off :)
[Android General] nikaiako:
The battery issue in my CWI548 didn't go away. The pictures attached show the battery behaviour in this apparently final stage of the tablet's life cycle.

Here the original 20180801 fw is used (other ROMs perform even worse).
[Android General] cerva2011:
i have problems too with battery, but in my case i can't charge more than 81% the battery, on every rom stock or lineageos 16, but in sleep mode i don't have any battery drain maybe because i'm not using gapps.
[Android General] NikosD:
Initially, when we first bought our tablets on August 2018, we didn't have such problems.

I could charge my battery from 0% to 100% in 2 hours and 20 minutes (approximately)

But then a second official FW from Chuwi called 15/11/2018 probably made a change and introduced a bug or a feature and cut off battery charging at 80%

Unfortunately, every FW I tried after that in hybrid configuration using vendor and boot images from original FW, had the same bug/feature.

But also the issue could be that the procedure using SPFT "Firmware Upgrade" mode, didn't delete battery calibration data.

The last few days me and [MENTION=9429197]nikaiako[/MENTION] tried the "Format all+download" mode of SPFT with various official FWs - even the first one 01/08/2018 - with no luck.

My charging stops at ~65% using 01/08/2018 ROM and if I just go on charging, I see a rate of <500 mAh.

Charging at such low rate is just wrong...I'm simply destroying my battery that way, even more.

One last thought regarding official FWs of Chuwi is that my original first ROM of my tablet, could be different than the one posted by Chuwi as "01/08/2018"

I made a mistake and didn't take my original ROM - that came with the tablet a backup - just to be sure.

I don't know if that 80% bug / feature of Chuwi and our ambition to charge the battery up to 100% even leaving it charging for hours, destroyed eventually our battery.

But just 1 year and a half after buying a tablet is just too early for such a severe battery problem, so I suspect that cheap Chinese tablets have also cheap and short life batteries too inside.
[Android General] asche81:
Ok, one issue i have found - bluetooth doesn't work.

Battery also is drained more than on stock rom.
[Android General] nikaiako:
From Chuwi hi9 air forum: For the bluetooth to work on GSI AOSP 9.0 (v.123) one has to enable a workaround, that is to open phh treble settings > misc features > bluetooth workarounds > mediatek. Then reboot.

Please, check it and tell us if it is true.
[Android General] asche81:
Yes, it works now. Thank you a lot!
[Android General] NikosD:
It happened again this morning.

I tried "default_password" and yes it worked!
[Android General] NikosD:
Greetings everyone.

It's apparently my last post here as of today I killed my Hi9 Pro and buried it in a safe place (its box) just before it commits suicide (!)

I got my hands on Hi9 Pro at September 2018 and after around 18 months the battery started having problems with charging, specifically with its capacity.

Unfortunately today, after around 21 months, my tablet switched off in less than 1% percentage drop in literally a few seconds after I pull it from charger.

So, I took my final backup of my files and formatted + download last firmware for the last time before putting it in its box.

It was a great time here, I learned many things for Android in general and especially MediaTek devices.

I have already ordered my new Teclast tablet since May, but due to the COVID issue it will come approximately at the end of the month (hopefully)

I hope this time the battery will last longer!

Thanks everybody!

Take care!
[Android General] chicagonyc:
Just unearthed this from my cabinet. It's running stock Android 8.0. What's the newest and best ROM that can be installed? I'm not super familiar with GSI ROMS, by the way, just LineageOS official ROMS and their nice install guides.

Also, the TWRP on the guide is no longer available for download. Where should I go for this?
[Android General] chicagonyc:
I install phh release 123 (9.0) with the FASTBOOT method since a previous post mentioned success. It did install, however, I don't see any of the hardware buttons! I can't go home or go back. Swiping down from the top does work to bring up the settings screen.

Help!
[Android General] nikaiako:
Here it is, the TWRP from this thread.
[Android General] nikaiako:
Hi!

Phh's release (9.0) that you've installed is eating battery on our tablet, not to speak of other glitches like yours.

The phh's release that fits best for Chuwi Hi9pro is AOSP 8.1 v32 (arm64-aonly). To install it, turn off your device and flash your regular firmware with SP Flash Tool. The next step is to flash the "system-arm64-aonly-vanilla-nosu.img" (or the variant with gapps) on top of your regular stock firmware.

You can do it also with SP Flash Tool. Put a tick against the "system" option in the SP Flash Tool menu, and then put the path to your respective "system.img" (i.e. AOSP 8.1.) file in the location column.

Leave all other options unchecked. Then flash the system.img in the "download only" mode.

When you are done, turn on your tablet and make a factory reset. You finished.

If something goes wrong, just turn off the tablet and flash it again with your regular stock firmware.
[Android General] Przemo1995:
Do i need root device to do this?i have stock rom 20181226 never rooted,this aosp is better than stock rom?
[Android General] nikaiako:
Nope.

You do not need root to flash AOSP. All you need is a PC with SP Flash Tool installed (plus Chuwi drivers).

In turn, to get your Chuwi rooted you just need to flash a patched boot.img also via SPFT (before that you have to patch your stock boot.img with Magisk).

A stable stock 20181226 ROM is slightly better than AOSP.

However, in order to reduce energy consumption significantly you may want to flash vanilla aosp (the one without gapps).

UPD: Chuwi drivers are missing on their web site, so you can use, for example, Universal ADB Drivers instead.
[Android General] Przemo1995:
Hi i do root just like you said the root its work but battery drain 5 percent on 1 minute.you know how im gonna wrong?im still using 20181226 ROM i root boot.img and patchedbiit.img using ADB fastboot im unlock bootloader and flash patchedboot.img after that tablet run like first using im must config everything like in the new device after that everythink work but battery fast drain.im using magiskmanager
[Android General] nikaiako:
Hi.

I have no idea why there's a problem with the battery on your device after you rooted it. Probably smth went wrong in the process. What you observe is not normal. I haven't experienced battery drain after rooting of the stock ROM.

Sorry, I'd rather start from the very beginning then.

This is absolutely normal that your device got the factory reset effect after you flashed the boot.img. It is always like that.

In a case this is the first time you do modding, then thoroughly read Page 1 of this thread, please.

There are three ways to get root access on Chuwi Hi9Pro. All three assume that you enabled OEM unlocking in the Developer options menu.

1. You install TWRP and then flash magisk.zip with it.

>>>The latest version of Magisk (v22.0) has just an apk.file, and I know nothing yet about how it works.

And I recommend that you use a magisk version not higher than 21.3 on a stock ROM.<<<

--------------------------------

The next two methods of getting root access assume that you take a boot.img from your stock firmware and patch it with a respective Magisk manager on your own tablet. Use a magisk manager version not higher than 8.0.4 or 8.0.5 to avoid glitches.

--------------------------------------

2. You get root access via ADB Fastboot.

Here you flash the patched.boot.img in the following order:

a) Connect the tablet to the computer, take the file "patched_boot.img" and paste it into the computer inside the folder "ADB + Fastboot" that we have in the Drive C:\.

b) Switch off the tablet

c) Press and hold Power and Vol +

d) When some small letters appear on the screen, release the buttons and then select Fastboot Mode. To do this, move along the list with the key Vol + and confirm with Vol -

e) Connect the tablet to the computer

f) In the folder "ADB + Fastboot" that is on the Drive C:\ run run-adb.exe

g) When the command window opens, type these commands:

adb devices

fastboot devices

fastboot oem unlock

(Here we will see a message on the screen of the tablet where we'll have to confirm if we are sure to unblock the bootloader. Here with the key "Vol +" we confirm the Yes)

fastboot flash boot patched_boot.img

h) Finally we type this command to restart the tablet:

fastboot reboot

----------------------------------------------

3. You get root access via SP Flash Tool.

Put a tick against the "boot" option in the SP Flash Tool menu, and then put the path to your respective "patched.boot.img" file in the location column.

Leave all other options unchecked. Then flash the patched.boot.img in the "download only" mode.

(After that I'd better make a factory reset once again).

--------------------

UPD: As you see, I didn't mention that you have to unlock bootloader before you flash patched.boot.img with SP Flash Tool. It is right. This method works on my tablet (CWI548) on both original 20180801 and the hybrid 20181226 (i.e.with 20180801 boot.img) ROMs. May be, the battery drain on your device after this method of rooting has smth to do with the fact that you (probably) have the CWI532 model?
[Android General] amg314:
The trivial cause of a 5%/min battery leak is bad battery and / or bad charge controller. In this case, contact the service department.

In case of software problems, you can test the system using special apps.

If there is a large drain in a stand-by mode, use BetterBatteryStats app.

In operation mode analyze battery leak with the GSam Battery app.
[Android General] Przemo1995:
Ok thanks the problem gone after charge the tablet, weird.i have last question is any way to get netflix in hd, i try old betflix HD APP mod ITS work but the old version dont have 10 second movie scrolling option, i also try patch netflix 7.44 in lucky patcher and ITS not work i also try to install magisk DRM disable module but it bootloop tablet.
[Android General] nikaiako:
To my regret, i do not use netflix at all. Can't help you, sorry.
[Android General] Ptkrss48:
Hello. I successfully installed Infect_Ed twrp on my chuwi hi9 pro using sp flash, but in the process now my touch screen functions extremely offset. Went back several times to reflash scatter file but still the same. Tablet working,but now using USB mouse. Anyone have any idea how to restore touchscreen? Calibrate apps aren't working. Thank.
[Android General] Darktron13:
Im stuck on recovery upon reboot always end in twrp recovery
[Android General] NightLord:
In case anybody else still has a functioning device, it turns out that the Hi9 Pro could be upgraded to android 11 after all.

There is one GSI ROM past phh's AOSP Pie rom that the device is able to boot:

LiR projekt A11 Lineage 18.1 based GSI

The one I used is lir-v316-220325-arm64-avZ.img

security patch 03.25.2022

I have yet to find any glitches, even bluetooth seems to work with phh's MTK workaround.

I guess its a shame this didnt spread sooner, someone posted in the russian 4pda Hi9 Pro forums about it two years ago, but it went unnoticed.
[Android General] gumka77:
Which method did you use for installation?
[Android General] NightLord:
Not sure about your question, but you need to have an open bootloader, then you may flash the system partition with the gsi image in fastboot.
[Android General] gumka77:
I just did it via spfl, I will test nikgapps later and it will be cool :) Thanks
[Android General] gumka77:
I found LOS from 2024 :)

sourceforge_net/projects/andyyan-gsi/files/lineage-18.x/

Regards
[Android General] NightLord:
that didnt boot for me.
[Android General] NightLord:
I actually went as far as to repartition the internal storage so as to increase the system partition so that the gapps version of the image could be flashed.

Otherwise, I think gapps package can be flashed from magisk (but not from twrp, at least I had no luck with that)
[Android General] prisoner416:
I've flashed a few devices like the K88 and samsung with odin, but this is new to me and I don't want to mess anything up. I refurb donated tablets for a charity, so getting this to 11 would be great. What's the best way to apply this image and get gapps on it without risking bricking things?
[Android General] zelipukin:
*** UNKNOWN BASEBAND ***

correspondingly IMEI UNKNOW / NO SIM / NO CELL NETWORK

WIFI & BT are ok

-----------------------------------

Never used my tablet with sim, found an old micro sim, decided to try my sim cutter just in case if my 3yo phone fails so I will be able to cut micro sim and continue to use it in my tablet.

Found that my tablet lost baseband (mobile network modem) I had no idea when and why.

Long story short, 3 days late - trust me - I've tried everything possible - I found a simple solution.

* this part has been deleted because it was stupid*

....

Well, I've found the enemy. This time I noticed that baseband disappeared after I activated DeviceSpoofingTool4Magisk and opened "Magic Hide" option and checked couple of applications but when I come back late after I found "unknown baseband" again, I found that Mobile Data, Mobile Network Configuration and something else also checked but I never did. unchecked, disabled Spoofing - baseband is back.

" I wanted to do better but it turned out as always " russian proverb