yashsingh1/xdaforums huggingface dataset:
[Teclast X98 Air 3G] Petepe10:
The only place I see is in /system/etc, the thermal sensor config xml file.

This is the part:

<Sensor>

<SensorID>2</SensorID>

<SensorName>skin1</SensorName>

<SensorPath>auto</SensorPath>

<InputTemp>temp</InputTemp>

<LowTemp>trip_point_0_temp</LowTemp>

<HighTemp>trip_point_1_temp</HighTemp>

<Threshold>

<ThresholdTOff>0</ThresholdTOff>

<ThresholdNormal>55000</ThresholdNormal>

<ThresholdWarning>65000</ThresholdWarning>

<ThresholdAlert>70000</ThresholdAlert>

<ThresholdCritical>75000</ThresholdCritical>

</Threshold>

</Sensor>
[Teclast X98 Air 3G] SUMMERBREEZE:
I am afraid, on 8th January, OKQI (Anna Fang) will send the defected dual boot tablets to people (at least most of them)

They did the same on 11st november too, I and lots of people here had bought their tablets on nov 11st and many of them defected. so be careful, first contact to the seller and be sure that they are sending you the good one

---------- Post added at 07:47 PM ---------- Previous post was at 07:35 PM ----------

so do you think [MENTION=323861]ImJamIN[/MENTION] did changes in here? but the problem is not thermal threshold warning, cos tablet freeze at even 46-47 C at gaming.
[Teclast X98 Air 3G] slayer_lionhart:
I did it 6-7 times. The first ones it told me the problem of the temperature and so, but not in the last ones, no frozen screen, I think everything is ok.

Enviado desde mi Nexus 4 usando Tapatalk 2
[Teclast X98 Air 3G] szczurekbe:
Sorry for all for placing the in error, my is C9J7, I do not know how it happened, Most probably too much beer :(
[Teclast X98 Air 3G] arthurdub:
I have 3 storage/memory questions about my C9J7 dual boot3G.

Is anyone successfully running apps (like games) from their micro SD, if so how and with what app?

If you root your device to remove Chinese apps which one should you not remove because of operational issues or update issues?

Is there a problem storing stuff on an micro SD for dual boot. will you have to partition the SD?
[Teclast X98 Air 3G] Grayie10:
Hi , because my tablets are freezing while playing games , contacted seller she as told me to go to telecast .com and download new software , will this effect my tablet has I have flashed it ??
[Teclast X98 Air 3G] Olawanle:
teclast x98 air audio problem

please i have this teclast air x98 3g.i used a earphone with it which changed the audio output when playing music.i hardly hear anything from the speaker,please HELP ME thanks in anticipation.
[Teclast X98 Air 3G] SUMMERBREEZE:
who is the seller? i am curious :)

No, flashing the software wont help anything. Cos this is not a software problem.

Did you try setting intel turbo mode off?

---------- Post added at 08:21 PM ---------- Previous post was at 08:17 PM ----------

Please use a 3 pole 3.5 mm audio jack earphone. not the one with mic integrated.
[Teclast X98 Air 3G] muzetas:
Could you write on which value should I change the setting?

Please just past the line code here. There are a lot of values and I don't know which one should I change.

I'm sure that is the termal problem. My tablet was freezing on benchmark, RR3 and other games. I observed that it always freezed when temp rised up to more than 50C so I did the fix from first page. I put the copper plate on cpu, gpu and on the metal lid which is covering them. Now in idle temp is 25-35 before that was around 40-50. I can run benchmark around an hour the same with the RR3 and other games, but always when the temp is rising up to 50-55 (I don't know exacly) the tablet is freezing, so I thought that I can change this value to solve this problem.

Under the windows the problem didn't exist, the temperature is rising >65 and all is working great.
[Teclast X98 Air 3G] bonlives68:
how to move apps to a SD on a Teclast x98 air 3

Hi I have a a Teclast x98 air 3g which is the best tablet in have ever had ? there is 1 problem though i keep running out of space when installing apps? how do you redirect apps to your SD card????
[Teclast X98 Air 3G] Grayie10:
Hi Tina wu ', wrote, go to teclast. Com Website update to newest firmware, but I can't find any updates on this page,

It's just annoying when they keep freezing, or some games say thermal load decreasing brightness

Thanks
[Teclast X98 Air 3G] Olawanle:
No sound without earphone

Thanks SUMMERBREEZE

please what i meant was that no clear sound when i remove earphone or without earphone,i ignorantly used a 2-pole earphone.i contacted the seller he said i should upgrade the sound driver.please help me
[Teclast X98 Air 3G] SUMMERBREEZE:
so you are using Windows then? cos in Android i dont know anything about sound driver :silly: it should work normally
[Teclast X98 Air 3G] Grayie10:
We're do I turn turbo off please
[Teclast X98 Air 3G] Petepe10:
Let's wait for him to answer. I do not fully understand how the whole dynamic regulation of speed etc works, I can only guess. Mine is fairly stable, not fully. Cpu's are allowed to get very hot and should be stable throughout, but it could be that a low voltage makes it unstable at cooler temperatures like in the 60ies. For the puzzling skin1 sensor I have no idea. Obviously you do not want a tablet shell that gets hot. Could it be that an energy saving or temp reduction strategy kicks in that then leads to a feeze? Who knows. Google search reveals next to nothing, alas. In any case, these are workarounds just as the bios/turbo one that do not solve the primary problem probably. But some experimenting may be useful.
[Teclast X98 Air 3G] smartchip:
I'm assuming we are talking about Android. Tutorials here worked for me:

http://androidcreations.weebly.com/how-to-setup-link2sd.html

You have to be rooted. I have 2 partitions, ext4 for Link2SD and an exFAT to share between Windows and Android. I haven't been able to figure out how to mount an NTFS partition for the Windows side so that store apps can also go to microSD, so if anyone knows how, I'd appreciate any help [emoji4]
[Teclast X98 Air 3G] ImJamIN:
Yes it is this.

My problem was that when tablet arrived at 56° it freeze. So I have changed it to 60 ( ThresholdNormal) and now it freeze at 61°. :rolleyes:

So now I can finish benchmark if I stay under 60°.

I think that this sensor it's only for skin, and natural for our hands. But it isn't so important for cpu because it can reach 85° without any problem.

FYI my temperature in idle it's about 30/35° .

I think that we can modify governor or add a new governor like lulzactiveq to use better every core of cpu (now all 4 cores work together and the temp goes up more easily)
[Teclast X98 Air 3G] SUMMERBREEZE:
here :

http://xdaforums.com/showpost.php?p=57717907&postcount=3655
[Teclast X98 Air 3G] matic007:
Ok so I wanted switch the bios from Frontier android to windows guide, so I started with the dual boot guide and flashed the bios with the .bat file from the tablet. After I rebooted I entered the bios, rebooted again and I can still go to my previous window 8.1 sytem, and Its in 60Hz.... Did something go wrong because I thought I have to instal android, then a fresh installation of windows, delete android and go from there....
[Teclast X98 Air 3G] slayer_lionhart:
I have been playing 10 minutes in RR3 and 10 min in Frontline Comander 2 and I didn't have any problem, just told me the brightness 2 times but no freeze or something like that, after this 2 games I passed the OpenGL ES 3.0 benchmark 7 times, the temperature was no very high (38º).

I have a c9j7 dual boot bios.
[Teclast X98 Air 3G] SUMMERBREEZE:
please correct me, the temp we see on cputemp app, is not the main temp for cpu,

so for example when we see 55 C, it is actualy much more cpu and maybe it hits the limit and then it defends itself and get freeze? i didnt know the temp sensor was for only skin, i thought it was in the root of the cpu :mad:
[Teclast X98 Air 3G] Petepe10:
Thx. So why do you think it freezes when the threshold is reached? What action is taken by the system? And what exactly is the sensor measuring?
[Teclast X98 Air 3G] zooster:
I think there's a twerp in the kernel, badly compiled. If that's the actual cause then the kernel doesn't act correctly when that threshold is reached.

Maybe someone can contact Teclast to suggest this. They should thank XDA because this.
[Teclast X98 Air 3G] ImJamIN:
are you sure that after 7 times of benchmark you have reached only 38°? :eek:

That's most probably.

I'll try to do some more tests about this
[Teclast X98 Air 3G] SUMMERBREEZE:
but it also freezes in games in windows, what about this? (less than android though) [MENTION=4777359]acc007[/MENTION] please lighten us.

i am so sure that the android rom and kernel badly compiled, but why some devices dont get any freeze with same rom and kernel with same HW? for example [MENTION=2198172]mirek190[/MENTION] has 3 devices and no problem at all

---------- Post added at 09:57 PM ---------- Previous post was at 09:55 PM ----------

please put CPUTEMP on the screen overlay and do the benchmark test at least 2-3 times and record the video for us. I dont believe after 7 times, the highest temp is 38 C :rolleyes:
[Teclast X98 Air 3G] slayer_lionhart:
I watched the temperature with CPU-Z I don't know why it told me that xD Sorry.

With CPU temp with the screen overlay and doing the benchmark test (5 times) the temperature goes to 63º (maximum). Even with that I don't have frozen screen or something like that fortunately.
[Teclast X98 Air 3G] acc007:
Yes... My tablet freezes not only under android opengl 3.0 apps, but also when running 3d mark for windows.
[Teclast X98 Air 3G] renard01:
Hi,

just my 2 cents on my Teclast (HW revision C9J7, dual-boot).

I seem to be a lucky guy ...

- NO problems running 3D games whatsoever (asphalt 8, temple runner, 3D-mark, Unity benchmark) BTW: Don't know what the sense of unity benchmark is except to test stability ... I let the loop run for 40 minutes and temps went up to 57C and no warnings about throttling, reduction in screen brightness etc.) I know that Intel CPUs can stand much higher temperatures, I used to overclock when i was younger. They can at the very least bear 85C, so if the readings are accurate, I am on the safe side. I think that the devices that freeze while running 3D games suffer more from an undervoltage problem than from overheating. As a side note: I had similar problems with my Onda V989 (Allwinner A80 based) which freezes immediately on some CPU intensive benchmarks when running on the battery, while these benchmarks run flawlessly when it is running with USB power plugged in.

- GPS is there and is working well (not exceptionally well, but largely enough for proper car navigation, tested 3x it keeps the lock throughout the whole journey with a decent accuracy (8-16m).

- Battery life is so so ... 5 hours of video playback is nothing to cry home about, but it's acceptable to me

- To me the tab is very responsive in windows and in Android, that's a great experience.

- Movie playback with MX player (Android) and VLC player (Win) is working like a charm. I have yet to come across a single piece of video which it won't play smoothly.

- Of course the playstore problem is nothing short of embarrassing for Teclast, but it can be solved as we all know.

- I rooted the device and solved the playstore problem. The downside of this is that it won't install the new upgrade ... anyway, I am good with the current firmware.

If you get a fully working device (HW wise) I think this tablet is an absolute bargain. Win/Android/fast/3G/GPS/good screen etc. for 230$, this sounds like good deal to me!!

Last but not least: I am looking for a good BT keyboard with a mousepad ... any recommendations? I type with 10 fingers so it should not be too tiny.

Thanks for that great thread, albeit you need some time to go through :)

regards,

Renard01
[Teclast X98 Air 3G] zooster:
Maybe the problem is inside both thermal threshold and voltage. I mean, when that threshold is reached then voltage (and frequency?) changes. Some chip can handle different voltage other chip doesn't.

Usually in overlclocked desktop pc the OS freezes when the voltage is too low for the current frequency. So maybe there's some error in frequency and voltage handling when a certain temp is reached, some good and lucky chip can survive this error others not.

One explanation could be that they set a low voltage table, at the limits of the relative frequency, just to save battery with a chip non exactly known to be a battery saver. But pheraps they did a mistake in thermal throttling, on mobo components or just software side, making it in a way that voltage is lowered before the frequency, therefore not simultaneously, leading to freezes in not lucky chips.

A nice try would be to cool cpu and memory chips with something cold (ice or something) and run heavy games just to see if they freeze when there's no thermal throttling.

Anyway it's clear that c9J7 id doesn't ensure you are freezes free. So now we have to look forward to c9j8 and hope they solved the problem with this new revision.

Anyone here with c9j8 disposed to try heavy games?
[Teclast X98 Air 3G] SUMMERBREEZE:
thank you, you lighten me up. i also think it is a voltage issue. some chips are ok but some not all with the setted voltage.

And this explains why when i turn the turbo mode off, i can play any game or pass the benchmark with no problem, cos the cpu speed never changes and also voltage stays stable etc.

the bold place i marked, it was tested in teclast chinese forum and also here by one of members, and tablet didnt freeze at gaming at all but it was freezing before..
[Teclast X98 Air 3G] Petepe10:
Some interpretation of throttling behaviour

I am new to all this, but here is my interpretation of the throttling behaviour as specified in the two xml files in system/etc.

There are 4 so called zones that can induce throttling. In each zone there are 4 states, from normal to critical. Throttling means that you go up one level, eg from normal > warning > alert > critical, dethrottling the reverse.

Zone 0 is triggered by sensor cpu0, with thresholds between 82 to 90 degrees. The cooling action is to change the SoC behaviour.

Zone 1 is triggered by "skin1" sensor, with thresholds 55 75 degrees. The actions are 1. brightness, 2. battery and 3. SoC.

Zone 3 is triggered by battery temp, range 48 68 degrees. Actions as zone 1.

Zone 4 is triggered by SoC temp, range 85 125 degrees (!). Action is change SoC.

If there is a link to freezing it is probably in zone 1, as the other triggers are never reached I suppose.

Btw, I assume that the kernel routines use this info as configuration parameters at runtime.

Focussing on zone 1. The throttling and dethrottling can be active or not, depending on the (de)throttledevicemasks for each level from normal to critical, 1 is on, 0 is off.

The values are

Brightness 0111 and 1110, so throttling is on for warning, alert and critical, dethrottling is on for normal, warning, and alert.

Likewise, for

Battery 0111 and 1110

SoC 1111 and 1110.

It seems there is some room for experimentation here.

A brave person could remove the entire zone 1 and see if the tablet gets fried.

More cautiously the thresholds or masks could be altered.

I still have no clue how the system gets a reading for skin1.

SEE BELOW FOR SUGGESTIONS, BEWARE THOUGH THIS IS NOT WITHOUT RISK.

Reboot probably needed for changes.

Last part of thermal_throttle_config.xml, with potential changes.

<ZoneThrottleInfo>

<ZoneID>1</ZoneID>

<CriticalShutDown>1</CriticalShutDown>

<CoolingDeviceInfo>

<CoolingDevId>1</CoolingDevId>

<ThrottleDeviceMask>

<Normal>0</Normal>

<Warning>1</Warning> CHANGE THIS TO 0 TO SUPPRESS BRIGHTNESS EVENT

<Alert>1</Alert>

<Critical>1</Critical>

</ThrottleDeviceMask>

<DethrottleDeviceMask>

<Normal>1</Normal>

<Warning>1</Warning>

<Alert>1</Alert>

<Critical>0</Critical>

</DethrottleDeviceMask>

</CoolingDeviceInfo>

<CoolingDeviceInfo>

<CoolingDevId>2</CoolingDevId>

<ThrottleDeviceMask>

<Normal>0</Normal>

<Warning>1</Warning>

<Alert>1</Alert>

<Critical>1</Critical>

</ThrottleDeviceMask>

<DethrottleDeviceMask>

<Normal>1</Normal>

<Warning>1</Warning>

<Alert>1</Alert>

<Critical>0</Critical>

</DethrottleDeviceMask>

</CoolingDeviceInfo>

<CoolingDeviceInfo>

<CoolingDevId>3</CoolingDevId>

<ThrottleDeviceMask>

<Normal>1</Normal> CHANGE THIS TO 0 PREVENT SOC THROTTLING?

<Warning>1</Warning> LIKEWISE

<Alert>1</Alert>

<Critical>1</Critical>

</ThrottleDeviceMask>

<DethrottleDeviceMask>

<Normal>1</Normal>

<Warning>1</Warning>

<Alert>1</Alert>

<Critical>0</Critical>

</DethrottleDeviceMask>

</CoolingDeviceInfo>

</ZoneThrottleInfo>
[Teclast X98 Air 3G] kostas-k:
I have installed your ROM and liked it very much. But, now that the v2.01 is out for the C8J7 tablet, is there a way to update my existing rom on dual boot, without losing anything? just update the android system
[Teclast X98 Air 3G] fred7106:
I have tried to install in the dual boot the last ROM V2.01 (C8J7) using the partition.tbl from the sized 8gb tbl, but it stop at 90% with the error no space on the devices: I am using the TBL from the supercow rom for 8GB. Please do you have same hints about which file I need to use or there is the link for an updated supercow rom installation with the new android V2.01/V 2.02

Thanks
[Teclast X98 Air 3G] agunghost:
Same as others, it's OKQI in Aliexpress.
[Teclast X98 Air 3G] mnitstanley:
So you are luckier :P
[Teclast X98 Air 3G] 84.hp.bluestacks:
i am on c8j7 dual boot, v2.0.1 rooted.....every Android 3d games work fine ...no freeze..........only 1 game black screen (not freeze).....

Dead Trigger 2 ............why ???? after the intro (movie)......it just go to black screen .....can anyone try..........

Dead Trigger 1 is ok but not 2....???????????????????
[Teclast X98 Air 3G] ImJamIN:
Which android version have you installed?
[Teclast X98 Air 3G] KyeMillington:
Just bought the c6j7 model off aliexpress. The seller has been really great, regarding communication and it should be shipped by tomorrow.

I've also been watching hendrickson on youtube quite a bit, which helped a lot in making my decision on buying the device.

Just wanted to know if there had been many problems with this model?

Thank you all :)
[Teclast X98 Air 3G] kosrica:
Hello, I am interested in buying this tablet on 8th of January but I am seeing that some tablets are deffective especially regarding freezes when playing 3D games.

What questions should I ask the seller before placing the order to be sure I'm not getting a bad one? Should I request for a specific HW version? Pls advise.

Thank you!
[Teclast X98 Air 3G] djeskoswe:
I did ask Anna about the 3d problems and she says that there are no problems and my unit is a c9j8 , will send my order tomorrow !

Will report back after benchmark and gaming test.

My main area for this unit is win8.1 and vpn / office use.

Br Niklas
[Teclast X98 Air 3G] 84.hp.bluestacks:
official c8j7 version....(download the whole image and re-flash then toolbox root.....not ota)
[Teclast X98 Air 3G] jcespi2005:
You can flash trough fastboot just the system partition, this must work. Anyway, make a backup ;)
[Teclast X98 Air 3G] mirek190:
mirek190_rom_3.0_04.01.2015

Teclast air x98 3g ( c8J7 )

TO FULL ROOT PLEASE USE MY UPDATED TOOLBOX FROM HERE .

SU - updated to 2.43 - now root works without any problem

https://mega.co.nz/#!Mp50gIoD!ErMC5F3Zs9ytatIt5CgOcid4e8nH_f9Qff_FQY0apcw

* ability to flash only system ( data and partitions are not touched ) or full flash.

* system partition 1 GB instead of 1.5 GB -default but you can change it.

* cache 100 MB instead of 1000 MB - default but you can change it.

* data partition 27 GB instead of 25.5 GB - I added other partition tables for data like 1 , 2, 3, 4, 5 ,6 ,7 ,8 ,9 , 10 GB , only android ( 27 GB ) , only windows 27 GB as well ) or default.

* not fully rooted yet -I'm working on it . To full root please use toolbox

* removed all Chinese programs

* busy box

* init.t

* zip alignment

* deodexed

* changed navigation buttons to Android L looks

* resided navigation bar

* removed vol buttons and screenshot button from navigation bar - screenshot you can make pressing vol - and power at the same time.

* battery with percent

* bold fonts on system bar - fonts looks better

* lower min brightens

* microphone gain fix

* clock on the middle of the status bar

* 4 way power menu - ability boot to droidboot, CWM, Hotboot

* some changes in Buildprop for performance.

* some optimizations in Framework but still very simple.

* added. Google services, Google play, YouTube

* google keyboard

* Chome beta

* adblock ( need root )

* resolution changer ( need root )

* ViPER4Android FX - need root now sound is really good and noisy :p

* Apex launcher

* and other things i don't remember :D.

------------------------------- ROM -------------------------------

v3

https://mega.co.nz/#!UwZRhTqR!kE0ahKjiB1Y1Z5qL7LB0iS682-_5Gd7EtOWQJ8YqE4g
[Teclast X98 Air 3G] ImJamIN:
But you have reflash with modded partition ?
[Teclast X98 Air 3G] Cozla:
I have dual boot and I want to reinstall only Android, can I use flash-system_only.xml from your ROM or follow the FAQ #8) and use flash.xml from link in FAQ #8) ?
[Teclast X98 Air 3G] fred7106:
Sorry Mirek the rom include the modifications of the Teclast Roms 2.01/2.02?

Thanks
[Teclast X98 Air 3G] vpx:
Hello,

does anybody have Windows 8.1.Pro with Update VL x86 ISO English, released on 15.12.2014 ?It contains installed BIG update, which is not possible to install on my partition due to insufficient space on System, so I would like to reinstall my Pro with this new one image

Thanks
[Teclast X98 Air 3G] mirek190:
Yes if you use my system only xml then re-install only android ( even all apss that you installed left ) and not touch windows.

---------- Post added at 04:28 PM ---------- Previous post was at 04:27 PM ----------

Is made on the newest rom fom teclast webside.
[Teclast X98 Air 3G] fred7106:
---------- Post added at 04:28 PM ---------- Previous post was at 04:27 PM ----------

[/COLOR]

Is made on the newest rom fom teclast webside.[/QUOTE]

So Mirek if I want install the I need just change the partition file on top directory with the one that i like and use as flash in the Intel tool the full one?

Thanks again
[Teclast X98 Air 3G] mirek190:
So Mirek if I want install the I need just change the partition file on top directory with the one that i like and use as flash in the Intel tool the full one?

Thanks again[/QUOTE]

Yes Exactly .
[Teclast X98 Air 3G] fearxl:
Ça marche!

Thanks you! Some 3d games works.
[Teclast X98 Air 3G] mirek190:
I finally made fulyl rooted rom Jay :)
[Teclast X98 Air 3G] SUMMERBREEZE:
you are very welcome, it is not something i discovered, i just found it in chinese teclast forum and for me all games work without freeze. but when the turbo mode is on, sooner or later, all 3D heavy games freeze (in the beginning, in the middle or later, no chance to play any) so this is a temporary solution till we find the real issue and permanent solution. the only annoying thing is cpu works at max 1.33 ghz speed. but GPU performance not very much affacted
[Teclast X98 Air 3G] maddig:
C9J7 Base ROM based on 1.08 Stock?

Thank you for your job.

Can you make C9J7 Base ROM based on 1.08 Stock?
[Teclast X98 Air 3G] fred7106:
I have not chance any more to have the dual boot menu, and before there is no change to see the icon of windows? Any suggestions?

Thanks to Mirek, just one info, seems the top bar too smaller and are visible the bottom of same word, and the are not the option of OFF, just reboot
[Teclast X98 Air 3G] SUMMERBREEZE:
I am still in contact with them and they say the new batch (C9J8) will be clean, wont have problem with freezing at games. Its hard to believe but they say this is the conformed information from Teclast company. But again as i told before, please ask them to test your tablet with 3D gaming and unity OpenGL ES 3.0 benchmark (at 1080p) a couple of times benchmark tests, before shipment. Tell them that you can wait a few days more for tests, it is still better than getting a defected tablet.