yashsingh1/xdaforums huggingface dataset:
[Android Q&A, Help & Troubleshooting] starbright_:
A minor issue here:

I have a Voyo Q101 -arrived here a few weeks ago with Android 7- and updated it (not the firmware, just the apps).

With 2 google-apps (if I remember right google text and google play movie - but not sure) I haven't been able to update. I get a message that signature differs and that I have to remove apps before update/reinstalling them.

This apps are not to remove with "normal" uninstalling.

My question: Did you observe same? Did you solved that (and how)?
[Android Q&A, Help & Troubleshooting] rauliordache:
May you post a screenshot from that message? I think it can be solved without rooting/reflashing the firmware.
[Android Q&A, Help & Troubleshooting] starbright_:
Right now I don't have access to the tablet. But it is same kind of error message as I want to update an app via GooglePlay (or Yelp) but has been installed originally via FDRoid. The difference here is, that this two apps are in r/o area and can't be uninstalled.

(Edit: This error message is gone. Maybe after installing other GAPPS and a reboot).

Regarding battery:

I have also found a few drop downs without any activity. It is strange, that this % doesn't correlate with voltage.

BatteryBotPro recoded a drop from 25%/3.662V to 15%/3.693V in just 8min. Look at the Voltage!!

My assumption is, that battery shows lower voltage if some processes drain it. And if it idles than the voltage will rise again.

I continue usage until it powers off by itself. Than start charging.

Charging with the delivered charger (stated to give 5V/2A) gives me 5%/15min or 20%/h.

But I can't reach a level higher than 63% (device off). This 63% I get after around 3,5 hours. Sic !

After booting and unplug/plug power charging continues til 100% in a few minutes.

A hint to others who don't want to get wake up by unexpected low_battery warning at night:

To get rid of this I renamed the sound file low_battery.ogg.

But it still gives a vibration for the final shutdown.
[Android Q&A, Help & Troubleshooting] lakeconstance78:
Hello everyone,

I have solved my IMEI Problem with a few simple steps - after a week of trial and error ;)

Here is my solution:

1. Write down your IMEI from the sticker of your VOYO or from the package.

2. Download Android 7.0 from the VOYO page -> http://en.myvoyo.com/xiazai/Win%20Pad/VOYO_Q101/down/

3. Flash it with the SP Flash tool (open scatter file and format and download) -> https://spflashtool.com/

4. Download TWRP vor VOYO -> https://apjr.needrom.com/2018/01/Voyo_Q101_4G_Recovery_TWRP_3.1.1-0_by_jemmini.zip

5. Flash it with the SP flash tool (open scatter file), DOWNLOAD only.

6.. Start your VOYO, access developers access, activate USB-Debugging.

7. Power of your VOYO.

8. Download magisk. -> http://tiny.cc/latestmagisk

9. Save the magisk zip on a SD card.

10. Start your VOYO by hold Volume+ and Power button, then select recovery.

11. Mount your SD card, install magisk, wipe Davlik, reboot (do not install TWRP).

12. Now you have root-access on your VOYO.

13. Download SN-Writer tool -> https://snwritetool.com/

14. Start SN-Writer tool, select only IMEI and Dual-Sim

15. Select MD_1DB and add the file "BPLGUInfoCustomAppSrcP_MT6735_S00_MOLY_LR9_W1444_MD_LWTG_MP_V117_1_lwg_n".

16. Select AP_DB and add the file "APDB_MT6735_S01_alps-mp-n0.mp1_W17.10".

17. Press save and go back to main menu.

18. Click start, type in your IMEI, press OK and reboot your VOYO. -> It will take some time to write your IMEI.

19. If 18. doesn't work, power off your phone, connect it to your PC and start your VOYO.

20. Finished! :good::cowboy:

Have a nice day.

Ben.
[Android Q&A, Help & Troubleshooting] starbright_:
For those who wants to get rid of the Camera button in Navigation bar:

There is an app in play store: "Custom Navigation Bar".

Nevertheless I am not really happy with the launcher. Can't change background, can set homescreen and worst - from time to time icons disappear from the screens when changing screen or orientation, mainly to portrain mode (which I use for reading).

I replaced it with Novalauncher.
[Android Q&A, Help & Troubleshooting] matax1970:
Voyo i8 pro

Hi everyone. I have a problem. I installed a rom from Voyo Q101 on Voyo i8 pro. The ROM is working properly, but it has become 3Gb ram on 2Gb ram. Could someone have the original Rom with Voyo i8 pro? Because I can not download from Chinese websites.
[Android Q&A, Help & Troubleshooting] lakeconstance78:
You can try to translate the Chinese site with Google translate?

https://translate.googleusercontent...700201&usg=ALkJrhgXuZqt8CRrLcK7Xosy7Kl-QplsVQ

Ben.
[Android Q&A, Help & Troubleshooting] matax1970:
i8 pro

Hi. Yes. I translated in Google, but if you want to download rom then you have to register in BaiduDisk and this is impossible.

Roman
[Android Q&A, Help & Troubleshooting] Palm Trees:
Use the baidudl extension for Chrome https://github.com/Kyle-Kyle/baidudl then you can download what you need.
[Android Q&A, Help & Troubleshooting] lakeconstance78:
Hey Roman,

here are the i8 pro files on my gdrive:

https://drive.google.com/folderview?id=1MWEy3DZqQnhD4DWsB7Iqg-T3mQzE3Vhc

Ben.
[Android Q&A, Help & Troubleshooting] matax1970:
i8 pro

Hey Roman,

here are the i8 pro files on my gdrive:

https://drive.google.com/folderview?...Iqg-T3mQzE3Vhc

Ben.

Ben, you are great! I tried to download different ways and there was always a download error and an end. Even as colleagues suggested how to skip it, but it was always premature. now I have like new rom and with all twrp, busybox, xpose, and the most is 3gb ram.

I am sorry for my English but how can I advise you how to do everything with Voyo i8 pro thanks to you.

RGS Roman
[Android Q&A, Help & Troubleshooting] lakeconstance78:
I have no idea how it works on I8, but you can try it the same way like in my post https://xdaforums.com/showpost.php?p=75676366&postcount=345
[Android Q&A, Help & Troubleshooting] ayr4n:
Hey Guys,

i try to flash the latest version on the website from voyo but now i cant use my tablet anymore :(

Could anybody help me ? i cant boot the tablet. i get pixel errors on the screen and then a bootloop. (see picture)

picture of my tablet with pixel error
fs5.directupload.net/images/180308/7wwvcws6.jpg
[Android Q&A, Help & Troubleshooting] matax1970:
Buddy, write more info. What a Voyo model because there are different models and it looks like you have bad rom flash.
[Android Q&A, Help & Troubleshooting] ayr4n:
Hey m8, thanks for your answer.

I have a Voyo Q101 4G Tablet.

I downloaded the Stock ROM from the Homepage of Voyo (Q101 VOYO 5M 7.0).

Flash it with SP Flash Tool. After the Flash the logo from voyo comes, then android and it stucks in a bootloop.

After a few loops i see this pixels on my screen. Also when i start on recovery mode, i get the same pixel error when i start the "root integrity check".
[Android Q&A, Help & Troubleshooting] lakeconstance78:
Have you tried "Format and download" in Flash Tool?

You can also try a older Android from the Page.
[Android Q&A, Help & Troubleshooting] ayr4n:
Yes, I have unfortunately already tested "Format ALL + Download".

On the Website from Voyo there is only one ROM, but i found older versions somewhere else but have the same Problem.
[Android Q&A, Help & Troubleshooting] matax1970:
For owners wondering about the Chinese boot menu (when pressing Vol- & Power during the start): here are the translations, thanks to my Chinese buddy

1. factory mode

2. automatic test

3. manual test

4. single test

5. test report

6. adjustment test item

7. erase eMMC

8. version information

9. reboot mobile phone

I will try to get translations for submenus as well, out of curiosity about test modes and functions.

Line item 7 may be the 'factory reset' so be careful when playing with this Chinese menu!

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Try this method No. 7 then again flash rom
[Android Q&A, Help & Troubleshooting] ayr4n:
Thanks Bro, i try this now but still same Problem. After flashing i get a bootloop and then the pixel error after a few boots
[Android Q&A, Help & Troubleshooting] matax1970:
ok, how do you use sp flash? I use SP_Flash_Tool_v5.1628_Win
[Android Q&A, Help & Troubleshooting] ayr4n:
I use "SP_Flash_Tool_v5.1804_Win". Start as Admin. On the Tab "Download" i choose the "scatter-loading file" from the ROM i have downloaded from Voyo Homepage. The dropdown menu is on "Download only". I press "download" on top and then connect the tablet with the pc. after that flash starts.
[Android Q&A, Help & Troubleshooting] matax1970:
Try the older version of the sp flash. You can download the rom again because it may be some error. You just need to combine to take effect..
[Android Q&A, Help & Troubleshooting] ayr4n:
now i have try it with an older version of "SP Flash Tool" and download the ROM again. Still the same Problem :( im freaking out slowly :(
[Android Q&A, Help & Troubleshooting] matax1970:
I do not know what may be wrong. You can see on the removal that the system wants to run so I think there is a damaged graphic or display. I do not have an idea what it can be. Maybe someone will speak better. Regards

Roman
[Android Q&A, Help & Troubleshooting] santamanga:
As I just wrote you in German, read through all this thread, s.o. a couple of posts before you also had the pixel bootloop. You most probably need to downgrade from android 7.
[Android Q&A, Help & Troubleshooting] ayr4n:
Hey santamanga, i also try to flash older versions but after the flash i have still the same problem.
[Android Q&A, Help & Troubleshooting] starbright_:
Thanks, but even with translation it is not clear what is behind of it...
[Android Q&A, Help & Troubleshooting] DaMeZz:
hi all. i bought the voyo q101 4g phablet from gearbest received it last week i straight away updated it with the new firmware from voyo website tablet stuck in bootloop and screen goes funny i tried emailing voyo twice they dont reply gearbest wont help me . im hoping someone here can help me get the correct firmware please i appreciate any help guys thanks in advance.. also how can i tell which screen i have??
[Android Q&A, Help & Troubleshooting] ayr4n:
Hey dude, i have the same problem. If you find a solution please let me know
[Android Q&A, Help & Troubleshooting] santamanga:
Dudes, I still think one of the 4 different firmwares in the initial post of this side should help...

http://4pda.ru/forum/index.php?showtopic=832099
[Android Q&A, Help & Troubleshooting] ayr4n:
I've tested all four. None of them worked. :(
[Android Q&A, Help & Troubleshooting] Krzysiekkk`:
[MENTION=8994247]ayr4n[/MENTION] - you could check also those two roms for Huawei displays - found dedicated thread for Voyo Q101 on italian forum androidiani.com/forum/tutti-gli-altri-tablet/538608-thread-ufficiale-voyo-q101-4g-phablet-10-1-a.html .

I don't know if there are the same as those from 4pda.ru thread, but they are worth trying.. ;)
[Android Q&A, Help & Troubleshooting] ayr4n:
Thanks for your help, but I had tried both versions (Huawei & Samsung) unsuccessfully.
[Android Q&A, Help & Troubleshooting] DaMeZz:
same here i have tried every Rom that i found on google with no success ... 6924266912577 that's the barcode I have on the box.. if some one that has same barcode and can do a twrp backup please share
[Android Q&A, Help & Troubleshooting] santamanga:
That sucks! There must be a working 6.0 or what it was... Rom somewhere!
[Android Q&A, Help & Troubleshooting] DaMeZz:
i got a twrp backup off my friends tablet which is the same as mine . my problem is when i try to restore it in twrp it reaches 4% then screen goes funny and turns off. any ideas how to fix the issue?
[Android Q&A, Help & Troubleshooting] Krzysiekkk`:
[MENTION=9005038]DaMeZz[/MENTION] - do You still have access to your friends q101 - as I searched on XDA there is alternate method to backup firmware on MTK devices - based on this tutorial "MDRT Factory ROM BackUp.pdf" (found in this topic https://xdaforums.com/showpost.php?p=37849391&postcount=284) - could You try backup it with this method? Don't know if this is the right way, but atm I don't have enough time to search XDA
[Android Q&A, Help & Troubleshooting] DaMeZz:
im unable to download the pdf file.. ive tried everything nothing worked.. another problem is my friends tablet when i enter twrp it asks for password no i idea why it asks but i chose cancel and did the backup dont know if thats the problem for not workin?

also finally got a reply from voyo asking me when i bought the tablet so i gave em my barcode and asked em for the firmware as soon they send it to me and works ill post it here
[Android Q&A, Help & Troubleshooting] Goldi6:
Voyo Q101 is not charging, it is stuck at 42%. Doesn't matter wich charger I use. It shows charging in the right top corner but thats all. Any solution?
[Android Q&A, Help & Troubleshooting] mw210461:
These devices seem to have serious issues with the battery voltage and percentage controls:

- one other user (see above) saw his unit depleat the battery to the rock bottom voltage, causing collapse

- mine does the OPPOSITE: the percentage drops to 1% while the battery still has 3.75V , far from being empty

Your description sounds like a corrupted percentage calculation, or a dead battery.

First and foremost use the VOLTAGE control app mentioned above to check the TRUE battery reading. If the battery charges correctly it should reach 4.15V or more after a refill. Then try to use battery calibration tools to force the Android system for a 100% adjustment in the binary file. You may need root for this, not sure (I am not a real wiz kid in this area).

As to SIM: I read (elsewhere, 4PDA.ru?) that the SIM card is not always recognized correctly recognized at first.

Even mine does not directly kick in when activating it in the menu. Toggling flighmode or even a reboot may be needed to let the sucker see and access the SIM card.

Mine does work (German Netzclub card, a freebe with some free data volume per month, all I need on the road).

I am currently compiling a list of issues I found with my Q101, will publish it later when things are more clear. It DOES have some quirks around MAC addressing, battery and charge controls, wrong Android version, screen locking issues...
[Android Q&A, Help & Troubleshooting] Goldi6:
Is it possible to open up other frequency bands , like band 20 for middle europe?
[Android Q&A, Help & Troubleshooting] mw210461:
Have you checked the available bands with the engineering code * # * # 3646633 # * # * ?

My Q101 4G shows LTE 20 as available, see the screenshot above.

According to the Russian site these are the active LTE bands for the Voyo and the Teclast 4G devices:

VOYO Q101 4G:

2G: GSM 850/900/1800 / 1900MHz,

3G: WCDMA 850/900/1900 / 2100MHz, Band 1 / 2/5/8

4G: LTE FDD-1800/2100 / 2600MHz, Band 1/2/3/4 / 5/7/8/17/20 , LTE-TDD - Band 38/39/40/41

Teclast TPAD 98:

2G: GSM 900/1800 MHz,

3G: WCDMA - 2100MHz, die TD-SCDMA - Band 34/39

4G: FDD-LTE 1800/2100 MHz, Band 1/3, TDD-LTE Band 38/39/40

I only saw LTE band hacks for other devices, mainly Xiaomi, have no clue about this method.
[Android Q&A, Help & Troubleshooting] Goldi6:
Thanks, seems already activated. Maybe provider is using other frequency. There is no chance to make changes on frequency bands. Seems only possible to turn them off.

Small 2d games are working fine.
[Android Q&A, Help & Troubleshooting] Palm Trees:
Did anyone purchase the upgraded Onda V10 4G tablet? http://www.onda-tablet.com/onda-v10-2gb-ram-10-1-inch-android-7-0-tablet-gold-32gb.html

It's a little pricier than the Teclast and Voyo, but value seems greater, with bigger battery (supposedly), Wireless AC and Android N 7.0.

Full comparison here: http://www.gearbest.com/compare-623365_638092_619391
[Android Q&A, Help & Troubleshooting] mw210461:
The Onda V10-4G has several differences, a different CPU MT6735, running at a lower clock speed.

Funny that it is offered with Android 7.0 and support for 128GB.

Learning that the Teclast/Voyo 4G tablets are running on '5.1' while being sold as '6.0' I am wondering what this Onda has installed?

A Youtube review shows the Onda V10 4G running at Android 5.1...

It appears to be far more different from the MT6753 based Voyo Q101 4G than the mentioned TecLast Tpad 98, as far as I can tell.
[Android Q&A, Help & Troubleshooting] Palm Trees:
The one on YouTube is the 1 gb ram version with the MTK6735 SoC.

The one I'm refering to is the 2 gb/MTK6753 (you can read a review here: https://techtablets.com/forum/topic/onda-v10-4g-android-7-0-tablet/).
[Android Q&A, Help & Troubleshooting] mw210461:
Fine, but even the updated MT6753 Onda is still NOT as similar as TecLast Tpad/Voyo Q101 4G, runs at a lower CPU speed, supports SD cards >64GB, no LTE band 20 etc. And if it really does run on Android 7, it has little to do with these odd 'Android 6.0 aka API 22' devices, with hardly any image sharing possible?

It may make sense to open another thread just for the Onda V10 4G, if there are indeed more owners. Even this Voyo/TecLast topic seems to attract rather few interested people so far, sadly.
[Android Q&A, Help & Troubleshooting] Palm Trees:
At 4pda they are discussig the possibility of porting the Android 7.0 firmware from this Onda tablet to the two devices you take interest in. Oukitel U13 runs MTK6753 1.3 ghz and got high praise. None of the tablets support band 20 - or do they? Have to enter 'Engineering Mode' to find out, but bare in mind these tablets were designed for the Chinese market. Can't trust the 64 GB limit - there are cases of people having success using cards with more gb than "the limit" (on other devices).
[Android Q&A, Help & Troubleshooting] mw210461:
Interesting news about the Onda/Voyo project, sort of surprising to me!

But as said earlier I was tickled to have discovered that my (and other's) Voyo Q101 4G tablet DOES support LTE band 20, see the attached screen shot again.

While it is great news that the Russians seem to prepare a path to upgrade the outdated and 'fake' 6.0 system to the Onda '7.0' level, I am not sure if I want to give up the unique band issue. Living in Germany I am sort of dependent on this odd band 20, if I ever want to get the proper SIM card to use it. Is a bare 7.0 'worth' more than 5.1 plus LTE20, YMMV?

Wouldn't it make more sense to offer a good and working recovery tool and instruction method for us Voyo users first? Or a customized Voyo upgrade to Marshmallow that does not destroy its LTE support?

For now I am very happy to have a stable root (albeit still Kingroot; the conversion to SU failed). And am pondering about the attempt to install the xposed framework, afraid to cause havoc in this hybrid

5.1/6.0 thing with almost no way back.
[Android Q&A, Help & Troubleshooting] Palm Trees:
To find out whether the Onda V10 4G supports Band 20, try asking the person who did the review at techtablets.com, to check which bands are supported or ask at 4pda (if you are able to register, I've had zero luck so far).
[Android Q&A, Help & Troubleshooting] Pxoeb6mU:
I haven't gotten the two tablets yet that I ordered from GearBest, so I couldn't do any experiments on my own yet, but:

The first russian link in this thread links to a Voyo_Q101_TWRP_3.1.1-0.img that supposedly works with this table.

https://drive.google.com/file/d/0B4TxwXoR2Nq3eXJxTFpFRkxlN28/view

has anyone tried to use adb to reboot into the bootloader, then use fastboot to do an oem unlock (assuming it's locked to start with...) and then boot twrp without flashing (fastboot boot Voyo_Q101_TWRP_3.1.1-0.img)?

That should then allow to use twrp to backup the original unmodified bootloader, recovery, and system partitions, which should make further experimentation a bit safer.

Assuming dm-verity isn't active (which should have already caused trouble with kingroot if it is), it should be possible to install the UPDATE-SuperSU.zip to get a "clean" root with SuperSU... or maybe experiement with Magisk.
[Android Q&A, Help & Troubleshooting] Palm Trees:
Forgot that the review at techtablets included screenshots, so here's the proof - Onda V10 4G does come with Android N 7.0 (API 24):

https://photos.google.com/share/AF1...?key=VDRiRFp2V29SczJWQUFsMkw1b2VSbkJROGZTclhB

Did anyone measure the battery life for the VOYO Q101 using PCMark for Android Benchmark?
[Android Q&A, Help & Troubleshooting] mw210461:
I am currently doing some battery testing, using 3C's battery tool and a reliable USB multimeter.

Some observations so far:

- originally the percentage counter was down to 1% at a battery voltage of 3.74V, way too fast

- I let the thing run and watched the voltage drop to 3.39V (always showing "1%") over several hours before getting cold feet and shutting the device off manually. It simply would NOT do it by itself. See the other user talking about his low-volt issues above, maybe it will never shut down at all?!

- a full charge from 3.39V to 4.16V only consumed 3900mAh, making me wonder whether the installed battery is really a 4900mAh model?

I am repeating this test today, with the same settings. My USB meter is very precise, integrates power over time, works well for my other devices.

- the screen brightness setting is the real energy hog; all other functions like WLAN, GPS, CPU load etc have little impact on the overall runtime. Set at the lowest level I can get almost 8hrs usage (screen on time), but only 4hr or so with a bright screen when sitting outside in the sun.

- currents will exceed 1A with a bright display, about 500mA with a dimmed one

I will deliver more results at a later time, trying to break them down by features (camera, WLAN, GPS, CPU).

My three most urgent questions:

1) how can I obtain a FIXED MAC address? Is there a way to alter the associated WiFi files somewhere in the Systems area?

2) Which Xposed framework should I install in this hybrid 5.1/6.0 Android system? I do not want to corrupt it as I have no real recovery in case of bricking it.

3) my preferred launcher (HAL) crashes frequently, esp. after a shutting the tablet off. And competes with the pre-installed launcher every time, asking about which to use. I have not found a way to freeze the built-in launcher, and have not found an app that will automatically restart a crashed app right away. Does such an app exist, will it restart my HAL launcher reliably?

Otherwise I am quite pleased with this cheap thing; almost all apps do run (some camera apps won't)
[Android Q&A, Help & Troubleshooting] Pxoeb6mU:
Well, 3.39V shouldn't be a problem. (Assuming the measurement is accurate). The operating range of most LiIon cells is 3.0-4.2V. (e.g. I got a bunch of 16350's with protection circuit, which triggers at 2.95V).

Though it's true that beyond about 3.4V or so, voltage drops off quickly, see the discharge curves here as an example: http://lygte-info.dk/review/batteries2012/Fenix 16340 700mAh ARB-L16 (Orange-Black) UK.html

So it makes sense that most devices turn off around 3.4V to give them enough time to properly shut down before the voltage drops too far.

If this device doesn't turn off itself properly, it's possible that the battery they used does have a build in protection circuit which triggers at 3V or so (after which the measured voltage would be 0 until the protection circuit is reset with a few voltage spikes, which most standalone LiIon charges know how to do, but the build in charging circuit might not, and might not even try to charge if the measured voltage is 0, which would explain why people have trouble getting it to charge again once discharged too far).

Have you tried if you can boot the tablet into the bootloader and then use fastboot to boot the TWRP I linked above (without flashing it)? If yes, you should be able to make a proper backup of your system partition before experimenting with Xposed (and also be able to install the xposed uninstall zip if something goes wrong).

I can't check it myself yet as my two tablets only just shipped today from GearBest, but I would assume this is actually a 5.1 and they just changed a few lines somewhere to make the settings show 6.0, I doubt it's truly a "hybrid".