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Alldocube iPlay 40 review: an all-around tablet with some minor compromises

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RedNas74

Senior Member
Sep 20, 2009
138
47
I'm trying to unlock the bootloader, but i get an error from fastboot:

fastboot flashing unlock_bootloader signature.bin
fastboot: usage: unknown 'flashing' command unlock_bootloader

What am I doing wrong? I enabled oem unlocking in developer options and generated the signature.bin
 

AllexBast

Senior Member
Feb 15, 2013
100
67
I'm trying to unlock the bootloader, but i get an error from fastboot:

fastboot flashing unlock_bootloader signature.bin
fastboot: usage: unknown 'flashing' command unlock_bootloader

What am I doing wrong? I enabled oem unlocking in developer options and generated the signature.bin
use a different version of botloader
 
Last edited:

lowfatmilk

Senior Member
Jun 12, 2012
73
9
Samsung Galaxy Note 4
Thanks for the info! It'll save me some grief.

Are there plans to make a TWRP for the iPlay 40 Pro/H then? Don't think i'll try to root the thing before there's a custom recovery for it.

Prolly needs its own thread, to unburden this one of off topic discussions.
 

AllexBast

Senior Member
Feb 15, 2013
100
67
Thanks for the info! It'll save me some grief.

Are there plans to make a TWRP for the iPlay 40 Pro/H then? Don't think i'll try to root the thing before there's a custom recovery for it.

Prolly needs its own thread, to unburden this one of off topic discussions.
Were you able to unlock your tablet?
 

Burs

Senior Member
Oct 24, 2012
498
224
Three questions if someone knows..

1) Does anyone have issues with finding hidden SSID WiFi networks? I enabled the option in settings, but the tablet still cannot find it? Other devices find it without problem. As soon as I configure SSID as visible, it works without issue. Never had such weird case.
EDIT: in order to connect to WiFi network with hidden SSID, one don't even have to configure network as Hidden, and Android handles the configuration properly and make the network visible (opposed to how it was working on previous versions like Pie). If you explicetely configure the network is Hidden (and it is), then the network cannot be found. Sad, but true. Took me some hours to figure out that.

2) It seems tablet doesn't have 5Ghz WiFi support, despite it advertises itself like it's capable to connect to such networks. All my other devices doesn't have this issue, but I cannot see/connect to my 5GHz network no matter what. I use XIaomi AC2100 router which provides both 2.4/5Ghz AP, and this is the first device I have issues when connecting it to that router.
EDIT: this still confuses me. Judging by the specs, WiFi chip should certainly support 5Ghz WiFi networks. Why my tablet cannot connect to such network is beyond my understanding. Anyone?

3) Did anyone flashed "iPlay40(T1020S)-EN-20210526" update from official Alldocube website? Is that Android 11 inside? It weighs at 1.32 GB, so I guess it's some major upgrade? Or is it just fully Android 10 system image?
EDIT: this I won't even try, as I didn't find any other Android 11 images out there. Frankly, this Android 10 is working very well, and I don't really care what if it's 10, 11 or 12.

Right now I'm updated to 20210525, and everything works fine (expect issues above), so if Android 10 provides better performance and experience, I'll leave everything as it is.

Thanks everyone.
 
Last edited:

White_Spot™

Member
Jan 31, 2011
19
13
2) Mine as always connected to 5Ghz wifi so I can´t help you.
3) I think is the complete system and not only an upgrade.
 
Last edited:
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RedNas74

Senior Member
Sep 20, 2009
138
47
3. iPlay40(T1020S)-EN-20210526 is the same as the version you're already running. I flashed it and in about phone the build number is T1020S_V1.0_20210525.
 
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Burs

Senior Member
Oct 24, 2012
498
224
Thanks guys. I'll google some bit more about connecting to 5Ghz WiFi networks. I have some specific apps where I prefer speed over range, so I would like to use 5Ghz. In the meanwhile I've also set up 5Ghz AP on my mobile, and I cannot connect to it either (while other devices can). There isn't any specific option compared to 2.4Ghz, so it should just work. But it doesn't. I also checked WiFi specifications with AIDA, and it indeed shows 5Ghz as supported. I thought maybe different WiFi chip ended up inside my tablet (hint: chip shortage), and I also had similar cases with Chinese tablets in past where manufacturers put different components and claiming it's the same exact model as everyone else have. So it wouldn't be the first time.

One more quick question: do your tablets shut down automatically when battery reaches 15%? I just had quick notification saying battery is low, and few seconds later it just shut down. I know it's not good for the battery to be depleted completely, but I would like to have some time to finish what I was doing, then shut it down myself, or at least have time to grab a charger. And no, it wasn't like the battery was completely depleted, because when I connected the tablet to charger, it was showing 14-15% and charging. AIDA also shows battery's declared capacity is 6000mAh, so I doubt it's anything related to it.
 

White_Spot™

Member
Jan 31, 2011
19
13
So my daughter last day tell me the tablet as started to shut down again with the temperature error as in the beginning.

Using Simple System Monitor app it is possible to see the temperature rising and after a while the tablet shutdown.
Using the Battery Repair Life app, no problem was detected to the battery. I have again unplug the battery to see if it solves the problem, but I have no time to test it yet.
Today or tomorrow maybe I have a little time to test again if unplug the battery was the solution to this problem.
 

Mad_god44

Member
Oct 25, 2021
5
0
I'm trying to unlock the bootloader, but i get an error from fastboot:

fastboot flashing unlock_bootloader signature.bin
fastboot: usage: unknown 'flashing' command unlock_bootloader

What am I doing wrong? I enabled oem unlocking in developer options and generated the signature.bin
so I'm having the exact same problem and I have no idea how you unlocked bootloader so how did you unlock it?
 

RedNas74

Senior Member
Sep 20, 2009
138
47
so I'm having the exact same problem and I have no idea how you unlocked bootloader so how did you unlock it?
You need the fastboot version from this post and it will work.

 

Mad_god44

Member
Oct 25, 2021
5
0
You need the fastboot version from this post and it will work.

Those are the fastboot files I've already tried and still says the same thing
 

ar_aja

Member
Aug 30, 2013
5
2
LG G3
OnePlus 3T
Those are the fastboot files I've already tried and still says the same thing
I was successful thanks to previous comments, these were the steps and files:
-Extract files in a folder
-Go inside the "adb-fastboot" folder, in the address bar write "cmd" and hit enter to open a terminal
-Run
Code:
adb shell getprop ro.serialno
-Copy and Install SpreadTrumTools.apk in your tablet
-Open the app, allow permissions and input the serial you just obtained

InkedAlldocube_iPlay_40_2021_10_29_00_08_55_LI.jpg

-Tap Generate
-Copy the file "signature.bin" inside the adb-fastboot folder in your computer
-In the terminal run
Code:
adb reboot bootloader
-Wait for the tablet to boot into fastboot, if for any reason boots into fastbootd, navigate to reboot to fastboot
-In the terminal run
Code:
fastboot oem get_identifier_token
-Run
Code:
fastboot flashing unlock_bootloader signature.bin
Unlock_Bootloader.png

-Follow instructions in your tablet (press volume down)
-If everything is successful you should see something like this
WhatsApp Image 2021-10-24 at 10.38.04 PM.jpeg

Hope it works for you
 

Attachments

  • IPlay40 Unlock Bootloader.rar
    7.1 MB · Views: 23

ar_aja

Member
Aug 30, 2013
5
2
LG G3
OnePlus 3T
Can someone clarify these steps a bit?
For t1020s
TWRP https://drive.google.com/file/d/1lsmYtOESkvI4vz3tLgg9P5CsxaZ3g2fr/view?usp=sharing - flash to rd https://4pda.to/pages/go/?u=https://mega.nz/file/5RFymB6Q#KjfDboHeduvuXvBi1SDLboO-48o0bmMhBC5FyTIwAVM&e=108966608
firmware global https://www.alldocube.com/en/firmware/alldocube-iplay40t1020s-firmware-download/
ModSuper for gsi https://drive.google.com/file/d/1YRZbiTEEnyds6kxrvXNI2-5gRwjCbE4l/view?usp=sharing install for section super
format data - yes
restart adb recovery
gsi android 10 arm64 a-b - https://sourceforge.net/projects/andyyan-gsi/files/lineage-17.x/ install for section system
format data - yes
restart adb recovery
backup boot
install zip https://github.com/topjohnwu/Magisk/releases/tag/v23.0
restore boot
restart system
configure gsi rom
restart adb recovery
install gapps android 10 arm64 pico https://opengapps.org/
restart system
I've tried flashing twrp but everytime i send the commands
Code:
fastboot flash recovery recovery.img
fastboot flash vbmeta vbmeta.img
takes ages (upwards of 3h each) and i cant boot to twrp anyways
 

AllexBast

Senior Member
Feb 15, 2013
100
67
Can someone clarify these steps a bit?

I've tried flashing twrp but everytime i send the commands
Code:
fastboot flash recovery recovery.img
fastboot flash vbmeta vbmeta.img
takes ages (upwards of 3h each) and i cant boot to twrp anyways
Easier to flash via ResearchDownload (RD).
Replace three files boot.img, recovery.img, vbmeta-sign.img in the unpacked firmware and then flash.
I corrected the post https://forum.xda-developers.com/t/...-some-minor-compromises.4212541/post-85615675
Снимок экрана (1).png
 
Last edited:

Mad_god44

Member
Oct 25, 2021
5
0
I was successful thanks to previous comments, these were the steps and files:
-Extract files in a folder
-Go inside the "adb-fastboot" folder, in the address bar write "cmd" and hit enter to open a terminal
-Run
Code:
adb shell getprop ro.serialno
-Copy and Install SpreadTrumTools.apk in your tablet
-Open the app, allow permissions and input the serial you just obtained

View attachment 5443947
-Tap Generate
-Copy the file "signature.bin" inside the adb-fastboot folder in your computer
-In the terminal run
Code:
adb reboot bootloader
-Wait for the tablet to boot into fastboot, if for any reason boots into fastbootd, navigate to reboot to fastboot
-In the terminal run
Code:
fastboot oem get_identifier_token
-Run
Code:
fastboot flashing unlock_bootloader signature.bin
View attachment 5443949
-Follow instructions in your tablet (press volume down)
-If everything is successful you should see something like this
View attachment 5443951
Hope it works for you
thank you very much for the reply I managed to unlock the bootloader but sadly I bricked my device it will only power on and show the ALLDOCUBE can't use volume up + power and my pc can't see it in adb or fastboot if I use volume down + power it shows up in my pc as unknow device if anyone else has had this happen and know how to fix it would be a big help it wouldn't power off I had to let the battery die just to power it off
 

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  • 5
    I was able to enable Gaps on build system-squeak-arm64-ab-vndklite-gapps.img.xz

    Need to change
    /system/build.prop
    /system/system_ext/etc/build.prop
    /system/product/etc/build.prop

    These lines

    ro.product.product.brand=Alldocube
    ro.product.product.device=T1020S
    ro.product.product.manufacturer=Alldocube
    ro.product.product.model=iPlay_40
    ro.product.product.name=iPlay_40
    ro.product.board=ums512_1h10
    ro.board.platform=ums512
    ro.product.build.fingerprint=Alldocube/iPlay_40/T1020S:12/SP1A.211105.004/211103:userdebug/test-keys

    And add

    debug.sf.latch_unsignaled=0
    3
    Did you manage to get any of the Android 12 to run alright?
    This is the best build 12 https://github.com/phhusson/treble_experimentations/releases
    You can add a line to the file debug.sf.latch_unsignaled=0 in /system/build.prop. This removes graphic artifacts, but not all
    Used assembly system-squeak-arm64-ab-vndklite-floss.img.xz alternativ gapps
    Very fast assembly

    After flashing gsi 12, format data - yes and rebooting, twrp stops working

    To change something in the system sections, vndklite assemblies are needed
    2
    thank you very much for the reply I managed to unlock the bootloader but sadly I bricked my device it will only power on and show the ALLDOCUBE can't use volume up + power and my pc can't see it in adb or fastboot if I use volume down + power it shows up in my pc as unknow device if anyone else has had this happen and know how to fix it would be a big help it wouldn't power off I had to let the battery die just to power it off
    You need to flash your stock firmware. For example, here's a video
    If you have a softbrik, then with the usb cable connected, hold the power button and the volume down button together. As soon as the process of writing the firmware goes, immediately release these buttons
    2
    Perhaps these sources code are suitable for our tablet


    1
    Hi, i hade tried this way with ResearchDownload and i got my tablet brick, then i manage to download the official firmware version and i manage o put it to work again. My Tablet version is Alldocube iPlay40 pro T1020H, is this why i can't follow these steps?
    I manage to unlock it but cannot root
    Root only for t1020s. What firmware did you use?
  • 5
    I was able to enable Gaps on build system-squeak-arm64-ab-vndklite-gapps.img.xz

    Need to change
    /system/build.prop
    /system/system_ext/etc/build.prop
    /system/product/etc/build.prop

    These lines

    ro.product.product.brand=Alldocube
    ro.product.product.device=T1020S
    ro.product.product.manufacturer=Alldocube
    ro.product.product.model=iPlay_40
    ro.product.product.name=iPlay_40
    ro.product.board=ums512_1h10
    ro.board.platform=ums512
    ro.product.build.fingerprint=Alldocube/iPlay_40/T1020S:12/SP1A.211105.004/211103:userdebug/test-keys

    And add

    debug.sf.latch_unsignaled=0
    4
    TWRP and ModSuper for gsi only for the IPlay40 (t1020s) model

    TWRP ported https://forum.xda-developers.com/t/updated-recovery-twrp-rmx2185-twrp-3-5-1-for-realme-c11.4236095/

    You need to unlock the bootloader https://forum.xda-developers.com/t/...-some-minor-compromises.4212541/post-85850877

    You need to download

    TWRP https://drive.google.com/file/d/1lsmYtOESkvI4vz3tLgg9P5CsxaZ3g2fr/view?usp=sharing

    ResearchDownload (RD) https://4pda.to/pages/go/?u=https://mega.nz/file/5RFymB6Q#KjfDboHeduvuXvBi1SDLboO-48o0bmMhBC5FyTIwAVM&e=108966608

    Link how easy it is to flash twrp https://forum.xda-developers.com/t/...-some-minor-compromises.4212541/post-85851141

    firmware global https://www.alldocube.com/en/firmware/alldocube-iplay40t1020s-firmware-download/

    ModSuper for gsi https://drive.google.com/file/d/17v4cp_XJiRYQ6dMRW_amXOwG8gEcTz-x/view?usp=sharing

    Magisk-v23.0.apk
    Rename Magisk-v23.0.apk
    in Magisk-v23.0.zip

    In addition, you will need a micro SD card in order to move these files to it.
    Copy the unpacked files super.treble2product.img , Magisk-v23.0.zip and gsi.img to the memory card

    restart adb recovery
    install for section super mod_super_gsi-v1.img
    format data - yes
    restart adb recovery
    gsi android 10 arm64 a-b - https://sourceforge.net/projects/andyyan-gsi/files/lineage-17.x/ install for section system
    format data - yes
    restart adb recovery
    backup boot
    install Magisk-v23.0.zip
    restore boot
    restart system
    configure gsi rom
    restart adb recovery
    install gapps android 10 arm64 pico https://opengapps.org/
    restart system
    3
    Did you manage to get any of the Android 12 to run alright?
    This is the best build 12 https://github.com/phhusson/treble_experimentations/releases
    You can add a line to the file debug.sf.latch_unsignaled=0 in /system/build.prop. This removes graphic artifacts, but not all
    Used assembly system-squeak-arm64-ab-vndklite-floss.img.xz alternativ gapps
    Very fast assembly

    After flashing gsi 12, format data - yes and rebooting, twrp stops working

    To change something in the system sections, vndklite assemblies are needed
    3
    Solid performance

    STATS.jpg


    The Alldocube iPlay 40 is powered by Unisoc’s T618 processor, which has an octa-core CPU (2 Cores of Cortex-A75 clocked at 2.0GHz and 6 cores of Cortex-A55 clocked at 2.0GHz) and ARM’s Mali-G52MP GPU.

    comparison.png


    This chipset was released in 2020 and built on 12nm process, so it is relatively new, and it offers better performance than MediaTek’s P60 or Qualcomm’s Snapdragon 66X, which are the most commonly used SoC. In budget and midrange tablets. There’s also 8GB LPDDR4 RAM inside the slate to handle multitasking.

    bench1.jpg


    gb5-1.jpg


    gb5-2.png


    ANTUTU.png


    The iPlay 40 has easily beaten other budget tablets in Antutu and Geekbench 5. Even the Teclast M40, which is powered by the same Unisoc T618 chipset, scored significantly lower than the iPlay 40 in both tests.

    3DMARK.png


    In the GPU-focused 3DMark Slingshot Extreme test, the iPlay 40 was also returned with decent scores.

    storage1.jpg


    ANDROBENCH.png


    The storage inside of the iPlay 40 is relatively slow. The Sequential Read speed is only 106.27mb/s in Androbench’s readings, falling behind most other entry-level tablets including Alldocube’s very own iPlay 30, which was released three months ago. But in comparison, Teclast uses even lower-quality storage in both of their M40 and P20HD.

    YouTube.jpg


    In the real-world use, the Unisoc T618 processor actually offers more than enough horsepower to drive the tablet for the tasks it is intended for. The iPlay 40 is smooth and responsive most of the time, I had no issues watching 4K YouTube videos in Chrome, with many other image-heavy webpages loading at the same time. The slate is also capable of keeping many big applications running in the background, thanks to its whooping 8GB RAM.

    video.jpg


    However, the iPlay 40 isn’t the best video decoder, as it scored only 827 in Antutu video tester, but for those normal video formats, you always have the choice to use software decoding. I’ve tried many clips and the slate can play all of them smoothly.

    DSC08581.jpg


    Gaming should not be your main reason to buy a tablet. With that said, the iPlay 40 can run most games installed from Play Store without issues. I tried Asphalt 9, PUBG and Arena of Valor, all of them can run smoothly at moderate settings.



    Superb connectivity

    DSC08538.jpg


    The iPlay 40 supports dual-band Wi-Fi, Bluetooth 5.0, 4G and full phone functionalities. It won’t have fancy features like 5G and WiFi-6, but we don’t expect it to.

    The 128GB internal storage should be sufficient for most users. For those who need more, the tablet supports a TF card of up to 2TB!



    Basic cameras

    DSC08616.jpg


    There are two cameras on the iPlay 40, a front-facing 5MP camera and an 8MP main camera. Those cameras can be useful for unlocking, video-chatting, and scanning QR code, but you won’t want to “archive your life” with them. Even in perfectly-lit conditions, most photos I took with the main camera were either over-exposed or under-exposed, and there wasn’t much life to them. In low light, the photos were simply horrible. In an era when most entry-level smartphones come with dual or triple camera setups, there is really no place for tablet photography.



    Subpar battery life and charging speed

    BATTERY-COMPARISON.png


    The Alldocube iPlay 40 houses a 6000mAh Li-Po battery, smaller than the capacity of most of its peers. Even with a more power-efficient processor, the iPlay 40 still only gives me around 7 hours’ screen time on a full charge.

    BATTERY-LIFE.png


    With display brightness and speaker volume both set at 50%, the iplay 40 lasted 7 hours and 55 minutes in our battery rundown test, where we played a 1080P video on loop.

    This iPlay 40 doesn’t support any form of quick charge. The supplied wall charger is rated 10W (5V-2A), a full charge (0%→100%) takes about 4 hours. In comparison, the Lenovo Tab P11 comes with a 20W QC3.0 charger, while the Smasung Galaxy Tab A7 supports 15W charging.



    Verdict: an all-around tablet with some minor compromises

    The Alldocube iPlay 40 isn’t designed to break any new grounds, but it is an Android tablet which gets a lot of essential things right. It has a sharp and colorful display, which makes it ideral for video streaming, web-browsing and even light gaming. The T618 processor offers more than enough power for everyday tasks. 4G and phone functionalities means the tablet can be a serviceable phone whenever needed.

    The absence of a fingerprint reader, slow storage and low battery capacity could all be potential deal breakers for many, but for a tablet priced as low as the iPlay 40, it’s really unfair to ask for perfection. With UFS 2.1 storage, higher quality speakers and much, much better cameras, the Lenovo Tab P11 is still a superior piece of tech in many aspects. But if horsepower is on top of your priorities when choosing a tablet, you won’t get anything better than the iPlay 40 in the same price range.
    3
    I still have no luck with the information from this link.

    They mention an APK, the "SpreadTrumTools-20200317.apk", but I can get this APK from nowhere. I tried several links to some Japanese (?) online storage, but I only manage to download some exe files, and obviously I don’t download them. Without it I cannot generate the signature.bin and do the rest of the steps.

    I tried this method from the Hovatek forum and I still don't be able to unlock the bootloader.

    When I try the command "fastboot flashing unlock_bootloader signature.bin" it always fails.

    I have tried several ways to get the signature.bin, even using a live Ubuntu distro (and the hassle to learn how to do all of this in Linux).

    After a large of hours getting nowhere, I think I will give up to unlock the bootloader to root this tablet.

    If somebody can give any help I'll appreciate, maybe a link to download the SpreadTrumTools-20200317.apk, or other solution to unlock the bootloader.

    And If possible, somebody installs the CPU Monitor app and verify if the cpu is almost all the time at 80% plus as mine.