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

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White_Spot™

Member
Jan 31, 2011
25
15
Sorry for bumping such an old post.

I would like to share my experience, hope it is useful for others that is experiencing the same problem.

I faced the same issue, the tab kept on restarting with the "abnormal temperature" warning. It is getting worst after I updated to the latest OTA firmware.

Been following the advise from our fellow users in here (installing those apps and what's not) up to a point I would like to rip it open and try to use thermal tape and/or disconnect the battery cables.

I accidentally found that the issue wont arise if I am using the tab while charging it. Usually it took tab will restart after 2-3 minutes on Netflix but none happen when im on charging mode.

Whilst this would not solve the problem, but perhaps I could continue using my tab (and no need for me to pry it open) while waiting for the latest update that solves this problem.

Tl;dr: Use the tab in charging mode, it wouldnt restart.

Hope this helps.
In my case (my daughter) using the tablet when it is charging does not prevent the appearance of the temperature error / problem.
The only conclusion we can make is some have no issues, others have this issue always, others only sometimes. Not even worth thinking about it too much lol. But in the end, if the problem appears, you know that one solution is the addition of a 4.7K resistor to the white cable of the battery.
 

White_Spot™

Member
Jan 31, 2011
25
15
I didn't get a chance to experiment with the tablet after fixing it but got the info that it is being used heavily everyday and the issue never came back. Good luck with your fix.
I should add the information that the resistor have to be added in parallel and not in series.

I first added it in series and when my daughter went to charge the tablet it didn't charge. The information / animation of charging show up, but it never passes from 0% (yes 0% as my daughter like to drain to the end of the battery).

I added a little cable, so the resistor be in parallel and the tablet start to charging normally.
Until now the problem doesn’t show up again, but it is too soon to say if the problem disappeared "forever", as sometimes the error doesn't show up several days with heavy use.
 

blaze2051

Senior Member
Jul 26, 2010
372
37
LG G7 ThinQ
LG V40
Update--- i got it to work i add to use the fastboot version from the zip file, this time it work this is for my smile1 T803 unisoc t310 tablet with android 11

fastboot flashing unlock_bootloader signature.bin command does not work
 

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AllexBast

Senior Member
Feb 15, 2013
206
116

tchcrat

Member
Dec 25, 2021
6
7
In my case (my daughter) using the tablet when it is charging does not prevent the appearance of the temperature error / problem.
The only conclusion we can make is some have no issues, others have this issue always, others only sometimes. Not even worth thinking about it too much lol. But in the end, if the problem appears, you know that one solution is the addition of a 4.7K resistor to the white cable of the battery.
That is totally against the theory. The only reason why it is not charging is that your overall resistance is too large than the programmed limits or the resistance is faulty or not making proper contact. You can just test this by cutting the white wire and not attaching anything. Double check your resistance value. If it is still causing charging failure try with lower resistance like a 2.2k. It should be in "series". Also you can connect a resistance (around 8-10k) between white and black at the mother board side after cutting the white wire if your battery ntc is totally unusable(This will void the capability to detect any change in temp though)
 
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blaze2051

Senior Member
Jul 26, 2010
372
37
LG G7 ThinQ
LG V40
I patched T803 boot with magisk with v22.1 but once i flash boot_patched.img via RD it results in a boot loop. Am I missing a step of what other files need to be flashed?

Then i tried to flash twrp via fastboot and i got an error
 

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blaze2051

Senior Member
Jul 26, 2010
372
37
LG G7 ThinQ
LG V40
I managed to unpack raw the super.img from T803 but not sure where to go from here.

I also managed to get my boot and dtbo key from my vbmeta-sign.img. So now not sure whats the next step
 

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blaze2051

Senior Member
Jul 26, 2010
372
37
LG G7 ThinQ
LG V40
i finally figured it out, so after the smaller patch_boot.img is repacked. that avbtool command used to sign for the boot.img will inflate img back to specific size. After flashing patch_inflate boot.img along with your custom signed vbmeta.img you well get stuck on boot. thats is to be expected. after that go back to download mode and flash your stock oem vbmeta-signed.img and it will boot up to android with magisk root installed.
 

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AllexBast

Senior Member
Feb 15, 2013
206
116
i finally figured it out, so after the smaller patch_boot.img is repacked. that avbtool command used to sign for the boot.img will inflate img back to specific size. After flashing patch_inflate boot.img along with your custom signed vbmeta.img you well get stuck on boot. thats is to be expected. after that go back to download mode and flash your stock oem vbmeta-signed.img and it will boot up to android with magisk root installed.
If you need a working vbmeta, then you should check out this post https://forum.hovatek.com/thread-32664.html. I completely disable encryption and avb control
 

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  • 1
    I have tried the iplay40 utility from @AllexBast and most of it seems to work, but when fastbootd is opened it gets stuck on "waiting for any device" that might be a driver issue but where could I find the fastbootd drivers ? everything else works, adb fastboot (bootloader) etc, just not fastbootd
    I own a standard iplay40 (T1020S)

    ps : I checked, I did install at least all the drivers required for the stock flashing tool and i installed these https://developer.android.com/studio/run/win-usb
    Almost like in this video, but the name of the unknown device will be different.
    1
    So, I found a way to install the driver but that was kind of weird, I needed to modify the inf file of the driver to add my vendor ID to the driver's database, the driver installed properly after doing this
  • 5
    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.
    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
    4
    TWRP and ModSuper for gsi only for the IPlay40 (t1020s) model

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

    install Disable encryption in Utility-T1020S_v01
    You need to download:

    ModSuper for gsi https://forum.xda-developers.com/t/...-some-minor-compromises.4212541/post-86307695

    In addition, you will need a micro SD card in order to move these files to it.
    Copy the unpacked files mod_super_gsi-v1.img and gsi rom to the memory card

    restart adb recovery
    install for section super mod.super.gsi.sparse.v2.img
    wipe factory reset
    reboot recovery

    install for section system gsi android 10 or 12 arm64 a/b pre-unpack from archive https://github.com/phhusson/treble_experimentations/wiki/Generic-System-Image-(GSI)-list

    restart system
    configure gsi rom
    restart adb recovery
    install gapps android 10 arm64 pico https://opengapps.org/ or android 12 https://www.pling.com/p/1462970/
    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.