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

[White_Spot™]

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™]

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]

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

 

[blaze2051]

Any working GSI android 10 for the T310 8in tablet ?

Any chance the iPay40 TWRP will work on the T803?

 

[AllexBast]

Any working GSI android 10 for the T310 8in tablet ?

Any chance the iPay40 TWRP will work on the T803?

Need vendor, boot, recovery from your firmware. Read previous posts on how to do it.

 

[blaze2051]

Need vendor, boot, recovery from your firmware. Read previous posts on how to do it.

i extracted the all files from the .pac oem firmware BUT only files that are usable are boot.img 65mb and super.img 3.6GB no recovery. stock firmware from factory is A11.

 

[blaze2051]

Hi! If you are interested in twrp for iPlay40 and the modified super.img here is a link to my post: https://4pda.to/forum/index.php?s=&showtopic=1031542&view=findpost&p=108968520

link is broken

 

[AllexBast]

link is broken

Nothing from iPlay40 will suit you. Your boot.img contains revovery. Unpack super.img and post your vendor.img

 

[blaze2051]

Nothing from iPlay40 will suit you. Your boot.img contains revovery. Unpack super.img and post your vendor.img

yes unpacking the super.img is my issue. I dont have a way to unpack super.img. I use windows 10 and one app that worked for LG G8 super.img doesnt work with alldocube super.img.

do you know of another windows based super.img unpacker?

 

[AllexBast]

yes unpacking the super.img is my issue. I dont have a way to unpack super.img. I use windows 10 and one app that worked for LG G8 super.img doesnt work with alldocube super.img.

do you know of another windows based super.img unpacker?

https://xdaforums.com/t/teclast-m40-how-to-unlock-bootloader.4185363/post-86205553

 

[blaze2051]

https://xdaforums.com/t/teclast-m40-how-to-unlock-bootloader.4185363/post-86205553

thanks for the help but one link is broken and the other is a trojon virus

Super.img Extractor | Extract build.prop from system and reverse System Image

Super.img Extractor | Extract build.prop from system and reverse System Image %

cruzersoftech.com

 

[AllexBast]

thanks for the help but one link is broken and the other is a trojon virus

Super.img Extractor | Extract build.prop from system and reverse System Image

Super.img Extractor | Extract build.prop from system and reverse System Image %

cruzersoftech.com

I can advise https://xdaforums.com/t/tool-windows-kitchen-crb-v3-0-0-beta14.3947779/ . With this tool I repack vendor.img.
You will have to fix 3 fstab files yourself

 

[tchcrat]

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)

 

[blaze2051]

I can advise https://xdaforums.com/t/tool-windows-kitchen-crb-v3-0-0-beta14.3947779/ . With this tool I repack vendor.img.
You will have to fix 3 fstab files yourself

I installed this program but im missing files to make it work

 

[blaze2051]

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

 

[blaze2051]

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

 

[blaze2051]

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.

 

[blaze2051]

Nothing from iPlay40 will suit you. Your boot.img contains revovery. Unpack super.img and post your vendor.img

T803_vendor_a.7z

drive.google.com

 

[AllexBast]

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

 

[blaze2051]

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

I need twrp for unisoc