WM8850-MID Android 4.0 Tablet Unboxing and Review

I recently bought an Android 4.0 tablet with a 7″ capacitive touchscreen based on the new WonderMedia WM8850 processor (Cortex A9 + Mali-400). In my first post, I called this tablet UGoos UG-LMW70, but I just received a no brand package with nothing mentioning Ugoos or the model number UG-LMW70 anywhere. Android settings just show WW8850-mid for the model number.

Ugoos Tablet package
WM8850-MID Package

The tablet comes with a 5V power supply, a miniUSB to USB cable, a short miniUSB to USB female adapter, headphones and a user manual in English explaining how to use Android, but nothing about the tablet itself.

WM8850 tablet, power supply, headphone, USB cable and manual
WM8850-MID Package Content

The tablet has vol-/+ buttons and a power button (left side below), and a power jack, microSD slot, headphones jack, a USB host port, a mini HDMI port, a miniUSB port and a microphone (right to left). They did not include a mini HDMI to HDMI cable, so I did not try HDMI output.

USB, HDMI, microSD slot, power and volume buttons.
WM8850-MID Buttons & Connectors

Windows 8 style home screen is pre-loaded in the device, but you can easily switch between Win 8 and Android theme with a button in the taskbar. After playing with this tablet for a while, I find it operates very smoothly while browsing, flickering through pictures and watching videos.

The biggest problem I found is that it may not always be usable when connected to power, as the touchscreen just gets crazy. For example, if you press one key on the virtual keyboard, it will just quickly act as if many random keys are pressed. Later I used another power extension and the problem just disappeared. I’m also disappointed by the battery life, as I can use it only about 3 hours browsing the web, but this should be expected with the size of the battery (2300mAH).

Google Play is installed, but some applications are not available including Facebook and Youtube (Update: This is fixed with firmware v1.10). I’ve also noticed Face Unlock is not available in the settings, even though this tablet has a front camera.

After 2 or 3 days, the Windows 8 home screen just stopped working and I got the message “Unfortunately, Win 8 has stopped”. At that point I could not access anything, except the settings and my emails once I got a notification. I fixed it by installing GO Launcher EX which let me choose between Win 8, Go Launcher and Android home screens.

I’ve also tried a few more applications such as Skype which works fine, although the speaker is not loud even with maximum volume.

I’ve shot a video to show the performance of the device with the following:

  • Home page
  • Web browsing in Opera Mini with a well-known website 🙂
  • H.264 1080p video playback (on the 800×480 screen) using big_buck_bunny_1080p_H264_AAC_25fps_7200K.MP4 in http://samplemedia.linaro.org/H264/
  • Photo gallery
  • Antutu Benchmark

My webcam resolution and refresh rate are not really good, but it can still give an idea of this little tablet performance. The last part of the video is just the Antutu benchmark (02:00 until the end).

The Antutu benchmark results (2950 to 3020) show this device is equivalent to a Samsung Galaxy S and noticeably faster than AllWinner A10 devices based on the results I got with the AllWinner A10 based Mele A1000 (2337). Both processors use the same Mali-400 GPU, but the A10 is based on Cortex A8 @ 1 GHz and WM8850 on Cortex A9 @ 1.2 or 1.5 GHz depending where you read… The resolution on the WM8850-MID (800×480) is lower than Mele A1000’s (1280×720) and this may also have affected the results. [Update: Total score is actually similar to A10 tablets with 800×480 resolution. See Vlad comment below]

Cortex A9 + Mali-400 Benchmark on Android 4.0
WM8850-MID Antutu Benchmark Results

All in all I’m pretty happy with my purchase. The price is now about 75 USD including shipping from the same shop I bought it from (Eternal), or as low as $64 including shipping from other shops with decent ratings on Aliexpress.

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Sander
Sander
8 years ago

Ah … AnTuTu Benchmark … I searched for it in Google Play, and it is not available for my ProTAB tablet. I have no idea why not. 🙁

I’m now installing AnTuTu Benchmark on my HTC Wildfire with CyanogenMod 7.2 RC … Total Score is 845.

Gerry
Gerry
8 years ago

Hello CNX, I bought the same device and bricked it. The problem is that I cannot find a rom anywhere. I flashed it with the A90 software from Eken (stupid me, made double mistake by thinking we have a A70 and then using A90 flash). The processor is a WM8850 with ICS 4.0.3. Eken doesnt provide firmware for the W70 or A70, also I cannot find any other manufacturer providing a rom for a WM8850 tablet. Can some kind soul please send me a rom of a working W70 ? The W70 boots and shows the Android ICS man being… Read more »

vlad
vlad
8 years ago

WM8850 better A10 only in FPU?

AllWinnerA10 1.2GHz 800×480
AllWinnerA13 1.2GHz 800×480
WM8850 ? 800×480

Antutu 2.8.2
RAM A10(447)>A13(379)>WM8850(330)
CPU A10(709)>WM8850(635)>A13(610)
FPU WM8850(408)>A10(182)>A13(153)
2D A10(295)>WM8850(293)>A13(292)
3D A10(1126)>WM8850(988)>A13(784)

Gerry
Gerry
8 years ago

cnxsoft . thanks for helping.

A backup with adb should be possible, what do you think?
as shown here
http://hackapc.com/how-to-make-a-complete-backup-of-android-4.0-without-root-permission.html

then I could restore also with adb

Gerry

Sander
Sander
8 years ago

@ cnxsoft

De direct APK linked worked and could install Antutu Benchmark on my POV ProTAB2.4: score is 2332.

The nasty thing with this tablet is that it can stall for a dozen of seconds, or even lock/blackout for one or two minutes… 🙁

max
max
8 years ago

2300mAh gave you 3 hrs. so that means around 2300÷3=800mAh per hour? So a 4000mAh battery should give around 5hrs. of usetime.
My hypothesis is correct or power drainage will not be linear.

I’m asking this as this calculation will help me to buy my next tablet.

Gerry
Gerry
8 years ago

I have been able to get the firmware for the tablet. The update process seemed to go fine but after reboot I have now a full brick, even the android man doesnt come up. Only the green LED shows. I suspect some wrong bootloader was installed. It seems one must set the RAM size first before restoring. Now I must debug with terminal access to the internal port.

Dave
Dave
8 years ago

Hi you had previously stated: “The biggest problem I found is that it may not always be usable when connected to power, as the touchscreen just gets crazy. For example, if you press one key on the virtual keyboard, it will just quickly act as if many random keys are pressed. Later I used another power extension and the problem just disappeared.” Could you please let me know, WHAT DO YOU MEAN by “i used another power extension and the problem just disappeared”. Did you BUY ANOTHER POWER ADAPTER? I intend to buy this 8850.. and so it would be… Read more »

gsvirdi
7 years ago


Same prob here also….. @connecting to WiFi. It simply keep showing “Obtaning IP address”, whereas the same internet connection is working fine on LAN (computer).
sugessions plz?

gsvirdi
7 years ago

Did u tried connecting this thing with an internet dongle? Mine is recognizing the dongle as a simple storage device. Is it bcoz the dongle is windows based device?

gsvirdi
7 years ago


Thx for replies, this review was wonderful. Mine is 1st experience with android…. I don’t know anything about this OS at all. Yesterday as I was tying to make the WiFi work… I changed WiFi settings in computer to “no security” and then the Tab showed “WiFi Connected”. I was so happy…. But still it was not able to browse (connect to internet).
Sure I need help from some1 who knows android better than me 😉

jira
jira
7 years ago

ขอถามครับคือผมเผลอลบ play store ออกจากหน้าhomeแล้วทีนี้จะดึงวิกเกตมันกลับกลายเป็นมันไม่แสดงในappแต่ยังอยู่ในsetting/app ครับตอนนี้ผมใช้วิธีเรียกมันจากsearchเอาไม่ทราบพอมีวิธีเอามันกลับมาที่homeใหมครับ

jira
jira
7 years ago

now i find that in another lounther :S i think factory lounther have problem -_-” . After i install go lounther that make this device good. And now i love it. Thank you very much 😀

lerele
lerele
7 years ago

So many clones, not the same, fragil, easy to brick by flashing firmware…
Hard to find the good firmware, many clones.
No CWM support.

Nice tablet, but too fragil, look something more easy to restore to factory or CWM available.

jam
jam
7 years ago

can u help me on this,, my wm8850-mid tablet has encountered an error “unfortunately android 4.0 has stopped”
i tapped on ok but it still returns to the same error,, and i cant access any apps it doesnt even display the homepage it just shows the wallpaper and the error box.. can someone help me on this?

Hal
Hal
7 years ago

I cant seem to D/L the realplayer for android app Is it just me?? or are the not compatible??

Frank Molino
Frank Molino
7 years ago

Bought my Wondermedia WM8850-mid from Aosen Group , I suggest anyone looking at thei tablet to find another supplier, Very bad company to deal with. The Tablet so far is fine except for the fact it came without the ear piece and a manual that cannot even be read , which can be difficult when you dont know Android or Win8. And they were no help at all trying to obtain one from the supplier. So yes on the Tablet …NO on Aosen Group …be warned…24 days to receive and was paid through Paypal.

alex
alex
7 years ago

For those of you getting the unforturnately andriod 4.0 has stopped, i was getting the same message and did this to make mine work. As you are getting this error message, attempt to go to the settings via buttons on the side of the tablet or the settings button on bottom of the screen. On system settings—> Backup & reset—-> Factory data reset. Once you reset, the tablet it will go through a series of reboots and resets and finally will finally reboot with a fresh clean slate of ICS 4.0 Android. This solved the issue for the most part.… Read more »

kelly
kelly
7 years ago

my android wont play properly there seems to be a problem with my head phone jack…music keeps fading in and out!! any ideas ?

娄祥
娄祥
7 years ago

权限怎样获取?

tess
tess
7 years ago

Can u fix the no facebook/youtube problem

Koo
Koo
7 years ago

I bought Apad via 8850 7″ tablet PC. Up to now, I am still looking for USB port driver. Everytime, I plugged it into Windows 7 on my laptop , it showed unrecognised usb controller and unknown device. Do you guys have the driver for the Apad via8850? thanks in advance!

RawR
RawR
7 years ago

hello ?! in the kensgadget this tablet have a window 8 UI does it’s true ? and why this is doesnt the brand name on the back and no Made in China that it is also in the back ? pls.. answer sorry 4 my bad english..

RawR
RawR
7 years ago

RawR :
hello ?! in the kensgadget this tablet have a window 8 UI does it’s true ? and why this is doesnt the brand name on the back and no Made in China that it is also in the back ?

some eken wm8850 have..? pls. check this link : http://www.eken.com/w90/

csgabe
csgabe
7 years ago

Here is a firmware for a easydv(http://www.easydy.cn) 7 inch wm8850 tablet:
http://pan.baidu.com/share/link?shareid=30150&uk=1378812052

antahlah
antahlah
7 years ago

hi, i’m also have 7 inch wm8850-mid tablet with GPS feature supported. i just install papago m9, but cannot display in full screen. please advise. thanks b4.

Taylor
Taylor
7 years ago

I cant download any apps on my WM8850-mid everyy time i find a app and press install it says error processing (DF-BPA-13)… i hate this thing so far please help me enjoy my purchase!

albee lee
albee lee
7 years ago

can i ask hw many hour need to charge it?.. it seem like lost battery easily and i almost charge 4 time per day .. can anyone help me answer my question, let me know wt wrong inside.. thank you

Zbynda
Zbynda
7 years ago

Hallo. I´m flash my tablet MID-8850 this firmware, but touch not working. When I plug usb mouse, tablet working normaly. Can You recommend what firmware I have try? My tablet is same like EKEN W70. Cam is on top and right corner. Thanks 😉

geo g
geo g
7 years ago

I have the same (it looks the same)
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=320956753015&ssPageName=ADME:X:RTQ:GB:1123

I did restore in factory settings and it does nothing. Should I enter in my micro sd with some drivers or firmware?
Because I dont know about that.
Should I download them from somewhere?
Sorry for asking but your tablet seems the same as mine.

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