Author Topic: EEVblog #822 - World's Worst Tablet Computer Teardown  (Read 53641 times)

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Offline Bud

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #25 on: November 24, 2015, 05:21:35 pm »
There is no excuse for such bad soldering, prototype or not. Soldering is beyond awful. I soldered MUCH better when i was 12.
 

Offline blueskull

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #26 on: November 24, 2015, 05:22:55 pm »
There is no excuse for such bad soldering, prototype or not. Soldering is beyond awful. I soldered MUCH better when i was 12.

Those TO220s even don't have their tabs wet.

Also, in the battery pack, many joints are cold joints.
 

Offline EEVblog

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #27 on: November 24, 2015, 05:25:03 pm »
The casing is made of injection moulded foam, especially for props so it can be carved up and modified on the fly. I imagine it went something like ..." here are all the bits, get it working before tonight so we can show it off" No time for Jaycar or anything, you do what you need to do and hack/cobble what you need to to make it work for the night. I can't say I've seen worse, but I have seen similar. Usually it ends up in the dumpster the next, week, month.

And put serial number 11 on it. Sorry, I don't buy it.
In either case there is no excuse for such shoddy work. Shoddy isn't really any quicker, and more likely to screw up during the demo.
It deserved the hammering it got.
 

Offline lincoln

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #28 on: November 24, 2015, 05:28:20 pm »
well that is a coat hanger abortion......
 

Offline Warhawk

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #29 on: November 24, 2015, 06:03:42 pm »
Dave, you are missing "http:" in the link to the forum.

Anyway, I would not be surprised if the target customer was a government owed institution or something like that. ::)

Online NiHaoMike

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #30 on: November 24, 2015, 06:24:32 pm »
It looks like an amateur case mod.
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Offline station240

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #31 on: November 24, 2015, 06:25:37 pm »
PSU board has a LM2576 buck step down regulator, 7815 regulator, and some other SMD ICs which I presume are for the battery charger.

So much bodge in this project, ramdom wires of different colours and sizes, the PCB layout from hell, the batteries shoved in whatever space they could find. Those disconnected wires on the batteries seem to be taps for individual cells, was their original plan to use that instead of the voltage regulator board ? Perhaps its to monitor individual cells to determine total battery life.

I'm wondering if the case it made from routed chipboard of some kind, I've seen that grain before.

I'm with Dave, how on earth could anyone make 11 of these without freaking out and spinning a new PCB. It's almost as if someone made these at home in their workshop, power tools and DIY pcb etching included. No idea why they would put a company sticker on such a product.

Did they give these to the customers as demo/learning units, or are they trade booth units that no one got to poke around with properly.
 

Offline danielschroeder

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #32 on: November 24, 2015, 07:42:17 pm »
The company which produced that tablet is still alive today (same name, same address, same buisness):

http://www.esinomed.de/esinomed/de/web.html



 

Offline miguelvp

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #33 on: November 24, 2015, 08:02:40 pm »
Disappointing that a hammer wasn't involved at the end of the video (after removing the battery "pack" if you wanted to play it safe)

Then again Dave probably only threw out the "pack" and the "power supply" and I bet he kept the rest (well I probably would myself ;) )
 

Offline brabus

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #34 on: November 24, 2015, 08:04:36 pm »
Serial number 11 is because they go up to eleven! :-DD
 

Offline Muttley Snickers

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #35 on: November 24, 2015, 08:19:24 pm »
Send it back to them in bits and ask about the warranty status..... :popcorn:
 

Offline kyndal

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #36 on: November 24, 2015, 08:45:51 pm »
i hope some  12 yr old kid got hold of "some" old esinomed  device.  and case modded it  into this XP Abortion

there is no chance it came from a real company...    Tell me it aint so..

someone should call these guys,.  get the gist on what "was" in the box

 
 

Offline German_EE

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #37 on: November 24, 2015, 09:11:15 pm »
On behalf of us all I have just emailed Esinomed with a link to the YouTube video and asked them to comment. Any replies received will be translated if necessary and posted here.

This is not what I expect to see from a German company.
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Offline f4eru

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #38 on: November 24, 2015, 09:59:31 pm »
Now That's a brilliant piece of high reliability engineering !
Nice find. I'm sure there is a worse "assembly" hidden somewhere.
I can't imagine there were 10 of those, nor that it went to a customer. But that kind of thing happens....
 

Offline Barny

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #39 on: November 24, 2015, 10:58:03 pm »
They didn't used some electrical tape for the bateries. Its tape for office use.
How old is this tablet? 10 to 15 years?
All tapes for office use I knew look a little bit different when its that old.

I think dave got a prank pakage.
 

Offline stm

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #40 on: November 24, 2015, 11:00:10 pm »
The company which produced that tablet is still alive today (same name, same address, same buisness):

http://www.esinomed.de/esinomed/de/web.html

I thought that too at first.
U can also find the CEO at LinkedIn, still as CEO from Esinomed.
Then I tried to call them, but the telephone number is no longer active...

But really interesting, how and when and for what purpose this ummm tablet was made for... Maybe a primary school project xD
 

Offline Fungus

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #41 on: November 24, 2015, 11:10:43 pm »
Can't believe they put two traces on the bottom of the power supply board. All that horrible wiring, but two extra wires was too much for them?

Or... if you're going to make a double sided PCB then at least use the empty underside to bring all the connection wires to one edge of the board and solder them there.  :-//

Those batteries though. That's the real winner.

PS: Those screens with wires are common, I see them in ATMs all the time. I'm guessing it's a capacitive sensor array.

Ford also uses wires like that for their "Quickclear" heated windshields. I had one in a rental car once. They're awful, like driving inside a cage. I guess you'd put up with them if you live in a country where you have to scrape the windows every morning but they tried to sell them here in Spain.  :-DD
 

Offline Fungus

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #42 on: November 24, 2015, 11:11:36 pm »
U can also find the CEO at LinkedIn, still as CEO from Esinomed.
Then I tried to call them, but the telephone number is no longer active...

What exactly were you going to say to them?  :-DD
« Last Edit: November 24, 2015, 11:20:36 pm by Fungus »
 

Offline sakujo7

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #43 on: November 24, 2015, 11:19:01 pm »
How old is this tablet? 10 to 15 years?

It's a 2008-ish processor, so it was probably made in 09 or 10.

Wild mass guessing: It was for a quick research project, something like "can tablets in hospitals increase efficiency or whatever". The hardware for it got chain-outsourced until it ended up in the hands of an intern...who lost interest when the ipad was released and hurriedly bodged the required units together.
 

Online Dr. Frank

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #44 on: November 24, 2015, 11:23:47 pm »
This company obviously is in a 2nd bankruptcy process since April 2015, a final decision about that was made last Friday.
No wonder.

Trade Register:
http://www.online-handelsregister.de/handelsregisterauszug/by/Traunstein/E/ESINOMED+GmbH/334217

Frank
« Last Edit: November 24, 2015, 11:43:47 pm by Dr. Frank »
 

Offline stm

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #45 on: November 24, 2015, 11:25:43 pm »
Nobody was answering,  just the telephone company had a notice,  that the specific number doesn't exist anymore...


Ford also uses wires like that for their "Quickclear" heated windshields. I had one in a rental car once. They're awful, like driving inside a cage. I guess you'd put up with them if you live in a country where you have to scrape the windows every morning but they tried to sell them here in Spain.  :-DD


If u would live in Germany u would love that.
The car I owned before my actual car had this damn nice feature... Used to love it! Had sometimes problem with cellular network because of those thin metal wires inside the windscreen, but every winter that problem vanished 😀
 

Offline TiN

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #46 on: November 24, 2015, 11:33:51 pm »
At least CF card is fancy-pancy  :D
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Offline J.Tax

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #47 on: November 25, 2015, 12:07:22 am »
It's unbelievable that this kind of company's exist! The shouldn't be producing this in this kind of crap..
Even our school projects looks better than this crap!
 

Offline continuo

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #48 on: November 25, 2015, 12:19:05 am »
Put an Apple logo on it and send it to Rossmann for repair. Just for the fun of it  :-DD
 

Offline bloguetronica

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Re: EEVblog #822 - World's Worst Tablet Computer Teardown
« Reply #49 on: November 25, 2015, 01:39:57 am »
This thas to be the crappiest product I ever seen! No wonder the company went bankrupt selling that $#/+!

Really, on a scale of 0 to 10, I would give -1 for the effort. I don't know if it is laughable or sad. I wouldn't like to see a PCB of mine being treated like that (rewired and all) and shoved into a product like this.

Edit: Sorry for my French, but I got sick by seeing this video. I hate companies that manufacture products like that. And most surprising, it didn't came from China. No, it was made in Germany!
« Last Edit: November 25, 2015, 01:43:54 am by bloguetronica »
 


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