Mi Robot vacuum

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Re: Mi Robot vacuum

Postby NeilF » January 10th, 2018, 8:04 am

Jani wrote:https://www.kaspersky.com/blog/xiaomi-mi-robot-hacked/20632/

Interesting. Lot of good, but this is something that Xiaomi should think.

"The researchers also learned something disappointing about Mi Robot, however. The device collects and uploads to Xiaomi cloud a lot of data — several megabytes per day. Along with reasonable things such as device operation telemetry, this data includes the names and passwords of the Wi-Fi networks the device connects to, and the maps of rooms it makes with its built-in lidar sensor. Even more disturbing, this data stays in the system forever, even after a factory reset. So if someone buys a used Xiaomi vacuum cleaner on eBay and roots it, they can easily obtain all of that information."

That doesn't sound great... But who cares about floor maps?

And I guess the day before you sell it, spend 2 minutes doing the following? Change your wireless password to "blibblob", connect the unit to it again, then factory reset the unit, and return your wireless password back to what it was? Done! Security risk gone in two mins!
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Re: Mi Robot vacuum

Postby twistdh » January 10th, 2018, 12:07 pm

I don't care about security: i don't think to sell my robot...but if it is true is a bad thing...
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Re: Mi Robot vacuum

Postby abulkasam » January 10th, 2018, 4:16 pm

Just an update on the stiff right wheel.

I got a replacement from Ali Express for £22 pounds.

It only took 2 weeks to arrive. Relatively simple replacement of the right wheel. Biggest issue was having screwdrivers thin enough to tighten one of the screws.

Good as new on the first run.


I also took apart the defective wheel. And it appears to be the motor itself that went a bit stiff and won't turn properly. It has wires soldered to it so hard to work out how to repair.

Also there is a spring mechanism which is difficult to return back in place, so in the end a replacement wheel at £22 is the best way to go. Got it from AliExpress. You can chat to the person and ask for Right or Left to make sure. They even send pictures. And in my case had tracking all the way.

Saved a hassle of returning the unit bck to HK.

Have also bought invisible walls to avoid an edge.


I also bought some stick on microfibre clots. Might try to see if they improve dust collection.
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Re: Mi Robot vacuum

Postby Brett » January 11th, 2018, 9:51 pm

Time flies like an arrow.
Fruit flies like a banana!
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Re: Mi Robot vacuum

Postby skyone » January 12th, 2018, 6:22 am

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Re: Mi Robot vacuum

Postby Drmacabre » January 12th, 2018, 12:30 pm

Hello,

All of a sudden, my robot doesn't work'anymore, says offline with white blinking lights turning red eventually after a while. I tried every possible reset, any advice ?

Thanks
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Re: Mi Robot vacuum

Postby vic7767 » January 12th, 2018, 1:02 pm

Have you tested the battery? How old is it? What is the stored voltage and have you performed a load test on the pack?
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Re: Mi Robot vacuum

Postby Drmacabre » January 12th, 2018, 1:18 pm

Yes, it says 16.41, 14.30 and 16.24v which seem pretty close to the original values on the battery
he's 11 months old. I haven't tried to perform a load test, how do i do that ?
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Re: Mi Robot vacuum

Postby vic7767 » January 12th, 2018, 2:31 pm

Locate an auto bulb that is 12 volt, and 20 watt. This will apply about a 2 amp load to the battery. The lamp should stay on bright for about an hour. If the lamp does dim at 15 or 30 minutes then there may be a defective cell inside.
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Re: Mi Robot vacuum

Postby Drmacabre » January 14th, 2018, 1:21 pm

vic7767 wrote:Locate an auto bulb that is 12 volt, and 20 watt. This will apply about a 2 amp load to the battery. The lamp should stay on bright for about an hour. If the lamp does dim at 15 or 30 minutes then there may be a defective cell inside.


What wire does what exactly ?
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Re: Mi Robot vacuum

Postby okiewlicz » January 16th, 2018, 7:35 am

I bought a Xiaomi Vacuum Cleaner in China. It works fine in shop. I remove battery for transport. After travel I installed battery again and I got a message "54 battery abnormal" . I get the same message when battery is removed from device. Cleaner doesn't see the battery. Could you help me to fix this problem? I test battery and it has 14,4V on red wire and 0 on white and yellow. Is black ground? ​​
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Re: Mi Robot vacuum

Postby vic7767 » January 16th, 2018, 5:01 pm

Red and Black are battery. The other two wires are the temperature sensor.
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Re: Mi Robot vacuum

Postby Jani » January 17th, 2018, 2:39 am

I got an firmware update. 3.3.9_003095. Don't know what's new in it.. but update done.
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Re: Mi Robot vacuum

Postby okiewlicz » January 18th, 2018, 5:16 am

Ok so power cables looks ok. What voltage should be on temp sensor?
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Re: Mi Robot vacuum

Postby roybar1 » January 18th, 2018, 6:20 am

Someone solved the problem
With the notifications Push Up ?
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Re: Mi Robot vacuum

Postby vic7767 » January 18th, 2018, 10:23 am

okiewlicz wrote:Ok so power cables looks ok. What voltage should be on temp sensor?
No voltage, just a resistance. Not familiar with this model but normally room temperature 72F should read around 10K Ohm.
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Re: Mi Robot vacuum

Postby okiewlicz » January 20th, 2018, 4:20 am

i have 157k Ohm there (white-yellow wire). I think it could be a problem. Thanks.
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Re: Mi Robot vacuum

Postby Gene2 » January 21st, 2018, 4:16 pm

okiewlicz wrote:i have 157k Ohm there (white-yellow wire). I think it could be a problem. Thanks.

Temperature sensor is connected to white wire. Voltage must be the same as on the black wire. The resistance must be 10kOhm.
Yellow one is not used. At least it must work without it.
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Re: Mi Robot vacuum

Postby Jani » January 22nd, 2018, 3:44 am

Now I noticed that I can adjust speech volume level. :)
Also... is there new speed level:
Quiet, Balanced, Turbo and Full Speed.
I haven't seen "full speed" earlier. I thought that Turbo was the highest.
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Re: Mi Robot vacuum

Postby NeilF » January 22nd, 2018, 5:41 am

Just wish they'd implement the region cleaning from the mk2. So you can tell it to go and clean an area (by drawing a rectangle around it), so it would levae the dock, clean the region and then return to the dock.
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