Xiaomi Fixed!! Does not turn on? Does not charge? Reduced battery range suddenly? Xiaomi

If you're having issues with your Xiaomi scooter, such as it not turning on or charging, turning off during rides, or a sudden drop in battery range,
then this guide may help you fix the problem.
In my case, my scooter would not turn on at all, and the charger light remained green even when plugged in, indicating that it wasn't charging.
Normally, the light should turn red while charging.
To fix this issue, I needed to disassemble the scooter deck and check the battery first.
The quickest and easiest way to do this is to use an electrical screwdriver.
First, unplug the power cable between the controller and battery,
then release the communication cable between the controller and battery.
Next, unplug the charging cable from the battery.
Now you can unscrew the battery from the scooter, which is connected with 4 bolts. Also, release the plug for the rear lamp, which you can do with a pair of forceps.
You can now safely pull the battery out of the deck. To check the battery, you'll need to unfold it from the original cover.
You can use a knife to cut in the middle. Then, check the LED light on the battery, which is located on the Battery Management System (BMS) circuit board.
It should flash with a blue color. If there's no LED flashing, then there's a problem.
Check the pins that connect to the battery cells. They should all be tight and soldered. In my case, I found one disconnected pin just by physical checking.
I needed to solder it by cleaning the pins, putting rosin and tin, and then soldering the pins after cleaning the contacts.
The battery is in normal condition when it flashes a blue LED light, which mine wasn't.
After soldering the contact, I connected the charger to the battery, and it started blinking with a red light.
However, I found another broken contact, so I soldered it as well.
Now, the battery is flashing with a blue light, which is normal. You can see it in the video. The battery is now back to normal, and I need to pack it again.
Unfortunately, I don't have the thermal plastic cover for the battery with me, so I'll wrap it in insulating tape.
It won't be waterproof as before, but it's the only option I have for now.
Putting the battery back in the deck and connecting the rear lamp cable, I screw in the bolts that hold the battery.
Then, I plug in the charging cable, battery communication, and power cables to the controller.
Finally, I recheck that the scooter turns on by pressing the power button on the handle, and if everything is fine, I assemble the deck cover.
That's it! I hope this guide helped you fix your scooter. If you found it helpful, please give it a thumbs up, subscribe, and see you soon!

[@indro71]

You're video fixed my problem (soldering the battery), many thnx!

[@Z3lovOcHD]

need to get a kit and will try to fix it at home thanks again :))) i was wondering how to fix this issue maybe it will help in my case :)

[@vincentcyprus]

Thanks

[@dannyflanery7466]

When I plug in the charger the battery red light blinks 3 times then nothing else. I have no blinking blue light the charger light remains green

[@chrissamyt816]

@@dannyflanery7466 I have the same problem

[@rezjrprod]

Mine is green and when I do the bypass method where you put the wire in the black and does blue red and then it goes to red but the charger's green after a while

[@Blikess]

Because you using solid tires... then why the joint battery are disconected.

[@r26ff47]

I left my m365 unuse over a year n now not charging. I open the case, and there is no red or blue led. But upon plugin charger, it flashed red 4 times. Check BMS voltage output is 18.40v, but the battery before BMS is 36v. What can be wrong? Is the BMS board faulty after unuse for too long ?
Update: problem fixed by replacing the BMS board. Blinking blue again n able to turn on.

[@smx_shawn168shawn9]

Mine is doing the same where can I buy the other part from

[@r26ff47]

There is a youtube video on how to replace the m365 scooter bms board n link to buy the board. Note: Need soldering skills to do it! And be extra careful of NOT shorting the live battery wire! Not for beginners! th-cam.com/video/bdlhvcMkFKA/w-d-xo.htmlsi=YCkCgQc-glZ54OWK

[@salimdeveci]

Hallo my step to not open how can I it fix have a nice day

[@davejones4093]

I have one where the red light flashes 3 times when the charger is plugged in, then nothing... Could this be a similar fault? The battery is showing a very low voltage on a multimeter too.
Cheers!

[@lolibaftii8835]

Same thing for me, maybe batteries are dead

[@Brody460]

I guess I need a soldering kit ffs

[@mrchralle9118]

they are so cheap compared to a new battery

[@user-rh4iy4wk7f]

What if the battery pings red?

[@Dylan079x]

Battery is dead green is full

[@user-ti6ym9ls2d]

👍

[@syedmohammadfarhaduzzaman3974]

Hello dear. Can you give a scooter

[@ivandivine]

What if you use a glue gun on all of them ?

[@Tristandaman650]

So we have a factory reset button also😮