Order ##UT-721122-WH/OUT/54051 - Matek Slim V3 Flight Controller - Short-circuit the cpu gets really hot on start up and when meaureing the 5v output it measure to almost no voltage

Help Unmanned Tech
1

Order Number: #UT-721122-WH/OUT/54051
Product Name: Matek Slim V3 Flight Controller
Brand: Matek Systems
The flight controller will not connect due to a short circuit I believe as the cpu gets really hot and the 5v output is measure on a multi meter to be shorted so I assume there is an issue with the regulator and it’s shorted somewhere
I have tried flashing the firmware itself which didn’t work so I went to the board noticed it was very very hot so i decided to check all the outputs with a multi meter which determines the 5v output is shorted I can get a picture if needed however it is hard to photograph

Image Description
Image Description3024×4032 3.73 MB

Image Description
Image Description3024×4032 3.31 MB

2

Hi Benjamin good day,

I am sorry to see you are struggling with this FC.

Starting with firmware flashing before doing and soldering is a great strategy.

One of the first things a manufacturer will look at when a fault is reported is soldering, so this gives us the very best chance at getting this resolved for you quickly.

I have already sent your photos and description through to Matek and will update you as soon as I hear back from them.

Hope this helps.

If there is anything else I can help with please do let me know.

Regards,
David

Unmanned Tech Support

3

Hi Benjamin good day,

Good news, Matek has agreed to replace the FC for you. We do have stock of the SLIM currently so I can send a replacement out for you or refund you for the item.

Which would you prefer?

Please let me know and I can action that for you.

Regards,
David

Unmanned Tech Support

4

Hiya I would please like a new one sent to me at 36 Winn road if possible can you please send it next day delivery like I ordered the first one I’m using it for a university project in which the deadline is soon approaching many thanks Benjamin

5

Hi Benjamin good morning,

Replacements are shipped with RM48 which usually takes about 2 days to deliver.

Let me see if there is anything else I can do here.

Regards,
David

Unmanned Tech Support

6

Thank you please let me know what you mange to sort and let me know when it’s out for shipping

Thanks Ben

7

Hi Ben good day,

We upgraded your shipping and will get that FC sent out to you today.

Hope this helps.

If there is anything else I can help with please do let me know.

Regards,
David

Unmanned Tech Support

8

Thanks David I appreciate all the help

9

Hi the new controller Arived but it has the exact same issue I don’t why I’m getting broken ones I’d please like my money back so I can shop elsewhere

10

Hi

The fact that two have failed in a row suggests that something else could not be quite right.

Please can you send some photos of the latest FC showing how it was installed, so I can look into this further. Then we can also arrange to have both boards returned back to us for inspection/refund/replacement etc…

I just needed to confirm since something clearly is not right as it is definitely odd that two that have failed in a row so would like to investigate this further with Matek.

Kind Regards

Alex

Unmanned Tech Support

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11

Yes definitely all I have done with them both is connect them to a pc via USB-C and from there they get hit and won’t connect or let me install the firmware, what would you like me to film and show ?

12

Hi Ben good day,

This is incredibly odd, to have two FC fail in exactly the same way like this.

The only thing I can imagine is it is USB/power related in some way causing an issue.

Is this connected directly to PC or does it go through a hub?

Unfortunately we would not be able to send you a third replacement as this is likely to happen again.

Is it possible to have you send both of these back to us?

We can send you an RMA and then speak to Matek independently while we sort out a refund for you.

Regards,
David

Unmanned Tech Support

13

Yep all that happens if I connected it via usb into the pc which worked well with the existing flight controller I have (the one I ordered is the same models used for an upgraded version on my project) however both times on power up the boards have got hot. I can send them back however would I be expected to cover the cost of shipping ? I would appreciate a refund as this has caused a lot of stressed with the deadline which I now won’t make and have had to just submit my method without a working result. :frowning:

14

Hi Ben good day,

I am really sorry about this, I am not certain why this is happening.

Please can you return the two units and I will take this up with Matek.

An RMA (Return Merchandise Authorization) has been created for your order.

You should receive an email shortly at the address associated with your order. This email will contain:

  1. Your RMA number

  2. A link to our RMA form

  3. Instructions for completing the return process

Please check your inbox (and spam folder) for this email. If you don’t receive it within the next hour, please let us know here.

Remember to complete the RMA form and initiate your return within 30 days. If you have any questions, feel free to ask them in this thread.

Hope this helps.
If there is anything else I can help with please do let me know?

Regards,
David

Unmanned Tech Support

15

Perfect thank you how long does it take to get my money back after I send this ?