Xiaomi M365 error codes

I did not understand exactly what these files are for.

What does it mean "ForceUid"?

Is it for error 22?

Thank you

Yes, these files fix error 22.

Is it possible to flash clone bms B 3664 10s with this file ,without stlink ,just with m365 downG ,for fix error 22 ?

Because with st link the process is very difficult and and very long .

thanks

what is the firmware bms 1.26 for? What does it bring and especially for what model of scooter (pro or normal)?

hello, I have a controller with error 13. Problem on phase C. I deleted the 2 mosfets but the error is still present. I have controlled the components of phase C but for the moment I have not found any problem.

You have a Idea?

@Frenchy-m365, check the MOSFET control drivers (U1C) and their body kit. The MOSFETs were replaced or the circuit was switched on without a MOSFET in phase C? When checking the phase wires of the motor wheel were connected to the ESC or only Hall sensors?

With older mosfet  i have error 13 .

After i check without mosfet in phase C and error 13 stay .

i check with all phase wire and hall sensor

I compared the values of u1c with u1b and I didn't notice any difference.

I also checked the resistance and the diodes of phase C.

[quote message=184003]Frenchy-m365 написал(а) 28 september 2020, 22:13

With older mosfet  i have error 13 .

After i check without mosfet in phase C and error 13 stay .

[/quote]

What about the new MOSFETs?

Look for broken tracks on the Board.

Ok,i not have time this day,but when i find ,i write return here .

Thank you.

Check U1 and all components around it.  Make sure there is a connection between U1 and CPU/STM (MK13/MK14/MK15).

p.s.

are you checked R7C?

it was the R3C component that was causing the problem.

I saw that there are 2 different references for this component.

Either 47ohm or 56ohm.

The phase a and b was originally with 56 ohm and on the C I had a 47 ohm.

I looked at the dead motherboards that I had and some with a 47 ohm other 56 ohm.

When I replaced with a 56 ohm it was ok, no more error 13.

Look

@Frenchy-m365, usually, if R3 dies, then U1 also dies. Check U1 carefully.

The size of R3 depends on the Ciss of the MOSFETs and Io+ the driver.

Compare the MOSFETs and drivers on these two boards.

Usually, under FAN7842, R3 is set to 56 Omh, and under MT8006A, R3 can be set to 47 Omh.

I returned the card. There were custom HY4008P mosfets. I never saw a dead u1. Strangely this card I had repaired with a r3c 47 ohm (I did not know that there were 2 options) it is fine  worked like this for 1 month. The person he had, used engine brake on strong and firmware 65A Oleg. This is after that he got error 13.

it would be necessary to vary the value of this resistor according to the mosfet to use? And for R2x?

[quote message=185158]Frenchy-m365 написал(а) 03 october 2020, 10:21Strangely this card I had repaired with a r3c 47 ohm[/quote]

Apparently, the R3C broke down when shaking, and not due to excessive power dissipation when a large current was flowing.

[quote message=185158]Frenchy-m365 написал(а) 03 october 2020, 10:21it would be necessary to vary the value of this resistor according to the mosfet to use? And for R2x?[/quote]

There isn't much difference between 56Ohm and 47Ohm to pay any attention to. In any case, all three of R3x must be the same in resistance. As well as R2x among themselves.

R3 needs five to six times more resistance relative to R9 in order to more reliably eliminate the two lower FETs simultaneously pressed against the "-BAT" every time the phases are switched to the 120-degree angle of rotation of the motor wheel.

hello, the card is repairing by changing r3 is still broken. I checked r3c (which seemed ok) and I changed it again. The error 13 c is stopped. I put the controller back on the trott, and again error 13 ... When you talk about u1, are you talking about u1x (a, b, c)? Because there is also a component named u1 on the board. I checked with the multimeter u1c and it does not give a value really abnormal. If you confirm for u1c, I will change it. Thank you for all the explanations and the table, concerning r3 / r2, really you are very well informed!

@Frenchy-m365, U1C. And also, read @Boris0ff's answer to You: https://electro.club/f/184285.

I try to check around u1,but i have 2.1 board and it s différents components.

Thé shematics IS not the same .

U1 (LMV324) has 4 amplifiers (only 3 are used).  All outputs (#1 / #7 / #8) must have the same voltage.  Since you have "Error 13", then the voltage on pin #7 is different from the rest outputs (#1 & #8). Look for the reason.

p.s.

or no connection between pin #7 U1 & pin #15 U6

[quote message=188429]Frenchy-m365 написал(а) 19 october 2020, 11:38When you talk about u1, are you talking about u1x (a, b, c)?[/quote]

No, we are talking about U1 - LMV324