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davidmpye / V10_Dyson_BMS

A reworked unofficial firmware for Dyson V10 Battery Management Systems
GNU General Public License v3.0
30 stars 7 forks source link

Failed to unlock #14

Open HellaK-png opened 1 week ago

HellaK-png commented 1 week ago

Hi David, I am trying to unlock my V10 pack with your firmware and a pi 2. After running I get this error. 20240619_132926 "Unlock Failed" "Unable to unlock pack" Then it aborts. Thanks.

davidmpye commented 1 week ago

Hi,

It's most likely a connection issue - there is insulating varnish on the pin-holes that needs to be carefully removed to ensure good contact.

David

On Wed, 19 Jun 2024 at 18:35, HellaK-png @.***> wrote:

Hi David, I am trying to unlock my V10 pack with your firmware and a pi 2. After running I get this error. 20240619_132926.jpg (view on web) https://github.com/davidmpye/V10_Dyson_BMS/assets/173296709/ec83f636-025f-465f-803b-b8dadd4ff168 "Unlock Failed" "Unable to unlock pack" Then it aborts. Thanks.

— Reply to this email directly, view it on GitHub https://github.com/davidmpye/V10_Dyson_BMS/issues/14, or unsubscribe https://github.com/notifications/unsubscribe-auth/AARIHYNATJ5JT7QE7JZR3Y3ZIG6PZAVCNFSM6AAAAABJSO3ZQ6VHI2DSMVQWIX3LMV43ASLTON2WKOZSGM3DEOBWG42TENY . You are receiving this because you are subscribed to this thread.Message ID: @.***>

HellaK-png commented 1 week ago

Hmmm, I've resoldered all the connections and I'm still getting the error. The pack flashes 5 red lights when it is attempting/unable to unlock. Thanks.

HellaK-png commented 1 week ago

For anyone else with this issue, I followed another users comment and wired the 3.3v lead. This made the programming successful. Thanks for your work on this project David!

davidmpye commented 1 week ago

Hi,

I'm really pleased it worked, but surprised that it needs the 3.3v supplied externally.

I had advised against it as there's a small risk that the 3.3v regulator on the board might backfeed the vReg on the Pi. Or potentially vice versa.

But if it works....!

David

On Fri, 21 Jun 2024 at 14:11, HellaK-png @.***> wrote:

For anyone else with this issue, I followed another users comment and wired the 3.3v lead. This made the programming successful. Thanks for your work on this project David!

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