# Blue Smart Charger 12V/15A firmware update failed

**URL:** <https://community.victronenergy.com/t/blue-smart-charger-12v-15a-firmware-update-failed/59559>\
**Category:** DIY\
**Tags:** bluesmart\_ip22, beginner\
**Created:** [22 June 2026 06:43 UTC](https://community.victronenergy.com/t/blue-smart-charger-12v-15a-firmware-update-failed/59559 "2026-06-22T06:43:04Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![mikemat](https://avatars.discourse-cdn.com/v4/letter/m/df788c/32.png) [@mikemat](https://community.victronenergy.com/u/mikemat)\
**Post date:** [22 June 2026 06:43 UTC](https://community.victronenergy.com/t/blue-smart-charger-12v-15a-firmware-update-failed/59559/1 "2026-06-22T06:43:04Z")

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[VictronConnect\_report.log](https://community.victronenergy.com/uploads/short-url/wVJZbk4umdFUsip9HOqiXOOch2U.log) (47,2 KB)

Hello,

When I tried to update firmware in the Blue Smart Charger 12V/15A, a message appeared saying ‘Connection lost’. When I switch on the power, the Blue Smart Charger’s LEDs flash; it does not charge and does not connect to my phone. I have attached the log file.

What should I do? Thank you.

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**Author:** ![mikemat](https://avatars.discourse-cdn.com/v4/letter/m/df788c/32.png) [@mikemat](https://community.victronenergy.com/u/mikemat)\
**Post date:** [23 June 2026 09:10 UTC](https://community.victronenergy.com/t/blue-smart-charger-12v-15a-firmware-update-failed/59559/2 "2026-06-23T09:10:42Z")

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hello, anybody ? What should i do?

I can’t connect when using different mobile phones.

Best regards MM

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**Author:** ![thiemovanengelen](https://avatars.discourse-cdn.com/v4/letter/t/8491ac/32.png) [@thiemovanengelen](https://community.victronenergy.com/u/thiemovanengelen)\
**Post date:** [24 June 2026 06:14 UTC](https://community.victronenergy.com/t/blue-smart-charger-12v-15a-firmware-update-failed/59559/3 "2026-06-24T06:14:37Z")

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Hi,

Make sure that you remove the device in the bluetooth menu of the phone before trying to connect.  
If you are then still unable to connect, can you please add a bit more information or screen shots on what is working / happening when you try to connect.

When you are able to connect, VictronConnect should present you with a firmware update screen.

With kind regards,  
Thiemo van Engelen