Bricked Ant BMS?

Obelous

1 mW
Joined
Aug 6, 2024
Messages
14
Location
United Kingdom
Hello, A while ago I bricked my Ant BMS 20S-110A by starting a firmware update which got stuck at 0.2%, after about 10 minutes I cancelled it and all of the fields were blank with only a warning to upgrade the firmware.
After poking around for a trying to upgrade the firmware I somehow made it worse and now it wont even connect on bluetooth.
I saw on a differnt thread here the PC version could reflash successfully so I ordered a USB to TTL adaptor directly from ANT BMS and it arrived today, when I connect it to my PC over the COM port the light turns green and then starts flashing blue for about 20 seconds before turning off. During this 20s window trying to "autosearching" with the ANT BMS pc app it tries COM1 and COM 3 at different baud rates before showing an error NoAvaliablePort.
In device manager USB-SERIAL CH340 does show up, so Im assuming its not an issue with my pc.

Is my BMS completely fried? or am I missing something.
 
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