General Category > Discussion - Drivers

USB Continually Reconnecting

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timboski:
After programming an invalid image I lost access to the FTDI chip (VID/PID 0000:0000)
lsusb reports:
--- Code: ---Bus 001 Device 034: ID 0000:0000 Acme Inc. USB Serial Converter
--- End code ---

I managed to get pyftdi (ftconf) to recognise the device and attempt to erase the eeprom.
However, it returned:
--- Code: ---Error: Write to EEPROM failed @ 0x7e
--- End code ---

Now the VID/PID are FFFF:FFFF
lsusb reports:
--- Code: ---Bus 001 Device 037: ID ffff:ffff
--- End code ---
The device appears to be continually reconnecting
(The Device number increases on each call of lsusb, and sometimes it is not shown at all)

Is there any way back from this? (Linux or Windows)

Chip Type: FT4232H
EEPROM Type: 93C46

FTDI Community:
Hello,

Can you please contact your local support team by email?
We need to get more information to help you recover the device.

https://ftdichip.com/technical-support/

Best Regards,
FTDI Community

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