How To Solve UPA USB V18.104.22.168 “usb device not recognized”
Does someone has dump for 24lc128 eeprom v1.3r2? My UUSP upa was working fine, and today it say’s usb device not recognized, I try with dump from v1.2 but working only one time after disconnect and connect again same usb device not recognized.
solution from obd2express.co.uk engineer：
Here is dump from upa version 1.3 – for 24c128
If the eeprom dump works well at the first time, but after UPA USB V22.214.171.124 disconnects and reconnects again, it shows usb device does not recognize again. You should try one of these two solutions:
1). You should fill eeprom with FF. After connecting it, it will ask you to update eeprom. You should update and it will work well.
2). You need to change this N15. N15 is fuse, value about 0R.