Ludwig

No software solutions until the new encryption is broke, as you told U2W_AUTOKIT_Update_2020.12.25.1732 is resulting in 2020.12.25.1733 on V3 devices : this is suggesting the proprietary update binary is not...

Sorry for the delay, had to buy a V3 to be sure. "Rooted" my V3 the hard way: [enjoy](https://github.com/ludwig-v/wireless-carplay-dongle-reverse-engineering/blob/master/Flash_Dump/MX25L12835F_CFW_20210830.BIN) 🍿

Activation : 192.168.50.2 on your phone, wait few seconds, activation success on screen, unplug & replug & done ;)

> Working great! -- so if we want to update the CFW on a v3.0 from now on, do we have to do it the "hard way" direct flash or...

Back then you could have used U2W_Decrypt script but they changed the way they pack the firmware (Obfuscated ZIP to AES encrypted ZIP with still unknown key) I worked on...

Your best bet with old units is to flash a full dump directly because you will have nothing but problems if your rootFS is still at 10MB. https://github.com/ludwig-v/wireless-carplay-dongle-reverse-engineering/blob/master/Flash_Dump/