this solved for all error

When you using hfz universal 3.7,1

1️⃣ Always before start bypass do a fresh firmware restore 

2️⃣Dont press on skip setup and Block ota (option temporary disable)

3️⃣ Open tool Press on boot and proceed

4️⃣ Once registration done, wait 2 min Force close the tool. 

5️⃣ Open tool and press on activate.

(If you having a issue put a SIM card and retry + press activate button couple of time to activate device) 

Enjoy ⚡️