nokia 2 all time this problem
 

-> Old : Power Off Phone, wait 5-10 seconds, Insert USB cable
-> New : Power Off Phone, press and hold VOL_DOWN and POWER keys, until FASTBOOT screen appear

Wait for phone...
Connect Ok!
Device Found!
Initialize ...
Initialize Ok!

Looking for SVC package in local database ...
SW : E1M-068R-0-00WW-B01
Package : E1M-064I

Device : E1I ( E1M1 )
BLType : RETAIL
SecVer : 04
Device authentification ...
Processing server operation ...
Connecting to server...
Connection faled: Socket Error # 10060
Connection timed out.
Disconnected

Error : Server Connection failed! Connection error or bad credentials?
Check previous message for more info!

Reconnect Power/Cable!