Demorei 70 horas...e finalmente foi no NRF52
nsh> pppd &
pppd [3:100]
nsh> chat: ATZ
K~ÿ}#À!}&}!} }$ðâ~~ÿ}#À!}&}"} }$”}-~
NO CARRIER
+++chat: OK
ATE1
OK
chat: cmd 1, arg ON
chat: cmd 4, arg 30
chat: ATE1
ATZ
chat: OK AT+CMEE=2
OK
chat: OK AT+UPSD=0,1,"claro.com.br"
ATE1
OK
chat: OK AT+UDCONF=0,0
OK
claro.com.br"
chat: OK AT+CGDCONT=1,"IP","claro.com.br"
OK
AT+UDCONF=chat: OK ATD*99***1#
0,0
OK
AT+chat: CONNECT
CGDCON,"claro
OK
AT
nsh> mount -t procfs /proc
nsh> ifconfig
ppp0 Link encap:TUN at UP
inet addr:10.86.92.115 DRaddr:10.86.92.115 Mask:0.0.0.0
nsh> ping www.smartcore.com.br
PING 192.185.211.71 56 bytes of data
56 bytes from 192.185.211.71: icmp_seq=0 time=790 ms
56 bytes from 192.185.211.71: icmp_seq=1 time=740 ms
56 bytes from 192.185.211.71: icmp_seq=2 time=690 ms
56 bytes from 192.185.211.71: icmp_seq=3 time=640 ms
56 bytes from 192.185.211.71: icmp_seq=4 time=770 ms
56 bytes from 192.185.211.71: icmp_seq=5 time=730 ms
56 bytes from 192.185.211.71: icmp_seq=6 time=680 ms
56 bytes from 192.185.211.71: icmp_seq=7 time=630 ms
56 bytes from 192.185.211.71: icmp_seq=8 time=770 ms
56 bytes from 192.185.211.71: icmp_seq=9 time=720 ms
10 packets transmitted, 10 received, 0% packet loss, time 10110 ms
nsh>