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OTA_UPDATE.md

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NEA2020 - OTA (Over-The-Air) Update

Step 1 - Unlock VSM (New BSI)

>752:652

Command Detail
2703 Unlocking service for coding
2704 XXXXXXXX Unlocking response for coding - XXXXXXXX = KEY - Must be given within 5 seconds after seed generation

:C6E2:03:03

Step 2 - Start OTA update on VSM

Command Detail
3101061001 Start OTA update

Expected answer: 710106100200

Command Detail
22 DB57 OTA Current mode

IVI / BSRF Zones Description

Zone Detail Example Decoded
F181 Application Software Identification (ASCII Encoded) 010A393639353637353038300001 9695675080
F182 Application Data Identification (ASCII Encoded) 010A393639353136393938300001 9695169980
F191 ECU Hardware Number (ASCII Encoded) 010A39383434333538303830 9844358080

Step 3 - Unlock BSRF (New BTA)

>77C:67C

Command Detail
2703 Unlocking service for coding
2704 XXXXXXXX Unlocking response for coding - XXXXXXXX = KEY - Must be given within 5 seconds after seed generation

:B7A9:03:03

Step 4 - Send WIFI settings to BSRF

Command Detail
2E F020 45423D6124567A2F4B7644562B7155207B6A45546D44494147424F585F7373696403 Write WIFI settings

Decoded (expected) default WIFI settings:

SSID Password ( Take care of the space before { ) Type
DIAGBOX_ssid EB=a$Vz/KvDV+qU {jETm WPA2-PSK

Wifi password is limited by design to 21 characters and Wifi SSID to 12 characters

Expected answer: 6EF020, returning 7F2278 during connection process

Step 5 - OTA Update Started, monitoring the progress

Command Detail
22 F021 WIFI AP connection state
22 F022 WIFI Internet connection state
22 F023 Download status
22 F024 Installation status