Even if the T2C does not have a SIM card, the firmware upgrade can be done using a mobile phone (internet connection required).
Method 1: Mobile phone connects to T2C WiFi
1. Power up the T2C;
2. Wait for 40 seconds, the device will turn on the WIFI network（AutoKit_xxxx);
3. Mobile phone connects device WIFI (AutoKit_xxx) Default Password (88888888) ;
The mobile phone accesses the Internet, the mobile phone pops up a reminder, choose to "use the cellular network";
4. Open the mobile browser and visit 192.168.3.1;
5. Scroll down to the footer, if there is an update, it will appear here, and chick "Update.
Method 2: Mobile phone connects to T2C Bluetooth
1. Power up the T2C;
2. Turn on the Bluetooth of the mobile phone to search and pair “AutoKit_xxxx”;
3. After waiting for 40 seconds, the phone will pop up a reminder, select Use CarPlay;
4. Open the mobile browser and visit 192.168.3.1;
5. Scroll down to the footer, if there is an update, it will appear here, and chick "Update".
*When upgrading, the red LED blinks alternately
T2C Tesla Box Upgrade Tutorial Using Android Phone
1. Power on the T2C;
2. Wait for 30 seconds, the box will turn on the WIFI network;
3. Connect the box WIFI (AutoKit_xxxx) password 88888888;
4. Mobile phone browser access 192.168.43.1;
5. Scroll down to the footer, and click on "Switch P2P", at this time the web page
will prompt the detection of new firmware, but do not click to update!
6. Mobile Settings - WLAN - WLAN Direct Connect - Connect to the box WiFi;
7. Go back to the webpage and click update.
Video tutorial: https://youtu.be/SVyx7EeFBuA
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