1. Confirm the card model and operating system version, taking R-SIM as an example.
2. Open the card sticker activation tool and select Unicom 4G or related Unicom card stickers.
3. Confirm whether the network type of Unicom card is CDMA or GSM, and the model of Unicom card (such as 3G and 4G).
4. According to the tool operation prompt, insert the card sticker and SIM card into the card slot together, and wait for the tool to automatically identify it.
5. If the selected card model does not match the SIM card, an error message will be prompted and the card needs to be replaced.
Through the above steps, you can activate the Unicom card of the US version of the card pasting machine.