Download latest Stock Firmware for No.1 G2 smartwatch from here or here. Download previous firmware from here.
Archive name: NO.1 G2 Smart Watch Firmware 183797 20150612
Archive file size: 10 MB
Platform: Mediatek MT2502
To flash firmware watch this tutirial, maybe it helps: Video: How to flash latest v2.9 firmware on RKM M3, Podoor MI W2 or PW305 watches
Caution: Please do not update firmware unless you know what you are doing, you really want it or it is absolutely necessary. Firmware updates may occasionally have bad results, like bricking your device, temporarily or permanently. The firmware update process is done entirely at your own risk. Before attempting to update the firmware, back up your data.
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