if you want to genrate jio code on meizu m3 note you have to change your iemi number to samsung or lyf phone go to eng mode  - connectivity - cds info - radio info and select phone one then you will saw at+
now delete + then you get at+egmr =1,7,"" place new iemi number between "" and give space between ag and + symbol

for 2nd iemi repeat the same steps but choose 10 and reboot your mobile

after reboot go to setting app myjio clear cache now turn on mobile data and open myjio

that it

you can generate unlimited bar code every time you needs to repeat these steps


tested on meizu m3 note

go further on your own risk