i have found tht almost all honor phones are functioning this way..
(just watched the video of honor 7 dual sim capabilities & there are many others.. )
In settings , it actually let u choose from both sim slots tht which sim u want as 4G & which sim for data (both options are there) u can select either 1st sim as 4g oR 2nd sim as 4g , your choise & Nd separately u can choose from which sim it should provide Data connection.. Your choise !!
u can select any sim as 4g from both - change tht option from phone On , no need to physically take out the sim & insert it to 1st sim slot for 4g !!
now question is why this happen in honor devices ??!!
honor may do this kind of things to optimize more battery efficiency.. & according to many techy ppl if 3g mode is enable where 3g network is not available or not in use
it eats battery significantly.. ( evn more than when 3g available & in use - tht's y we do GSM only mode rather than WCDMA as trick to reduce battery drain when no 3g available) & In practical way , most of us particularly when we have activated 1 desired sim as 4g or 3g we won't use second sim as 3g too.. Here , i wanna say both sims are capable of 4g/3g/2g & without need of changing it physically..
well it's a little draw back for sure but not tht much big as it seems to be at very firsttime..!!