Hello guys/support im from Venezuela just getting sad because i bought this router some time ago with 3G pendrive, in that time works well, but not any more. Im trying to use a 4g pendrive, but i have no clue which of them could be compatible, how you know economy in VE is broken so the money is gold, i want not to waste it buying something wrongly, i will really be thankful if you help me. The following models i will list you are 4G with sim card to USB (for the USB entrance of router) please let me know which could work :)

WI-POD 4G:

JIO 4G

PD: I've already checked on the list of compatible devices below. Thank you again. 

https://www.tp-link.com/ve/support/3g-comp-list.html?model=TL-MR3420