I have Celcom Wireless Broadband RM 100 package with Huawei B618-22d Router. Every month early finish internet but Video Walla still have many Gigs left, then will have problem load YouTube. I'm thinking get a Celcom Xpax Unlimited prepaid Sim card use with the B618. Is my lock router support? Many thanks.

Btw, i still have few months will finish contract, might want keep the router.