Why can't I send or receive SMS on my Vietnamese SIM card in Nha Trang?
Based on 2 discussions with 2 participants · Last activity: 6 days ago
TL;DR
SMS won't work if your Vietnamese SIM has zero balance — top it up at any FPT Shop. Check your balance by dialing *101#.
What the community said
If you rely on roaming to receive SMS or payment confirmations abroad, your home operator may charge extra for this — it's more reliable to use a local Vietnamese SIM with a topped-up balance instead.
6 days ago
SMS stops working in both directions once your SIM balance hits zero. Fix it by topping up with cash at the nearest FPT Shop — SMS will start working again right away.
6 days ago FPT Shop
To check your remaining balance on a Vietnamese SIM card, dial the USSD code *101# on your phone — the balance will show up instantly on screen.
6 days ago *101#