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1x green OBU is OK.
2x green
OBU is OK, but battery or OBU
account balance is low. In case
of low OBU account balance
(applicable for prepaid accounts
only), top up the account. In any
case, go to a customer service point.
4x red
OBU is NOT OK. Go to a customer
service point and/or call BelToll
Infoline immediately.
No ash
OBU is NOT OK. Go to a customer
service point and/or call BelToll
Infoline immediately.