The Mantra MARC11 Android POS terminal relies on an internal biometric module to process AEPS transactions. When this module's RD service expires, the entire terminal cannot perform biometric cash withdrawals. You must process a Marc11 device recharge to restore service.
Finding the Serial Number
Do not use the phone's IMEI. Open the 'Mantra RD Service' app on the MARC11 terminal to find the specific biometric SR NO. Enter this into our portal for fast activation.
Clear the Android app cache after payment to sync the new validity period.