Why Does a Money Counting Machine Not Recognise New Banknotes?
If your money counting machine has worked without trouble for years and has suddenly started rejecting a new banknote or flagging it as "suspect currency", the device is not necessarily faulty.
More often than not the cause is banknote firmware that is out of date.
How Do Money Counting Machines Recognise Banknotes?
Modern money counting machines do not sort notes by size alone. Sensors and software inside the device check various properties of the note to determine which currency and denomination it is.
The machine looks at a note from several angles at once. An image sensor reads the pattern and the printing, an infrared sensor checks layers invisible to the eye, ultraviolet light looks at the security fibres, a magnetic sensor searches for the magnetic traces in the ink, and a thickness sensor measures how thick the paper is and whether two notes are stuck together.
All of those measurements are compared against reference values held in the device's memory. Those references live inside the firmware.
When a country issues a new banknote series, or changes the existing notes, machines running older firmware may not recognise the new properties. The sensors are not broken; the note simply is not on the reference list the machine holds.
As a result the device may:
- reject the note,
- raise a counterfeit warning,
- read the denomination incorrectly,
- or fail to count the note at all.
Firmware Problem or Fault?
There is a practical way to tell the two apart.
If the problem appears only on one particular note — it stumbles on the newly issued notes but counts the older ones without trouble — it is almost always a firmware matter.
If the problem appears on every note and at random, if paper jams during counting, or if the machine has started to sound different, then a mechanical cause is far more likely. Dust building up on the sensors can produce similar symptoms. For that distinction and the other fault types, see our article on why a money counting machine gives errors.
Knowing the difference matters, because the fix and the cost are nothing alike.
What Can You Check Yourself?
A few minutes of these checks before calling for service can save time:
- Try the same note several times. A note fed in crooked or the wrong way round can also be rejected; straighten it and try again.
- Compare against an older note. If the old series counts without trouble, suspicion points to the firmware.
- Clean the sensor surfaces. Dust and paper debris can cause misreads. Wipe them with a dry, soft cloth in the way the manual describes.
- Note the firmware version. Most devices show it in the menu. Having it to hand speeds things up when you call us.
Even when these checks do not solve the problem, being able to tell a technician "it stumbles on this note, not on the old ones, and the version is this" shortens the diagnosis.
Do You Need to Replace the Machine?
In most cases, no.
If the model supports updates, the new banknotes can often be introduced to the device with the appropriate currency or banknote firmware update.
So rather than writing off a machine that does not recognise new banknotes, or replacing it outright, the sensible first step is to check the firmware version.
We are not saying every device can be updated. On very old models the manufacturer may no longer publish new firmware; in that case the honest answer is "this device cannot be updated", and then we talk about refurbishment or replacement options. But assuming that without trying means discarding a working machine for no reason.
What Happens During an Update?
An update renews the banknote references held in the device's memory. Your counting history and device settings are not the target of the operation.
Duration and method vary by model. On some devices the update can be done on site; on others the machine has to come in to us. We can only say which applies once we know the brand and model, which is why the first thing we ask when you call is exactly that.
Firmware Update Service at Elektro Değişim
Elektro Değişim provides banknote firmware and currency update services for a range of money counting machines, GLORY first among them, as well as Hitachi and ProNote.
We have worked in money counting machine sales and technical service since 1995, and alongside Istanbul we support devices sent to us by courier from across Türkiye.
If the problem turns out to be mechanical rather than firmware, we can help on the maintenance and repair side as well; our expertise there is concentrated on GLORY devices.
If your money counting machine does not recognise new banknotes, or raises counterfeit warnings it should not, having the firmware checked before replacing the device may well be the more economical solution.