Holder

Let's try the following steps

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IQOS 2.4 plus operates in a temperature range between 10° and 40° C (50° - 104° F).
If the ambient temperature is low, try warming the Holder in your hand for at least 1 minute.

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You only need to press once on the Holders’s button to activate the heating blade.
Once the light indicator goes from blinking to steady, it’s ready to use.
After that, make sure you don't press the Holder's button again, as this may turn your device off.

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Use an IQOS Cleaning Stick to clean the Holder’s connector (bottom part of the device). 
Make sure the Holder’s connector is completely dry.

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Check that the Pocket Charger is switched ON*, plugged into a power outlet** and if it is charged (at least two solid white lights).
Place the Holder in the Pocket Charger (remember that the Holder’s connector should face down) and wait for 10 minutes or until the Holder is fully charged (Pocket Charger’s top light stays solid white).

* Press the Pocket Charger’s Power button once and see if the lights turn on. If not, press and hold the button again, for 3 seconds.
** Laptop USB ports may not have enough power to charge your Pocket Charger if it is completely discharged.

Pocket Charger

Let’s try the following steps

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Check for any potential damage on your Power Adaptor or USB cable. 
If you identify any damage, try using a new set of adapator and cable.
IQOS devices are intended for use only with official or authorized IQOS Power Adaptors for optimal charging.

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Make sure your Pocket Charger is switched ON*. 
Plug it into a power outlet** for at least 20 minutes. We recommend a full recharge, which requires 2 hours.
* Press the Pocket Charger’s Power button once and see if the lights turn on. If not, press and hold the button again, for 3 seconds.
** Laptop USB ports may not have enough power to charge your Pocket Charger if it is completely discharged.

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Reset your Pocket Charger. 
Press and hold the Power and Bluetooth buttons together for 3 seconds and then release. All lights on the Pocket Charger will briefly blink white after releasing the buttons.

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Use an IQOS Cleaning Stick to clean the Holder’s connector (bottom part of the device). 
Make sure the Holder’s connector is completely dry.
Place the Holder back inside the Pocket Charger (remember that the Holder’s connector should face down).

IQOS is an electronic device that heats tobacco rather than burning it. It should be used exclusively with compatible tobacco sticks. The use of IQOS is not risk-free.