# Insert SIM Cards

## Preparations

Use a Nano size SIM card (12.3x8.8mm) in the EZR35-5G router. If it's a new SIM card, please follow the instructions from the provider to activate it before inserting it in the router.

<img src="https://content.gitbook.com/content/LsvvMgxX93QfZPQZVMM0/blobs/NZFWBPJby9puG82VEVR4/OutdoorRouter_SIM-Card-Compare.jpg" alt="" data-size="original">&#x20;

{% hint style="warning" %}
Please always **turn off the power** while inserting or removing the SIM card.\
Please use an unlocked and activated SIM card.&#x20;
{% endhint %}

## **Insert A SIM Card**

Turn off the router power before inserting or removing a SIM card.&#x20;

1. Locate the SIM1 and SIM2 slots in the top right corner of the motherboard.
2. Hold the lid of the SIM card slot and slide left to open the cover.
3. Put a Nano SIM card in the **SIM1** slot. \
   \&#xNAN;*There is only one correct way to settle the SIM card - the gold pins should be face down, and the notch should be on the top right corner.*
4. Cover the SIM lid and slide right to lock the lid.

<figure><img src="https://1820532588-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FLsvvMgxX93QfZPQZVMM0%2Fuploads%2FMpYPLGnGJz6sbsLxHyhL%2FEZR35-5G-IInsert-Nano-SIM-Cards.jpg?alt=media&#x26;token=03570173-5bef-4de6-8fc5-35636c7e4161" alt=""><figcaption><p>Insert SIM Card in SIM1 SIM2 Slots On The EZR35-5G Router</p></figcaption></figure>

{% hint style="info" %}
**Check and Clean the SIM Card**

If the router cannot detect the SIM Card:

First, confirm that the SIM card is already activated and has enough data allowance.

Then, check if the SIM card is inserted in the correct orientation and fully seated in its slot. The golden contacts should face down.

After that, inspect the SIM card's gold contact points to ensure they are clean and damage-free. If you notice any dust or dirt on the gold contacts, gently clean them with a soft, dry cloth or eraser.
{% endhint %}