2.1 Insert A SIM Card
The EZR33L router requires to insert at least one SIM card to connect to the mobile internet networks. The SIM card is not included with the router.
Use a Nano SIM card (12.3x8.8mm) on the 4G router. If it's a new SIM card, please follow the instruction from the mobile carrier to activate the SIM card.
EZR33L router uses Nano SIM cards

Clean the SIM Card

If the 4G router cannot detect the SIM card or got the error message of "SIM card unavailable," firstly verify if the SIM card is inserted correctly. Secondly, please check if the SIM card is clean, especially on the golden contacts. If there is dust/dirt/oil on the SIM card, you can follow the tips to clean the SIM card.
Please always turn off the power while inserting or taking out the SIM card.
  1. 1.
    Use the SIM pin to push the pinhole gently until the SIM card holder pops out.
  2. 2.
    Put the primary SIM card on the first slot. Make sure notch in the inside direction and pins face down. There is only one correct way to settle the Nano SIM card into the SIM cardholder.
  3. 3.
    Carefully reposition the SIM card holder in the slot and push it back gently.
Insert A SIM Card in EZR33L 4G Router
i. Please use an unlocked and activated SIM card.
ii. A few parts of the SIM card holder (near the handle) will stay outside. It's a normal situation. You can ignore it. ‌
iii. Please insert a SIM card in the SIM#1 slot on the SIM card holder unless you choose to use secondary SIM#2 on the mobile interface.
iiii. The 4G router can work well with a single SIM card. You can also insert an extra SIM card as a backup connection. To active the backup connection, please enable to auto-switch option on the mobile interface.
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