Step 2: Check the charger or power adapter. You don't have to be a technician to be able to determine if the charger or the power adapter is damaged or not, all you need is common sense. Look Options. 22-06-2017 15:53 - edited ‎22-06-2017 15:56. According to specs: Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot. 802.11 a is required for 5ghz stand alone but the "n" should be both. I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. Choose Network Mode and choose the best option for your Samsung Galaxy J3 (2016). If it got a 2G/3G/4G Auto option, turn it on. After that, your Samsung Galaxy J3 (2016) will automatically select one that is available in your area. 5.Re-Inserting The SIM Card. You can re-insert your SIM card to fix when mobile data is not working on your When you are purchasing a service plan, you will be required to purchase a SIM kit. This kit will include the 3-in-1 SIM sizes that fit all cell phones. Punch out your correct SIM size when you receive your SIM kit in the mail. A Samsung Galaxy J3 uses a Micro sized SIM Card. The correct SIM size in a 3-in-1 punch out is shown below. Next Steps Vay Tiền Nhanh Ggads.

samsung j3 2016 4g not working