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Huawei G730u00 Network Error

Huawei G730u00 Network Error

The Huawei G730u00 is a smartphone model that was released in 2014. It has a 5.5-inch display, a quad-core processor, a 5-megapixel rear camera, and a 0.3-megapixel front camera. It runs on Android 4.2 Jelly Bean operating system and supports 2G and 3G networks.

Some users of the Huawei G730u00 have reported experiencing network errors on their devices. These errors may include no SIM card found, unstable signals, or no 4G signals found. These errors may prevent the users from making or receiving calls, sending or receiving messages, or accessing the internet. In this article, we will discuss some possible causes and solutions for these network errors.


No SIM card found

This error means that your device is not able to recognize the SIM card that you have inserted into your device. This may be due to dirt, damage, or improper insertion of the SIM card. To fix this error, you can try the following steps:

  • Take out the SIM card and clear off the dirt on the surface of your SIM card and SIM tray.

  • Test your SIM card on another device to see whether it is damaged. If it does not work on the other device either, please replace your SIM card at your carrier's retail store.

  • If your SIM card can be recognized on another phone, the issue may be coming from your device. In this case, please back up your data and request the Postal Repair Service on the official Huawei Support website or the Support App for a repair.

Note: Please always use standard SIM cards and do not attempt to cut them out on your own, as this may cause poor connection due to nonstandard shapes. SIM cards can be damaged by frequently removing them or using them in humid or strong magnetic environments.

Unstable signals

An unstable phone signal might be caused by metal or magnetic materials interruptions or enclosed environments. If you are facing an unstable signal problem, please follow the following step:

  • Remove any magnetic holder, or magnetic or metal cases that you may be using for your phone.

  • If you are inside a building with a poor signal, please go outdoors or move until you find a better signal.

No 4G signals found

If your 4G signal might be disabled or lost under certain circumstances, you can check out the below instructions to resolve this issue.

  • Swipe down from the top of the screen to open the notification panel.

  • Press and hold the Mobile Data icon to enter the settings interface.

  • Turn on 4G network. Note: If there is no relevant option, it means 4G is turned on by default.

  • Also, try this: Restart your phone or switch on and off the Airplane mode. Enable 4G again.

Note: If other phones using the same carrier in the same area have similar issues, it probably means that the local 4G network signal is generally weak and unstable.

If you are facing any other network problem, please try the methods listed below to get over the issue and enjoy the smooth and speedy connection.

  • Reset Network Settings. If the APN reset did not work, try resetting your network settings. Open Settings and search for Reset network settings; Tap on Reset network settings to rest it. Notes: Resetting network settings will delete WLAN and Bluetooth connection records and requires the lock screen password for authentication.

  • Diagnose Errors with Your Router. If you encounter an error when using your router, you can use the diagnosis feature to diagnose the error and save the error information to your computer. You can then provide the error information to Huawei customer service for further assistance.

  • Contact Huawei Customer Service. If none of the above methods work, you can contact Huawei customer service for more help. You can find their contact information on their official website or app.

I hope this article was helpful for you. If you have any questions or feedback, please leave a comment below.


  • [Huawei G730u00 Specifications]

  • [How to diagnose errors with my router]


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