Unraveling the Redmi 9 NV Data is Corruped Fix: Troubleshooting and Fixes


The Redmi 9, known for its affordability and reliable performance, has gained a sizable user base. However, like any other smartphone, it isn’t entirely immune to issues. One common problem faced by Redmi 9 users is “NV data is corrupted,” which can lead to connectivity and functionality problems. In this article, we’ll delve into the causes of this issue and provide step-by-step solutions to help you resolve it.

Understanding NV Data

NV Data, or Non-Volatile Data, is a critical component of a smartphone’s software. It contains vital information related to your device’s hardware configuration, including the IMEI (International Mobile Equipment Identity) numbers, WiFi MAC address, and other settings. When the NV data becomes corrupted, it can disrupt various functions on your phone.

Common Symptoms of NV Data Corruption:

  1. No Network Signal: The most common issue is the loss of mobile network signals. You may see a “No Service” or “Emergency Calls Only” message.
  2. IMEI Unknown: The phone may no longer recognize its IMEI numbers, which are essential for network communication.
  3. WiFi and Bluetooth Issues: Problems with WiFi or Bluetooth connections can also occur.
  4. Invalid or Null IMEI: In some cases, the IMEI numbers may display as “null” or “invalid.”

Causes of NV Data Corruption:

NV Data corruption can result from various factors, including:

  1. Software Updates: Sometimes, software updates or custom ROM installations can cause NV data corruption.
  2. Factory Reset: Incorrectly performing a factory reset can lead to this issue.
  3. Malware or Virus: In rare cases, malware or a virus may corrupt NV data.

Fixing Redmi 9 NV Data Corruption:

Here are steps to help you fix the NV data corruption issue on your Redmi 9:

Method 1: Restore IMEI Using Engineering Mode

  1. Dial *#*#3646633#*#* on your phone to access the Engineering Mode.
  2. Navigate to Connectivity > CDS Information > Radio Information.
  3. You will find two options for Phone 1 and Phone 2. Select the one that corresponds to your SIM slot.
  4. In the AT+ line, type AT+EGMR=1,7,"IMEI1" for SIM 1 and AT+EGMR=1,10,"IMEI2" for SIM 2. Replace “IMEI1” and “IMEI2” with your actual IMEI numbers.
  5. Click “Send AT Command” to save your IMEI numbers.
  6. Reboot your phone.

Method 2: Restore IMEI Using a PC

  1. For this method, you will need to have your phone’s IMEI numbers. If you don’t have them, you can find them on the original phone box or the SIM card tray.
  2. Download and install the “Maui Meta” tool on your PC.
  3. Connect your Redmi 9 to the PC and launch the Maui Meta tool.
  4. Select the “Download” tab and click on “Options.”
  5. In the “Connection” section, select “USB COM” and choose the COM port associated with your phone. Then, click “OK.”
  6. Click the “Reconnect” button, and your device information will appear.
  7. Click the “Start” button, and the tool will restore your IMEI numbers.
  8. Reboot your Redmi 9.

Method 3: Seek Professional Help

If you are uncomfortable with technical procedures or none of the above methods work, it is advisable to seek assistance from a professional mobile technician who specializes in resolving NV data corruption issues.


The “NV data is corrupted” issue on your Redmi 9 might seem daunting, but with the right approach and the provided methods, you can restore your device’s functionality. Always ensure that you have the correct IMEI numbers and back up your important data before attempting any fixes. If all else fails, don’t hesitate to consult a professional technician to ensure the problem is resolved without causing further damage to your device.