Deleted the ringtone of Nubian X6 by mistake. How to restore or where to download?

Hello, I suggest to restore the official credit card system. The specific credit card method is as follows (1). Please back up your contacts, text messages, software and other data.

(2) Copy the downloaded ROM "xxxxx.zip" to the root directory of the memory card, and the download address is /service.php? sid=5

(3) Press the power button and the "Volume Increase button" at the same time, and then release the power button to enter the recovery mode.

(4) Select Erase Data/Restore Factory Settings, and then select Yes-delete all user data.

(5) Return to the main interface, select Erase Cache Partition, and then select Yes-Erase Cache.

(6) Return to the main interface, select Install zip from SDCARD, then choose choose zip from sdcard, and then select rom package XXXXX. The compressed file you put into the memory card.

(7) Select Yes -xxxxx.zip (Yes-install xxxx.zip).

(8) Wait for the completion of machine brushing, return to the superior menu, and finally choose to restart the system now-No.

3. If you still can't solve your problem, please take the related products to Nubia for after-sale. Nubia will provide the after-sales policy with the same warranty as ROOT and brush machine. Let you experience the third-party ROM without worrying.

After-sales outlets query: /service.php? Sid=3. If you need help, please contact customer service at 400-700-6600 for consultation. You can also go back to the factory for examination and treatment. Please call the customer service hotline at 400-700-6600 for details.