repair imei using sp flash tool - nvram.bin mtk6582 - nvram.bin download - If you have a Mediatek Android phone and have lost access to the network by not being able to make or receive calls and you can see the " INVALID IMEI " notification on the status bar, this means that your phone has probably lost or damaged NVRAM . But you can fix this. This method is only possible if you have a complete nandroid backup of your phone before losing NVRAM (by any means for example by formatting). The nandroid backup also backs up your phone NVRAM in a NVRAM .bin file that you can use to restore your phone NVRAM as it will fix an invalid IMEI problem. But if you do not have such a backup, you can still recover from this issue by following another. Also Read How To Flash ROM of Samsung Android Devices Using Odin Alternate Method to repair imei using sp flash tool - nvram.bin mtk6582 Disclaimer: This tutorial includes a Flashing Android smartphone. If you do not follow it correct...