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'''How To Update Huawei Ascend G7 to Android 6.0.1 Marshmallow'''

flash the last version of your device search for your model update Samsung Galaxy Note 4

try DOWNLOAD MODE (1) Turn off your Samsung Galaxy S8 (2) Press and hold the Volume Down + Bixby button + Power button at the same time for 3-4 seconds. (3) Once the warning “WARNING!” Is displayed, release the three keys and then press the “Volume up button ” to Continue. flash the officiel firmware '''update Samsung Galaxy S8'''

try this method '''FRP Bypass Samsung Galaxy J3 2016 J320FN'''

try to flash the last update of your xperia device '''Update Xperia C5 Ultra Dual Android 6.0.1 Marshmallow'''

it s a virus try hard reset your device '''Hard Reset GOOGLE Pixel 2'''

hey mate you need to flash the repair firmware 4 files roms try this: Download Samsung Repair Firmwares – Samsung 4 Files Firmwares

Try different USB Phone cables and install USB driver for Samsung this article u find driver Android USB drivers for all Smartphones and Tablets

try this Android USB drivers for all Smartphones and Tablets

How to Create Gmail Signature on iPhone and android