1_ turn off your phone
2_Press and hold the Volume down+home + Power button, for put your phone in download mode
3_conect your phone with pc .
4_ install drivers if you need
5_ Download odin
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6_ Download combination file A520FXXU4ARA4
*U4
6_ Download frimware file A520FXXU4CRF1_COS4CRF1
Follow the video below for the rest of the explanation 🔻🔻🔻🔻🔻🔻🔻🔻
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samsung A520f FRP lock bypass google account 8.0 oreo u4