Download Infinix X620B Flash File 

          X620B-Q6361A-O-Fix fILE

          X620B-Q6361A-O-190108V34-zero_infinix-user-545-QFIL

          QPST Tool.

How to Flash Infinix X620B:

1-Download Infinix X620B Flash file

2-Download QPST Tool.

3-Instal Qualcomm driver.

4-Run QPST tool.

5-Short Test Point (Check device manager)

6-Click Load XML and browse for rawprograme-unsparse.xml in stock

ROM file.

7-Click Load Patch and browse for patch0.xml in Stock ROM file

folder.

8-Select the firmware bu clicking in browser of Search Patch.

9-Select Download and wait for the flashing to be finish.