Download samsung J4 U9 Network Unlock fix file.
How to Flash Samsung :
Step 1 Find Odin Firmware Files.
Step 2 Extract the Firmware Files.
Step 3 Install the Right Drivers.
Step 4 Install Odin on Your PC.
Step 5 Put Your Phone in Download Mode & Connect to PC.
Step 6 Flash the Firmware Files.
J400M U9 Unlock Network [Fix Modem]
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