Galaxy J4 SM-J400M Binário 11 Android 10 Q Brazil ZTO – J400MUBSBCUC1 (Flash File). Free download Official Firmware ROM for LG. You can use it to update the device, fixing the device facing bootloop issue or any software issue.
– Make sure that LG Device battery is charged more than 30%. – Extract the firmware file with the latest version of winrar or 7zip. – Always check Device model before downloading the firmware file. – Also install a latest version of USB Driver before installing firmware file.