Rom and Firmware both are same name, sometimes we call it firmware, sometimes ROM, or sometimes Combination file, in technical language we call ROM / FIRMWARE.
This combination firmware available only for Samsung android devices.
If you have combination firmware, then no need to buy any paid tool to remove frp lock, resolving issue of your device.
simple flash with COMBINATION FIRMWARE, and after that flash via STOCK ROM,
STOCK ROM: is a default firmware, that is built in by device manufacturer. that also can be downloaded from forums or by google it.
Why do you need combination file?
You can use combination file for FRP Google Lock removal process mostly. But there are also for network unlock.
Combination ROM Advantages:
Its help you to repair IMEI number in some models like S7 S7 Edge S6 S6 Edge…
Its very useful in bypass samsung account in too many models.
Its very useful in bypass Google account in too many models.
Its very useful for downgrade in some models.
Its help you to enable usb debugging.
its help to remove any security FRP / Reactivation Lock from Samsung like 2016-2017-2018
Combination Files :
Samsung Galaxy J600F (2018) Combination!
- Combination: COMBINATION_FAC_FA80_J600GTVJU1ARD6.rar (563M) | LINK MAX SPEED
Samsung Galaxy J600GF (2018) Combination!