Look I did this myself to remove the counters on 4.3 and return all official.
1. Download official 4.3 and put it on sd card.
2. Install Mobile odin.
3. Flash the stock firmware through mobile odin and inject root to it.
4. Now after all boots install triangle away; we did this because triangle away only works with stock recovery.
5. Now after you use triangle away all counters will go away exept knox counter.
6. From odin pc flash the firmware again and wait for it to boot.
7. Now you will find all counters official exept system status custom on bootloader.
8. To get everything stock you will have to a factory reset again from the device.
This procedure takes time, make sure you have enough patience and battery.
This is for the 4.3. Didn't try it on 4.4.2.
Goodluck, report back please.
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