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Help like WTF sammy

Your problem is a lot more complicated than I originally thought. Hard to find stock firmware for Sprint MVNO (Boost) version.
Have a look at this thread.
https://forum.xda-developers.com/general/general/rom-pl1-samsung-galaxy-j3-emerge-sm-t3580396
Post #39 is supposed to have link to firmware that should work.
Seems that to get any of the custom ROMs to have data/wifi, you had to pick one based on the original stock firmware that was on your phone when you started. Any miss match borks data.
 
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J327P_Stock_QI2_Deodexed_Deknoxed ? i believe i tried that one. dont hold me to that but i think so..... is it even possible to change from aqf4 to ql2 ?
Samsung firmware is sequenced alphanumeric from old to new. QF4 is older firmware than QL2. Most of the time, it's harder to downgrade or flash a older version than to update to newer firmware.
This will explain the difference between odex and deodex
https://android.stackexchange.com/q...e-difference-between-odexed-and-deodexed-roms
Deknoxed means they removed all or most of the Samsung Knox security features.
 
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