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Help how can i update firmeare

Although the JI6 firmware is from Samsung, the encryption was hacked, it wasn't meant for release yet.

So you can't really say this is official yet. Furthermore, T-Mobile has said last week, not to install any firmware updates, not even the ones via Samsung Kies.

You should hold off, next week there will be an announcement from T-Mobile as to the current state of an official update.
 
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Although the JI6 firmware is from Samsung, the encryption was hacked, it wasn't meant for release yet.

So you can't really say this is official yet. Furthermore, T-Mobile has said last week, not to install any firmware updates, not even the ones via Samsung Kies.

You should hold off, next week there will be an announcement from T-Mobile as to the current state of an official update.

does it matters if my phone is rooted?
 
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I was trying to unroot my phone yesturday and it got loked on the galaxy S screen it wont boot up what can I do? and the volume up and down plus power at the same time dosent work to do a master reset how can I make a master reset?


Do you know how to use odin? If so, just flash your phone back to stock firmware. If not, go here and download odin as well as the drivers and the stock firmware.
 
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yea but for odin you need to do the volume up and down plus power to go to download mode and my phone dosent do that .

I picked this up from a post on xda. It certainly worked for me:

"I thought i had a hardware locked phone and i was about to send it out to samsung under warranty.
But i have found a way to enter download mode 100% of the time.
Turn off the device.
Immediately plug in charger.
At the same time start holding vol up/down
Download mode for me everytime! hope this helps."
 
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