For those of you with AT&T Galaxy S4 SGH-i337 or Sprint Galaxy S4 SPH-L720, we have some good news for you there are stock firmwares now available so you can fully unvoid and unroot your device. There should be more coming for all the other variants such as T-Mobile and Verizon so stay tuned folks. Also, stock firmwares are already available for GT-i9500 and GT-i9505 users at SamFirmware.com.
You can follow our tutorial on How to Root Galaxy S4 and also see our Galaxy S4 stock firmware page for the actual stock firmwares.
![How to Unlock SIM on AT&T/T-Mobile/Canadian Galaxy S4! [SGH-i337/SGH-M919/SGH-i337M]](https://galaxys4root.com/wp-content/themes/galaxys4root/img/thumb-medium.png)
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Can I flash my galaxy s 4 AT&T SGH-i337 with another stock firmware like the international GT-i9500s’ and will my LTE still work??
Can someone please answer this guys question?
lol no it wont work
I rooted my s4 (at&t i337) and deleted some bloatware (chaton, play books, play music). Apparently something that I deleted messed up my S Voice app. If i download the i337 firmware (above) and boot in clockworkmod recovery and flash that firmware, will it be back to normal? Meaning, will all the bloatware be back on it and hopefully fix my S Voice problem?
yes this should.
Hi,
I have an AT&T Galaxy S 4 and I am switching to T Mobile soon. I would like to have all of the features that T Mobile has such as Wi-Fi calling and full connectivity with all of their bands. However, I would also like unlimited tethering if at all possible.
If I flash my phone with T-Mobile’s firmware, will my phone be the same as a T-Mobile Galaxy S 4?
Will I be able to have unlimited tethering if I simply root my phone, or do I need a different tethering app to bypass T-Mobile’s tethering cap?