Does the SPH-L720T digitizer differ from the l720 (non-triband)?

Hey Jose Andrade, Are you somehow brazilian ? :)

I couldn't precisely find your question about the l720 vs l720T digitizer difference, I am sure the l720 Digitizer would not fit on the triband model I couldn't find why but I am sure it wouldn't fit

Here its a totally different phone but I am sure its the awnser why: http://cdn1.appleinsider.com/ifixit02071...

the basic answer would be that some inner components are different designed to maybe reduce costs using lower quality components and as result sell it cheaper with more affordable prices than usual...

I could find on eBay a digitizer for your l720T --> http://www.ebay.com/itm/NEW-OEM-Factory-...

and for a maybe future advice if you trying to root and install a custom Rom DO NOT install roms from l720 on the 720T it will probably brick it due to different chips. But maybe I am wrong but I doubt till proved opposite.

This is really interesting. Ting (wireless) can't support the Triband version and some people may need to convert their phones. It's nice not to feel limited!

Here is the truth. If you are going to replace the digitizer and the frame as one unit make sure you get the frame marked as the i9505 for the Sprint SPHL720T Do not use any other like the i337 it will fit in the i337 but I promise you that you will not be able to put the phone in sleep mode. The phone will stay lit all the time and flash on and off every 5 seconds.

Just spent a month on this and there is a difference. Make sure any compnent you change is specifically for the L720T. This includes the logic board and the charging port.

L720 Soft Key Cable is longer than that which is on the L720T.

The solution was thought to be change the Charge port cable as well but you lose certain functionality. TriBand Logic Board differs in a slight variation as do all the Samsung Galaxy S4 models between carriers. Unfortunately Samsung has done this to limit easy swappable parts between carriers similar to Motorola with Razor V3s in the Early 2000s.

That is affirmative. I have personally JUST experienced this, although the digitizer I bought was dual purpose. I had another broken S4 on hand that I wanted to see if the digitizer was the reason she died, and after I checked that problem, I tried to put it in the L720T and it will not work. You cna use it to fire up the phone and even use the digitizer, but the problem is the flex PCB attaching one circuit board to the other mainboard was changed in that revision causing you not to be able to connect it . This merely operates the Home/Back/&Menu keys so you can only do so much before having to restart and try again. At the very least you can operate your phone in a pinch and get critical contacts or stuff off of your phone by using the L720 digitizer but you can't install it unfortunately.

Yes in fact it does. There are 3 major differences. I accidentally purchased an LCD replacement thinking there wasn't. Don't make the same mistake.

1) There is a black power antenna down the left side of the L720 phone that rides under the ribbon cable connecting the 2 boards. This power antenna is not there on the L720T. The corresponding boards are modified to reflect this.

2) The ribbon cable assembly that goes from the power input / home-back button daughter board is a long cable that sits on the left side of the phone. This same cable previously covers the black power antenna. There is a large connector that attaches to the mainboard at the very end. Just below that connector is another smaller one that connects to the LCD / Digitizer on the L720 model. On the L720T model the connector is much much closer to the power input board.

3) The LCD / Digitizer on the L720 is a very long cable exiting the assembly freely toward the bottom which has to feed through the frame to reach that connector referenced in #2. As a result, the L720T LCD / Digitizer also had to adjust thus having a super short cable (that also feeds through the frame) but makes the connection much lower on the ribbon cable below it.

Boards are marked in white silkscreen differentiating the models so this information is 100% FACT not just educated guesswork. HOWEVER - both digitizers are fully compatible with one another EXCEPT the home/back buttons will not be able to be connected. So if you just need an operational digitizer and cant find the right one, they will at least work to a degree. To get around the pesky problem of not being able to hit those buttons one can find his or her USB micro data cable (not the charging cable), download the Windows ADB drivers, download your Samsung S4 drivers, and use google's VYSOR to cast your screen. Because the digitizer works you can enable Developer Mode, & then turn on USB debugging, and accept the control connection security prompt (this is just a confirmation of connection prompt) and then you can use them in tandem to get critical data.