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Author Topic: How to root & Unlock S4 SPH-L720T OK3 & PL1 for Global GSM  (Read 5036 times)

Offline idone

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How to root & Unlock S4 SPH-L720T OK3 & PL1 for Global GSM
« on: January 13, 2016, 07:55:57 AM »
DISCLAMER: Rooting the device will void the phone warranty, by following these steps you accepting it.

NOTE: Before to proceed be aware of the fact that root is not needed if you just would like to SIM unlock the phone as our app now works even on stock rom.

1.) Power off phone completely.
2.) Hold Home and Volume-(down), keep them pressed and power the phone on.
3.) Press Volume+(up) when prompted to enter "Downloading Mode"
4.) Connect USB and wait for all drivers to finish installing.
5.) Select L720TVPUCOK3.idoneapps.com.tar.md5 or L720TVPSCPL1_idoneapps.com.tar.md5 in Odin3 "AP/PDA" slot, then pust START on Odin3, the file will be flashed.
6.) After reboot repeat steps 1-3 to enter "Downloading Mode" and Flash cfautoroot in Odin3 "AP/PDA" slot.
7.) Proceed to unlocking  Click for Instructions
8.) Be sure to do GCF Setting for S4 Click for Instructions





*Prerequisites*
Odin3 Click to Download
ChainfireAutoroot Click to Download
Samsung USB Drivers Click to Download
idoneapps Custom OK3 Click to Download
idoneapps Custom PL1 Click to Download
Password (if needed)=idoneapps.com
« Last Edit: February 14, 2017, 05:34:39 PM by idone »

Offline Josh1490

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Re: How to root & Unlock S4 SPH-L720T OK3 for Global GSM
« Reply #1 on: March 30, 2016, 12:35:51 PM »
da error descomprimir L720TVPUCOK3.idoneapps.com.tar.... ayuda

Offline Nodial

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Re: How to root & Unlock S4 SPH-L720T OK3 for Global GSM
« Reply #2 on: March 30, 2016, 12:45:51 PM »
Hi Josh, use the password:
idoneapps.com

otherwise if the archive is corrupted you have to download it again.
See you ;-)

Offline Josh1490

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Re: How to root & Unlock S4 SPH-L720T OK3 for Global GSM
« Reply #3 on: March 30, 2016, 12:51:26 PM »
lo he descargardo 3 veces y da error de "archivo vacio"..

Offline Nodial

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Re: How to root & Unlock S4 SPH-L720T OK3 for Global GSM
« Reply #4 on: March 30, 2016, 02:16:53 PM »
Probably it's a problem of your internet connection, I'm sorry, a lot of people used it, so it is for sure a bad download.
See you ;-)

Offline johnny

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Re: How to root & Unlock S4 SPH-L720T OK3 for Global GSM
« Reply #5 on: October 17, 2016, 04:13:34 PM »
Hi!

I did the whole process perfectly, but at the end, the screen showed me a message that my phone was unlocked, i put my sim card, but my phone still has the sim lock, does it work only with some carriers or is it global?

Help please.

Thanks in advance.

Offline Nodial

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Re: How to root & Unlock S4 SPH-L720T OK3 for Global GSM
« Reply #6 on: October 17, 2016, 04:17:47 PM »
It's for any carrier, just make sure to use GCF Settings after the unlock since the S4 requires that:
https://idoneapps.com/settings.php

Also, have you used the instructions listed in the first post? The S4 requires a special modem for the unlock to work, such modem is included in the OK3 rom, you can get in the first post.

Other than that, if you live in the US make sure your phone is not blacklisted nor financed else the carrier you want to use may block it because of that.
« Last Edit: October 17, 2016, 04:19:27 PM by Nodial »
See you ;-)

Offline johnny

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Re: How to root & Unlock S4 SPH-L720T OK3 for Global GSM
« Reply #7 on: October 17, 2016, 04:46:18 PM »
Thanks,

I used the files from the first post, but i didn't notice my modem version, is it bad if i do a hard reset and re do the process again? just to make sure everything is ok.

I didn't know that the S4 need a special modem, i will check that out and let you know.

Thank you.

Offline Nodial

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Re: How to root & Unlock S4 SPH-L720T OK3 for Global GSM
« Reply #8 on: October 17, 2016, 05:18:01 PM »
Yes, the SPH-L720T needs the MK5 modem, so open our app anche check the baseband version, it should be that one.
See you ;-)

Offline johnny

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Re: How to root & Unlock S4 SPH-L720T OK3 for Global GSM
« Reply #9 on: October 17, 2016, 11:12:15 PM »
I double check my baseband version, and this is what i have, i dont know what step did i miss.

Offline Nodial

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Re: How to root & Unlock S4 SPH-L720T OK3 for Global GSM
« Reply #10 on: October 18, 2016, 01:23:53 AM »
Have you checked the IMEI? Have you used the GCF Settings?
Send me the log from the app, I'll give it a look.
See you ;-)

Offline johnny

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Re: How to root & Unlock S4 SPH-L720T OK3 for Global GSM
« Reply #11 on: October 18, 2016, 08:54:45 PM »
Hi,

Yes, i checked the IMEI on the original carrier (Sprint) and my carrier in Mexico (Telcel) and at this moment it's not blacklisted or locked. I did the steps of the GCF Settings the first time (log 1), then i hard reset the phone and my modem version was MK5, so i didnt do the flash, only installed the app and re do unlock (log 2) but none of the 2 apparently worked.

Hope you can tell me what im doing wrong.

Thanks.

EDIT by Nodial: I removed your logs.
« Last Edit: October 19, 2016, 02:28:55 AM by Nodial »

Offline Nodial

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Re: How to root & Unlock S4 SPH-L720T OK3 for Global GSM
« Reply #12 on: October 19, 2016, 02:48:00 AM »
From the log you can see the phone was locked and the app unlocked it:

> #State = Locked
> #39 = 1
> #30 = 14
> #MSL = 124619
> #39 = 2
> #30 = 0
> #39 = 3
> #30 = -2
> #39 = 4
> #30 = 1
> #State = Unlocked
> #Unlock = Success

The baseband is the good one:
> Baseband: L720TVPUAMK5

The network type is correctly set to GSM but you have no service.
> Operator: No Service, MCC: N.A., MNC: N.A.
> Radio Type: GSM,

The IMEI is not blacklisted, nor financed and by the way since you live in Mexico that doesn't matter anyway (outside the US a blacklisted/financed IMEI will work anyway).

My suspect is that someone did an IMEI repair on your phone since it results as a S5 while it's an S4 Triband, you can check it here:
http://www.imei.info/?imei=990005793247942

While doing an IMEI repair a proper valid certificate must be used, else the IMEI is not recognized as valid (even if formally correct) and thus the phone cannot be authorized on the network. The S4 is an old phone so it doesn't have the option to check if the used certificate is wrong, so we can't check if my suspect is right.

When you say that your phone is still locked do you mean that you still read "INVALID SIM" when using your Telcel SIM? Since of what I wrote above you shouldn't read that message anymore confirming that the phone is unlocked.
« Last Edit: October 19, 2016, 02:50:10 AM by Nodial »
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Offline johnny

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Re: How to root & Unlock S4 SPH-L720T OK3 for Global GSM
« Reply #13 on: October 19, 2016, 09:37:22 AM »
Yes, when i said "it still locked" i mean i read on screen "invalid sim card".

What options do i have?

I can try that certificate option if it's possible.

Offline Nodial

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Re: How to root & Unlock S4 SPH-L720T OK3 for Global GSM
« Reply #14 on: October 19, 2016, 09:42:11 AM »
Very weird, I would use this procedure:
https://idoneapps.com/forum/index.php?topic=321.0

After that unlock it again and let me know.
See you ;-)