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Go Back   GSM-Forum > Product Support Sections > Hard/Software Products (official support) > Octopus/Octoplus > Octopus Samsung/Octoplus Samsung

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Old 09-17-2018, 18:16   #1 (permalink)
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Thumbs up How to unlock latest S8+ SM-G955U from Sprint? [Solved]


Got one S8 plus from USA network Sprint. It has the latest firmware and binary

Firmware is G955USQU5CRG3 / G955UOYN5CRG3

Tried everything last 3-4 days, various combination files, searched in ths section everything related tu G955U etc...

Using latest Octoplus 2.7.1

Thx in advance

Last edited by Octopus box; Yesterday at 12:51.
 
Old 09-18-2018, 05:52   #2 (permalink)
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Hello.

Unlock S8+ G955U from Sprint is not supported at the moment.
 
Old 09-18-2018, 06:15   #3 (permalink)
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I can help you if you need it unlocked @spalato
Use G935p method
 
Old 09-18-2018, 12:06   #4 (permalink)
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Quote:
Originally Posted by WirelessChamp View Post
I can help you if you need it unlocked @spalato
Use G935p method
I have done so. I have flashed the latest combination file for G955U. Selected G935P and yes, it starts unlocking, checks if the phone is rooted, but it's not, then installs something that can't be installed and finally says the phone is unlocked, restarts the phone but it's not unlocked...

Your method works for all firmware till version 4. Mine security is version 5...

.
 
Old 12-07-2018, 16:50   #5 (permalink)
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To Octopus makers, one question


This Sprint USA Samsung G955U does not asks for NCK when different SIM is inserted

Can this phone be unlocked via server and credits?

Thx in advance


.
 
Old 12-08-2018, 10:51   #6 (permalink)
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Yes, Sprint device shouldn't ask NCK code. Just insert non-Sprint SIM card and slide down the upper shutter - "Invalid SIM" should be written it there.

Then perform necessary steps for unlocking - write proper Combination modem and perform the "Unlock" operation.
 
Old 12-10-2018, 16:48   #7 (permalink)
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Thank you

One more question. How many credits does G955U Sprint unlock need?

Thank you in advance.

Last edited by Octopus box; 12-10-2018 at 17:04.
 
Old 12-10-2018, 17:04   #8 (permalink)
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You need 80 Octoplus Server Credits.
 
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Old 12-10-2018, 17:06   #9 (permalink)
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Quote:
Originally Posted by Spalato View Post
Thank you

One more question. How many credits does G955U Sprint unlock need?

Thank you in advance.
Hello, we need 80 credits for sprint and 100 credits for t-mobile
read:

New credits consumption for T-Mobile Unlock via Server from 26.02.2018:

- Unlock TMB/SPCS Samsung Galaxy Core Prime SM-G360T, SM-G360T1, Galaxy Grand Prime SM-G530T, SM-G530T1, Galaxy S7 SM-G930T, Galaxy S7 SM-G930T1, S7 Edge SM-G935T, S8 SM-G950U, SM-G950U1, S8+ SM-G955U, SM-G955U1, Note 8 SM-N950U, SM-N950U1, S8 Active SM-G892U, S9 SM-G960U, SM-G960U1, S9+ SM-G965U, SM-G965U1, SM-J337T, SM-J737T requires only 100 Octopus/Octoplus Server Credits!

- Unlock Sprint Samsung Galaxy S7/S7 Edge/S8/S8+/S9/S9+/Note 8/J3 Emerge/J7 Perx. SM-G960U, SM-G960U1, SM-G965U, SM-G965U1, SM-G950U, SM-G950U1, SM-G955U, SM-G955U1, SM-N950U, SM-N950U1, SM-N950U1, SM-G930P, SM-G935P, SM-J327P, SM-J727P requires only 80 Octopus/Octoplus Server Credits!

Octoplus Credits Consumption [Updated 23.11.2018]
 
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Old 12-11-2018, 19:13   #10 (permalink)
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I flashed the phone with Combination file

COMBINATION_FA70_G955USQU5ARH8_CL12542406_QB195319 54_REV00_user_mid_noship_MULTI_CERT.tar

And tried to unlock it. This is what I got

-----------------------------------------------------------------------------------
Platform: Samsung Android
Selected port: COM82
Selected model: SM-G955U
Operation: Unlock
Searching for a phone. Please wait...
Detected phone model: SM-G955U
Firmware compiled date: Mon Aug 27 19:31:13 KST 2018
PDA version: FA70_G955USQU5ARH8
CSC version: unknown
SW version: G955USQU5CRF1
Phone SN: R28J426J3QW
Android version: 7.0 (NRD90M)
Sales code: unknown
Country: unknown
HW platform: msm8998
HW Chip: MSM8998
HW Modem: MSM8998
Security patch level: 2017-02-01
Warranty Void: 0
SIM 1 status: ready
Codename: dream2qltesq
Connecting to modem port...
Found phone on COM83
Reading IMEI...OK
-----------------------------------------------------------------------------------
Connecting to server...OK
Checking smart card...OK
Username: io7rjd3
Authorizing...OK
Checking balance...OK
Checking operation...OK
Your balance: 100 credits.
-----------------------------------------------------------------------------------
Sending device information...OK
Initializing exploit...OK
Checking lock status...Locked
Unlocking phone...
Please update phone's firmware and try again!
Phone unlocking failed
Performed by 2.7.5.3 Software version.
-----------------------------------------------------------------------------------


What does this yellow bold means? Thak you
 
Old Yesterday, 05:29   #11 (permalink)
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This is not correct, You should't write full Combination firmware! You need to write only modem part from Combination firmware.

Please now perform the following steps:

1. Write full regular (normal, not Combination) firmware.
2. Write Combination Modem firmware (only modem). Try to write "COMBINATION_modem_FA70_G955USQU5ARH8.tar" from the Support Area.
3. Insert non-Sprint SIM card ("Invalid SIM" should be on phone's screen), this is important!
4. Perform the "Unlock" operation.
5. Post here full Software log with all of performed operations and write the result.
 
Old Yesterday, 12:42   #12 (permalink)
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Thank you. I solved the problem

But in the software, when you select G955U and pres HELP, you get this

5. Sprint Unlock
Insert non-Sprint SIM card ("Invalid SIM" should be on phone's screen), this is important!
Download and write proper binary Combination modem firmware from the Support Area ("SAMSUNG/COMBINATION" folder).
Write modem from proper combination firmware
Connect powered-on phone to PC via cable.
Install necessary driver.
Click "Unlock" button.
Follow software instructions (prompts).


It says to write combination firmware. A little bit confusing but I solved the problem. Thx again


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