SM-J730F unlock problem [Solved] - GSM-Forum

trt · 02-02-2018, 18:15

second revision firmware j730fxxu2ara3

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Quote:

Platform: Samsung Android
Selected port: COM1
Selected model: SM-J730F
Detected phone model: SM-J730F
Firmware compiled date: Tue Jan 16 18:03:57 KST 2018
PDA version: J730FXXU2ARA3
CSC version: J730FOXA2ARA3
SW version: J730FXXU2ARA3
Phone SN: R58JB0Q76VY
Android version: 7.0 (NRD90M)
Sales code: PHE
Country: SPAIN
HW platform: exynos5
HW Chip: exynos7870
HW Modem: SHANNON315
Security patch level: 2018-01-01
SIM 1 status: not ready
SIM 2 status: not ready
Codename: j7y17ltexx
Checking Root:
Phone is Rooted.
Reading security backup, please wait...
Backup saved as C:\Program Files\Octoplus\Octoplus_Samsung
\BACKUP\Security-SM-J730F-R58JB0Q76VY-02-02-2018_19-02-
12-.asec file
Initializing exploit...
Phone will restart now. Please don't disconnect cable!
Searching for a phone. Please wait...
Phone found.
Executing exploit...
Phone unlocking failed
Performed by 2.6.4 Software version.

Octopus box · 02-03-2018, 10:18

Hello.

In the latest firmware versions Samsung close security hole and You can't perform Direct Unlock or Write Cert on new version of firmwares. You can try to downgrade phone's firmware (write older, by release date, version of firmware) but on your own risk, after repeat Unlock or Write Cert operations.

trt · 02-03-2018, 10:20

Downgrade not posible

Octopus box · 02-03-2018, 10:44

Then, if KNOX is not damaged in your device, You can do "Read Codes" operation via server (need 58 credits).

rajbonshi20 · 02-12-2018, 15:03

SM-J730F unknoun baseband during unlock, how can i repair baseband pls help me

Octopus box · 02-12-2018, 15:16

You should re-flash the device with different firmwares and check, whether modem is correct (not Unknown).
If after of writing all firmwares, which You have, phone's baseband is still null or unknown (SW version is Unknown) - most likely, this is HW problem (problem with eMMC flash chip).

froyd777 · 02-14-2018, 13:46

Quote:

Originally Posted by rajbonshi20

SM-J730F unknoun baseband during unlock, how can i repair baseband pls help me

same hare
problem solved
just reflesh original modem thats all

saramoodi1 · 02-22-2018, 01:21

Dear all i had downgrade the security patch from 01-01-2018 to 01-07-2017 but help me please while unlocking its saying try to downgrade modem i flash with downgrade modem/cp file and after that its not showing imei but when upgrade or flash with cp file its showing imei now what to do help me team thanks in advance

Octopus box · 02-22-2018, 06:20

If after writing firmware or modem file phone's IMEI disappears, this means, that modem firmware is not compatible for your device revision. In this case You should try to write other firmwares.

02-03-2018, 10:18	#2 (permalink)
Octopus box Product Supporter Join Date: Oct 2009 Location: Romania, Bucharest Posts: 99,848 Member: 1146942 Status: Offline Sonork: 100.1587278 Thanks Meter: 27,413	Hello. In the latest firmware versions Samsung close security hole and You can't perform Direct Unlock or Write Cert on new version of firmwares. You can try to downgrade phone's firmware (write older, by release date, version of firmware) but on your own risk, after repeat Unlock or Write Cert operations.

02-03-2018, 10:20	#3 (permalink)
trt No Life Poster Join Date: Nov 2005 Location: 46000 Posts: 543 Member: 197566 Status: Offline Thanks Meter: 89	Downgrade not posible

02-03-2018, 10:44	#4 (permalink)
Octopus box Product Supporter Join Date: Oct 2009 Location: Romania, Bucharest Posts: 99,848 Member: 1146942 Status: Offline Sonork: 100.1587278 Thanks Meter: 27,413	Then, if KNOX is not damaged in your device, You can do "Read Codes" operation via server (need 58 credits).

02-12-2018, 15:03	#5 (permalink)
rajbonshi20 Freak Poster Join Date: Feb 2013 Location: dhaka Posts: 173 Member: 1890442 Status: Offline Sonork: 100.1621735 Thanks Meter: 39	SM-J730F unknoun baseband during unlock, how can i repair baseband pls help me

02-12-2018, 15:16	#6 (permalink)
Octopus box Product Supporter Join Date: Oct 2009 Location: Romania, Bucharest Posts: 99,848 Member: 1146942 Status: Offline Sonork: 100.1587278 Thanks Meter: 27,413	You should re-flash the device with different firmwares and check, whether modem is correct (not Unknown). If after of writing all firmwares, which You have, phone's baseband is still null or unknown (SW version is Unknown) - most likely, this is HW problem (problem with eMMC flash chip).

02-22-2018, 01:21	#8 (permalink)
saramoodi1 Junior Member Join Date: Jan 2013 Posts: 5 Member: 1866320 Status: Offline Sonork: amoodie1 Thanks Meter: 0	Dear all i had downgrade the security patch from 01-01-2018 to 01-07-2017 but help me please while unlocking its saying try to downgrade modem i flash with downgrade modem/cp file and after that its not showing imei but when upgrade or flash with cp file its showing imei now what to do help me team thanks in advance

02-22-2018, 06:20	#9 (permalink)
Octopus box Product Supporter Join Date: Oct 2009 Location: Romania, Bucharest Posts: 99,848 Member: 1146942 Status: Offline Sonork: 100.1587278 Thanks Meter: 27,413	If after writing firmware or modem file phone's IMEI disappears, this means, that modem firmware is not compatible for your device revision. In this case You should try to write other firmwares.