GCpro G920R4 FRP unlock fail - GSM-Forum

USflash · 09-05-2016, 16:53

Hello
Cant unllock S6 US Cellular on 6.0.1

Device Found..
MODEL=SM-G920R4;UN=1215FC484E4D2003;CAPA=32;VENDOR=SAMSUNG; FWVER=0200;PRODUCT=KLUBG4G1BD-E0B1;PROV=FAIL;
Init ok..
Fail-flash..
Possible New BootLoader Try Downgrade and retry...
Finish...

!!! Fail !!!!
Restart Phone if not auto...
Total Time Take...00:00:13
Log Saved

Trying to downgrade firmware or flash sboot and get FAIL in Odin

SW REV CHECK FAIL DEVICE 3 BINARY 1

Please help

stanner_austin · 09-05-2016, 17:31

@USflash
Hello
Boot in recovery and post here full firmware version.

USflash · 09-05-2016, 18:49

Mmb29k.g920r4tyu3cpb4

USflash · 09-06-2016, 02:35

G920R4TYU3CPF5 same problem

cwcast · 09-06-2016, 03:23

you have to downgrade to 5.1.1 to remove frp.

USflash · 09-06-2016, 03:56

Quote:

Originally Posted by cwcast

you have to downgrade to 5.1.1 to remove frp.

Odin giving FAIL when i trying to flash 5.1.1

<ID:0/017> Odin engine v(ID:3.1203)..
<ID:0/017> File analysis..
<ID:0/017> SetupConnection..
<ID:0/017> Initialzation..
<ID:0/017> Get PIT for mapping..
<ID:0/017> Firmware update start..
<ID:0/017> SingleDownload.
<ID:0/017> sboot. bin
<ID:0/017> FAIL!

USflash · 09-06-2016, 07:07

Please any solution to downgrade

myphoneisdead · 09-06-2016, 08:15

Just downgrade the sboot to OJ3. If you have no clue what I am talking about just flash entire G920R4TYU3BOJ3 rom. The reason its failing in odin is you are trying to flash a 5.1.1 to old that has a lower rollback protection bit then the one on the current rom.

If you just downgrade the sboot to OJ3 after you reset FRP you need to flash pb4 or pf5 sboot to phone otherwise phone will stick on logo screen. Because oj3 sboot is for 5.1.1 and pb4 rom is 6.0.1

USflash · 09-06-2016, 21:47

Quote:

Originally Posted by myphoneisdead

Just downgrade the sboot to OJ3. If you have no clue what I am talking about just flash entire G920R4TYU3BOJ3 rom. The reason its failing in odin is you are trying to flash a 5.1.1 to old that has a lower rollback protection bit then the one on the current rom.

If you just downgrade the sboot to OJ3 after you reset FRP you need to flash pb4 or pf5 sboot to phone otherwise phone will stick on logo screen. Because oj3 sboot is for 5.1.1 and pb4 rom is 6.0.1

It works!!!
Thank you

Searching phone...
Device Found..
MODEL=SM-G920R4;UN=1215FC4A58422F04;CAPA=32;VENDOR=SAMSUNG; FWVER=0200;PRODUCT=KLUBG4G1BD-E0B1;PROV=PASS;
Init ok..
FRP Removed.

!!! Success !!!!

abdulhaq_majroh · 12-01-2017, 05:08

Using Version...1.0.0.0051
Selected Port ssudmdm0000 = COM9
Selected Model GT-I5500
Selected Task SAMSUNG FRP Remove

Searching phone...
Device Found..
MODEL=SM-G920R4;UN=0715F752D490053A;CAPA=32;VENDOR=SAMSUNG; FWVER=0200;PRODUCT=KLUBG4G1BD-E0B1;PROV=PASS;
Init ok..
FRP Removed.

!!! Success !!!!
Restart Phone if not auto...
Total Time Take...00:00:15
Log Saved

09-05-2016, 16:53	#1 (permalink)
USflash Insane Poster Join Date: Aug 2016 Posts: 82 Member: 2611417 Status: Offline Thanks Meter: 9	GCpro G920R4 FRP unlock fail Hello Cant unllock S6 US Cellular on 6.0.1 Device Found.. MODEL=SM-G920R4;UN=1215FC484E4D2003;CAPA=32;VENDOR=SAMSUNG; FWVER=0200;PRODUCT=KLUBG4G1BD-E0B1;PROV=FAIL; Init ok.. Fail-flash.. Possible New BootLoader Try Downgrade and retry... Finish... !!! Fail !!!! Restart Phone if not auto... Total Time Take...00:00:13 Log Saved Trying to downgrade firmware or flash sboot and get FAIL in Odin SW REV CHECK FAIL DEVICE 3 BINARY 1 Please help

12-01-2017, 05:08	#10 (permalink)
abdulhaq_majroh No Life Poster Join Date: Jun 2011 Location: Kabul City Afghanistan Age: 38 Posts: 746 Member: 1600947 Status: Offline Sonork: 100.1627298 Thanks Meter: 772	sm-g920r4 frp removed done Using Version...1.0.0.0051 Selected Port ssudmdm0000 = COM9 Selected Model GT-I5500 Selected Task SAMSUNG FRP Remove Searching phone... Device Found.. MODEL=SM-G920R4;UN=0715F752D490053A;CAPA=32;VENDOR=SAMSUNG; FWVER=0200;PRODUCT=KLUBG4G1BD-E0B1;PROV=PASS; Init ok.. FRP Removed. !!! Success !!!! Restart Phone if not auto... Total Time Take...00:00:15 Log Saved

09-05-2016, 17:31	#2 (permalink)
stanner_austin No Life Poster Join Date: Jan 2004 Location: Unknown Age: 39 Posts: 9,227 Member: 49752 Status: Offline Sonork: QQ:1474246528 Thanks Meter: 6,085	@USflash Hello Boot in recovery and post here full firmware version.

09-05-2016, 18:49	#3 (permalink)
USflash Insane Poster Join Date: Aug 2016 Posts: 82 Member: 2611417 Status: Offline Thanks Meter: 9	Mmb29k.g920r4tyu3cpb4

09-06-2016, 02:35	#4 (permalink)
USflash Insane Poster Join Date: Aug 2016 Posts: 82 Member: 2611417 Status: Offline Thanks Meter: 9	G920R4TYU3CPF5 same problem

09-06-2016, 03:23	#5 (permalink)
cwcast No Life Poster Join Date: May 2009 Location: USA/NY Posts: 1,095 Member: 1025079 Status: Offline Thanks Meter: 311	you have to downgrade to 5.1.1 to remove frp.

09-06-2016, 07:07	#7 (permalink)
USflash Insane Poster Join Date: Aug 2016 Posts: 82 Member: 2611417 Status: Offline Thanks Meter: 9	Please any solution to downgrade

09-06-2016, 08:15	#8 (permalink)
myphoneisdead Junior Member Join Date: Aug 2016 Posts: 6 Member: 2618195 Status: Offline Thanks Meter: 6	Just downgrade the sboot to OJ3. If you have no clue what I am talking about just flash entire G920R4TYU3BOJ3 rom. The reason its failing in odin is you are trying to flash a 5.1.1 to old that has a lower rollback protection bit then the one on the current rom. If you just downgrade the sboot to OJ3 after you reset FRP you need to flash pb4 or pf5 sboot to phone otherwise phone will stick on logo screen. Because oj3 sboot is for 5.1.1 and pb4 rom is 6.0.1