Samsung G920A G890A - Need Downgrade Modem!

[stinky180]

I need help unlocking these two models. Here is the software log

Searching Samsung modem... detected COM37
Reading phone info... Ok
Model: SM-G920A
AP version: G920AUCS5DPJ1
CSC version: G920AATT5DPJ1
CP version: G920AUCS5DPJ1
Product code: SM2G920AZDAATT
Phone SN: R38G707xxxx
Unique number: 06157DF6435C3508
Reading IMEI... Ok
IMEI: xxx (SIGN: OK)
Reading data from phone... error (0)
Try downgrade modem if possible

Done with Samsung Tool PRO v.27.5

Searching Samsung modem... detected COM3907
Reading phone info... Ok
Model: SM-G890A
AP version: G890AUCU5CPI2
CSC version: G890AATT5CPI2
CP version: G890AUCU5CPI2
Product code: SM2G890AZAAATT
Phone SN: R38H20Txxxx
Unique number: 1115FBE0290F2202
Reading IMEI... Ok
IMEI: xxx (SIGN: OK)
Reading data from phone... error (0)
Try downgrade modem if possible

Done with Samsung Tool PRO v.27.5

Can someone please help me getting these phones unlocked?

[thanhman18]

step 1 : extract combination 6.0.1 file & copy sboot file
step 2 : rebuild rom 5.1.1 with sboot combination file
step 3 : flash rom
step 4 : unlock
step 5: money in the bank

[CHANDARAKK]

Originally Posted by thanhman18

step 1 : extract combination 6.0.1 file & copy sboot file
step 2 : rebuild rom 5.1.1 with sboot combination file
step 3 : flash rom
step 4 : unlock
step 5: money in the bank

do u have test Sboot combin 6.0.1 to build with stock 5.1.1 ? can flash? no hang on ?

[thanhman18]

Originally Posted by CHANDARAKK

do u have test Sboot combin 6.0.1 to build with stock 5.1.1 ? can flash? no hang on ?

yes i tested it many times with G920A,G925A, G928A,N920A,G890A 6.0.1,replace sboot with same security level or higher
btw it will downgrade 5.1.1

[CHANDARAKK]

Originally Posted by thanhman18

yes i tested it many times with G920A,G925A, G928A,N920A,G890A 6.0.1,replace sboot with same security level or higher
btw it will downgrade 5.1.1

so we need to use stock 5.1.1+engsboot 6.0.1 the same phone right?

[GalaxyVibe]

Originally Posted by thanhman18

step 1 : extract combination 6.0.1 file & copy sboot file
step 2 : rebuild rom 5.1.1 with sboot combination file
step 3 : flash rom
step 4 : unlock
step 5: money in the bank

Woww! I can not wait to go home and try this solution bro. I was looking to get the solution for this a long time ago. I hope that this modem downgrade also works for IMEI repairs to bypass the last 4 binary security update.. does it?

[thanhman18]

Originally Posted by GalaxyVibe

Woww! I can not wait to go home and try this solution bro. I was looking to get the solution for this a long time ago. I hope that this modem downgrade also works for IMEI repairs to bypass the last 4 binary security update.. does it?

yes man & don't forget flash sboot combination with same or higher security level
for example :COMBINATION_ATT_FA50_G925AUCU5API1_ATT5API1_CL6309 376_QB10947615_REV02_user_mid_noship.tar.md5

[GalaxyVibe]

Originally Posted by thanhman18

yes man & don't forget flash sboot combination with same or higher security level
for example :COMBINATION_ATT_FA50_G925AUCU5API1_ATT5API1_CL6309 376_QB10947615_REV02_user_mid_noship.tar.md5

My phone's firmware is G920TUVU4EPF1. I flashed my phone with COMBINATION_TMB_FA50_G920TUVU4APE1_TMB4APE1_CL6309 376_QB9723137_REV02_user_mid_noship.tar* and it did not work.

[GalaxyVibe]

The COMBINATION_TMB_FA50_G920TUVU4APE1_TMB4APE1_CL6309 376_QB9723137_REV02_user_mid_noship.tar* combination files did not work. The flash did not go through.

[thanhman18]

Originally Posted by GalaxyVibe

The COMBINATION_TMB_FA50_G920TUVU4APE1_TMB4APE1_CL6309 376_QB9723137_REV02_user_mid_noship.tar* combination files did not work. The flash did not go through.

"G920A,G925A, G928A,N920A,G890A 6.0.1" G920T not in my list

[thanhman18]

Originally Posted by GalaxyVibe

The COMBINATION_TMB_FA50_G920TUVU4APE1_TMB4APE1_CL6309 376_QB9723137_REV02_user_mid_noship.tar* combination files did not work. The flash did not go through.

"G920A,G925A, G928A,N920A,G890A 6.0.1" G920T not in my list

[thanhman18]

Originally Posted by GalaxyVibe

The COMBINATION_TMB_FA50_G920TUVU4APE1_TMB4APE1_CL6309 376_QB9723137_REV02_user_mid_noship.tar* combination files did not work. The flash did not go through.

"G920A,G925A, G928A,N920A,G890A 6.0.1" G920T not in my list

[thanhman18]

"G920A,G925A, G928A,N920A,G890A 6.0.1" G920T not in my list

[thanhman18]

"G920A,G925A, G928A,N920A,G890A 6.0.1" G920T not in my list

[CHANDARAKK]

Originally Posted by GalaxyVibe

The COMBINATION_TMB_FA50_G920TUVU4APE1_TMB4APE1_CL6309 376_QB9723137_REV02_user_mid_noship.tar* combination files did not work. The flash did not go through.

he said on ATT mobile not Tmobile LOl