Success J727P imei repair, cert patch and unlock.

[Atek8404]

J737P U7 comes to me without service from another workshop. I check * # 0011 # and find the CERT: NG. But it did have imei which did not match the one on the back cover. The colleague tells me it was working fine but they flashed it and it was out of service. A colleague explains to me that this may be because the UICC method changes the imei. I start to ask several colleagues here on telegram and tells me that Z3X released a beta update that supports a stack of models, I check and see that it actually had the J737P supported for imei and Patch. I proceed to root with Magisk patching the AP and I flash it and it starts up fine. I do the repair and patching process and when DISASTER starts, it stays in the logo and some red letters saying not to manage unofficial binaries. I enter download mode and I see that KG: prenormal and warranty void 1. I flash the official one, activate OEM and connect it, KG goes from prenormal to checking and bootloader already unlocked. I put the AP back in with Magisk and it starts well and I connect it to the wifi and update Magisk. I go back to repair and patch and imei Status goes from NG to PASS, but without service. I'm going to unlock UICC and it said Device locked to Sprint SIM Card. I proceed to unlock with Z3X and it gave me server error. I restart the PC and I remove the SIM and I try again and it does the unlocking process correctly and the mobile is taking full signal.

Operation: Repair
Selected model: SM-J737P
Software version: 43.21

Waiting ADB device... OK
Reading phone info...
Model: SM-J737P
Android version: 9
PDA version: J737PVPU7BTE1
CSC version: J737PSPT7BTE1
Phone version: J737PVPU7BTE1
Product code:
CSC country code: USA
CSC sales code: BST
Phone SN: R58K91BAH9T
IMEI: 3511567xxxxxxx
HW version: J737P.04
RF cal date: 20180908
Chip name: EXYNOS7884
Modem board: SHANNON327
Security patch: 2020-06-01
Boot Warranty bit: 1
SIM State: ABSENT
Checking Super user right... true
Root version: 23.0:MAGISKSU
Checking data... OK
Searching server... OK
Checking server answer... OK
Data preparation... OK
Initialization zTool... OK
Running zTool, please wait... OK
Executing 1st step... OK
Executing 2nd step... OK
Searching server... OK
Waiting for server answer... OK
Reparing... OK
Rebooting phone... OK


Operation: Patch Certificate
Selected model: SM-J737P
Software version: 43.21

Waiting ADB device... OK
Reading phone info...
Model: SM-J737P
Android version: 9
PDA version: J737PVPU7BTE1
CSC version: J737PSPT7BTE1
Phone version: J737PVPU7BTE1
Product code:
CSC country code: USA
CSC sales code: BST
Phone SN: R58K91BAH9T
IMEI: 35115677xxxxxxx
HW version: J737P.04
RF cal date: 20180908
Chip name: EXYNOS7884
Modem board: SHANNON327
Security patch: 2020-06-01
Boot Warranty bit: 1
SIM State: ABSENT
Checking Super user right... true
Root version: 23.0:MAGISKSU
Checking data... OK
Searching server... OK
Checking server answer... OK
Data preparation... OK
Searching server... OK
Waiting for server answer... OK
Patching... OK
Rebooting phone... OK

Checking Login and Password... OK
Balance: 17 crd.
You have 17 credit(s) left. This operation takes 10 credits. Continue? Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-J737P
Android version: 9
PDA version: J737PVPU7BTE1
CSC version: J737PSPT7BTE1
Phone version: J737PVPU7BTE1
Product code:
CSC country code: USA
CSC sales code: BST
Phone SN: R58K91BAH9T
IMEI: 354255094xxxxxxx
HW version: J737P.04
RF cal date: 20180908
Chip name: EXYNOS7884
Modem board: SHANNON327
Security patch: 2020-06-01
Boot Warranty bit: 1
SIM State: ABSENT
Waiting for device to become ready... OK
Reading IMEI... OK
Initialization zTool... OK
Running zTool, please wait... OK
Checking network lock status... LOCKED
Reading data from phone... OK
Searching server... OK
Waiting for server answer... OK
Writing data to phone... OK
Checking network lock status... UNLOCKED
Rebooting phone... OK