strange case with s8 g950f help

I was working for several days this model, until I managed to root it, repair the imei and partchar but the first attempt was partcheo error and the second perfect, delivered the phone yesterday and just brought me with imei status NG

Chimera Mobile Phone Utility version: 20.24.1610 @ 2019-02-16
Printing phone history

Repair IMEI
16/02/2019
22:13:50

Repair IMEI
16/02/2019
22:09:48

Repair IMEI
16/02/2019
21:41:13

Repair started
Gathering phone info...
Collecting information. Be patient! Do NOT disconnect the phone!
Model: SM-G950F
Sales Code: CHO
Country Code: Chile
Timezone: America/Santiago
Android Version: 8.0.0 [R16NW] [SDK 26]
Build Date: Tue Dec 4 12:10:44 KST 2018
PDA Version: G950FXXU4CRL3 [december 2018, rev3]
Phone Version: G950FXXS4CRI6 [september 2018, rev6]
CSC Version: G950FOXM4CRL1 [december 2018, rev1]
Product Code: CHO
HIDSw Version: G950FXXU4CRL3/G950FOXM4CRL1/G950FXXS4CRI6/G950FXXU4CRL3
Board Platform: EXYNOS5
Modem Platform: SHANNON355
Serial Number: RF8JB2KCDJL
Imei: 8697XXXXX
Unique Number: CE081718E039613F05
Connections: AT,MTP
Battery Status: 3.85V (47%)
Network Type: GSM
SIM Status: READY
Multisim Config: SS
Knox Version: v30
Warranty Bit: 0
Security Patch: 2018-12-01
Data Encryption State: unencrypted
Repair imei...
Checking modem version.
Restarting phone.
Waiting for ADB connection. Be patient! Do NOT disconnect the phone!
Reading data. Be patient! Do NOT disconnect the phone!
Repaired IMEI: 351858080XXX
If necessary, use the patch cert procedure.
Succeeded.
Successfully finished.
Finished at local time: [02.16.19 20:00:56]
WorkID: 52778527



Chimera Mobile Phone Utility version: 20.24.1610 @ 2019-02-18
Printing phone history

Patch Certificate
16/02/2019
21:59:45

Repair IMEI
16/02/2019
21:56:00

Patch Certificate
16/02/2019
21:43:31

Patch certificate started
Gathering phone info...
Collecting information. Be patient! Do NOT disconnect the phone!
Model: SM-G950F
Sales Code: CHO
Country Code: Chile
Timezone: America/Santiago
Android Version: 8.0.0 [R16NW] [SDK 26]
Build Date: Tue Dec 4 12:10:44 KST 2018
PDA Version: G950FXXU4CRL3 [december 2018, rev3]
Phone Version: G950FXXS4CRI6 [september 2018, rev6]
CSC Version: G950FOXM4CRL1 [december 2018, rev1]
Board Platform: EXYNOS5
Modem Platform: SHANNON355
Serial Number: RF8JB2KCDJL
Imei: 351858XXXX
Battery Status: 3.79V (40%)
Network Type: GSM
SIM Status: READY
Multisim Config: SS
Knox Version: v30
Warranty Bit: 0
Security Patch: 2018-12-01
Data Encryption State: unencrypted
Preparing...
Checking current patchcert.
Restarting phone.
Waiting for ADB connection. Be patient! Do NOT disconnect the phone!
Previous patchcert successfully removed.
Checking modem.
Checking root.
Checking boot image. Be patient! Do NOT disconnect the phone!
Reading data...
Checking modem version.
Restarting phone.
Waiting for ADB connection. Be patient! Do NOT disconnect the phone!
Reading data. Be patient! Do NOT disconnect the phone!
Patching certificate...
Communicating with the server. Be patient! Do NOT disconnect the phone!
After the process, the phone can restart once during startup.
Within 20-70 seconds after the phone starts, the signal strength indicator will toggle: signal -> no signal -> signal.
You can check the status of the imei using: *#0011#
The patchcert can be removed by repeating the process.
If a new firmware is used, the patchcert process must be repeated.
Succeeded.
Successfully finished.
Finished at local time: [02.18.19 12:14:43]
WorkID: 52871076




Has it happened to anyone else this? sorry for my English