Problem With A750G Airplane Mode On/Off each 10 seg

Facts
Model: Samsung A750G
Software: A750GUBU2BSC7


Root Process:
(https://chimeratool.com/en/docs/gala...-sm-a750f-root)

• Make a KnoxGuard Unlock with ChimeraTool
• Flash "Twrp_3.2.3-1_a750_251218.tar" with ChimeraTool. make sure the "Skip Auto Reboot" option is selected!
• Restart your phone in recovery mode: press and hold volume_down + power, when the display darkens immediately press and hold volume_up (do not release power)
• Twrp: wipe: Format Data (type yes)
• Twrp: install: no-verity-opt-encrypt-6.0.zip
• Twrp: install: RMM-State_Bypass_Mesa_v2.zip
• Twrp: install: Magisk-v18.1.zip
• Twrp: wipe: Advanced Wipe: wipe data, cache and dalvik/art cache
• Twrp: reboot: system
• Install MagiskManager (adb install -r MagiskManager-v7.0.0.apk)
• MagiskManager: Settings/Superuser: Automatic response: grant

IMEI Repair: WorkID: 61772509



Checking modem version.
Reading data. Be patient! Do NOT disconnect the phone!
Repaired IMEI: 359997092349111
If necessary, use the patch cert procedure.
Succeeded.
Successfully finished.
Finished at local time: [06.03.19 22:23:06]



Patch Certificate its the Problem


Reading data...
Checking modem version.
Reading data. Be patient! Do NOT disconnect the phone!
Device disconnected. Try again!
Finished at local time: [06.03.19 22:27:03]
WorkID: 61772564



(Phone Restart Suddenly)


Reading data...
Checking modem version.
Restarting phone.
Waiting for ADB connection. Be patient! Do NOT disconnect the phone!
Failed. Trying again.
Restarting phone.
Waiting for ADB connection. Be patient! Do NOT disconnect the phone!
Failed. Trying again.
Reading data. Be patient! Do NOT disconnect the phone!
Device disconnected. Try again!
Finished at local time: [06.03.19 22:55:02]
WorkID: 61773032



(Phone Restart Suddenly)


Reading data...
Checking modem version.
Reading data. Be patient! Do NOT disconnect the phone!
Device disconnected. Try again!
Finished at local time: [06.03.19 22:29:25]
WorkID: 61772600



(Phone Restart Suddenly)


Reading data...
Checking modem version.
Reading data. Be patient! Do NOT disconnect the phone!
Device disconnected. Try again!
Finished at local time: [06.03.19 22:27:03]
WorkID: 61772564



(Phone Restart Suddenly)


The only time that works



Patching certificate...
After the phone starts, it switches to flying mode and then returns to normal mode after 20-70 seconds.
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: [06.03.19 22:33:36]
WorkID: 61772677



Airplane mode are on/off each 10 seconds....


How to Fix That :/



Thanks!