Need Help!

have you wiped cache partition?

if last usage of wifi or bluetooth was 6 months ago tell tale signs hardware failure and requires to bring it in to nearest authorized samsung service center

A grayed-out Wifi and Bluetooth switch usually means there's something wrong with your phone's modems. Since your phone is already updated, I suggest having it fixed as soon as possible. The Samsung Engineers and Technicians are skilled enough to provide offers and technical solutions to the issue with your device. I suggest you call the hotline #GALAXY to voice out your concerns, then have your phone checked and repaired at the nearest Service Center near you.

https://www.samsung.com/ph/support/service-center/

Thank you, kessieJ, for letting us know your Samsung Galaxy device having Bluetooth, Wi-Fi, &  Calculator apps not functioning issues.

Understand your situation right now, expecting your device to work normal as you have expected. 

But, don't worry, we are here to help, provide quick fixes, and offer solutions to your device problems.

Both, we will figure out what's behind the issue/s and other possible reasons and come up with the solutions by following below steps.

A) First, ensure that your device is up-to-date with the latest Software updates.

Settings > About Phone > Software Updates > Download and Install > Follow On-screen notifications.

Also, check Samsung Members app notification bell icon for any new information and announcement.

B) Check the network connection.

Check to see if your internet connection signal is strong. If your network coverage is poor, you might experience the mobile connectivity not working properly. Please reconnect to the Wi-Fi and/or Router with strong network coverage to fix this.

And/or contact your Mobile Network Service provider in order to find out the signal in your coverage area.

C) Turn Off and On Wi-Fi.

If you've turned on your phone Wi-Fi for a while, it might go into battery-saving mode. In this case, restarting your phone connection might be helpful. To turn it off and back on, simply swipe down the quick-setting panel and tap the, "Wi-Fi" & "Location" shortcut.

D) Turn On and turn Off Airplane mode.

All active connections are simply cut off when airplane mode is turned on, and they are restored when airplane mode is turned off.  To disable airplane mode, please pull down the quick-setting panel and tap "Airplane mode," wait a few seconds, and then tap it again.

E) Disable Power Saver.

When turned on or used, Wi-Fi can drain a lot of battery power. Please plug in your charger and allow the device to charge for a while if your battery is too low.

F) Enable Google Location Accuracy.

Google estimates your location data using Wi-Fi, Bluetooth, Mobile Data, and GPS to improve accuracy on your mobile device. If your location doesn't work, turning on Google Location Accuracy might help.

• Simply draw down the quick-setting panel.
• Tap and hold on the 'Location' shortcut to go straight to the location settings.
• Tap "Google Location Accuracy" and then toggle on the service.

G) Enter Safe Mode.

• Long-press the power button to launch the power menu.
• Now long-press on the 'Power off' menu until a window appears.
• Tap 'Yes' on the screen to reboot into Safe Mode.

H) Clear the Cache.

Step 1. Turn off your phone.
Step 2. Plug in the USB cable via PC or Type-C earphones (in case its USB-C to USB-C).
Step 3. Then press and hold Power and Volume up buttons.
Step 4. Release the power button. When the recovery screen shows up, release the volume up button.
Step 5. Navigate to and select Wipe cache partition (Volume up and down is for highlighting options and power is to select).
Step 6. Navigate to and select Yes.
Step 7. Press the power button to select Reboot system now.

I) Report error through Samsung Members app.

Step 1. Long press Samsung Members icon on Apps screen and Tap Error reports.

Step 2.Tap OK on agreement popup for sending system log data.

Step 3. Select Symptom category. Tap Networking/Connectivity & Display.

Step 4. Describe problem in detail and SEND.

https://www.samsung.com/ph/support/mobile-devices/how-to-submit-an-error-on-samsung-members/#:~:text.... 

J) Reset the Calculator Apps.

Step 1. Navigate to Settings.

Step 2. Go to Apps.

Step 3. Click 3 dot.

Step 4. Show System apps.

Step 5. Go to Calculator.

Step 6. Open Storage.

Step 7. Clear Cache and Clear Data.

Step 8. Restart your device.

K) Running the Diagnostic Tools under Samsung Members app.

Step 1. Run Samsung Members and select Get help on the lower half of the screen.

Step 2. Tap View Tests located under Diagnostics.

Step 3. Diagnostics checks, Individually Tap the following.

     "Wi-Fi", Bluetooth, Touch Screen"

Step 4. Your Samsung Galaxy phone will then run through the checks.

Step 5. Follow the on-screen instructions to complete the check.

Step 6. You can view your results after each check is complete.

L) For more assistance, you may contact us on our online Samsung support channels below.

https://samsung-livechat.sprinklr.com/seao/ph/index.html