Fold 3 WiFi not working after 6.1.1 update

[Kurt7]

So it is 21st October, I last updated my fold 3 on 8th October. Since that time my WiFi (phone function not my router) has been very temperament but today it just does not work. 

I try to enable it from quick menu by tapping the WiFi icon which goes grey as if it is working on enabling WiFi but in never actually enables it. If I swipe the quick menu away and return to it, WiFi is off. If I go to settings manually and attempt to enable WiFi I get "Turning WiFi on..." but again WiFi does not enable.

I have tried:

Restarting

Powering off completely for an hour

Resetting WiFi and Bluetooth settings

My final resort was to attempt a factory reset but apparently I also need WiFi for that.

Short of flashing with Odin, I'm out of options. 

Any suggestions?

[Fiona26]

Try a reboot first. Hold down the Side key and the volume down button simultaneously until the screen goes black. See if the wifi will turn on once your phone has restarted.

[BandOfBrothers]

@Kurt7 it's worth trying > Clear Cache Files from the phone's System Partition Section  > https://www.samsung.com/uk/support/mobile-devices/how-do-i-clear-the-cache-on-my-device/ You may need to insert your earphones or hook upto a powered On Laptop or use a Tv's USB Port to access the Clear Partition Section. This may help with lag or stutters as this clears the phone of old/unused or broken cache files.There is also a Repair Apps option in the Menu System too { Possibly excluding the s²⁴ Series of phone's } 

[Kurt7]

Still nothing, thank you for the suggestion.

[Kurt7]

Getting PDP Backup Fail Setup Wizard Finished error and don't have a C to C at hand right now, will give it a try tomorrow, thank you.

[Kurt7]

This seems to have worked thank you!

For anybody experiencing the same issue, power off the faulty device. Connect the device to either another device using C to C cable (the other device for me was a fold 6, powered on and unlocked, though I'm not sure if it matters) then on the faulty device hold side button and up, the phone will power on there will be a short vibrate, keep the buttons pushed down and there will be a longer vibrate, release after the longer vibrate and the menu will appear, use the up/down buttons to select Wipe Partition Section, use the side button to select this option, once comple select the reboot option and it should be fixed when the device finishes booting.

[Tristan8]

I’ve had the same issue on my Z Fold5! It seems to have gone away now, but I’m also having issues with Bluetooth! First it was only 3rd party devices, but after following a trouble shooting method which told me to format Bluetooth and Wi-Fi setting, now none of my Bluetooth devices will connect! When my phone finds them it just connects for a second then says “device disconnected”!

[rc100]

Finally I'm back on Wi-Fi !!  This worked for me.

1. Settings app. .
2. General management. Reset. Reset Wi-Fi and Bluetooth settings.
3. Review the info then tap. Reset settings. . If presented, enter the current PIN, password or pattern.
4. To confirm, review the info then tap. Reset. .
5. Held down power button. Restart
6. Wi-Fi enabled.
   *log back into my network and pair all of my Bluetooth devices

[rc100]

 FORGET IT! 😠  The fix was short lived.

After reset Wi-Fi and Bluetooth my Wi-Fi was back on for 20minutes until I unfolded/opened up the screen and the device went into immediate re-start and Wi-Fi disabled again!

[Kurt7]

I eventually figured it out, not a nice fix though. There are 2 flex cables responsible for wifi/bluetooth that cross over the hinge of the device. They wear out quickly and stop working. Really not something youbcan fix yourself, take it to a repair shop or go through Samsung