Hello readers! In this article, I'll tackle one of the issues that Galaxy S3 users reported to us about the authentication error that occur in their device without apparent reason. Mostly, this type of problem is just a minor issue and it could be fixed without bringing your device to the shop. So, to isolate the problem all you need to do is to perform some troubleshooting steps until you can determine the possibility and get rid the issue. That being said, here are steps that we suggest you to do:
Although performing this procedure doesn't have an assurance that the issue will be resolved but there were reports saying that after doing it the problem is not anymore happening. To do so, here's how:
- Dial *#0011#
- When Service Mode screen appears, press the left menu button.
- Choose WiFi.
- Now, tap WiFi Power Save Mode to turn it OFF.
- Now, exit from the Menu and switch OFF WiFi. If your router details are saved it will connect automatically, and forget or delete the network information.
- Enter your all the required information and connect it again.
But if the error still happening after the method, proceed to the next method.
Second Solution: Boot your phone in Safe Mode
The purpose of booting in this environment is to eliminate the suspicion that a culprit is causing that your phone is unable to connect to your wireless network. It will disable all third-party apps while the pre-installed remain running in the system. So, if there's a culprit is causing it, then your phone will connect immediately while in this mode. This is how to boot in Safe Mode:
- Turn off the device.
- Press and hold the Power key.
- When 'Samsung Galaxy S III appears, release the Power key and immediately press and hold the Volume Down key.
- Continue to press and hold the Volume Down key until the device finishes restarting.
- 'Safe mode' will display in the bottom left corner of the screen. Release the Volume Down key when you see 'Safe mode.'
If the devices successfully connects after the method, then find the app triggered the problem by uninstalling it started from the recent one you have installed. However, while in this mode but the issue still persists, then, your phone might have a serious firmware issue. Move over to the next step:
Third Solution: Master Reset
Since, all procedures failed to resolve the issue the last option that you can do is to reset your device. In doing this step, you need to spend time creating a backup because all your files and data will be wiped out once you begin the step. But the good thing is, if your phone is having a firmware issue, then this method has a big chance to fix it.
- Turn off the device.
- Press and hold the Volume Up, Home and Power keys at the same time.
- When the phone vibrates, release the Power key but continue to press and hold the Volume Up and Home keys.
- When the Android System Recovery screen appears, release the Volume Up and Home keys.
- Press the Volume Down key to highlight 'wipe data/ factory reset.'
- Press the Power key to select it.
- Press the Volume Down key to highlight 'delete all user data.'
- Press the Power key to start the reset. When the master reset is complete 'Reboot system now' is highlighted.
- Press the Power key to restart the device.
I hope this helps.