Question edited for a lot more clarity.
Question moved to maker model category.
Why did you change the PIN to a number your can't remember? It is supposed to be something you can't forget, not some random number. You should NEED to write it down. As you are posting as Anonymous, I suspect nefarious activities and more to this than meets the eye.
No there isn't, but you will be offered a back up before clearing. Your back up should be current to before you changed the PIN anyway.
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While the phone is attached to the charger, check the cell temperature. If it gets warm, the cell is activating its internal protection. Try this: when the cell loses power, take it out and put it in a freezer for a few minutes, then reconnect it to the phone. If the charge returns, the internal circuit is reacting to internal heat. Get a new cell.
Three different things, Anon...
Replacing your battery and SIM should make no difference, which is only really relevant if you used those ideas as a trial to test your fix-it stores. If they think either might make a difference, go somewhere else.
When The fix only works once, what fix was that, please?
If your phone was purchased in June of this year, why can you not invoke the warranty and demand a replacement?
When you're at home, you're connected to your own wifi for which you have entered the password into your phone at some point. If you're away from home, you would need to be either connected to an open wifi network (not password protected) or have the password to any wifi hotspots your phone sees. Go into your wifi settings and see what networks are available. You will see a signal strength indicator next to each wifi network name, and also an icon that indicates whether the network is secured or not. If you tap on any of the networks, the open ones should allow you to connect, and the secured ones will ask you for the password. Your phone can't automatically connect to any secured networks unless it has the password. For any networks that don't require a password, you may still need to tap that network in your wifi list so your phone knows you want to connect to it, and your phone will then connect to it automatically whenever you're nearby, unless you're already connected to a stronger wifi network. If you need further help, I’m available over the phone at https://www.6ya.com/expert/reginald_bec291de192ca44f
Hello
Sound problems: Check your settings to be sure they are all correct, i.e. volume, mute button. Listen to a music file and record something with sound to ensure that all other speakers in/out are working correctly. Locate the speakers and be sure that they are clean and not obstructed by a case or foil. Try the above again with headphones on. Also, check you battery power to be sure that it is fully charged. If you locate a speaker that does not work or you cannot replay a recorded video, then your phone may need to be serviced. Before you decide this though, ensure that you have a backup of your data and then restore it to factory settings. Then use your phone without the backup to see if it is functioning normal; have someone call you and retry anything else (video, music) that didn't work before, if it still doesn't work, then it will definitely need to be repaired.
Samsung Galaxy S 4G Smartphone: WiFi disconnects (have to restart phone to reconnect, does not scan for WiFi connections):
Hello. It could be that your "Auto Network Switch" setting is on..
What Auto Network Switch does: when the WiFi gets too low the phone automatically switches to cellular, and when cellular connection gets too low, the phone will switch to WiFi
All Samsung Galaxy's are not alike for it's menu settings.. but you can try:
for S4 and up:
Settings>hold down on WiFi settings for a second then let go > un-check box at top for "Smart Network Switch"
for other Samsung Smartphones see the attached video below:
If your device is having issues trying to scan for your router.. try turning off your router for 2 minutes, then turn it back on.. make sure you wait a few minutes for your router to properly boot back up before you try scanning for your WiFi network again
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Samsung Galaxy S 4G: Not able to send or receive text messages (airplane mode not enabled)
Hello. It's possible that your cellular service has not enabled your ability to send and receive text messages on their end..
Call your service provider on a different phone to let them know that you are not able to send or receive text messages in all the areas you've tried. Indicate how far away from each location that you are unable to get signal from. If you can not send or receive text messages anywhere at all, this should also be addressed. They may even walk you through resetting your APN settings
In some cases, it could just be the building that you are located in that is blocking cellular service.
Sometimes, it could be a fault of the service provider. They may need to reset your connection on their side. If not, at least you can get them to try..
It sounds like it is not the fault of your phone, but has to do with the Cellular Service Provider.
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no root !
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Hi,
U will have Quick setting button on top of notification panel. In that u will be having sound symbol. Click on that to change the volume modes to Ring or Vibrate or Mute.
or
Go to settings option, in that u will have Sound option. Open that. In that u can check the option Vibrate when ringing option.