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[Completed] Phone connection help please

I bought a galaxy note 3 t-mobile that is unlocked from a friend. I have cricket as the service provider and I do have 4g lte only ever once in awhile it will connect to it though but most of the time it's on "e" about 98% of the time. I Google the cricket apn setting and put those in to see if it would change but still nothing happens still the same thing. Would anyone happen to know apn settings or something I can try? I've even tried *#2263# and changing those setting but still nothing. Any ideas?

Hi there,
The best place for this device specific question is here :
T-Mobile Galaxy Note 3 Q&A, Help & Troubleshooting
Good luck

[Completed] Note 5 nfc help

I have an AT&T Note 5. I've had it for a little over a month. When Samsung Pay announced it supported Chase cards I tried to use it and turned on my NFC. When I attempted payment, it didn't work. Now my NFC button is greyed out and stuck to on. It's running down my battery like crazy and I can't turn it off. I have tried factory reset, clearing setting cache, rebooting from bootloader etc. Please help. Even when I force stop the NFC process it just comes back.

Gantrox said:
I have an AT&T Note 5. I've had it for a little over a month. When Samsung Pay announced it supported Chase cards I tried to use it and turned on my NFC. When I attempted payment, it didn't work. Now my NFC button is greyed out and stuck to on. It's running down my battery like crazy and I can't turn it off. I have tried factory reset, clearing setting cache, rebooting from bootloader etc. Please help. Even when I force stop the NFC process it just comes back.
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Greetings.
Thank you for using XDA Assist. Here is the Note5 homepage:
Samsung Galaxy Note5
Here is where you should ask your questions:
Galaxy Note5 Q&A, Help & Troubleshooting
Good luck!

[Completed] Samsung Galaxy S6 disconnecting from network

I have a Samsung Galaxy S6 that was dropped into a hot tub :/ The water damage has been rectified and a new battery put in but the issue with it now is that it keeps connecting and disconnecting from the provider network so sometimes texts and calls come through and sometimes I don't get them until it connects again hours later. I've tried the SIM card in another phone and the SIM card is fine. I've tried resetting it back to factory settings and a friend went into the developer settings and played with a couple things in there (I'm not sure what but he knew what he was looking for). That fixed it for about an hour but now it's back to the same thing.

XDA Visitor said:
I have a Samsung Galaxy S6 that was dropped into a hot tub :/ The water damage has been rectified and a new battery put in but the issue with it now is that it keeps connecting and disconnecting from the provider network so sometimes texts and calls come through and sometimes I don't get them until it connects again hours later. I've tried the SIM card in another phone and the SIM card is fine. I've tried resetting it back to factory settings and a friend went into the developer settings and played with a couple things in there (I'm not sure what but he knew what he was looking for). That fixed it for about an hour but now it's back to the same thing.
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Greetings,
Thank you for using XDA Assist.
Please create an XDA account so you can ask the experts found within your device's forums found here:
Samsung Galaxy S6
Your questions will go here:
Galaxy S6 Q&A, Help & Troubleshooting
Good luck and welcome to XDA!

[Completed] Samsung Galaxy A3 Diagnostic Codes are not working

Hi,
My Samsung phone got a little bit of water through the charging port. Initially it was not getting charged, but after a day it started to charge. It was working normally, but now after 2 days there are no signals in the phone. While making any calls it shows the "Mobile network not available error" and Diagnostic codes are not working as well. The phone's IMEI number is not lost because it is still showing the IMEI in the "About phone" menu. It just shows the SIM card status as "out of service".
How can I check which part has been damaged so I can get it repaired. Or could the radio be damaged? How can I test the radio?
Could it be a software issue, can rooting and installing a custom rom fix the issue?
Any help would be highly appreciated.

Hello, and welcome to Assist,
I'm afraid we can't really help if you've damage with water. Best thing for you is to go on service center and try some cleaning.
You'll have to create an account to post in the main forums if you have any other questions.
Here is you device forum : Galaxy A3, A5, A7, A8 Q&A, Help & Troubleshooting
Good luck
Razvan

samsung pay stuck.

Hi everyone, I tried searching for this topic but I did not see it.
I'm stuck at validating my cards. I carried my pay over from my note 8 to my 10+ and it will not validate, add cards or anything.
I've reinstalled, cleared cache, data, and updated. It stopped working on my s3 frontier at the same time.
Any suggestions?

How do you carry your pay over?

You might have to re-add the cards again like it's a new card.
Sent from my SM-N975U using Tapatalk

Archaenon said:
Hi everyone, I tried searching for this topic but I did not see it.
I'm stuck at validating my cards. I carried my pay over from my note 8 to my 10+ and it will not validate, add cards or anything.
I've reinstalled, cleared cache, data, and updated. It stopped working on my s3 frontier at the same time.
Any suggestions?
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I validated mine this morning. Pretty easy as they're in samsungs system. I just needed to reenter the ex. date, cvc and zip code.