on my Samsung galaxy s5, my 4g won't work anymore I can get 3G but not 4g?

[AC Question]

When I first got the phone it worked fine but then the 4g stopped working I try calling my service providers they did a lot but they never did fix it. They sent me a new Sims card but it still won't work. I know I got coverage because my brother has the same phone and every thing my phone is defective or something. We'll that's what you get for buying stuff from china.

 

[B. Diddy]

Welcome to Android Central! You got your S5 directly from China? Are you sure it's a genuine Samsung, or could it be a knockoff? What's the exact model number?

 

[ironass]

Thank you for your post.

There are currently 42 different models of the Samsung Galaxy S5 and over 3,000 different stock Samsung firmware versions, worldwide, covering 7 different Android platforms, Android 4.4.2, Android 4.4.4, Android 5.0, Android 5.0.1, Android 5.0.2, Android 5.1.1 and Android 6.0.1. Not all issues will affect all models or firmware releases and your answers to the following questions will help in the forum's answers to your specific query.

#1. Could you post your Model number and Android version...

To locate these, go to...

Settings > More > About device > Model number and Android version

This will give you the model of Samsung Galaxy S5 that you have and which Android version you are on.


#2. Your current Firmware, (not just Baseband), version .

To locate your current firmware version, go to the stock, Samsung, dial pad and type in...

*#1234#

This will give you your, "Version", details in full, usually 3 lines of information, AP: CP: CSC:, which may all be relevant.

*** If code *#1234# has been disabled on your firmware, you can download and install, free from the Play Store, Phone Info Samsung and it will give you, under Firmware... PDA, CSC and Baseband, versions as well as your Product code under the CSC CODE heading.


#3. Also helpful would be your carrier, (service provider), location, (UK, India, Russia, USA, etc: ), and if your phone is rooted or not and running a custom ROM, (give details).


Thanks. The above helps us to help you and hopefully someone will be able to reply to you shortly.