Hello, I was wondering if anyone could help me with a really annoying problem concerning 4G.
First of all, you need to know that I am using a Telcel SIM card. On Stock ROM apparently I have 4G, but testing the connection speed and comparing it with my mom's S5, it has 3G speed, not 4G, even though the 4G symbol appears on the status bar.
Until yesterday I was using Resurrection Rom, but I decided to go back to stock to see if it solved the problemsI had not only with 4G, but for network in general. I did and I have been testing it, to no avail. I still have issues. Since I first flashed Resurrection, 4G never showed up, just 3G. Also, I travelled this vacation and with all the movement my cellphone switched from 3G to 2G (and didn't switch back unless I mess a little with the operators (is that the name?)) and sometimes it didn't have any coverage at all! Meanwhile, my mom had no problems (she has a G900-F, with native Telcel).
Also, when I switch to 3G-only the 4G symbol still shows.
What is the problem? And, more importantly, how can I solve it?
Edit: I added some attachments.
Attachment 1: This is from my S5. You can see the 4G symbol but the speed is 3G-like.
Attachment 2: From my mom's S5 in 3G.
Attachment 3: My mom's S5 in 4G.
First of all, you need to know that I am using a Telcel SIM card. On Stock ROM apparently I have 4G, but testing the connection speed and comparing it with my mom's S5, it has 3G speed, not 4G, even though the 4G symbol appears on the status bar.
Until yesterday I was using Resurrection Rom, but I decided to go back to stock to see if it solved the problemsI had not only with 4G, but for network in general. I did and I have been testing it, to no avail. I still have issues. Since I first flashed Resurrection, 4G never showed up, just 3G. Also, I travelled this vacation and with all the movement my cellphone switched from 3G to 2G (and didn't switch back unless I mess a little with the operators (is that the name?)) and sometimes it didn't have any coverage at all! Meanwhile, my mom had no problems (she has a G900-F, with native Telcel).
Also, when I switch to 3G-only the 4G symbol still shows.
What is the problem? And, more importantly, how can I solve it?
Edit: I added some attachments.
Attachment 1: This is from my S5. You can see the 4G symbol but the speed is 3G-like.
Attachment 2: From my mom's S5 in 3G.
Attachment 3: My mom's S5 in 4G.
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