4G problem - Galaxy S 5 Q&A, Help & Troubleshooting

What may cause my 3G/4G to not work? Its working but download speed is reduced to 0.03MB/s. I have MM rom and BL and modem. Everything else is perfect except that. Any ideas ?

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Data Drops after Flash 12B Modem

Wondering help on this..I had flashed the 12B Modem while on the latest Verizon Unofficial CM11 Rom, But i experience lots of data drop. I flashed 12A but experience the same..So I jump back to 11A Modem, still having data drop constantly where I cant make calls or anything. Any suggestions? Hoping this can straighten out without me having to revert to stock rom, Plus I'm with T-Mobile on this Verizon G2.
Never had this issue til I flash modem to begin with. Only did so too see if my T-Mobile would get better coverage while on a Verizon G2..
Any suggestion or help would be gladly appreciated.
u dont have nandroid of previous CM11 prior to flash new modem?
I have had horrible luck with data on all AOSP roms running any modem. My phone usually has 1 or two bars of 3g but upon a restart or manually forcing LTE only I get great LTE coverage and speeds for a few minutes until it drops back down to 3g. Here's an album with screen shots showing my average 3g signal and when i force LTE only. imgur / a / 6fZK2 (Add .com & Remove spaces, cant post links yet)
Anyone else have this problem? Currently running the latest 12/26 CM11 nightly and the latest 12B modem. I figured the problem was not having updated modems for 4.4 as I had similar problems on my Gnex
zekurosu said:
u dont have nandroid of previous CM11 prior to flash new modem?
Click to expand...
Click to collapse
Unfortunately I didn't back it up.
Teddyjo said:
I have had horrible luck with data on all AOSP roms running any modem. My phone usually has 1 or two bars of 3g but upon a restart or manually forcing LTE only I get great LTE coverage and speeds for a few minutes until it drops back down to 3g. Here's an album with screen shots showing my average 3g signal and when i force LTE only. imgur / a / 6fZK2 (Add .com & Remove spaces, cant post links yet)
Anyone else have this problem? Currently running the latest 12/26 CM11 nightly and the latest 12B modem. I figured the problem was not having updated modems for 4.4 as I had similar problems on my Gnex
Click to expand...
Click to collapse
Ahh I see.. Well I'm gonna try to go stock and see if its any better, I'll definitely post my findings if its ROM related or just Modem that sucks.
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Went to latest Stock, Data is back to normal again for me. So I know do believe it was rom related like you mention

[Q] i have a question and i'm confused.. plz help me

ok here it is. i've flashed various roms but don't really know what everything is, i just followed all those insturctions but never bricked my device..
I live in China, use 3g mobile internet, my phone is korean note2(shv-e250l), use slimkat 4.4.2 nightly, bandwidth MI1, kernel thor 2.9.
i've been using these for about 1 month, and there was not any big problems, except that it feels like my signal strength or internet speed isn't as good as stock rom
but yesterday, when I hung up after calling my friend, all of sudden my phone can't read my sim card, so i reboot the device, and my mobile network doesn't work, and i reboot again, finally everything works.
after that, everytime i call someone my phone goes stupid and i have to reboot it twice.
and I started to wonder, does my bandwidth need to be updated? can I use newest stock rom's bandwidth?
newest stock rom of korean note2 is NA1, will using its bandwidth solve my problem?
if it does the magic, how do i apply bandwidth of NA1 to my phone?
HELP ME.............

[Q] N900W8 Help with slow internet speeds

Hi! I have a N900W8 from Claro PR. I'm not new to flashing custom ROMs but this phone has definately given me some problems. I've tried just about every Rom available and every modem and I can't get better network speeds. I flash everything step by step (WiFi/BT Fix and everything else needed so that N9005 ROMs work on this device) and still no luck. I've even flashed the Original Claro PR ROM from sammobile and my internet speed is still very slow. It wasn't like this when the phone was brand new (untouched). Is there anything else I need to change or fix ? APN settings are correct (I've triple checked). If anyone can chime in with any information it will be greatly appreciated.

[Q] Is Poor Data Speed Baseband Related?

Hi
I'd be grateful if anyone can offer any advice about very poor 3g speed. On my S5 my data connection fluctuates between 1mb and being so slow it cuts out. The same sim card in my iphone gets a steady 3mb so I know the problem is something to do with the S5.
I'm not sure if it's something that can be configured manually or if changing the modem or kernel will help. I'm not too knowledgeable about these things and am a bit nervous to mess with them when I don't understand what I'm doing.
My phone is on BOA3 modem with a BOA3 Lollipop rom (Ambassadii's rom). It had the same data problem on the Odin flashed stock Lollipop. Should I try a different modem and can anyone suggest which one please? I'm on giffgaff (o2) in the UK.
Thanks

[Q] I9505. No signal when using 3G/4G. 2G works

Hi.
After updating Danvh's lolipop-rom to the latest version, I lost my signal and wifi. When I force my phone to use 2G (GSM only) in network-settings, everyting works normal.
But of cource I want the speed of 3G and 4G when using internet!
Sometimes (not often) 3G works.
Sometimes the phone says it has signal, but calls, internett etc don't work
I tried to flash the latest modem (XXUHOC6), but no luck. Have also tried modem XXUGNK4, XXUHOB8 and XXUHOB7. I tried to go back to the older version of the custom rom, but no luck
I have now downloaded the latest official stock rom from sammobile. But same problem with stock rom.
Any suggestions?
I have IMEI
Sorry, I have the same problem and I am still searching for a solution. And I have been trying everything as you and no solution. Sometimes I think is a hardware issue.
Very frustrating :S
Hope to find a solution soon.
I dont want to buy a new phone yet. There is no other phones out there that I want

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