So I picked up a Note 4 model SM-N910C which is the exynos octacore WITH LTE. I am using it with Tmobile USA in Chicago. I get horrible horrible LTE signal. At my apartment I get .53 dl and 3-4 Upld.
When I first got it I went to about phone and it had arab emirates firmware lollipop. Ive tried at least 2 others and still get crap signal. i had a similar issue with a phone before and I fixed the issue by getting into a secret menu and messing with the lte and prl settings. This phone will not let me do that though. Do I need to flash a different radio? What can I do? I am doing the KIES recovery/reset as I type.
I'm facing the same problem here. I have a SM-N910C from mexico but the original carrier, Telcel, didn't provide android 5.1.1 so I flashed a rom from another country. The problem is that now my signal is really bad, when I'm lucky I get two bars but most of the time is just one or none. I can still receive and make calls outdoors but I loose service as well as data almost inside any building. I was wondering if I can solve that with some configuration or reflashing the radio but I'm not sure.
Could please anyone provide some help and guidance?
Thanks!!
I just bought the 935F and I am stuck on Edge data. I also have the At&t model of the gs7 edge and I get full LTE and good speeds in the exact same spot. Same sim card, and I believe I'm using the correct APN settings. I want to switch to the international model because at&t ruins this phone with bloatware. I get a lot of lag on the at&t gs7 edge, and no lag at all on the 935F. Now I just need the LTE to work!!
Anyone able to try and help? I did search the forum first and didnt see anything relevant.
do you see 4G instead but not LTE on your 935F? US carriers call HSPA+ 4G (while it's 3G+) so when their branded phones are in LTE they add an LTE (or 4G LTE for tmobile) icon. My G935F always shows 4G but it's actually LTE. You can dial *#0011# to check for reception or download the LTE discovery app to check your reception
Remix22 said:
do you see 4G instead but not LTE on your 935F? US carriers call HSPA+ 4G (while it's 3G+) so when their branded phones are in LTE they add an LTE (or 4G LTE for tmobile) icon. My G935F always shows 4G but it's actually LTE. You can dial *#0011# to check for reception or download the LTE discovery app to check your reception
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Thank you very much for the reply. I see E for edge data. I think I may have made some progress by changing the APN settings though. I am seeing LTE now, but the speeds are terrible. Nothing close to what I was getting with the ATT branded version of the GS7E.
Anyone know exactly what APN settings the G935F should be using on ATT? I have unlimited data, so I want to be able to use it!
toptekjon said:
I just bought the 935F and I am stuck on Edge data. I also have the At&t model of the gs7 edge and I get full LTE and good speeds in the exact same spot. Same sim card, and I believe I'm using the correct APN settings. I want to switch to the international model because at&t ruins this phone with bloatware. I get a lot of lag on the at&t gs7 edge, and no lag at all on the 935F. Now I just need the LTE to work!!
Anyone able to try and help? I did search the forum first and didnt see anything relevant.
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Click to collapse
It has nothing to do with the APN, but you have to tell AT&T you have an AT&T branded phone and give them an imei of that phone. Or your 935F will not be able to get lte.
Psyscope said:
It has nothing to do with the APN, but you have to tell AT&T you have an AT&T branded phone and give them an imei of that phone. Or your 935F will not be able to get lte.
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Hmm, Ok thank you. I'll try that now. I haven't been on att in years, and don't remember having to do that but I will now.
Yeah if you don't have an ATT branded phone they will limit you to the 4g network and not the new LTE network. I bought a cheap Motorola LTe phone that was an at&t approved. I gave them its imei, and I started to get lte.
Psyscope said:
It has nothing to do with the APN, but you have to tell AT&T you have an AT&T branded phone and give them an imei of that phone. Or your 935F will not be able to get lte.
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Ok so I worked with At&t and gave them the IMEI, but still no LTE data
Psyscope said:
It has nothing to do with the APN, but you have to tell AT&T you have an AT&T branded phone and give them an imei of that phone. Or your 935F will not be able to get lte.
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No, you do not have to give AT&T the IMEI of your 935F phone.
I just got back to the US, popped my AT&T SIM card in my new intl S7e (935FD) and LTE works as it should. I get speeds of >10 Mbs
LTE bands 2 & 17 are used (in my area - Portland)
Not getting full speed LTE
I have the 935FD S7E. I just went to the AT&T store as I needed a nano sim. The guy who helped me did a Speed Test right next to me performing the exact same test. His AT&T S7 was receiving in the mid to high 30's for download speed while I was getting in the mid 20's. He checked the APN, we assumed that I was getting an LTE speed even though no LTE icon showed. However his S7 was receiving significantly consistent faster data rates than I was getting.
Is there anything I can do to resolve this?
This will be the main hindrance for me buying the international version. If someone gets the LTE thing figured out I'm all in
Sent from my SAMSUNG-SGH-I337 using XDA-Developers mobile app
For what it's worth, AT&T LTE problems in my case were caused by custom ROM.
I just got International S7 Edge (G935F), and without thinking, rooted it and installed SuperMan-ROM 1.8.1. In that state I did have LTE formally, but speeds were very bad. Tried turning data on/off, changing APNs - nothing helped. As a result, in some places data connection barely worked (1.0 Mbps down / 0.1 Mbps up), and the best result reported by SpeedTest was around 4 Mbps up/down. At the same time, when I moved this SIM card into older XPeria phone, it consistently showed ~15 Mbps up/down, which was normal performance for me on AT&T prepaid in NYC. Unfortunately, I didn't check LTE performance with the original default ROM on the Edge, but I recorded all versions.
I went back to stock ROM using this German stock firmware. It was possible to switch to English during installation. Other downloads in that thread are dead links. I immediately did official OTA update, and after that, I now have normal LTE performance on AT&T (15+ Mbps).
I am pretty sure that at least in my case, the radio which the custom ROM insisted I have (G935FXXU1APEQ) was the problem. After going back to stock, I have baseband G935FXXU1APD1, which is what I had out-of-the-box.
cozzamara said:
For what it's worth, AT&T LTE problems in my case were caused by custom ROM.
I just got International S7 Edge (G935F), and without thinking, rooted it and installed SuperMan-ROM 1.8.1. In that state I did have LTE formally, but speeds were very bad. Tried turning data on/off, changing APNs - nothing helped. As a result, in some places data connection barely worked (1.0 Mbps down / 0.1 Mbps up), and the best result reported by SpeedTest was around 4 Mbps up/down. At the same time, when I moved this SIM card into older XPeria phone, it consistently showed ~15 Mbps up/down, which was normal performance for me on AT&T prepaid in NYC. Unfortunately, I didn't check LTE performance with the original default ROM on the Edge, but I recorded all versions.
I went back to stock ROM using this German stock firmware. It was possible to switch to English during installation. Other downloads in that thread are dead links. I immediately did official OTA update, and after that, I now have normal LTE performance on AT&T (15+ Mbps).
I am pretty sure that at least in my case, the radio which the custom ROM insisted I have (G935FXXU1APEQ) was the problem. After going back to stock, I have baseband G935FXXU1APD1, which is what I had out-of-the-box.
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Click to collapse
Imgo to try this you flash via Odin?
Its ok if MODs want to delete this i have posted same thread in Q&A section
Hello,
I am using Redmi Note 3 SD version. I have used it since December 2016 with Jio(India)
It worked perfectly. Now after using it with Vodafone 4G , i faced issue with 4G and most of the time got 3G network which i thought was restricted to that carrier.
Now i switched back to Jio and 4G drops constantly in some areas where other phones work perfectly with same SIM
I unlocked Bootloader flashed old MIUI version and rooted my phone
I installed Network Guru in that
for Band 40(2300) it drops constantly with LTE RACH being Radio Link Failure and Failure at MSG2
When i lock it to BAND 5(850) it works perfectly. Can someone help me find out whats the issue? I would love to get back to using all the bands as this may prevent me from using network in some areas
Hello everyone! I'll start by saying I've done a lot of reading and searching, and I can't find my answers, so that's why I'm posting.
I recently acquired two LG v20s, which I intend to use as my primary daily handsets. The models are the h910 (att) and VS995 (verizon). Both have TWRP and magisk etc. I love the phones so far and everything is peachy, except one ... sordof big question/issue. LTE bands!! I've seen several people on XDA talk about the bands but I can't determine a clear answer. My first and primary question is, DOES the h910 support band 12/17?!?! Using network signal guru app, band 12 is listed. From what I understand (from what I have read) band 12 IS supported, and 17 is actually a thing of the past. If your phone has band 12, it can pick up all band 17 towers no problem, essentially meaning 12 has replaced 17. However, my h910 WILL NOT use band 12. Not if I force it, not on its own, nada. This is in places where I know band 12(17) exists, and is the strongest signal. In fact virtually everywhere, around the area I live (chattanooga TN). What actually really surprises me is that the phone gets great LTE reception everywhere I am 95% of the time, without band 12/17. I've checked numerous times (its kindof an ongoing thing...) and I've gotten every single other band, (2,4,5,30) usually with great reception and acceptable or good network speed. But never band 12. I can hold my galaxy note 4 right next to it, and the note will almost always be using band 17, and the LG refuses. Again , I can lock bands with Network signal guru, and still no bueno. If I lock the lg on only band 12, it will simply revert to HSPA.
Does anyone else have experience with this? Are other h910 users able to get band 12? Could I have a faulty handset? Is it software or hardware related? Just curious if anyone else has any info that could be helpful. I have noticed people in other random forums saying their v20 gets poor signal compared to other ATT devices, and I'm wondering if this is why (no band 12). Most people wouldn't know how to check what bands they're getting... or even know what "bands" are at all.
And a quick question about the vs995... I put an att sim in it, and got absolutely no signal at all on any band. Whats up with that?
Thanks in advance folks.
Seems US telecom companies are just weird I have 3 V20 phones that I use as 4G modem when in the country. My Vs995 worked for this for years but suddenly will not use mobile data here in Norway, tried factory reset. 1 910 that does not get phone signal at all - gave up on it, transferred screen and case to the VS995 which was worn, had broken screen. My Korean F800 with android 9 works fine. US carriers place artificial locks on bands it seems.
Hey everyone,
First of all I want to say that I am not very experienced with flashing. I have done it 2-3 times before on my other 2 phones, so I will not undestand everything you say but I'll try to do.
Yesterday I got a Sprint Samsung Galaxy S5 from a friend. As far as I know it is unlocked so I decided to put another ROM that doesn't have that much bloatware. I first tried LineageOS (the latest nightly build for SM_G900P), flashed TWRP before that with Odin, but then I noticed that I cannot connect to my carrier, so then I decided to flash this ROM:
https://forum.xda-developers.com/sp...ment/rom-g900ppca-6-0-1-stock-rooted-t3387717
I flashed the ROM from the recovery, then I flashed the bootloader and modem with Odin. After that success! The rom fired up after 15 minutes of loading and there it was. I was connected to a carrier and had mobile data and I went to bed. So today I noticed that I couldn't get LTE everywhere I go and I started browsing the forums, but I couldn't find anything that could help. The only thing I found was this https://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059 , but all the download links were down.
So I decided to directly ask you guys and gals if you have a solution on how to get LTE signal on my phone.
Thank you in advance and sorry if I misspelled or said something incredibly stupid.
From what I know, the best connection you can get with an S5 in most countries in Europe is 3G. Sprint has the necessary band (2100 MHz) that connects to 3G in most countries in Europe. However, when it comes to LTE, the sprint S5 only has bands 25 (1900MHz), 26 (850MHz), and 41 (2500MHz). This is fine in the US for the Sprint Network, but European countries rely mainly on bands 3 (1800MHz), 7 (2600MHz), or 20 (800) for LTE, which are not found in the sprint variant.
I actually spent lots of time myself trying to unlock more bands using the link you posted, but I just couldn't do it. I couldn't access some menus that were necessary for the unlock during the process.
Also, from what I know, the carrier/data connection can only be acquired by using a stock rom such as the one you found. Custom roms like LineageOS will not connect to a carrier.
So every time i travel to Europe with my Sprint S5, i just put stock rom, and have to stick to 3G. So, that's the current situation with Sprint and LTE in Europe. I would be happy to hear any success stories.
I can confirm Band 3 1800 Mhz LTE works on Galaxy S5 900P Sprint on a network in Europe.