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weird LTE performance on my N5

Hi there.
I have just got a used-N5 on the Internet. It is a D821 (for Indonesia market I think).
Everything is fine except the LTE connection. (2G and 3G connection is normal)
The LTE problem is:
The searching speed is slow.
Even if LTE is connected, the response time and connection speed is extremely slow.
I have taken out my SIM card, and insert it into another N5 (D821) right next to this phone.
The speed is 10 times faster.
I am using CSL in Hong Kong, which the LTE is band 3 and 7 (1800 / 2600).
Baseband is updated to the latest version.
APN setting is correct.
No matter which ROM and kernel I use, the LTE problem exists.
Anyone have idea how to fix it?
Thank you very much!

y2kbugleung said:
Hi there.
I have just got a used-N5 on the Internet. It is a D821 (for Indonesia market I think).
Everything is fine except the LTE connection. (2G and 3G connection is normal)
The LTE problem is:
The searching speed is slow.
Even if LTE is connected, the response time and connection speed is extremely slow.
I have taken out my SIM card, and insert it into another N5 (D821) right next to this phone.
The speed is 10 times faster.
I am using CSL in Hong Kong, which the LTE is band 3 and 7 (1800 / 2600).
Baseband is updated to the latest version.
APN setting is correct.
No matter which ROM and kernel I use, the LTE problem exists.
Anyone have idea how to fix it?
Thank you very much!
Click to expand...
Click to collapse
Questions belong in Q&A.
Every D821 is the same, every D820 is the same. There are no specific regional versions for a D821.
The ROM and kernel have nothing to do with your network connectivity.
Try flashing a different radio version.

Lethargy said:
Questions belong in Q&A.
Every D821 is the same, every D820 is the same. There are no specific regional versions for a D821.
The ROM and kernel have nothing to do with your network connectivity.
Try flashing a different radio version.
Click to expand...
Click to collapse
Excuse me, do you mean try flashing a different baseband version?
I have tried the one comes with Kitkat (4.4.4) but no luck.
I know every D821 should be the same, but I just wonder why under same configuration (ROM, kernel, baseband), but the result is different.
I suspect if my D821 is a remarked D820.
Thanks.

y2kbugleung said:
Excuse me, do you mean try flashing a different baseband version?
I have tried the one comes with Kitkat (4.4.4) but no luck.
I know every D821 should be the same, but I just wonder why under same configuration (ROM, kernel, baseband), but the result is different.
I suspect if my D821 is a remarked D820.
Thanks.
Click to expand...
Click to collapse
Yeah, radio and baseband are the very same.
With the exact same software, the result can be different because not every device is made the same; the perfect Nexus 5 does not exist.
The only difference between a D821 and a D820 are the LTE bands it can access, everything else including the 2G/3G bands are the same. If it was actually a D820, you'd probably get no LTE at all, unless your carrier supports one of the bands a D820 can access; it would not mean you get "slower" or "worse" LTE performance - you'd either get it or you wouldn't.
It might just be a hardware issue if you think it's slow.

Lethargy said:
Yeah, radio and baseband are the very same.
With the exact same software, the result can be different because not every device is made the same; the perfect Nexus 5 does not exist.
The only difference between a D821 and a D820 are the LTE bands it can access, everything else including the 2G/3G bands are the same. If it was actually a D820, you'd probably get no LTE at all, unless your carrier supports one of the bands a D820 can access; it would not mean you get "slower" or "worse" LTE performance - you'd either get it or you wouldn't.
It might just be a hardware issue if you think it's slow.
Click to expand...
Click to collapse
I believe it is a hardware issue as well
If someone on xda give me a hope then I don't need to bargain with the shop
Thanks :good:

Hi all.
Last night I have brought it to the shop and tested there.
The LTE speed is very normal... I cannot trigger the problem by any means...
I suppose it to be the signal reception issue.
I left the shop and found the speed might be somehow dropped, but it could be still considered as normal.
I went home, re-flash another ROM and prepare for normal use.
However, the LTE becomes abnormal again...
I have found an interesting thing.
I have flashed stock ROM and OEM LOCK before bringing back to the shop, and it is normal speed.
I went home, OEM UNLOCK and flashed a custom ROM, it is abnormal.
Now, I have just re-flash the STOCK, and the LTE is not so normal.
But after OEM LOCK, it seems to be fine.
I believe there is no relation, but is it possible the OEM LOCK to do with the LTE issue?
Thanks. :crying:

y2kbugleung said:
Hi all.
Last night I have brought it to the shop and tested there.
The LTE speed is very normal... I cannot trigger the problem by any means...
I suppose it to be the signal reception issue.
I left the shop and found the speed might be somehow dropped, but it could be still considered as normal.
I went home, re-flash another ROM and prepare for normal use.
However, the LTE becomes abnormal again...
I have found an interesting thing.
I have flashed stock ROM and OEM LOCK before bringing back to the shop, and it is normal speed.
I went home, OEM UNLOCK and flashed a custom ROM, it is abnormal.
Now, I have just re-flash the STOCK, and the LTE is not so normal.
But after OEM LOCK, it seems to be fine.
I believe there is no relation, but is it possible the OEM LOCK to do with the LTE issue?
Thanks. :crying:
Click to expand...
Click to collapse
Bootloader lock/unlock state has absolutely nothing to do with your issue.
The ONLY difference between having it locked/unlocked is so you can flash images. It does NOT affect anything else.

I am a web programmer. I always suspect something strange when something cannot be explained (bugs in coding, I mean)
I have tested several times today. Locked bootloader still gives a poor LTE result.
I really have no idea why there is LTE problem...

y2kbugleung said:
I am a web programmer. I always suspect something strange when something cannot be explained (bugs in coding, I mean)
I have tested several times today. Locked bootloader still gives a poor LTE result.
I really have no idea why there is LTE problem...
Click to expand...
Click to collapse
Again, bootloader state affects nothing but the ability to flash images.

Yes I understand.
Just trying everything to find out a reason...

No more LTE connection after upgrading to cm12.

As the title suggests, I no longer have connection to LTE services, beforehand I could get full signals.
I downgraded back to cm11s, and installed the previous XNPH44 modem, still no luck.
I have also tried XNPH33, 30 and 25. I have even tried the ColorOS modem as well as the M9.
Furthermore, I have tried the *#*# secret settings, currently it is on LTE/WCDMA. I can reach H+ connectivity but still not LTE.
I live in Australia, and am with Vodafone. Meaning Band 4 is the one I need to connect to, (1850mhz I think.)
Please advise on what I should try next.
Thanks.

Alanw410 said:
As the title suggests, I no longer have connection to LTE services, beforehand I could get full signals.
I downgraded back to cm11s, and installed the previous XNPH44 modem, still no luck.
I have also tried XNPH33, 30 and 25. I have even tried the ColorOS modem as well as the M9.
Furthermore, I have tried the *#*# secret settings, currently it is on LTE/WCDMA. I can reach H+ connectivity but still not LTE.
I live in Australia, and am with Vodafone. Meaning Band 4 is the one I need to connect to, (1850mhz I think.)
Please advise on what I should try next.
Thanks.
Click to expand...
Click to collapse
is your APN on LTE ... ?

Cholerabob said:
is your APN on LTE ... ?
Click to expand...
Click to collapse
Haha, you're not much help are you.
As written above I used to get full LTE coverage in my area. I even included the LTE band that the LTE broadcasts on.
It is also confirmed on Vodafone's website if you want to have a look.

Is your issue similar to this thread or do you simple just not have LTE, only and never get it on CM12?
http://forum.xda-developers.com/one...ation-mark-t2990701/post57935374#post57935374

TigerDNA said:
Is your issue similar to this thread or do you simple just not have LTE, only and never get it on CM12?
http://forum.xda-developers.com/one...ation-mark-t2990701/post57935374#post57935374
Click to expand...
Click to collapse
Its only LTE that I don't get, but it was only after I updated to CM12. I reverted back to kitkat right now and I no longer get LTE.

Alanw410 said:
Haha, you're not much help are you.
As written above I used to get full LTE coverage in my area. I even included the LTE band that the LTE broadcasts on.
It is also confirmed on Vodafone's website if you want to have a look.
Click to expand...
Click to collapse
No you didn't, you said you used the *#*# setting which is NOT the same as APN setting in the Mobile Network settings. Before insulting people do your homework.

APN worked!
Cholerabob said:
No you didn't, you said you used the *#*# setting which is NOT the same as APN setting in the Mobile Network settings. Before insulting people do your homework.
Click to expand...
Click to collapse
Thank you!!! I have had my OnePlus One on cm 12s for about a week and the LTE has never worked since I upgraded. Just H+ works. And more than that - it keeps turning the H+ (3G) on and off which I think it's really killing my battery life!!! I have been trying loads of things to get my battery life back to what it used to, huhuhu. Turns out my APN got set to T-mobile somehow! I have Red Pocket mobile GSMT which runs on T-mobile and I always got LTE with it till the upgrade. (I'm in USA.) Just had to switch the APN from T-mobile back to Red Pocket 4G. The LTE works again and never cuts in and out!
:good: :good: Thank you! :good: :good:

LOST my LTE connectivity
LOST my LTE connectivity after upgrading my oneplus to CM12,my oneplus originaly came with chinese color os ,,after i install cm11 then cm12,,I put LTE only mode using *#*#4636#*#*,no signal,Im in srilanka ,using Dialog LTE band3 1800mhz

Me too.
Same situation, with Vodafone in Italy.
Maybe the last OTA upgrade introduced this issue.
Cyanogen 12.1-YOG4PAS2QL
Base Band: DI.3.0.c6-00241-M8974AAAAANAZM-1
Build 24 sept 14:42 LMY48B

Go in your apn setting and change your bearer to lte.i guess its set to unspecified right now.

? How to get LTE speed on US LTE tablet running ROW LTE Image?

Hi folks,
I've got the US LTE original Shield tablet, which is the replacement that NVidia sent me for my original "pyro edition" tablet. Since ATT haven't released the Nougat (Android 7, software package 5.0 or 5.1) builds for this tablet, but the ROW tablets are able to get this update, I flashed my tablet using adb/fastboot with the full ROW 5.0 package downloaded from the NVidia site. I then connected to WIFI, and let it pull down the 5.1 update. Factory reset, flash TWRP, rooted with SuperSU. Easy peasy. Then I set up the tablet with my accounts and such.
Based on good info from user @Son-j I made two build.prop edits, changing ro.build.flavor to wx_na_do-user (was wx_un_do-user) and ro.product.name to wx_na_do (was wx_un_do). This changed the reported signal type from H+ to 4G. Unfortunately I'm having trouble finding the thread where he suggested doing this. I think it was on the geforce web forum.
The only problem I've found so far is that I'm not getting LTE speeds. I was in Chicago for a couple days, in an area with strong LTE signal, and my other devices were reporting LTE and getting ~20Mbps down / 10+ Mbps up. My Shield was pulling maybe 8 Mbps down at best , and 1-2 Mbps up. At home in my suburban location, the difference is negligible (most devices here do 5 Mbps down / 1 Mbps up, LTE or 4G).
Still, I'd like to fix this if possible. Are there further edits or flashings that will let my US device running the ROW build get LTE? I have gone in and verified that my APN settings are the recommended ones from ATT. These showed up automatically, and matched the ATT recommendations.
Thanks in advance!

Hi I'm not sure but I there was a thread here in XDA that says it's still difficult to change the LTE (RoW to US, and vice versa) bands because developers couldn't find yet which part of the code to modify... It's not also confirmed if it is indeed possible to change the LTE bands to support.
So basically, flashing RoW LTE on US LTE device will still result in US-LTE supported bands. That's what I understood.
But what you did is quite a revelation. Can anyone else confirm that modifying the build prop will work? Boy I'm excited!

Son-j said:
Hi I'm not sure but I there was a thread here in XDA that says it's still difficult to change the LTE (RoW to US, and vice versa) bands because developers couldn't find yet which part of the code to modify... It's not also confirmed if it is indeed possible to change the LTE bands to support.
So basically, flashing RoW LTE on US LTE device will still result in US-LTE supported bands. That's what I understood.
But what you did is quite a revelation. Can anyone else confirm that modifying the build prop will work? Boy I'm excited!
Click to expand...
Click to collapse
Hi @Son-j -
Thanks! Do you happen to remember which thread had those two buildprop edits? I found them after seeing a post from you a few days ago, but now I can't find it at all. My google mojo has fled me.
I'd like to have a link there so others can see the original source.
It would be nice to get LTE speed, if someone knows how, but most places where I use the tablet don't have super fast LTE, so the difference for me isn't enough to make me downgrade to the marshmallow US LTE build. I'll stick with nougat for now, and hope eventually to get full speed. Who knows, maybe ATT will eventually release the 5.1 US LTE build...

For clarity here is the set of APN settings I'm using. I'm going with the column in the center at the bottom for Tablets:
https://www.att.com/esupport/article.html#!/wireless/KM1062162
All of this was correctly entered by default except I did need to edit two keys:
APN was listed as broadband instead of Broadband (yes, I'm picky, but wanted to match case)
APN type was listed as just default. I edited it to match the listed setting of: default,mms,supl,hipri,fota
Also I'm set to LTE for "Preferred network type"

Ok I think there's a misunderstanding. Uhm, I'm trying to look for the related posts here at the Nvidia threads but it seems to have disappeared.
Just to set something straight, LTE speed is influenced by:
1. LTE device with specific supported LTE bands
2. LTE sim
3. Location with LTE signals
I take it that for your specific device - US LTE Shield Tablet (just like mine) - you satisfy all 3.
For the record, flashing RoW LTE on our US device won't change the supported LTE bands (check baseband code in About Tablet section of settings). So if you used to have AT&T LTE speeds/signals using US LTE ROMs, it shouldn't change if you flashed RoW LTE ROM on the same device.
We are speculating though that there might be a way, software/firmware speaking. We are hoping it's not hardware-baked.

Son-j said:
Ok I think there's a misunderstanding. Uhm, I'm trying to look for the related posts here at the Nvidia threads but it seems to have disappeared.
Just to set something straight, LTE speed is influenced by:
1. LTE device with specific supported LTE bands
2. LTE sim
3. Location with LTE signals
I take it that for your specific device - US LTE Shield Tablet (just like mine) - you satisfy all 3.
For the record, flashing RoW LTE on our US device won't change the supported LTE bands (check baseband code in About Tablet section of settings). So if you used to have AT&T LTE speeds/signals using US LTE ROMs, it shouldn't change if you flashed RoW LTE ROM on the same device.
We are speculating though that there might be a way, software/firmware speaking. We are hoping it's not hardware-baked.
Click to expand...
Click to collapse
Thanks Son-j. It kind of freaks me out that just a week ago I found the thread that recommended those two changes in buildprop, but now I can't find it, and apparently neither can you! So maybe I'm not crazy, since it's more than just me having problems finding it.
Anyway, yes, I used to get the LTE indicator on the tablet, when in an area that has decent reception of those bands. At my workplace, which is a building built like a Faraday cage, we can get only ATT service, via repeaters spread throughout the building (I switched from Verizon in part due to this). Phones almost always report ~3 bars of LTE in places I usually find myself within the building. However, speeds tend to be <10 Mbps (tested using Speedtest.net from either my phone or tablet). So, despite getting "LTE service" there (prior to my software update), the speeds were nothing so great. For this reason, I'm not TOO worked up that my US tablet running ROW software isn't reporting LTE... most places where I use the tablet don't have blazing fast LTE, and the difference between the 4G service it actually gets and the LTE it "used to get" is not that great.
I would like to fix the problem if possible, but it's not a critical thing, and I may just put it on the back burner until the US LTE 5.1 image comes out, then flash back to that. I've got lots of other fish to fry these days.
Always interesting discussion. Thanks Son-j!
Marc

If it's just a speed issue, that will be the provider's end. If it's a signal issue, that's device problem.
It's possible to get an LTE signal but with HSPA speed in some areas.

There is an app called LTE Discovery. It will tell you which band it is currently connected to. I've got it on my tablet on T-Mobile. I am having problems with it connecting to anything other than 3G. But I have read others with the Shield tablet having similar problems with T-Mobile.
Sent from the Delta Quadrant using Tapatalk

caseyatbt said:
There is an app called LTE Discovery. It will tell you which band it is currently connected to. I've got it on my tablet on T-Mobile. I am having problems with it connecting to anything other than 3G. But I have read others with the Shield tablet having similar problems with T-Mobile.
Sent from the Delta Quadrant using Tapatalk
Click to expand...
Click to collapse
Thanks @caseyatbt,
I was unaware of that app. I downloaded it on my phone (which gets LTE just fine at my house, most of the time) and it reports all kinds of fun stuff about the LTE signal it's connected to. On the US Shield tablet running ROW stock, this is what I get, which frankly makes me think the tablet is connecting via CDMA of all things, despite having chosen all the correct options in the Settings / Mobile section:

The fact that my radio seems to be connecting to WCDMA instead of GSM is kinda freaking me out, folks.
I'm tempted to try flashing the US LTE device Marshmallow recovery image, and see if that fixes it. I understand the flashes don't change the baseband, but since I flashed 5.0 and the the device did an OTA update to 5.1, that might have changed the baseband, eh?
So, if me flashing the marshmallow files doesn't fix it, I might reflash an earlier edition and let it OTA to latest edition, which presumably would install correct "latest" baseband for the model.
We'll see ... I'm still not committed to one direction or another.
Marc

OK, I just flashed the 4.4.0 version of Marshmallow. (full flash of all Nvidia recovery image files). After letting it reboot the first time, it checked for update and found none, as expected.
NO LTE. Downloded the LTE Discovery app, and it still only sees WCDMA signals. Uggh.
Now I'm going to install the 4.3, and let it OTA to 4.4, and hope that refreshes the modem/radio. If anybody is following this, wish me luck!
EDIT: OK, I'm in idiot mode. I downloaded what I thought was the 4.3 US LTE image and it was actually the 4.3 ROW image. I didn't notice this until after flashing, and seeing the H+ icon, and noticing lack of ATT usage tracking app. Oops.
I don't see the 4.3 US LTE image on the site; I'm now downloading the 4.1 image, and will do OTA updates from there, checking as I go how which signal my radio is getting.

No Joy.
I flashed US LTE 4.1 image. AFter the flash, LTE Discovery still reports just HSPA+ signal from WCDMA towers. I then let it take the OTA for 4.4... the latest available for the US LTE tablet, and after it ran through its update process, I'm still on WCDMA.
Uggh. I doubt there's any WCDMA signal where I work so I may have killed my tablet, at least as far as using it at work is concerned.
I'm sure there IS a path back, I just can't imagine what it might be, at the moment. I'll start a new thread to be more specific to this current problem.
Sigh.

Frankenscript said:
Thanks Son-j. It kind of freaks me out that just a week ago I found the thread that recommended those two changes in buildprop, but now I can't find it, and apparently neither can you! So maybe I'm not crazy, since it's more than just me having problems finding it.
Click to expand...
Click to collapse
Eventually found that thread with the buildprop changes, see here if interested or if you ever need to find it.

I just checked my Shield on T-Mobile. In the same area on LTE Discovery that yours says W-CDMA mine says the same thing (under Neighbor Cells). When you scroll to the bottom, what does it say for carrier?

Carrier: AT&T (310410)

caseyatbt said:
I just checked my Shield on T-Mobile. In the same area on LTE Discovery that yours says W-CDMA mine says the same thing (under Neighbor Cells). When you scroll to the bottom, what does it say for carrier?
Click to expand...
Click to collapse
Here are screen shots of my sim status (personal details redacted) and the LTE discovery window:

I am thinking that it is possible that W-CDMA doesn't mean what we think it means. It shows you connected to AT&T so you are not on someone elses network.

caseyatbt said:
I am thinking that it is possible that W-CDMA doesn't mean what we think it means. It shows you connected to AT&T so you are not on someone elses network.
Click to expand...
Click to collapse
I talked to ATT. It's sort of their backup network, not available everywhere. My other devices definitely show LTE. Will post a screen so from my phone a bit later which shows that.
Sent from my LG-D851 using Tapatalk

caseyatbt said:
I am thinking that it is possible that W-CDMA doesn't mean what we think it means. It shows you connected to AT&T so you are not on someone elses network.
Click to expand...
Click to collapse
Here are some pictures taken from my phone, which is working properly. In settings, you can see the LTE network type and in the LTE Discovery app screen capture, all the LTE towers.
ATT maintains a "vestigial" WCDMA to allow some level of connectivity by devices that don't have GSM/LTE, but it's not everywhere and it's pretty slow.
The Shield used to show LTE in the Settings Cellular network type, as well as giving the LTE icon, when appropriate. Now it's just HSPA. Sigh.

Frankenscript said:
Here are some pictures taken from my phone, which is working properly. In settings, you can see the LTE network type and in the LTE Discovery app screen capture, all the LTE towers.
ATT maintains a "vestigial" WCDMA to allow some level of connectivity by devices that don't have GSM/LTE, but it's not everywhere and it's pretty slow.
The Shield used to show LTE in the Settings Cellular network type, as well as giving the LTE icon, when appropriate. Now it's just HSPA. Sigh.
Click to expand...
Click to collapse
My T-Mobile phone shows similar to your phone with LTE. T-Mobile must have a similar vestigial WCDMA that is showing up on my tablet. I still haven't found anyone that was able to get T-Mobile LTE working after it was only giving them 3G and HSPA. I have heard it either worked or it didn't.

Can't make or receive calls from a few select areas.

Strange problem. I tried researching this problem and found nothing.
My OPO works just fine at everywhere except home and another location a few miles away from my home. At these places I can't make or receive phone calls. Data works fine. I flashed the newest resurrection remix, with full wipe. I also tried flashing 3 different modems.
I called T-Mobile and presented them with the problem and they said my phone many be too old and possibly not support T-Mobiles' new LTE bands. So, I asked what band am I receiving at home and they Dont know... I dropped down to prefer 3g and still no luck.
Anyone with a similar experience or may know what I'm dealing with please help. I still love my OPO and would prefer to not buy a new phone.

JaMoFo said:
Strange problem. I tried researching this problem and found nothing.
My OPO works just fine at everywhere except home and another location a few miles away from my home. At these places I can't make or receive phone calls. Data works fine. I flashed the newest resurrection remix, with full wipe. I also tried flashing 3 different modems.
I called T-Mobile and presented them with the problem and they said my phone many be too old and possibly not support T-Mobiles' new LTE bands. So, I asked what band am I receiving at home and they Dont know... I dropped down to prefer 3g and still no luck.
Anyone with a similar experience or may know what I'm dealing with please help. I still love my OPO and would prefer to not buy a new phone.
Click to expand...
Click to collapse
You might not be able to use Lte perfectly on T-mobile(as they already said) since it uses LTE band 12 mostly which OPO doesn't supports..though I guess 3G should work fine.
Also,I guess T-Mobile uses VoLTE to place calls,which again,OPO doesn't support.
Can you list out the modems/firmwares which you've tried so far?

4.0.1.c7-0013.zip
4.0.1.c7-0011.zip
DI.3.0.c6-00241.zip
Thanks for the info. I guess its time to buy another phone.

JaMoFo said:
4.0.1.c7-0013.zip
4.0.1.c7-0011.zip
DI.3.0.c6-00241.zip
Thanks for the info. I guess its time to buy another phone.
Click to expand...
Click to collapse
Can't you just change your Carrier instead?

LTE discovery app shows i am connected to LTE Band 4. 3 of 4 signal bars. Is it possible that t-mobile uses band 4 for data and band 12 for voice?
Mr.Ak said:
Can't you just change your Carrier instead?
Click to expand...
Click to collapse
I am in USA. The next biggest carrier is Verizon which dont work on OPO. Metro PCS is the same as tmobile. I am not going ATT. OPO dont work on Sprint either.

JaMoFo said:
LTE discovery app shows i am connected to LTE Band 4. 3 of 4 signal bars. Is it possible that t-mobile uses band 4 for data and band 12 for voice?
I am in USA. The next biggest carrier is Verizon which dont work on OPO. Metro PCS is the same as tmobile. I am not going ATT. OPO dont work on Sprint either.
Click to expand...
Click to collapse
Yes,it could be possible.
Good luck for your new device.

Note 10+ - Horrible signal strength

I received the Blue Note10+ from the Samsung preorder. (SM-N975U1). I'm using it on T-Mobile.
I'm having serious signal strength issues. My Note 8 is at 3 bars while the Note10+ has 0 or 1 bar while indoors. I usually have full 4 bars with the Note8 when I walk outside, but I rarely hit 3 bars with the Note 10+ wherever I'm at. I've never hit the full 4 bars yet with the Note 10+.
Is anyone having this issue? Any suggestions for a solution?

Bars alone don't tell the whole picture as each phone is calibrated differently. The only way to know for sure is running speed tests and comparing actual signal strength numbers in the settings.

bawobogo said:
I received the Blue Note10+ from the Samsung preorder. (SM-N975U1). I'm using it on T-Mobile.
I'm having serious signal strength issues. My Note 8 is at 3 bars while the Note10+ has 0 or 1 bar while indoors. I usually have full 4 bars with the Note8 when I walk outside, but I rarely hit 3 bars with the Note 10+ wherever I'm at. I've never hit the full 4 bars yet with the Note 10+.
Is anyone having this issue? Any suggestions for a solution?
Click to expand...
Click to collapse
Get the actual signal strength on each phone to compare...I have a TMO version of the S10+ and unlocked versions of the Note, the 10+ and a 9... the db strength measures the same on all phones, yet the TMO version shows additional bars... for example, at 99db to 104db, the tmo shows 3-4 bars, the unlocked 2...
Go to About phone, Status, sim card status to get the actual signal strength...

Same. Pixel 3 works, Note 10 has zero bars and doesn't work. I assume it's not connecting to TMobile bands

I'm on Sprint, got the Note 10+ around 9:30 yesterday. No issues whatsoever.

Can you tell us the dbm compared to the pixel? I'm really curious if I should just flash the tmo firmware before I even bother to load it.

kolyan said:
Same. Pixel 3 works, Note 10 has zero bars and doesn't work. I assume it's not connecting to TMobile bands
Click to expand...
Click to collapse
You might need to update the PRL? Assuming it's a new phone. Have you contacted TMO?
EDIT: Seems like TMO is having issues.

jackdforme said:
Can you tell us the dbm compared to the pixel? I'm really curious if I should just flash the tmo firmware before I even bother to load it.
Click to expand...
Click to collapse
I am home now. Dbm here is the same and everything works. I was in the area that had signal problems and Pixel was probably using band 12 whereas Note just lost signal for good
---------- Post added at 01:42 AM ---------- Previous post was at 01:39 AM ----------
zedwards said:
You might need to update the PRL? Assuming it's a new phone. Have you contacted TMO?
Click to expand...
Click to collapse
I am on Google Fi

Flash the T-Mobile frimware on it

bawobogo said:
I received the Blue Note10+ from the Samsung preorder. (SM-N975U1). I'm using it on T-Mobile.
I'm having serious signal strength issues. My Note 8 is at 3 bars while the Note10+ has 0 or 1 bar while indoors. I usually have full 4 bars with the Note8 when I walk outside, but I rarely hit 3 bars with the Note 10+ wherever I'm at. I've never hit the full 4 bars yet with the Note 10+.
Is anyone having this issue? Any suggestions for a solution?
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Did you check for software update when you got your phone? When I received my unlocked Note 10 on the 21st, there was a new software update. Although the update didn't call out signal strength specifically, but you never know... After playing around with the device, I flashed it with T-Mobile firmware. I didn't have enough time to test cell signal, but haven't seen issues yesterday and today. The signal strength is on par with my Pixel 2 and S10e

I've run speed test at the same exact spot with my Note 8, OnePlus 6T and Note 10+ and they're all just about the same, between 85-90Mbps DL.

I have one less bar at home but still managed to get 120mb download speed. Havent looked at the dbm readings. Elsewhere its been just as good as my s8+.
Unlocked N10+.

Charkatak said:
Did you check for software update when you got your phone? When I received my unlocked Note 10 on the 21st, there was a new software update. Although the update didn't call out signal strength specifically, but you never know... After playing around with the device, I flashed it with T-Mobile firmware. I didn't have enough time to test cell signal, but haven't seen issues yesterday and today. The signal strength is on par with my Pixel 2 and S10e
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I am on Tmobile and also bought the unlocked (note+) version and ran the update. If you could be so kind, what does flashing the Tmo firmware do (and how do I do it)? Would this give me everything Tmobile puts on their phones? Is there a benefit to doing that? I am curious if that would help with the signal strength.

rosedog said:
I am on Tmobile and also bought the unlocked (note+) version and ran the update. If you could be so kind, what does flashing the Tmo firmware do (and how do I do it)? Would this give me everything Tmobile puts on their phones? Is there a benefit to doing that? I am curious if that would help with the signal strength.
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You just use Odin to flash TMobile firmware for note 10, you will have all TMobile bloatwares and features that built-in T-Mobile firmware. I believe you gain more signal bars. I also think you will be able to do video calling on your U1. I don't have note 10, still hang on with my note 9, N960U1.

rosedog said:
I am on Tmobile and also bought the unlocked (note+) version and ran the update. If you could be so kind, what does flashing the Tmo firmware do (and how do I do it)? Would this give me everything Tmobile puts on their phones? Is there a benefit to doing that? I am curious if that would help with the signal strength.
Click to expand...
Click to collapse
So if you flash T-Mobile firmware on your Note 10, you will gain few features:
1) Advanced Messaging - be able to see when person read your sms, when it was delivered or when person is typing a message. You can also send images/videos of a larger sizes about ~10MB. This will only work when you text people that have similar software or that use T-Mobile
2) Video calling will be built in to the phone dialer app - works with phones from T-Mobile that use similar software(LG, Samsung, Moto)
3) Will have 4G LTE wording in the status bar instead of just LTE or LTE+
4) T-Mobile logo on boot and sounds
5) Practically no bloatware - after flashing, during phone setup, you will be asked if you want to install 3 T-Mobile apps: Visual Voice mail, T-Mobile account app and Macfee antivirus - just don't check boxes if you don't need them.
The reason I flash my phones with T-Mobile firmware is that, before releasing they test the update so it would work better on their network and that I have T-Mobile

Charkatak said:
So if you flash T-Mobile firmware on your Note 10, you will gain few features:
1) Advanced Messaging - be able to see when person read your sms, when it was delivered or when person is typing a message. You can also send images/videos of a larger sizes about ~10MB. This will only work when you text people that have similar software or that use T-Mobile
2) Video calling will be built in to the phone dialer app - works with phones from T-Mobile that use similar software(LG, Samsung, Moto)
3) Will have 4G LTE wording in the status bar instead of just LTE or LTE+
4) T-Mobile logo on boot and sounds
5) Practically no bloatware - after flashing, during phone setup, you will be asked if you want to install 3 T-Mobile apps: Visual Voice mail, T-Mobile account app and Macfee antivirus - just don't check boxes if you don't need them.
The reason I flash my phones with T-Mobile firmware is that, before releasing they test the update so it would work better on their network and that I have T-Mobile
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Click to collapse
AWESOME! Thanks for the reply.
I have noticed something about my signal. It may show one bar but compared to my Note 9, so far, it is blowing it out of the water with internet access. The building I work in has a metal roof and typically that spells trouble for fast browsing. The 10+ seems to be accessing sites faster. However using the GPS this morning I could have sworn it told me it lost signal.
*edit*
Forgot to ask...when flashing the T-Mobile firmware does that trip Knox? Is that still a thing worth worrying about?

I haave two conflicting opinions on flashing tmo firmware.
Thing One.
The carriers lie to us. That's why the tmo signal is better. Not because it's better, it's probably a marketing directive. Resetting the Calc of bars shown to dbm is not optimizing anything. It's making its customers not see dead zones and drop outs. Even though you still have no access on the device.
Thing Two.
But what if I'm wrong. Is it impacting my battery life having computationally lower bars?
Oh the madness.
Sent from my SM-N975U1 using Tapatalk

I have zero bars now on N10 with T-Mobile band 66. Unfortunately I have no clue how to check bands on Pixel 3 phone, it gives be 4 bars of LTE

I have the same crap signal strength. My note 4 and 9 no probs. Changed sim card. Changed carrier, took phone To an authorized Samsung service center same problem. I find on Google that and saw how many others are having the exact same problem. The Samsung service center said they've been getting more and more calls on this problem and it's not a software issue it's a hardware issue. They told me there's not a hardware update, meaning there is not an antenna that can be replaced it's Built-in to the phone to where they couldn' change it out

flashprash65 : So are you telling us that we will never have a better signal than we currently have?
That we spent $ 1200 for a product that will never work properly?