yashsingh1/xdaforums huggingface dataset:
[Verizon Samsung Galaxy S6] milan03:
Ok, since now we have root, many users wanted to know if they can lock onto certain LTE frequency bands using Samsung's ServiceMode. So here is a quick guide.

ServiceMode is Samsung's proprietary Engineering Mode, built within the TouchWiz framework, readily available on International variants, and some domestic like T-Mobile. It allows us to observe the RF connection, change certain RF related settings, and lock our phones onto specific technologies and frequencies. Sadly, Verizon has been blocking user access to Engineering Mode for years now.

So in order to enable access to ServiceMode on Verizon GS6/Edge you'll need to:

- Download Root Explorer

- Navigate to /efs/carrier/HiddenMenu

- Use TextEdit to open it (not text viewer)

- Change the value to ON (upper case), Save and Exit

- Restart the phone

Once restarted you can dial:

*#0011# to observe the connection

If you want to lock your device onto a specific LTE band (13, 4, 2):

*#27663368378#

- UE Settings & Info

- Settings

- Protocol

- NAS

- Network Control

- Band Selection

- LTE Band Selection

Here you can force your phone onto a specific Verizon LTE Band (13, 4, 2), or use LTE ALL if you have VoLTE (Advanced Calling) enabled as this will eliminate the need for CDMA radios.

To go back to default, go through the same process but at Band Selection make sure to chose AUTOMATIC.

There are a lot more settings here, you can enable AMR WB on UMTS if you use T-Mobile so you can get HD Voice on their UMTS layer, etc... Carrier Aggregation has already been enabled, so no need to tweak that.

If you aren't sure what certain settings and values correspond to, it's better to avoid tinkering. You're responsible for your own actions.

If you find this guide useful, hit the thanks button. :good:
[Verizon Samsung Galaxy S6] Squintz:
Thanks for this.

So if you choose a LTE band, you'll be locked into 4G, and not able to connect to 3G or 1X?
[Verizon Samsung Galaxy S6] milan03:
Yes, that's correct. If Advanced Calling (VoLTE) has been enabled on your account, your voice calls will go through. Otherwise, make sure you select Automatic when you're done testing in order to get CDMA voice access.
[Verizon Samsung Galaxy S6] s197:
What's the benefit of this? Wouldn't the phone lock onto the highest strength band? Hope that doesn't come across argumentative, I really don't know how this stuff works.
[Verizon Samsung Galaxy S6] tlbland0426:
I locked mine to Band 4 and my crappy download speeds (2-4 Mbps) jumped to 21-44 Mbps. Went back to Automatic and it dropped back to 4 Mbps.
[Verizon Samsung Galaxy S6] milan03:
Typically the most popular roads with the most cars are the slowest, right? Now that Verizon has multiple lanes (LTE Bands), you can attempt to alleviate the congestion issue that you might be experiencing.

Also one of the side benefits of selecting LTE ALL (with VoLTE enabled on the account) at least in markets with solid LTE coverage, is the improved standby time, as the device isn't trying to activate CDMA radios.
[Verizon Samsung Galaxy S6] s197:
So what you're saying is if you are connected to a high traffic band, your phone won't switch you over to a less used one automatically? Is there some sort of app or setting that shows the traffic on each particular band?

I'm not so much concerned about cell standby since it doesn't seem to be impacting me for whatever reason but if I can get better download speeds, that's definitely something I would look into.
[Verizon Samsung Galaxy S6] milan03:
Well it's up to you to figure that out. I've put the guide out.
[Verizon Samsung Galaxy S6] lilvanmuzz:
Thanks
[Verizon Samsung Galaxy S6] xdadevnube:
Milan, can you try PCI cell locking (sector locking)?

Note 2 and Note 3 have the option in Service Mode but it doesn't work.

Also, I wonder if there is a provision to configure CA bands so that a desired configuration of uplink and downlink bands can be chosen.
[Verizon Samsung Galaxy S6] milan03:
PCI Cell lock has been disabled on every single Samsung phone that I can think of. The Menu is still there, but it's not actionable within ServiceMode.

As for forcing primary and secondary component carrier, that's typically set on the network side per cluster or per market basis. For example, in NYC market AT&T has CA set to Band 2+17 format, not the other way around. Can't be forced on the UE.

It would be beneficial for Verizon to have a wider bandwidth channel (band 4) set to be the primary as the upload isn't being aggregated and it's dictated by the PCC.
[Verizon Samsung Galaxy S6] xdadevnube:
Thanks,

I wonder if PCI lock is a feature only possible on a special radio firmware. Perhaps field techs are running an enhanced radio on their test phones not available to the consumer.

I recall the FCC docs show that the S6 has various band combinations for CA on the uplink. So Verizon isn't planning on using CA on the uplink?

I am very interested to know their CA strategy because I am usually in an area where download speeds are acceptable on Band 4, but the uplink is nearly nonexistant on Band 4.

I usually have to use a device without Band 4 support or else my phone often jumps to Band 4 and the upload is about worthless. I can force Band 13 on Samsung devices but then I lose CDMA.

I actually would prefer most of the time:

Downlink: Band 2+4+13 OR 4+13

Uplink: Band 13

Didn't want to hijack the thread, I can edit post and take it to PM if you prefer.
[Verizon Samsung Galaxy S6] milan03:
I know for a fact that PCI lock is something that RF Field Engineers have access to, but they don't really use ServiceMode, or use it for a quick glance at the values. They use a third party software that directly reads and controls Qualcomm baseband, and that Android piece of software costs $5,000+ per license, and it's tightly integrated with the IMEI of that test phone. There are thousands of KPIs that can be read with it, or logged for post processing and analysis at the later time.

FCC only performs tests on the uplink to make sure the radiated power at the device under test is within the safe range, and since the existing Release 10 network infrastructure doesn't support Carrier Aggregation on the Uplink (only Downlink), FCC only lists the potential downlink CA combinations for the device under test. They actually don't test the downlink at all, and it doesn't mean that the operator will have all of those combinations enabled on the network side.

Furthermore, at this time there aren't any operators globally with a commercial network capable of uplink CA, that includes Korean operators. That should change with proliferation of Category 7, 10, and 12 commercial User Equipment at some point in the future, but commercially seeded user devices with Samsung, Qualcomm RF solutions (like S6, M9, etc) are only category 6, 9, not supporting uplink CA.

Your uplink issue may very well be caused by some kind of interference at your Serving Cell Site or clustered area. Which cellular market is it?

In my market I've seen peak uplink rates just under 40Mbps on Band 4 in a 20MHz channel, typically in the 20's.
[Verizon Samsung Galaxy S6] PsyberEMT:
As an amateur radio operator and general mobile telecom junkie a million thanks for this! I love having control over the LTE band I'm camping on. I've been in Denver all week and for whatever reason in downtown Band 4 was slammed (1-4 meg down) but 13 was wide open (20+ down), yet the phone insisted on camping on Band 4. Whambamthankyoumaam, hello Band 13 :D.
[Verizon Samsung Galaxy S6] Legend35:
I have an International Galaxy S6 (Europe) SM-G920F and I can't open SERVICE MODE (for Band Selection, etc)

Code *#27663368378# doesnt' work, and directory /efs/carrier/ doesn't even exist (tried to make one, but doesn't help)

With my previous Galaxy S5, I used to do:

dial *#0011#

menu -> back

menu -> insert key ... then type: Q0 and press ENTER

Now, with S6, only works *#0011# (Read Only), but I cant go any further...

Please help me and every European people with Galaxy S6 :crying:
[Verizon Samsung Galaxy S6] milan03:
Just type in *#197328640# for main menu or *#2263# to lock to a freq band directly.

Let me know.
[Verizon Samsung Galaxy S6] Legend35:
Just tried both... they don't work! :crying::crying::crying:
[Verizon Samsung Galaxy S6] milan03:
Is that 920F that you're using?
[Verizon Samsung Galaxy S6] Legend35:
Yes of course, european SM-G920F, I live in Italy. I've tried with brand, no-brand firmwares, but none of them works

If you found those codes on internet, they must be wrong and nobody checked them before publishing...

I want to lock my phone in 3G+4G but I can't... that's so bad! :(
[Verizon Samsung Galaxy S6] milan03:
Here is the thing, the ServiceMode dial codes I'm giving you is something I've been personally using over the years. Codes also work just fine on 920T, 920W8, 920V.

You could try digging a bit into the file structure, or check out international S6 subforum. Good Luck!
[Upgrading, Modifying and Unlocking] Amedeus:
Hi

Very exited to get an almost new M700 yesterday but after several hours [now days] attempting to use HTC_Trinity_SIM_CID_Unlock_v1, I was sooooo dissapointed to find it did not work for me!!

Basicically the m700 freezes at the bootloader three colour screen when running the AUTO_Unlock_v1.bat and am not able at all to sync via activesync 4.2 after that.

Have to soft reset m700 and back to square one.. tried the procedure as described by Pof [batch file and manual] but no joy.

HELP! Any idea why this is happening what I can do? my background is in electronics engineering/ computers and it frustrates me that others seem to be able to unlock their M700 and i cannot !!!

Any advice help will be greatly appreciated.

many thanks to all.

Amedeus
[Upgrading, Modifying and Unlocking] GSM MIND:
mate u missed that when ur phone come to in three colours then run updateutility after update phone well need to reset and put unlock in ur phone and run it

all should be okey

REGARDS

GSM MIND
[One (M7) Q&A, Help & Troubleshooting] killa cam:
I have been running an InsertCoin ROM for about a year now, and it is driving me insane. I rooted this phone and put this ROM on as soon as I got it, and now that I come back to XDA for an update, everything is changed and I am a bit confused.

When I go onto Venom ROM website, it says I need to update firmware to HTC 5.0.2. However, I can't tell which firmware I am even on, and I feel like a complete dumb ass. Here is relevant info for my phone, I want to update to a new rom and TMo's latest radio. If someone can real quick throw me some bulletpoints, i'll figure out the rest. THANK YOU!

Android Version 4.4

HTC Sense Version 5.5

Software number: baadnewz's InsertCoin 7.0.3 ODEXED

HTC SDK API level: 5.65

Kernel Version 3.4.10-g31f7883 root@abm007 #1 SMP PREEMPT

Baseband: 4A.14.3250.15_10.34.1150.02L

Build Number: 4.06.1540 CL283265 release-keys

*** UNLOCKED ***

M7_UL PVT SHIP S-OFF RH

CID-T-MOB010

HBOOT-1.44.0000

RADIO-4A.14.3250.15

OpenDSP-v26.120.274.0202

eMMC-boot

May 3 2013,20:01:28:-1

for what its worth, i get that red warning on boot splash saying that this build is for development purposes. I think what I need to do, is first flash the latest stock tmobile rom, and then flash venom rom over it.. does this sound right?
[One (M7) Q&A, Help & Troubleshooting] raghav kapur:
In most cases, flashing the new radio does not particularly make a difference. Most roms will flash even on older radios. BUt, it is recommended to flash the newest firmware.

Your firmware is the oldest one for the M7. It is the 4.1.2 Jelly Bean firmware. The HBOOT version gives away the firmware version FYI. You have the option of updating the TMobile radio version, or since you're S-OFF, flashing the latest 5.0.2 international firmware. The TMobile firmware is slightly older as i can't find the latest one, but it should work. Link is :

http://xdaforums.com/htc-one-tmobile/development/radio-t-mo-radio-4t-28-3218-04-6-10-531-t2893220
[One (M7) Q&A, Help & Troubleshooting] killa cam:
Thank you for the help!!! :) :)

So I just need to flash this RUU and then I can install ViperROM? Sounds easy enough :)

I guess since this is going to delete everything, i'll start the picture backup now...

THANK YOU!!!!!!!
[One (M7) Q&A, Help & Troubleshooting] killa cam:
I forgot to add, I think i need their latest radio or something, because my phone is unable to connect with TMobiles new 4g range booster. Hopefully this fixes that probelm, as well as the battery life issue that cropped up :)
[XDA Assist] 1735020290:
Hi guys,

I have a Samsung Galaxy S3 GT-i9300 rooted and wiped.

Today i had a problem and i wanted to wiped and reinstall the ROM and in that moment my phone was permanently in Downloading Mode. Now Odin can´t recognized my device. If I achieve that i will have no more problems because I had have same similars problems in past but before I had not problems never with Odin.

I have Odin 3.07 and i had try to install the drivers with Kies, without Kies, with severals internet files... I tried with differents USB cables, diferents USB ports, and diferents PCs.

I don´t know what more can I do...

Please, Help!!!
[XDA Assist] jd1639:
Hi, thank you for using XDA Assist. When in download mode and your device connected to your pc go into device manager. Do you see an icon with a yellow exclamation mark? If so, right click on it and go to where it lets you choose a driver from a list on your computer. Choose Android adb composite interface. See if that works. If you need further help ask in your device specific forum, http://xdaforums.com/galaxy-s3
[Galaxy Tab 4 Q&A, Help & Troubleshooting] thumudom:
I don't see my problem in the posts. Why is it necessary to tap the app then double top the screen to get to view or use that particular app? Is there something that I can change in settings? My wife get frustrated when trying to play Mahjong when she taps coin (forgot what is called) then double tabs screen then proceeds to the similar coin, taps it then double taps the screen in order to play.
[Galaxy S6 Q&A, Help & Troubleshooting] bojanv55:
Just today I went in 2 stores, and checked the compass on all of the Demo units (and 2 retail units I have). When I turn on the device for the first time, compass (magnetic sensor is not calibrated), but when I go to *#0*# and then sensors, and do few phone movements trough the air, magnetic sensor becomes calibrated (number 0 and red line becomes number 3 and blue line in black circle). After this, all is OK until I restart the phone. After this, if you go again to the sensors menu, magnetic sensor lost it's calibration details.

I read somewhere that I should delete ms3c_yamaha.cfg file from /data/system/ folder and restart the phone, but this doesn't help. I also read that I should run sensorcalibutil_yamaha - I didn't have this binary on my phone and then I downloaded it from the github. When I try to run it from the adb shell, i get:

shell@zeroflte:/ $ su
su
root@zeroflte:/ #
C:\Program Files (x86)\Minimal ADB and Fastboot>adb shell
shell@zeroflte:/ $ su
su
root@zeroflte:/ # /system/bin/sensorcalibutil_yamaha
/system/bin/sensorcalibutil_yamaha
=====================================
Sensor Calibration Utilities
Copyright (c) 2009 Yamaha Corporation
=====================================
Starting calibration utilities...

Ms3AxesDrvGsInit failed
calibration utilities failed
1|root@zeroflte:/ #

Does anybody know how can I save calibration data that will be preserved between phone restarts?
[Galaxy S6 Q&A, Help & Troubleshooting] InVez:
i tried this : factory reset and than calibrate it, didnt turned my phone off and checked google maps. Arrow was good and location.

before i had problems with calibration.
[Galaxy S6 Q&A, Help & Troubleshooting] bojanv55:
i tied factory reset but no luck. after re-calibration everything seems fine, but only until I restart the phone. after this, calibration settings are lost, and I have to re-calibrate.
[Galaxy S6 Q&A, Help & Troubleshooting] Japultra:
There's a couple other threads about this issue floating around actually. Someone said that Samsung has accepted this as a flaw and you can exchange the phone. Another person said that if you're in the maps app, just calibrate your phone then and there (by rotating the phone on three axes) and the compass will work.
[Galaxy S6 Q&A, Help & Troubleshooting] misiek_to_ja:
Look here: http://xdaforums.com/galaxy-s6/help/compass-calibrated-t3089341

Few other people report the same problem. In fact I checked few other devices and they were all suffering from the same issue. That's why I doubt it is hardware fault, although DevonSloan wrote Samsung in Best Buy says it is a hardware problem: http://xdaforums.com/galaxy-s6/help/samsung-acknowledges-problem-compass-t3105197/

I have to ask him if he exchanged the phone and if it helped.
[Galaxy S6 Q&A, Help & Troubleshooting] DevonSloan:
I replied in the other thread, but I'll just say it here as well - I just refrain from rebooting my phone as much as I'd like to. It's easier than me going to the hassle of going to a Sprint store and jumping through whatever hoops they will have for me.
[Galaxy S6 Q&A, Help & Troubleshooting] bojanv55:
still a problem

I've been in all of the shops in my town. Each edge & s6 has this problem. I checked if this is the case on s4, but NO - s4 is saving calibration data between the restarts...

I assume there must be some fix that will make sensor use saved data on restart.
[Galaxy S6 Q&A, Help & Troubleshooting] ayoraider07:
Well, my S6 edge also suffers from this defect/annoyance. . . I'm assuming nearly every S6 owner is dealing with this... If ANYONE has an S6 that maintains compass/magnetic calibration after a reboot, please let us know(carrier & model# with build/purchase date) so we can attempt to exchange our phones! . . . or kindly post the fix (if software related) ! !
[Galaxy S6 Q&A, Help & Troubleshooting] misiek_to_ja:
What is funny I replaced my device because of other issue (camera app closing while starting from lock screen with fingerprint lock activated). It turned out it did not solve neither the camera app issue nor the compass calibration issue. It seems Samsung has to deliver some software patches...
[Galaxy S6 Q&A, Help & Troubleshooting] jproy12:
Good to see that I'm not crazy :) I also have the problem with the calibration not staying and google maps direction arrow not pointing correctly.
[Galaxy S6 Q&A, Help & Troubleshooting] aegeuss:
I have a similar problem; I have to calibrate unfortunately again and again in navigation apps.
[Sony Cross-Device Development Themes and Apps] macblaze:
Macblaze-Xperia-Keyboard-6.6.B.0.11 for ALL Lollipop – 5, 5.0.1, 5.0.2, 5.1, 5.1.1 Kitkat 4.4.4 devices

Yes, It is working in Android M preview too…

No need root, JUST DOWNLOAD AND INSTALL as normal Apk

Dictionary and all languages working

Emoji / Smilies working​

Instructions:

1.	Download

2.	Tick Unknown sources

3.	Install

4.	Settings – Language and Input - Default keyboard – Enable Xperia Keyboard

5.	Settigs – Language and Input - Xperia Keyboard – Personalization guide – Setup.

6.	Choose your languages – Setup - Working

Note ; If you are using stock Xperia Rom it will not install because it is already installed as a system apk, and you need root and uninstall and reinstall bla, bla…​
[Sony Cross-Device Development Themes and Apps] n_boy86:
[MENTION=6527522]macblaze[/MENTION] is only on rom cause i cant uninstall a system app from phone without root, i cant even install this casue the phone says not installed :( , be very happy when i saw this , but it not working : /so is it rom or stock fw , regrds
[Sony Cross-Device Development Themes and Apps] venom007:
pls pls pls port it for jellybean 4.2.2
[Sony Cross-Device Development Themes and Apps] macblaze:
Check here already ported TRY...

http://xdaforums.com/showthread.php?t=2786651
[Sony Cross-Device Development Themes and Apps] anakdayak:
Hi OP can push to system app with correct permission?
[Sony Cross-Device Development Themes and Apps] macblaze:
I am not understanding, Why should we push it to system app? what benefit we will have?

It is working very smooth, all the dictionaries are working, swift key working, smilies and emoji working.

Everything working and what else...
[Sony Cross-Device Development Themes and Apps] theduke7:
how to uninstall Xperia Keyboard...this isn't possible without root??? please explain.
[Sony Cross-Device Development Themes and Apps] theduke7:
It doesn't install normally

Check image
[Sony Cross-Device Development Themes and Apps] n_boy86:
no i dont understand either . i dont know how it could work for many people , root is required very often . same here not installed no help from the dev , only read carefully before u post, its very annoying when we want it to work, not easy when he is no up for any support
[Sony Cross-Device Development Themes and Apps] macblaze:
Which phone you are using and lollipop version?
[Sony Cross-Device Development Themes and Apps] macblaze:
Because you don't know about installing apps....:p
[Sony Cross-Device Development Themes and Apps] n_boy86:
i know how that but this no [MENTION=6527522]macblaze[/MENTION] and u are freaking rude , why u port stuff than is rude to people who want ur help? worst service , :eek::$:s

if u are so good help then, cause i have ever could install official keyboard app , without root and not be so bad supported ? when ask for dev help , u are a developer and u want to have credit for your work yes but not if u not helping when problem when i can read , i can flash rom , i can root , i can flash zip , so not came and say i can´t install apps ,
[Sony Cross-Device Development Themes and Apps] macblaze:
My friend you are not asking any help, just posting your doubt.

If others are able to install and uninstall the same, think yourself the problem is with you or with the app?

I can port and write the instruction only!
[Sony Cross-Device Development Themes and Apps] n_boy86:
[MENTION=6527522]macblaze[/MENTION] , thia answer was a little bit nicer, and i dont ask for help the fact is it is all that i done in 2 days, the problem is in the installation / uninstallation and yes me, cause it no go i cant even get to unistall this old version , so please help , now i ask kindly for support ., please
[Sony Cross-Device Development Themes and Apps] macblaze:
M..... which phone and version you are using?
[Sony Cross-Device Development Themes and Apps] n_boy86:
[MENTION=6527522]macblaze[/MENTION] ,. thank u:), i m using t2 ultra with 5.0.2 :) regards
[Sony Cross-Device Development Themes and Apps] macblaze:
See, already you are using the latest version and it is Xperia phone you cannot uninstall the default keyboard without root...

Actually you don't need this keyboard it is already there... :D
[Sony Cross-Device Development Themes and Apps] n_boy86:
[MENTION=6527522]macblaze[/MENTION]. no the 6.6.b.0.11 has . t9 keyboard . i have 6.6.a.0.30 now , thats becuase i want this :) , is it possible, help me then , man, okey so u mean that if i didnt have a xperia then it was able to work, or is it able to work now also:) , thank u any way and im sorry , but having little help is burning my brain :(
[Sony Cross-Device Development Themes and Apps] macblaze:
Ha Ha, I am not understanding why you are so mad about it, but you know Xperia keyboard doesn't have T9 keyboard or no more support, now it is called Portrait keyboard!! may be wants that, it is too in your version, enable it....

Settings-Languages and input-Xperia keyboard-portrait keyboard-phonepad....
[Sony Cross-Device Development Themes and Apps] n_boy86:
okey thank u , now i am happy , but not happy that i not could get this:)
[Sony Cross-Device Development Themes and Apps] macblaze:
No worry, There is nothing different between these two version, only the version number no performance difference or new languages support, Be happy. ;)
[Sony Cross-Device Development Themes and Apps] n_boy86:
but it is phone layout t9 predictive layout is on 0.11 , this i have had not . thats why little bit . sad:)
[Sony Cross-Device Development Themes and Apps] notiflux:
Very nice, thank you for sharing! :D