In Settings>Applications>Manage Applications there is "Field Test" listed right below "Email"
Does anyone know how to start the field test mode?
It is also under system/app/FieldTest.apk.
Search FieldTest in this page:
http://modmygphone.com/wiki/index.php/Android_File_List
Download the AnyCut app from the Market. Then return to your home screen, and long press > Shortcut > Any Cut
Then choose 'Activity' and scroll down to Field Test. Accept it, and run it from Home.
Done.
It seems to have quite a few 2G/3G/etc. status information options, as well as tests. I am not sure what most of them do, so I haven't messed with it much.
i messed with some..
I messed with most all of them alot didn't seem to work and all of them I understood yery little but you can get lists of you neighbor cells from one of them...
bhang
This Application also Exist in Nokia Symbian Devices and Apple iPhone and it very very useful for Diagnostic Pepose of Radio Frequency
But... does it works??? I am VERY interested to this application!!!
It work perfectly
field test modes
ALL phones have a fieldtest mode, it test signal stregnth, shows neighbor cell sites.
Your phone is constantly looking for cell sites that neighbor the one your in to make the best decision on which to hop to when the one your on is fading out, and your phone never knows which way you might travel.
There is tons of other stuff this one is the most complex and info rich test mode.
Alas most of it won't make any sence but it looks cool. I'm still playing with it and will post anything I figure out.
If there is a wireless site tech that could shed some light on the more useful bits of info.
Bhang
Does the WCMDA page work?
On my phone, the RxLevel is always -64db.
havent messed to much
If testing a wcdma you would have to be under a tower equipped with that technology, it looks to my untrained eye that the g1 has the hardware to work just about anywhere, it works in lots of different countries AS-IS, with that and the vauge definitions of the radio in the specs from htc/goog/android.
Its always easier to make universal hardware and just cripple it where necessary, hopefully open source will open the dream to as many nets as possible.
So if you were in an area with the wcdma and it was in use you'd see stuff in that part of the fieldtest.
Just like the 3g stuff shows nothing in the gprs tower that serves my house, and full 3g coverage is less than 10mins away but seperated by the chesapeake and delaware canal, and for some reason everything takes forever to come to my side of the canal, just got cable modems 2 years ago and fios about 6 months, tmob has no time table for my upgrades but all exsisting gprs towers are first on the list to go...
Bhang
Could you please help to verify the RxLevel on the WCDMA page is working when the phone is in 3G mode?
I have tested several times, it doesn't work. I am sure the phone was in 3G mode, and I can see some other 3G related pages were working that time.
Neither the 3G DCH page works for me.
I am still on the RC19 version though.
wcdma vs hspda?
blues said:
Could you please help to verify the RxLevel on the WCDMA page is working when the phone is in 3G mode?
I have tested several times, it doesn't work. I am sure the phone was in 3G mode, and I can see some other 3G related pages were working that time.
Click to expand...
Click to collapse
HSPDA maybe?
I gotta do more reading on the 3g stuff, Im an advanced hobbiest on the older tech but I dont know alot about any 3g
Where I can download AnyCut? I am from Italy and I have heard that I don't have access to android market, so how can I find the AnyCut application to install and use on my G1?
P.S. The G1 is on the way, I haven't it yet...
market only
AFAIK, the apps aren't available yet as .apk (kinda like a .jar afaik)
If they were we would probably be able to use the sd as a place to store apps
Bhang
If you have a data plan, you should have access to the market I'm pretty sure. Although I could be wrong.
you might have to run the field test while having an ACTIVE connection for some of the values to actually show up. At least on the iPhone that was the case
blues said:
Could you please help to verify the RxLevel on the WCDMA page is working when the phone is in 3G mode?
I have tested several times, it doesn't work. I am sure the phone was in 3G mode, and I can see some other 3G related pages were working that time.
Click to expand...
Click to collapse
blues doubtful that wcdma is working, GSM carriers do not use wcdma its UMTS for 3g with T-Mobile/ATT
korndub said:
blues doubtful that wcdma is working, GSM carriers do not use wcdma its UMTS for 3g with T-Mobile/ATT
Click to expand...
Click to collapse
UMTS uses WCDMA as its air interface (whereas the 2G GSM networks use TDMA).
i stand corrected.. thanks for the education.
The empty rx level in the WCDMA page can still be retrieved from other sources like the java api.
The worst thing is the 3G DCH Status page is totally blank. None of the ECNO values can be seen. Not sure how useful this is for tmobile people, if they want to verify the 3G network performance.
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:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
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?
Squintz said:
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?
Click to expand...
Click to collapse
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.
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.
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.
Sent from my SM-G925V using XDA Free mobile app
s197 said:
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.
Click to expand...
Click to collapse
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.
milan03 said:
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.
Click to expand...
Click to collapse
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.
s197 said:
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.
Click to expand...
Click to collapse
Well it's up to you to figure that out. I've put the guide out.
Thanks
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.
xdadevnube said:
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.
Click to expand...
Click to collapse
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.
milan03 said:
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.
Click to expand...
Click to collapse
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.
xdadevnube said:
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.
Click to expand...
Click to collapse
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.
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 .
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:
Legend35 said:
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:
Click to expand...
Click to collapse
Just type in *#197328640# for main menu or *#2263# to lock to a freq band directly.
Let me know.
milan03 said:
Just type in *#197328640# for main menu or *#2263# to lock to a freq band directly.
Let me know.
Click to expand...
Click to collapse
Just tried both... they don't work! :crying::crying::crying:
Legend35 said:
Just tried both... they don't work! :crying::crying::crying:
Click to expand...
Click to collapse
Is that 920F that you're using?
milan03 said:
Is that 920F that you're using?
Click to expand...
Click to collapse
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!
Legend35 said:
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!
Click to expand...
Click to collapse
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!