hey, I own a i9100T (I recently discovered about the T at the end) and I'm trying out a few modems to find out which one gives me the best reception and battery times.
my question is does the 3G/H/H+ icon on the top mean anything about the quality of the connectivity or reception?
I remember seeing some 3G icon when I was on GB, which I haven't seen on ICS rom/modems (in my home, haven't tried outside).
with some modems I tried, I've seen H, others H/H+["USDPA 7.2mbps"], and with GB modems, I've seen more 3G ["UMTS 384kbps"]. does this mean I get better connectivity with 3G and I should stick with this one, or is it just semantics?
or perhaps the 3g is the worse of the two, as the 'noted' speeds would imply? (i'm leaning towards this answer...)
Thank You!!
edit:
found out that while most of the modems give me the same speed (may have something to do with network speed limits), I have different connections using other modems.
the most stable H+ connection is with the Thai TDCLP3
H connection is with most of ICS modems, including 4.0.4 ones
3G (UMTS) connection is stable with GB modems.
as I understand it now, H+ > H > 3G, right? (as to icons. HSPA > HSDPA > UMTS)
tech details:
I'm on an XWLPD rom as a base (w/ CF 5.5).
I might be on a 2MbPS limit contract, not sure about it.
now, when I've tested the various modems, most of them (except the original XXLPW and KP8 modems) gave me approx. the same results of about: 1950 dl, 940 ul, ping 50-100.
(LPW and KP8 gave me weird ul of about 50KbPS)
all in the same location, about the same time, and tested at least 2/3 times using the same app [speed test].
the modems I tried:
XXLPW (low ul)
XXKP8 (low ul)
XXLPX
XXLQ6
LQ5
TLLJP8 (branded Pelephone, IL - stock 4.0.3 modem on my network)
TDOLP4 (4.0.3)
TJJKI2 (one in which I've seen the 3G icon, but GB modem, 2.3.5)
TJJKF3 (same as TJJKI2, but a bit lower numbers, GB modem, 2.3.3)
TDCLP3 (4.0.3)
found most of them to be pretty much equivalent as to dl/ul speed. haven't tested other aspects seriously.
Mbps > kbps.
H+ > H > 3G
Related
I have a Samsung Galaxy S 2 (euro) currently running
- KJ1 frankenstein rom
- XEU CSC
- KI3 modem
- speedmod 2-13 kernel
One observation is that the phone tends to cling on to very low 3G signals. Arguably this isn't a problem per se - some may argue it's a good thing -- but I can't help thinking it's not the best for battery life.
This is especially true at work where I do have wifi. At home a 3G microcell solves the signal issue.
I was wondering if people found other modems like KI4 - or even earlier ones tackle this scenario differently. I can imagine never ending debates over which is better or worse of course.
I have tasker and thought about setting that to flip to 2G when wifi was detected, but it seems as if that option doesn't work on the SGS2 even with a rooted environment.
Maybe it's not really an issue...
You can check in in SamsungServiceMode and then do network priority I guess. All modems by default are set to hang to UMTS then if not switch to GSM. There's an option there however to do GSM first but i'm thinking it's more like if super strong UMTS is available it'll go there instead of staying on GSM.
Hi i have vs 2.3.5 offical kies android with root access and i have baseband version xxKI4 is there a newer modem version for this one because my current modem is realy not stable. Bad reception where i didn't have that with 2.3.3
I have a Beglian phone but willing to try more then one recent good modem
What is your carrier. Maybe try match the modem to the same recommended by the carrier?
Also what is your model; 9100, 9100T, 9100G, ......
Sent from my GT-I9100 using xda premium
I9100 and Proximus
Try some of these modems flashable through CWM Recovery. They are generic European XX.
[MODEM] Main modem XX versions flashable through CWM
I haven't found anything newer, but these only take a moment to flash and try.
Before you flash, observe current; signal strength and quality (-dbm asu) and connection type E, UMTS, H etc....... in phone menu / settings / about phone / status , and then compare after you flash each modem. Be aware of any increase in battery drain.
Edit: Also Check DL & UL speeds with speed tests app
Hope this helps
good tips thx
they all act around 91-95 and one 101 dbm what is best, as low as possible?
Usually as low as possible will give better and more stable reception, and also less switching between 2g (Edge) & 3g (UMTS, HSDPA, HSPA).
Your figures for signal strength are extremely poor.
Maybe nan-backup your current ROM, and re-flash a 2.3.3 backup if you still have it and compare, ensuring you then re-flash the modem used with your 2.3.3 ROM after.
Were your figures for 3g connection or 2g? 2g will nearly always give better signal.
Sent from my GT-I9100 using xda premium
Coming from a HTC Desire, I bought a 6 month old Galaxy S II off a colleague.
I used to run CM7 on the Desire, and was happy with it. So I wanted to install it on the Galaxy as well.
Figuring out Odin and installing CWM was fairly easy, so I was set up with CM7 in no time.
The issue I have is that no matter what modem I use, I can't get a reliable cell signal out of my phone. I've tried some (10ish) different modems from this page.
All of them get 'emergency calls only' sometimes, and dBm values of -95 at best, sometimes going over -106 before dropping connection (emergency calls only).
Signal bars usually stay at 2/4.
If I have connection, I do seem to be able to max out my 3G connection (capped at 1Mbps by the operator) with some modems, but not all.
After restoring stock firmware, I get -77dBm and better, 4/4 signal bars most of the time.
Stock firmware uses XXKE7 modem.
When I tried to use that modem in CM7, I got the same bad results.
I am in Belgium on the Mobile Vikings carrier, which uses the BASE network.
Any ideas on how to troubleshoot this problem?
Schuppe said:
Coming from a HTC Desire, I bought a 6 month old Galaxy S II off a colleague.
I used to run CM7 on the Desire, and was happy with it. So I wanted to install it on the Galaxy as well.
Figuring out Odin and installing CWM was fairly easy, so I was set up with CM7 in no time.
The issue I have is that no matter what modem I use, I can't get a reliable cell signal out of my phone. I've tried some (10ish) different modems from this page.
All of them get 'emergency calls only' sometimes, and dBm values of -95 at best, sometimes going over -106 before dropping connection (emergency calls only).
Signal bars usually stay at 2/4.
If I have connection, I do seem to be able to max out my 3G connection (capped at 1Mbps by the operator) with some modems, but not all.
After restoring stock firmware, I get -77dBm and better, 4/4 signal bars most of the time.
Stock firmware uses XXKE7 modem.
When I tried to use that modem in CM7, I got the same bad results.
I am in Belgium on the Mobile Vikings carrier, which uses the BASE network.
Any ideas on how to troubleshoot this problem?
Click to expand...
Click to collapse
I'm not sure if you have to tinker with the phones APN settings there in Belgium. Sometimes that is the way to troubleshoot poor data connectivity.
Google "apn settings" and the name of your carrier and see what you can come up with.
Other than that I'd just suggest trying different modems. Hope that helps
Schuppe said:
Coming from a HTC Desire, I bought a 6 month old Galaxy S II off a colleague.
I used to run CM7 on the Desire, and was happy with it. So I wanted to install it on the Galaxy as well.
Figuring out Odin and installing CWM was fairly easy, so I was set up with CM7 in no time.
The issue I have is that no matter what modem I use, I can't get a reliable cell signal out of my phone. I've tried some (10ish) different modems from this page.
All of them get 'emergency calls only' sometimes, and dBm values of -95 at best, sometimes going over -106 before dropping connection (emergency calls only).
Signal bars usually stay at 2/4.
If I have connection, I do seem to be able to max out my 3G connection (capped at 1Mbps by the operator) with some modems, but not all.
After restoring stock firmware, I get -77dBm and better, 4/4 signal bars most of the time.
Stock firmware uses XXKE7 modem.
When I tried to use that modem in CM7, I got the same bad results.
I am in Belgium on the Mobile Vikings carrier, which uses the BASE network.
Any ideas on how to troubleshoot this problem?
Click to expand...
Click to collapse
It is the open source drivers CM based roms use. I see the same on every device I have run CM based roms on. The generic drivers have less radio and wifi signal strength. They don't use the built in hardware to the Max like OEM drivers do.
Schuppe said:
Coming from a HTC Desire, I bought a 6 month old Galaxy S II off a colleague.
I used to run CM7 on the Desire, and was happy with it. So I wanted to install it on the Galaxy as well.
Figuring out Odin and installing CWM was fairly easy, so I was set up with CM7 in no time.
The issue I have is that no matter what modem I use, I can't get a reliable cell signal out of my phone. I've tried some (10ish) different modems from this page.
All of them get 'emergency calls only' sometimes, and dBm values of -95 at best, sometimes going over -106 before dropping connection (emergency calls only).
Signal bars usually stay at 2/4.
If I have connection, I do seem to be able to max out my 3G connection (capped at 1Mbps by the operator) with some modems, but not all.
After restoring stock firmware, I get -77dBm and better, 4/4 signal bars most of the time.
Stock firmware uses XXKE7 modem.
When I tried to use that modem in CM7, I got the same bad results.
I am in Belgium on the Mobile Vikings carrier, which uses the BASE network.
Any ideas on how to troubleshoot this problem?
Click to expand...
Click to collapse
you can try to flash this rom ----http://bbs.nduoa.com/android_gphone_thread-227339-1-1.html
你可以刷这个试一试 这是一个中国朋友修改的 cm7 rom 估计会解决你这个问题
sunrundong said:
you can try to flash this rom ----http://bbs.nduoa.com/android_gphone_thread-227339-1-1.html
你可以刷这个试一试 这是一个中国朋友修改的 cm7 rom 估计会解决你这个问题
Click to expand...
Click to collapse
I would not advice this.
I have an SGSII on Telstra running darkyrom XXLPQ with KH3 modem. I've got an issue where data works fine on H+, but whenever the phone drops back to 3G I get absolutely nothing. I've tried disabling fast dormancy etc, but that just seems to reduce how often it falls back. Is there a modem I can use or a tweak that will let it get data on 3G as well as h+?
LethalCorpse said:
I have an SGSII on Telstra running darkyrom XXLPQ with KH3 modem. I've got an issue where data works fine on H+, but whenever the phone drops back to 3G I get absolutely nothing. I've tried disabling fast dormancy etc, but that just seems to reduce how often it falls back. Is there a modem I can use or a tweak that will let it get data on 3G as well as h+?
Click to expand...
Click to collapse
I think you are better off on T-model modem, like DVKF2 by telstra as that will work on your I9100T model best.
I have the same problem on stock 2.3.4, xeu. But it just about never drops back to 3g in Melbourne. So haven't bothered with telstra modem yet.
Sent from my GT-I9100 using xda premium
I have a feeling you don't understand this very well and if I'm wrong I'm truly sorry. Either move to an area that you know does not have hspa coverage (otherwise known as 3g+ or 3.5g or h+ or 4G in North America depending on the phone model,manufacturer and provider) but rather only 3g and test there and come back to us or disable hspa in hidden settings (phone control/nas control/hspa control/choose r99 hspa off),which should disable hspa/hsdpa and hsupa and test and come back to us. That should give you data while 3g symbol is lit at reduced speed of course.
Right now all you seem to notice that when you engage data it is h+ and when it falls back to 3g, the symbol is only for voice over 3g therefore no data arrows.
Yeah, I'm talking about when I'm I'm an area that has poor hspa coverage and it drops back to 3g. Btw, my old xperia had no problem getting hspa in these same areas, so my radio performance is generally pretty bad with the sgs2.
Try all the I9100T modems until you find one that works well for you; they do generally work better with the I9100T than I9100 modems. And if that doesn't work, then you might as well try all the I9100 modems.
I've got an I9100T & found there's 2 or 3 I9100T specific modems that I get great signal strength/data speeds with (and granted 1 I9100 modem), and the rest are ordinary for me.
There is no simple fix for this. It's a trial and error thing. Unless you want to spend hours on the phone to your telco for probably zero result ?
LethalCorpse said:
Yeah, I'm talking about when I'm I'm an area that has poor hspa coverage and it drops back to 3g. Btw, my old xperia had no problem getting hspa in these same areas, so my radio performance is generally pretty bad with the sgs2.
Click to expand...
Click to collapse
Threw me off, because of mentioning 'fast dormancy'.
Good that I apologized in advance then.
I would still recommend testing it the second way I suggested just to see whether it works at all. I also sometime end up in an area that while seeming to have full strong signal, due to a congestion at a peak and other factors, has no or very little data throughoutput (this being in canada).
As suggested by others, testing other modems may help as well.
Don't even get me started with sgs2 and nokia's regarding radio.
Just curious as to what speeds other people are getting on 3's network in London. Phone used to have a very nice 3-5mbps down on average until this month. Now I'm getting 0.4 - 0.6mpbs down on average. Tried the NEKF2 modem that was optimised for 3's network on gingerbread. Then I tried the NELP2 modem bundled with their ICS rom.
ran a quick speedtest for you.i get ping 239ms 3452 download and 2853 upload, sat here in st johnswood using ki4 modem and cm9 nighty....