yashsingh1/xdaforums huggingface dataset:
[Nexus S Q&A, Help & Troubleshooting] assassin504:
hi all ,

I have some of the problems described here too.

Fortunately I don’t have connection problems, and from reading this thread it seem the nexus s is by default set to turn wifi off when the screen goes off.

This can be sorted the following info from knytphal

My main problem is wifi range/signal strength. My signal drops by one to two bars just standing about 3 meters from my router. I no longer have any signal in rooms where my desire was downloading at 8mb/s.

This is not good, as I heavily rely on wifi in my home and find it even difficult to play a 2min youtube vid because there is no wifi signal in that room. As a result this may be a deal breaker for me.

I have read this maybe due to hardware limitations (ie. low power wifi chip), is this true?

If so can this be corrected by software updates?

Your responses and opinions are appreciated. Thanks
[Nexus S Q&A, Help & Troubleshooting] Tuigje:
Hi,

not sure whether this helps or not, but let's try:

I have a Nexus S which came with the *KB3 radio driver.

It's rooted. With original kernel (2.6.35.7-g*) WiFi works excellent.

The WiFi works with neither

netarchy-nexus-1.3.0.0-cfs-2.3.3

nor

voodoo-only og-ns-STK-ogext4-VS-1.3.1.

I tested them with "fastboot boot *.img".

Hope this helps anyone
[Nexus S Q&A, Help & Troubleshooting] stavros86:
The first nexus s i had had problem with low wifi signal and back button but the second nexus s i took has good wifi signal and no problem with back button
[Nexus S Q&A, Help & Troubleshooting] :
Hi guys. I'm wondering if you guys have the same problem with wifi as I do: basically, When the screen turns off wifi becomes very slow, which limits apps like SwiFTP or Samba. In my N1 I know this is caused by PM_MAX setting inside the kernel, but I'm not sure if this is the same with the NS or not. I'm running CM7 RC2 With Netarchy kernel.

Thanks a lot!
[Nexus S Q&A, Help & Troubleshooting] Si_NZ:
Yep I noticed that too. It drops from about 900KB/s to 20KB/s.
[Nexus S Q&A, Help & Troubleshooting] Bolick:
Also noticed speed drops while screen is being turned off.

Also sometimes I have to toggle WiFi to get a network connection alive.

On Nexus S with CM 7 RC2
[Nexus S Q&A, Help & Troubleshooting] Andy6446:
No problems here,

Actually it's much better than on my previous phone Galaxy 3

I did some speed tests and it's the same as on my home pc
[Nexus S Q&A, Help & Troubleshooting] :
Hey guys, just so you know I recompiled the Wifi module from Netarchy 1.3.0.2 kernel to replace PM_MAX with PM_FAST and make the wireless a lot more consistent when the screen is off. If you know what you're doing you can try it at http://www.mediafire.com/?a29kuzgd61q0m62 adb push the file to ./system/modules/bcm4329.ko (need to mount system as rw first) and see if it works for you :-)
[Nexus S Q&A, Help & Troubleshooting] muziqaz:
I don't know if there was a post like I am going to write now, but maybe for someone it will help.

I did not have problems with connections, only weak signal.

Recently I changed my router to Billion 7800N. And had some free time, and figured to check it out how my nexus S connects to it. Got wifi analyser on my phone, and noticed that signal strength is very bad. Like -80dBm even sitting next to the router. So I checked for other channel, and yeah, mine was one of the busiest. So I used wi fi analyser again to find the least busy channel, changed to it, and I have now -56/-49dBm signal. next I noticed that my link speed is very low(my router is N standard and nexus S is N standard). Changed to 802.11n only in the router. Phone failed to connect. changed to 802.11G only, connects without a problem.

My security mode on the router was WPA/WPA2-PSK with WPA algorithm being TKIP. I changed the algorithm to AES, and my phone connected to 802.11N straight away. So now I have my phone using all the benefits it offers :)

It might not help everyone, but it might give some food for thought.

Oh, and my channel width remained at 20/40MHZ.
[Nexus S Q&A, Help & Troubleshooting] darklord74:
Speed drops when screen shuts off

Not sure if you read this entire thread or not but the default setting in the SNS shuts off wifi when the screen goes to sleep. Go into the wifi settings advanced and click Never in the wifi sleep policy
[Nexus S Q&A, Help & Troubleshooting] blankit:
The reason why the nexus s has a weak woofing signal is because of its plastic body design..HTC phones are metal so that helps with signal strength...plastic blocks some signal strength
[Nexus S Q&A, Help & Troubleshooting] rakh1:
Wow - you might need to go and read your electromagnetic propagation theory again.... plastic (being non conductive) should have minimal impact on the transmission of this near microwave signal (hence plastic plates in microwave ovens being ok) - and the plastic tops to the original iPhone, etc etc...

There may be some credibility in the argument that a metallic case may provide some enhanced earth plane and as such boost signal output - but I am not sure if this is useful on what must be a fairly omni-directional system.

Just my $0.02...

/R
[Nexus S Q&A, Help & Troubleshooting] Gerike.me:
Hi i have a really wierd issue with my nexus s ( 2.3.6 ) not rooted everything original, i bought it simfree .

Long story short i travel much , so i use my phone on wifi hotspots a lot

everything was fine unitll 1 day suddenly once i vent to a mcdonalds

i did not see any any wifi signal while my laptop front of me was alrdy connected.

i did used my phone in different mcdonalds b4 there no problems.

since that i used it once in quick fast food place,but visited like 4-5 different mcdonalds ( different citys) dont saw even the singal in any of tham and i dont get why is that.

i do see other wifi signals.

i did factory reset so i loast all my application i had b4...

still i cant even see the wifi signal in mcdonalds( wich would be basicly the easiest wifi spot to find anywhere)

i would be greatfull for any kind of help.

some of my thoughts:

- is it possible that some settings have been made by exident on my phone wich couse block mcdo wifi signal.

- is my phone brooken?

forgive my english.

iam at france atm if it is matters.
[Nexus S Q&A, Help & Troubleshooting] SeanTNL:
[Q] Wifi and Bluetooth not working after root

Hi, I'm new here so I hope I posted this in the right thread.

Here's my phone info:

It's a Vodafone UK Nexus S bought from Carphone Warehouse in February btw.

Model Number: Nexus S

Android Version: 2.3.6

Baseband Version: I9020XXKF1

Kernel Version: 2.6.35.7-gf5f63ef android-build@apa28 #1

Build Number: GRK39F

Wi-Fi MAC address: unavailable

Bluetooth address: unavailable

When I turn on WiFi it says Error, when I turn on Bluetooth it just keeps trying to turn on.

I rooted my phone following a tutorial on nexusshacks.com or something? It was the first google search result with a video tutorial. I installed CM7 and it was working fine then randomly two days ago, the WiFi stopped working. I've searched for fixes the past two days and now my phone is running stock 2.3.6 and is locked (not rooted, or unrooted?) and it still has the problem. This was the only fix I found suggested (other than buy a new phone :( )

Any suggestions? I'm new to it all so the kernal and img things might need some explaining.

Thanks in advance, hope I've given enough information.
[Nexus S Q&A, Help & Troubleshooting] frutelaken:
What do you mean by 'the Wi-Fi stopped working'? Can you still see access points or can't you enable it anymore at all in the settings? Or is it connecting to an access point but failing to connect to the Internet after that...?

Greetz
[Nexus S Q&A, Help & Troubleshooting] SeanTNL:
When I tick the WiFi box to enable WiFi, it says Turning on... which lasts for about 10 seconds or something and then the text underneath WiFi says Error.

Like

Settings> Wireless & networks is like this

Airplane mode []

Disable all wireless connections

WiFi []

Error

Wi-Fi settings

Set up & manage wireless access points

(the following in grey)Bluetooth []

Turning on...(/end grey)

Bluetooth settings

Manage connections, set device name & discoverability

etc etc, I'd post a screenshot but I can't until I have 8 posts apparently.

In About Phone > Status the Wi-Fi MAC address is "Unavailable" as is the Bluetooth address.
[Nexus S Q&A, Help & Troubleshooting] SeanTNL:
Ended up locking it and taking it back to Carphone Warehouse (best buy in US). No idea how to fix it, couldn't find any help like anywhere on the net. Via anything.

If anyone finds this thread through Google (like I did) and you solve it, please post and let folk know.
[Nexus S Q&A, Help & Troubleshooting] jerkwagon:
im also having this same problem, please let me know.
[Nexus S Q&A, Help & Troubleshooting] Suen:
wifi error

my i9023 exactly the same with #65 freind 'SeanTNL''s.

Searched all Chinese forum that might help and failed,now to English ones..:o
[Galaxy S I9000 General] 2xdice:
Hi

Yesterday i wanted to instal on my galaxy s the darky rom. But when the install of CF-ROOT file with odin finished. my phone restarted and stuck on the black Galaxy s screen and only vibrates. I only managed to enter Power reset or unknown upload mode. Ís there a way to fix the phone?

Thx in forward.
[Galaxy S I9000 General] JJEgan:
ASK Darky its his rom .

Makes more sense to ask the fella that built the rom .

jje
[Galaxy S I9000 General] dan@msx:
id try and re-install the original rom 1st, what it was on before you tried to update.....
[Galaxy S I9000 General] snapper.fishes:
Just flash any old eclair rom.
[Galaxy S I9000 General] 2xdice:
but i have a problem my phone is not going into download mode anymore.
[Galaxy S I9000 General] Xacky:
The three button combo did work before flashing darky?
[Galaxy S I9000 General] 2xdice:
yes. it worked before.

the only thing i can open is the forced upload mode.
[Touch Pro2, Tilt 2 Android Development] mike92585:
Hi all,

I've been a faithful WM user until I saw the beautiful work that matt (xandroid) has been doing. I followed his work since August of last year, and had Android on my touch pro2 (sprint). :D

I love everything about the work, but low battery part is just a killer for me. The latest Tiad version of froyo only lasts about 8 hours top (with minimum use - just email sync). I think Xandroid (FRX04) is lasting about 9 hours. :confused:

I keep going back and forth between FRX03/04 and Froyo work made by Tiad8. What are the relationship between these two work? I know the kernel is the same, but which is the one to go?

Battery life wise, are they any different (one better than the other)? or is that a kernel problem still? Has anybody been successful to run android on rhodium for all day with specific (old) kernel? As you can see, I don't care about camera, bluetooth, and etc.

As a user, I just want my phone to last a day for me. I work from 7 AM to 5 PM. As of right now, my phone won't last unless I charge it through USB during the day.

Let me know! Thanks all.

Mike
[Touch Pro2, Tilt 2 Android Development] electricalve:
Well I dont think that we can compare the job of this 2 guys, tiad is triying to give us the missing parts like a good 3d and camera. and mathews is working righ know on stability and a ported version, both works are great, and im testing rightnow the FRX04 the battery last much longer than other builds. and i haven´t to hardreset the phone even once. on my rhod 500. working with GSM.
[Touch Pro2, Tilt 2 Android Development] mike92585:
Sorry if I came out like comparing two works. I just wanted your two cents on battery; that's all.

Thanks!
[Touch Pro2, Tilt 2 Android Development] arrrghhh:
There really is no difference with tiad8's build AFAIK. He just takes the latest and bundles them together for newbies. I wish he wouldn't name it different, as that makes it seem like it's completely different - when in reality the differences are minor - you can achieve the same build by dropping in the appropriate files.

With that said, battery life improvements are all going to happen at the kernel level. So you can take whatever build, and drop in a different kernel to improve battery life.

At this time, WisTilt2's test kernel is going to get you the best battery life. He's working on the rest of the devices so he can commit his code (basically our phone's are not sleeping correctly, the panel is still getting/sucking power even tho the screen appears to be off)

See the test kernel thread here.
[Touch Pro2, Tilt 2 Android Development] mike92585:
Thanks for the post, Arrrghhh. You are talking about the wistilt2 kernel stripped version right?

I will try that with FRX04.

Thanks.
[Touch Pro2, Tilt 2 Android Development] arrrghhh:
Not sure what you mean by stripped version. I see now... that's down below in F22's post - focus on the first post ;). Just download the kernel-pack that's attached to the first post.

There was a discrepancy on the modules that needed to be included. It was sorted out, and the first post has the newest test kernel that WisTilt2 has provided me with.
[Touch Pro2, Tilt 2 Android Development] nickleby:
I think they are "similar", but I must say that I always have issues with XDAndroid... It hangs when appears the Android home screen and I must reboot like 50 times before it works ok, also it's a little slow...In contrast, FroyoX always worked from the first time and is super fast without overclocking...That's my opinion!
[Touch Pro2, Tilt 2 Android Development] arrrghhh:
I'd honestly want to know the difference between the system image FRX04 and the 'Froyo X' system image. If there is a tangible difference, we need to change whatever tiad8 changed!

I wish that dude would work with us instead of in parallel to our work....
[Touch Pro2, Tilt 2 Android Development] mizofizo:
I was having a similar experience with my Sprint TP2. I updated to FRX04 and then the camera testing kernel but my battery life was about 6-8 hours.

I had it set to disable satellites but left "Use Wireless Networks" enabled and then last night I turned off all of the location options. Today I'm at 8 hours and the battery is only down to 68%. The other thing I looked at is that if you have Facebook, Twitter, Fourquare or any other apps running that any auto-refresh/updates/notifications are disabled.

Hopefully this helps you out. I've gone from hating my phone with it's constant lag in WM to loving using my phone with Android.
[Touch Pro2, Tilt 2 Android Development] mike92585:
Mizofizo, let me see what you exactly did.

Since you use sprint and also in boston, we are pretty much on the same boat. However, no matter what I do, I can't get my battery to last all day. I always have both use wireless networks off and location options off as well. No facebook or nothing.

I am now at a point where I am even afraid to turn the screen on because of the battery drain.

Could you email me the startup.txt or pm me the detail? So you are using the stock FRX04 with which kernel are you running? Are you running the latest 1253?

This is my startup.txt that I have been using.

set ramsize 0x10000000

set ramaddr 0x10000000

set mtype 2292

set KERNEL zImage

set initrd initrd.gz

set cmdline "lcd.density=240 msmts_calib=0x9f.0x39a.0x35c.0x78 msmvkeyb_toggle=off pmem.extra=1 gsensor_axis=2,1,3 force_cdma=1 physkeyboard=rhod210 hw3d.force=1 htc_battery_smem.fake=1 north_am_dialing=1 pm.sleep_mode=1"

boot

Note pm.sleep_mode=1. :)

Thanks in advance.

Mike
[Touch Pro2, Tilt 2 Android Development] arrrghhh:
I'd remove your email from the post - trust me, you'll get a ton of spam because of it. Just do <email> at <domain> dot com if you ever feel the need to put your email address into a forum (which I wouldn't do either :p)

Anyhoo, I highlighted in red/bold some of the commands you should consider removing. Especially the htc_battery_smem.fake!

Oh, and if you're on Sprint - is it a Sprint-branded phone? If so, that's a RHOD400. RHOD210 wouldn't even work on Sprint, as there's no CDMA radio in that device ;).
[Touch Pro2, Tilt 2 Android Development] mizofizo:
I would delete the options that arrrghhh specified.

I'm running FRX04 with the camera testing kernel. My startup.txt is as follows:

set RAMSIZE 0x10000000

set RAMADDR 0x10000000

set mtype 2292

set KERNEL zImage

set initrd initrd.gz

set cmdline "lcd.density=240 msmvkeyb_toggle=off force_cdma=1 gsensor_axis=2,1,3 pm.sleep_mode=1 hw3d.force=1 physkeyboard=rhod400 board-htcrhodium.is_cdma=1"

boot

Note that I don't have a rel_path since I put everything in the root of my SD card.

With my current config, yesterday at about 16 hours of use (including wifi and gps) I had about 38% battery left.
[Touch Pro2, Tilt 2 Android Development] mike92585:
Thanks to both.

I finally see the green led light on my tp2. =D

Hopefully I will get some long battery life now... I will post back once I do!
[Touch Pro2, Tilt 2 Android Development] scattaman:
I have used the startup.txt details above but I still have issues with my phone waking up! The light never turns green and it will not wake up after a while of not being used.... any suggestions?

Using XDAndroid FRX04 1/23/2011

AT&T Tilt2

Kernel 1250
[Touch Pro2, Tilt 2 Android Development] mizofizo:
Why are you using kernel 1250 instead of 1253 or the one included in FRX04? I'd try just using FRX04 as is. Make sure that all unneeded syncing/services are turned off.
[Touch Pro2, Tilt 2 Android Development] arrrghhh:
SoD issues still ensue - devs are looking into a potential resolution/root cause.
[Touch Pro2, Tilt 2 Android Development] scattaman:
Thanks but I've tried all the available kernels... including the one that came with FRX04... its just really annoying because it happens almost everytime I pput my phone down for 5 minutes :(

Well its good to know that I'm not the only one...
[Touch Pro2, Tilt 2 Android Development] arrrghhh:
It does happen, but it shouldn't be that frequent. Are you running any apps when you put your phone down...? Post your startup.txt too, just to make sure there's nothing funky in it.

Also, have you tried NOT OC'ing? Are you on pm.sleep_mode=1?
[Touch Pro2, Tilt 2 Android Development] slapshot30:
For those of you with decent battery life, how do you setup android when running for the first time?
[Touch Pro2, Tilt 2 Android Development] mizofizo:
What do you mean? I formatted my SD card, unrared FRX04 to the root of my SD card. Changed the conf file to point to the root and configured my startup.txt. Afterward, I setup the camera kernel as well. That's about it.
[Touch Pro2, Tilt 2 Android Development] slapshot30:
I mean after you first boot into android (at the android homescreen). To sync with google right away or wait, open all apps then reset, etc.
[Touch Pro2, Tilt 2 Android Development] manekineko:
I get pretty good battery life, and I don't follow any of those first-boot rituals. I think it mainly depends on have GPS satellite location off (most important) and what programs you load up.
[Touch Pro2, Tilt 2 Android Development] arrrghhh:
Assuming your device is sleeping properly, you should get pretty good battery life. Especially if the phone is sleeping properly.
[Touch Pro2, Tilt 2 Android Development] slapshot30:
Alright, the sleep mode setting in the startup = 1... correct? Also, what would you consider the most stable kernal right now. My thought would be the 1253 but when I try to download the zImage and save it, it saves it as a weird type(a bunch of numbers) and then when I change the type to be all files, it doesn't work either. My haret won't run it.
[Touch Pro2, Tilt 2 Android Development] arrrghhh:
Well honestly for the best battery life, WisTilt2's kernel is best.

With that said, to update your kernel you rename the zImage-xxxx file to zImage - just like that. No file extension, same case. Then you do not touch the modules file. Should be modules-xxxxx.tar.gz. Delete (or move) your old zImage and modules-xxxx.tar.gz files, and replace with the new ones.

sleep_mode=1, correct. Also, I wouldn't overclock.

Of course, watch that LED like a hawk - it must be green or else the phone isn't sleeping!
[Touch Pro2, Tilt 2 Android Development] slapshot30:
Okay thanks. I'm going to test the 1/29 version first thing in the morning. I don't care much about the other bugs honestly. This whole time the battery has been the main hangup for me and if I get as good as results as everyone else is getting then I'll be a happy camper :D.
[Touch Pro2, Tilt 2 Android Development] rpierce99:
Accidentally left my phone off the charger last night when I fell asleep, woke up to a half full battery this morning. That never happens.
[Touch Pro2, Tilt 2 Android Development] ethanpil:
is that good or bad? :)
[Touch Pro2, Tilt 2 Android Development] rpierce99:
Probably should have quoted the post above me. It's a good thing, I have sync on for just about everything, and I have a lot of stuff installed, Facebook, Twitter, Gmail, Exchange, etc. Previous to the wistilt2 test kernel I would maybe get 7 hours on a charge, last night I probably got 12 out of it and it was still half full.
[Touch Pro2, Tilt 2 Android Development] arrrghhh:
Full (proper) panel collapse is a beautiful thing... just a few more tweaks and I think it'll be perfect ;).
[HTC Aria General] matt_b:
this is by no means a definitive list, but here are a few links to articles i have read that have helped improve my battery life drastically. if you have any other useful information, please share.

----------------------------------------------------------------------------------

instead of thinking, 'i need to replace the battery because it doesn't last long enough', try thinking 'how can i use my phone in a manner which doesn't unnecessarily drain its battery'.

HowToGeek.com - Complete Guide to Maximizing Your Android Phones Battery Life

Lifehacker.com - Android Task Killers Explained; What They do and Why You Shouldn't Use Them

Reddit.com - I Stopped Using a Task Killer Last Week to See if There is a Difference; There is, and its Huge

Reddit.com - Further Discussion on the Proper Use of Task Killers

Lifehacker.com - JuiceDefender Simplifies Automated Android Battery Saving

Lifehacker.com - Watchdog Monitors Your Android for Runaway Processes
[HTC Aria General] DPLOY:
Thanks for this -