Database Develop

Froyo + WiFi = disabled connections

So ever since I've gotten my Nexus One I've been noticing it drops out of a WiFi way too often. It does it both at home and at work on Wireless routers using the latest firmware. I've set the sleep policy to never go to sleep but most of the times I wake my phone up, I'll find it on 3G instead of the full strength WiFi it should be on. On 2.1 when I'd go into WiFi settings it would show the connection and say something along the lines of "Connection unsuccessful, tap to try again" and on 2.2 it just says "Disabled, Secured by blah blah blah". If I retry, it ALWAYS connects and WiFi will stay active for a short period of time before falling back to 3G.
Is there some way I can tell Android to retry the WiFi connection if it fails instead of just giving up? I've been looking through the WiFi API's on the Android Developer site and I'm this close to writing an application that will attempt to mitigate this issue for me.
If I'm within range of one of my pre configured networks, I want the phone to try it's hardest to stay on WiFi. If it loses connection, retry. It it can't get it after 5 retries, wait five minutes and try it again, don't just give up and mark the connection as disabled.
I've read tons of threads about people with WiFi issues and people always say "it's the router, it's the channel, etc, etc" but my WiFi works perfectly fine as long as there is a human to reconnect it if it drops.
Anyone else in the same boat as me?

ok so apparently I'm the only one with an N1 and a WiFi issue.......

I have the same exact issues.

I have the same issue as well and if it stays on I have to turn wifi off and back on so it will connect properly
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same issue here. i had been looking for an app that would force the connectivity, but the market doesn't seem to have it. just a bunch of crappy wifi on/off switcher management apps. i'm surprised that no one has hacked this function or built an app for it.

It's certainly a very annoying problem. Mine will go to known good wifi networks, at work, at home and at other locations where my other devices work flawlessly. I have a coworker with the exact same firmware (we updated using the same file) on a nexus one that has never seen this problem, which I find odd, but I'm fairly new to Android. It looks like a software or driver issue to me, but as I said, I'm new to Android.
My device shows the known networks as "Disabled", but I can connect manually.

Looks like it's worth me coding up an App to fix this then.

what kernel are you using? i used to have that problem but that has gone away with newer kernels. unfortunately a new problem has arisen where after being in standby for a while, wifi shows as connected but doesn't have an outside ip. wondering if its my rogers modem or not.

y2whisper said:
what kernel are you using? i used to have that problem but that has gone away with newer kernels. unfortunately a new problem has arisen where after being in standby for a while, wifi shows as connected but doesn't have an outside ip. wondering if its my rogers modem or not.
Click to expand...
Click to collapse
2.6.32.9-27220-g328f560
android-[email protected]#1
I've never tried a new kernel.. Is this something I should look into?

I'm running the same kernel.

BootsSiR said:
Looks like it's worth me coding up an App to fix this then.
Click to expand...
Click to collapse
Personally I wouldn't do any work towards writing an app to fix this since it looks to me to be an OS or driver issue that should be resolved in a future release (hopefully in very short order).
An app would really just be a band-aid, but I'm the lazy type and I can deal with using my cell ular data when I don't feel like reconnecting my wifi.
Full disclosure: I'm a crummy programmer and it takes me forever to write stuff so I'm usually less inclined to do it.

w9ndb said:
Personally I wouldn't do any work towards writing an app to fix this since it looks to me to be an OS or driver issue that should be resolved in a future release (hopefully in very short order).
An app would really just be a band-aid, but I'm the lazy type and I can deal with using my cell ular data when I don't feel like reconnecting my wifi.
Full disclosure: I'm a crummy programmer and it takes me forever to write stuff so I'm usually less inclined to do it.
Click to expand...
Click to collapse
I'd rather take the time to fix it then wait for an update that may never arrive. Always fun digging into the API anyways

That's cool. I still find it a bit troubling, though, that some devices see it and some don't, using the same firmware, on the same wireless networks.
I guess it could be a board rev. difference or an app conflict or something. ::shrugs::

I have a similar problem. I use APNdroid to keep cellular data off and use wifi, but I continually have to reconnect wifi no matter what if I am not actively using it. Defeats the purpose of push email.
I downloaded APNdroid after checking data usage and finding that with wifi on there was still significant 3G leakage. Especially confusing with wifi set to never sleep and plugged in overnight.
On the plus side, APNdroid has netted me a lot more battery life, I can almost get two days and one night. I almost never use my spare battery anymore.

Just as an additional data point, I am having the exact same issue with 2.2 FRF83 (I had been on FRF50).
It looks to me like it is simply scanning all of the time and never associating with a known network. I'm not sure why it flags them as "Disabled", however.

Have you guys tried to set the "wi-fi sleep policy" to "never"
if not, try this:
Wifi settings->menu->advanced->wifi sleep policy->Never

safeplayer22 said:
Have you guys tried to set the "wi-fi sleep policy" to "never"
if not, try this:
Wifi settings->menu->advanced->wifi sleep policy->Never
Click to expand...
Click to collapse
Yeah, it doesn't help, that was one of the first things I tried. Any time I leave and come back, the networks show as "Disabled". It's a frustrating issue in that it isn't consistant. It's 80% fail, 20% work.

I had my g1 for a year now and just now got my n1. I havent rooted it b/c of this bug. At first i couldnt listen online radio b/c as soon the display went out it would buffer the whole time. I played with the wifi router and the n1 wifi settings an managed to fix it somehow, BUT when i wake up in the morning for some od reason it lost connection and never reconnected again. So i can hear online radio with the display out but after some hours w/o online radio and just in standby it loses wifi connection and never connects again
This issue is not new. There is a thread on the google forum many pages long. Nobody hase even a clue where it could come from. Some1 on the forum said if u call support they will tell its ur routers fault.
The n1 completly ignores the sleep policy settings.
I have rooted two g1s with goldcard and still using one w/o a problem.
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Zapo said:
I had my g1 for a year now and just now got my n1. I havent rooted it b/c of this bug. At first i couldnt listen online radio b/c as soon the display went out it would buffer the whole time. I played with the wifi router and the n1 wifi settings an managed to fix it somehow, BUT when i wake up in the morning for some od reason it lost connection and never reconnected again. So i can hear online radio with the display out but after some hours w/o online radio and just in standby it loses wifi connection and never connects again
This issue is not new. There is a thread on the google forum many pages long. Nobody hase even a clue where it could come from. Some1 on the forum said if u call support they will tell its ur routers fault.
The n1 completly ignores the sleep policy settings.
I have rooted two g1s with goldcard and still using one w/o a problem.
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Sent via the XDA Tapatalk App
Click to expand...
Click to collapse
Well, I know fore a fact it's not my access point. I am a network engineer and worked on wireless systems for years and debugging these types of problems is something I'm a bit obsessive about. This stinks of a software or driver problem to me. It could potentially be a hardware revision issue since we have a N1 that works perfectly in all scanerios.
I've tested this with the following access points:
Apple Airport Extreme
Apple Airport Express
Meru
Cisco 1231
Cisco 350
Belkin pre-n
Linksys WRT54G stock
Linksys WRT54G dd-wrt (I forget the build number)
Soekris Engineering running pfSense
All exhibit the same behavior, while my control devices (Apple iPhone 3g, Apple Macbook Pro and a MyTouch 3g running Cyanogen 2.1).
I wasn't aware that this was related to rooting, I'd be more than happy to move back to a stock ROM if that solved my problem. Maybe I'll try that today if I get some time.
Could you possibly post a link to the google forum you're referencing?
I'm currently digging through the alogcat output to see if there is anything interesting in there.

This issue is worse since I upgraded to 83. I'm actually holding off to try CM6 when it comes out to see if there is any better performance there. I'm not sure if he uses updated drivers or kernel that may give better wifi performance.

[Q] Tethering via Bluetooth Dial-up Networking (DUN)

Is there any way to tether an android device to your laptop via Bluetooth DUN? Basically what I'm trying to do is to initiate a internet connection (over 3G) from my laptop, WITHOUT having to take my phone out of my pocket.
I used to be able to do this ages ago when I had a Symbian device, and it was convenient. What I have to do now, is take the phone out of my pocket, start the "Portable Wi-Fi hotspot" service on my phone, and then put it back in my pocket.
Anyone have any thoughts?

PdaNet in the market...
Sent from my Nexus One using XDA App

danger-rat said:
PdaNet in the market...
Sent from my Nexus One using XDA App
Click to expand...
Click to collapse
Thanks. I just tried it. It seems to do most of the job. However, you still have to start the service within the app on the phone (for example after a reboot). Would love to have something that runs on its own, without any user input at all once it is installed.
As well, does anyone know what the battery use is if I leave it running all the time?

efrant said:
Thanks. I just tried it. It seems to do most of the job. However, you still have to start the service within the app on the phone (for example after a reboot). Would love to have something that runs on its own, without any user input at all once it is installed.
As well, does anyone know what the battery use is if I leave it running all the time?
Click to expand...
Click to collapse
I used it on my G1 running donut and it didnt seem to make any change on battery life,but my battery life was horrible to begin with,so it could have some impact and I just didnt notice. My g1 lasts about 4 hours on a full charge,thats just sitting there,it dies after about 45min of talking.

[Q] 3g modem on nook

Hello, I wonder if its possible to put in a 3g modem and use mobile broadband on the nook ?
Please excuse me for bad my bad English

Hardware modification is a lot of work. In most cases it's not even possible.
You are better off tethering to your phone or a hotspot if wifi isn't available...
In my opinion.

k0ng0 said:
Hello, I wonder if its possible to put in a 3g modem and use mobile broadband on the nook ?
Please excuse me for bad my bad English
Click to expand...
Click to collapse
Where do you propose to insert the USB 3G device? Maybe once Bluetooth is working there will be a device to add 3g via Bluetooth. But there is not, as far as I know, 3G hardware available on the NC board... yet.
migrax
ps: forgive me if I appear to be a smartass.

k0ng0 said:
Hello, I wonder if its possible to put in a 3g modem and use mobile broadband on the nook ?
Please excuse me for bad my bad English
Click to expand...
Click to collapse
I'll make it simpler than the others...
Sorry, no.

Sadly the nook doesn't really have the capacity to add 3G hardware. Some tablets do have full sized USB ports that can physically connect to a USB 3G modem, but there is no built in driver support on those tablets either. Your only real option currently is wifi tether to a 3G phone.

Just in case any of these replies are missing information you need:
1. No, you can't add 3g to the Nook, in fact this is why i love it as a tablet - no extra data plan to pay for
2. BUT you can easily use the nook's wifi to connect to a portable hotspot
3. You could if you wanted buy a portable hotspot (e.g. Mifi, or overdrive), but these come with expensive data plans
4. You can use your regular cellphone. This requires rooting on an android device, and I do not know if this is possible on other platforms. Anyway, I reccommend "wireless tether" as the app to use simply because it can be set up to only communicate with MAC addresses that it approves (it's great being in an airport and seeing all the internet leaches being bounced off your phone's hotspot).
5. If you are super lucky, your phone will operate as an 'infrastructure network', and you can stop reading right now! ;-) However, more than likely, your phone will operate as an "adhoc" network, not an "infrastructure" network. This requires some tweaking of your nook on 2.1 ROMS (there's several threads on this), but is built into 2.2 (which is a major reason to move to Froyo).
6. The ad-hoc fix is a bit buggy, and whatever B&N changed in 1.1 makes this much worse. Again there's several threads describing this. In 1.01 the solution as to use an app to shut down and restart the wifi as the screen shut down or tuned off. BUT THIS DOES NOT FIX THE PROBLEM IN 1.1 AND IF ANYTHING MAKES IT MORE ANNOYING.
7. Basically there is some issue in 1.1 where when the nook wakes, the wifi is on but it may not reconnect to a network until you tell it to. This happens occasionally for the stock wifi, but happens continuously with the ad-hoc fix. The best workaround i have found is to have an app called "wifi buddy" in my dock - then when the machine wakes up if it can't see the network, i just launch wifi buddy and it connects immediately.
Hope that helps

That would be nice, what I do is tether my iPhone to my nook using MiWi. Its fast and reliable

Tether Nook Color to iPhone using PDAnet?
mateo124 said:
That would be nice, what I do is tether my iPhone to my nook using MiWi. Its fast and reliable
Click to expand...
Click to collapse
I am using PDAnet on the iPhone. It's free and also offers the option to broadcast a WiFi hotspot. Other iPhones and my laptop see the hotspot but the Nook does not. Has anyone tried that yet?

Found the answer!
Ad-hoc fix for tethering
I found a great guide to use PDAnet (free version) for tethering the NC with my iPhone 3Gs. Hooray for this awesome forum!

If you could somehow get the SoC from the Droid X in there... it might be remotely possible. But the time and effort required would make this a purely "did it to say I did" type of hack.
Save your duckets and get a real tablet when the dual cores get affordable.

cal3thousand said:
Save your duckets and get a real tablet when the dual cores get affordable.
Click to expand...
Click to collapse
I AM trying to get a real tablet... it's just that it's hard to find the perfect one

cal3thousand said:
Save your duckets and get a real tablet when the dual cores get affordable.
Click to expand...
Click to collapse
Or, while waiting a year for that to happen, buy a NC that will do 90% of what that one will do now for half that price.
/shrug
It's your choice.

[Q] Using the Streak 7 on a Smartphone plan instead of a tablet plan

OK. I have a 5 line family account on T-Moibile, with the 5th line currently not in use. Its data plan is considered a "smartphone" data plan. Now, my friend just purchaced a Streak7 and I want to put it on that 5th line. He put the sim card in, the Streak can recive text messages, but no internet (keep being redirected to MyTMobile). Called up TMo CS, they said that I cant use that line with a tablet, I have to add a 6th line onto my account as a tablet line. My question is, is it possible to trick the Streak into using the sim card I have for data? I really dont want to have to pay another 60 bucks on top of the over 200 I already pay .

omega9380 said:
OK. I have a 5 line family account on T-Moibile, with the 5th line currently not in use. Its data plan is considered a "smartphone" data plan. Now, my friend just purchaced a Streak7 and I want to put it on that 5th line. He put the sim card in, the Streak can recive text messages, but no internet (keep being redirected to MyTMobile). Called up TMo CS, they said that I cant use that line with a tablet, I have to add a 6th line onto my account as a tablet line. My question is, is it possible to trick the Streak into using the sim card I have for data? I really dont want to have to pay another 60 bucks on top of the over 200 I already pay .
Click to expand...
Click to collapse
Nope, you have to get a broadband plan. I'm using the $30 plan, which provides 200 Mb of high speed and thereafter EDGE speeds (no limit). I don't use it for much away from WiFi - just traffic and email, basically. I've not gone over 120Mb per month.
EDIT: Note that if you already own the S7, you DO NOT have to use a contract - the prices are the same. So I'm on a month-to-month plan.

Now, browsing the XDA forums, ive seen that folks with the Galaxy Tab can get this to work by hiding or deleting the "efs" folder on the root of the device. This causes the Tab to send a generic IMEI number to the carrier and gets it listed as a phone, not a tablet. Can something similar be done on the Streak?

I hope so,I would try it.

problem is, there is no EFS folder anywhere. And yes, it is rooted, we used Root Explorer to search.

if im not mistaken I think efs could also be stored deep in memory, where our unlock code is hidden

The streak, and likely streak 7 dont store device specific data that way I think (in /efs like samsung devices)
I assume the IMEI is stored in the same location as the Service tag. This area is a non-paritioned data structure in the nand. There are no tools to write to it, but obviously the rom itself can read from it.
The only known method if writing to it is via a jtag restore, which as there's no clean jtag dumps it just resets everything to 000000 and breaks a lot of stuff. Weither or not it can be written to without jtag, noone's bothered to document it. The unlocker tool likely reads out of this and that's how it works, but they obviously wouldnt freely give out the details or else you could do it yourself for free. Changing the IMEI is likely similar.
Also keep in mind changing the IMEI is ILLEGAL in most places, I would be surprised if XDA would allow talk of intentionally changing the IMEI. (Fixing after a bad wipe it is entirely different from intentionally changing it)

How about in case if I use a Unlocked DS7 on Non T-Mobile like ATT.
I believe in this case IMEI Change would not be required, but call functionality would be needed right?
How to enable Call Functionality in this case?

sorry to jump in guys, but basically your saying that I can't just take my existing sim (with data plan) from smartphone and put it in the DS7 and get internet/3G data? If so, is this true for all unlocked tablets, i.e. galaxy tab, HTC flyer, Huawei IDEOS S7, etc... thanks in advance, was planning on getting an unlocked tablet.

nick714 said:
sorry to jump in guys, but basically your saying that I can't just take my existing sim (with data plan) from smartphone and put it in the DS7 and get internet/3G data? If so, is this true for all unlocked tablets, i.e. galaxy tab, HTC flyer, Huawei IDEOS S7, etc... thanks in advance, was planning on getting an unlocked tablet.
Click to expand...
Click to collapse
With T-Mobile it is certainly true. You can only use a broadband SIM card and plan. I don't know about other carriers with an unlocked S7.
Sent from my Dell Streak 7 using xda premium

thanks steve for the info. then there's really no point in getting any 3G tablet unless u buy a separate tablet data plan, right? I'm with T-Mobile.

nick714 said:
thanks steve for the info. then there's really no point in getting any 3G tablet unless u buy a separate tablet data plan, right? I'm with T-Mobile.
Click to expand...
Click to collapse
Yes. The reason for the 3G is to use when away from WiFi. It is nice to have the web connection when out and about.
If you already own the tablet you don't need to get a contract - so you can cancel anytime. The costs are the same. I'm on the $30 plan which nets 200 Mb, then slows down the data speed. I use mine with Wifi for a lot of my heavy duty surfing, and mostly use the 3G for google maps, email, etc. when out of the house.

If your phone supports tethering then you're still better off doing that.
Unless you have a small tab like a s7 then you'll likely be carrying a phone around too, with a small tab it's more situtational but it still applies. And as wifi tabs dont depend on carriers, they tend to update faster and more often.
If you're consistantly away from wifi and dont have your phone on you then yea this is a good use of a cell enabled tab, but otherwise it mainly means having a 2nd line on your account.
How often are you gonna bring it around without any other way of data?

TheManii said:
If your phone supports tethering then you're still better off doing that.
Unless you have a small tab like a s7 then you'll likely be carrying a phone around too, with a small tab it's more situtational but it still applies. And as wifi tabs dont depend on carriers, they tend to update faster and more often.
If you're consistantly away from wifi and dont have your phone on you then yea this is a good use of a cell enabled tab, but otherwise it mainly means having a 2nd line on your account.
How often are you gonna bring it around without any other way of data?
Click to expand...
Click to collapse
You are correct of course. But there are other considerations. The screen on a 7 inch tablet is way bigger than my 4.3 inch HD2; Google maps is really nice on the larger screen. Also, tethering uses WiFi on both the phone and the tablet, causing both to deplete the battery faster. Last, T-Mobile phones ( or at last the ones I have had) do not support simultaneous voice and data. It is a matter of personal choice, needs, and cost.
Sent from my Dell Streak 7 using xda premium

You cant do simultanious voice and data? That's strange.
On the battery issue, apparently from what i've heard the s7 isnt particularly amazing in that department. Using wifi is still cheaper then 3g for battery, it's a bit more balanced out by draining both devices less vs draining one quickly.

TheManii said:
You cant do simultanious voice and data? That's strange.
On the battery issue, apparently from what i've heard the s7 isnt particularly amazing in that department. Using wifi is still cheaper then 3g for battery, it's a bit more balanced out by draining both devices less vs draining one quickly.
Click to expand...
Click to collapse
I forgot to mention the last one : My S7 is much more efficient in 3g mode than when connected via WiFi. The battery lasts much longer. But yes, the battery is not good. Supposedly the upgrade to honeycomb will help with this.
Sent from my Dell Streak 7 using xda premium

I'll just have to take your word for it then as I dont actually own a s7, but the normal case is (depending on the usage) wifi is more efficient because it can finish downloading and idle faster.

TheManii said:
I'll just have to take your word for it then as I dont actually own a s7, but the normal case is (depending on the usage) wifi is more efficient because it can finish downloading and idle faster.
Click to expand...
Click to collapse
I hope I was clear. WiFi is faster data transfer, but the battery lasts longer on 3G only. The thing that uses the battery is the WiFi modem, which does not idle. One can adjust settings to turn it off when the screen is off, but otherwise it runs all the time - unless you want to manually turn it off and on.
Also, i forgot to mention that the S7 won't connect WiFi to an"ad hoc" device. Some cellphones make their teathering that way. My HD2 won't work with the S7 for this reason. I have heard that some cellphones will work.
Sent from my Dell Streak 7 using xda premium

What OS are you using on your HD2? I assume it's some build of android, CM7 mabye?
Yea the Streak family (S5/S7/Venue) dont do ad-hoc connections, but at least the S5 can tether in AP mode and not ad-hoc mode. If I had a S7 it would be able to wifi tether that way. just throwin out my 2¢.
I cant check 100% but I beleve at least the S5 on wifi disables cell data on 2.2.x. For a brief moment when it's connecting to the AP both the wifi and cell data icons are visible but data dissappears once it's fully connected. As the S7 cant do calls you could completely disable the cell radio if you tether. Though if you're tethering sporadicly you'd still have to constantly turn tethering on/off on your phone anyway.
At this point I believe I'm just thinking out loud for whoever else is reading.
It's likely a sliding scale with [wifi-only <--------> data-only] and it really depends on how you use it. It's clearly not black and white and if you (the hypotheical reader, not you specificly stevedebi) think that it's only one or the other you're clearly wrong.
At least on my old iphone3g the cell radio was so power hungry, even leaving wifi on constantly (including idleing) saves a huge amount of battery vs using cell. Leaving wifi constantly on doubled effective idle battery life. But clearly S1 snaps and tegra2s are more efficient the other way around. (or close enough and technically the t2 requires an external radio so it's dependant on that)
On my s5 the most efficient way is: use wifi when available, turn wifi off when idle and 3g elsewhere. As my usage is mainly large bursts and little streaming I believe this is the most efficient for my usage (which is just web browsing, i use gps too but I cache maps ahead of time).
From the other threads, the cell radio is the most power hungry part on a s7 you can turn off. (and strangely this is even more true for the wifi ones, it's still 'on' and drains power but clearly there's no radio).
Of course this doesnt take the tethering phone into account, but at least when i tether my laptop to my s5 it really doesnt drain the battery much. The phone in tether mode doesnt process anything, it's merely relaying. If it was any other tab then the s7 you could likely even charge it actively if you're using it long enough to sit down. (though it'd look really silly, but 8.9-10.1" devices have huge batteries, the s7 not so much)
Off topic-rambling aside:
If it was me in your position I would merely tether all the time as I use at&t, as they charge an inordinate amount for tablet data. It's much cheaper to have a single (largest available) phone data plan instead of a small phone and small tab data plan. Ultimately which ever is the better deal is just as huge a factor as battery life on either device. (as apparently tmo has much better rates)

I'm using the stock wm Rom. I don't use android on this phone.
Sent from my Dell Streak 7 using xda premium

Phone Calls with N7 3G

Hi to all,
in these days, i was wondering if at this state there is a solution to enable via software the Phone Calls and SMS system on the Nexus 7 3G.
I read that Google released the binaries of the 4.2.2, could be useful to work on it and enable this function ?
Sorry for this stupid question, but probably i bought a wrong device, because i supposed to use it as phone and tablet but i discovered that 3g work only for data...
If there is any simple or complicate solution, i will be grateful to anyone.
Im sorry if i posted on the wrong section yesterday (develepers)
Thanks

Well you can try the Google voice/grooveIP combo. Everything will run on your data as it doesn't have regular phone capabilities. But you can set it up to operate exactly like a phone if you are so inclined.
Sent from my Nexus 7 using Tapatalk 2

You also might try Talkatone. I have a non-3g n7, Talkatone works better for me than GrooveIP. Mainly on wifi, but also works fine on my 4g wifi hot spot device. I've dropped my cell service, use both my phone and n7 on wifi only.

Thanks
hlxanthus said:
Well you can try the Google voice/grooveIP combo. Everything will run on your data as it doesn't have regular phone capabilities. But you can set it up to operate exactly like a phone if you are so inclined.
Click to expand...
Click to collapse
Thanks for your prompt reply.
Its not a must have, but the main reason was to leave the Phone and use the USIM on the Tablet. My first intent was to have just one subscription to a service. So use the Tablet with a bluetooth earset as phone...
Probably this was not a smart idea, i guess...but the damage is done... (as we say in Italy).
I hope there is a simple solution somewhere, in the mean time i would like to root the device and enable tethering for the future...
Thanks again for your support.