yashsingh1/xdaforums huggingface dataset:
[LG Optimus Black] adxgrave:
Huexxx has included this feature in his Zeus ROM v4. With Zeus, there's no need to install WiFi TX Power apps from market and we have one less app running in background. Go to Zeus thread for more info.

In quest to get longer battery life in Zues ROM (which is already awesome, btw), I remember an important feature in openwrt firmware that is transmit power. I search around for tweaks and then tried it on our OB. I found that our OB's wifi driver is capable of adjusting WiFi's transmit power. This is a good feature to decrease power consumption. Many of us have their WiFi router broadcasting signal in close proximity and for those who use portable hotspot most of the time the phone is sitting close to the laptop. In both situation, we can turn the power down thus give us longer uptime.

I'm not sure about the original GB but in Zues (v3.2b) there's no "iwconfig" which we need to configure the wireless interface. I found a post here : http://xdaforums.com/showthread.php?t=1465750 and at the bottom of the first post there's link to download "iwconfig", http://www.mediafire.com/?r1uu73tr5q8fsoj. Thanks to the original poster, full credit goes to him.

I've done this via adb, can also be done via terminal (basically copy iwconfig to /system/xbin/):

1. Download iwconfig from the link above to your pc (if you got iwconfig with .txt extension, remove .txt from it)

2. Connect the phone and run adb push iwconfig /system/xbin/

3. adb shell and cd to /system/xbin/

4. chmod 755 iwconfig

type iwconfig wlan0 in adb shell to see current wlan0 interface configuration. This is what I got:

wlan0 IEEE 802.11-DS ESSID:"TL-WR1043ND" Nickname:""
Mode:Managed Frequency:2.437 GHz Access Point: xx:xx:xx:xx:xx:xx
Bit Rate=54 Mb/s Tx-Power:32 dBm
Retry min limit:7 RTS thr:off Fragment thr:off
Power Managementmode:All packets received
Link Quality=5/5 Signal level=-25 dBm Noise level=-91 dBm
Rx invalid nwid:0 Rx invalid crypt:7 Rx invalid frag:0
Tx excessive retries:114 Invalid misc:0 Missed beacon:0

As you can see the default Tx-Power is a whooping 32dBm (1496mW), I'm not sure if this is a correct value reported by the driver but this is definately too much.

We can change the transmit power directly with iwconfig by command iwconfig txpower but that's not very convenience. So, download WiFi TXpower from market here: https://market.android.com/details?id=rubberbibpepper.WiFiTxPower&hl=en . As we've already have iwconfig in the system, this app will run fine. Set the power to 4dBm first and see if it's ok for your usage.

Note that this is not final. I'm still monitoring power consumption if it has any effect (which it should if the txpower has been reduce). So far so good.

Edit: I've run a simple test by setting up a few routers around, checking the signal quality on the router and using wifi analyser on the phone itself. I can confirm that the phone driver did honour the txpower setting. Reducing the power also has improve the noise level making it more efficient and less prone to transmission error.

if you tried this, post your opinion/result.
[LG Optimus Black] ogremount:
I just changed it, put iwconfig with es explorer and removed file extension. And it worked, changed TX Power from 32 to 11 and still gets the same coverage in the furthest point from my router ( 5 walls) , download speed and ping doesn't seem affected. Well evaluate and see if wifi consumption will go down .

Fingers crossed
[LG Optimus Black] gabwerkz:
Nice... maybe huexxx can incorporate this and make a script or .sh to set a default value/or configurable via zeus script.
[LG Optimus Black] adxgrave:
Yeah. Hope he can add it and make it configurable via his script or app he plan to develop.
[LG Optimus Black] vincevince55:
sorry if i'm ot..there's a tweak to minimize battery consumption even with 3g connection?? or is related with wifi one??

Thanks!
[LG Optimus Black] adxgrave:
This is for WiFi only. But it should also reduce power consumption if you're tethering using your 3g connection or using portable hotspot because the reduced power on WiFi's side of connection.
[LG Optimus Black] Huexxx:
If it worths, i 'll include it!
[LG Optimus Black] mdfaisal:
Hi,... If Iam using es file explorer and copy iwconfig to /system/xbin/

do I have to change file properties too ? and can I still reduce the wifii power using WiFi TXpower from market ?

and how can I know the default/current wifii power without using ADB ?

note:

- I have copy the iwconfig to /system/xbin/

without changing properties ( rw-rw-rw)

- Open Wifi TX Power:

There's 5 button at the top that has number: 4dBm, 11, 18, 25, and 32

and then: "Name of lan interface": Default is wlan0

and there's unchecked "use iwmulticall command"

- and it has information that:

iwconfig

sh: /system/xbin/iwconfig: Permission denied....

so what do I do then ? :confused:

Note agan : case closed :D

Im searching for chmod 777 at google

and I just know that chmod 777 is for: change the permissions of the file file to read, write, and execute for all.

so I change the properties to: rwx-rwx-rwx-

then voila... it works...

thanks man... now Im using 4dbm power wifii and testing battery life...
[LG Optimus Black] adxgrave:
That's file permissions problem. Open terminal, type:

# su

# chmod 777 /system/xbin/iwconfig

(don't include the #), that should fix it.

To get current setting just type in terminal:

# iwconfig wlan0

Or the first time you open the app it run the same line and will show the current wlan0 interface setting.

Edit: ok. Glad you found it. Google is our friend. :-)
[LG Optimus Black] mdfaisal:
thanks man... I really should learn the ADB :D

or unix command :rolleyes:
[LG Optimus Black] ObiDanKenobi:
Hi, why is using that Market app more efficient than setting the parameter in the system ?

I would (of course) want to have as less applications open just for keeping an eye on a certain aspect of the system. If there are reasons to keep that application, than I would understand, but I would like to know - if you care to share.

Thanks anyway for the tip. I have also noticed that the most of my battery goes when surfing the net, maybe you just found a cure for that.

Dan
[LG Optimus Black] adxgrave:
That's not what I mean. Infact, setting the parameter via script/manual is the preferred method. "Efficient" here mean that one can easily change the parameter using the app without the need to use terminal/adb shell. If you've found the correct power for your usage, ditch the app or just kill it. The correct term should be "convenience ".
[LG Optimus Black] ObiDanKenobi:
Great, then I will remove the app. Will get back with results about the drain of the battery.

Dan
[LG Optimus Black] dflt:
Market app has trigger for changing WiFi state, so its persisting settings. But I don't know if txpower changes to default after state of WiFi changes.

Could somebody check if txpower stays the same if you turn off and on WiFi?
[LG Optimus Black] ObiDanKenobi:
You are right, if the setting is done via adb shell and iwconfig command, after the WIFI is disabled, by the next enabling the setting is gone.

However the Wifi TxPower application keeps the setting (applies it on ever enabling of the WIFI).So I guess it is needed after all (if we cannot persist this setting somewhere).

Dan
[LG Optimus Black] adxgrave:
Remove the app only if you've a script to set it back after on off WiFi (not sure if can be done via script). Without it txpower will be set back to default value. But once you've set the power it's ok to remove it from running process.
[LG Optimus Black] mdfaisal:
TX power stays the same value (mine is 4dbm) if we turn off and on Wifi

Even stays the same value if we power off our OB and put back to on again...

I think it's a great app and I should have it ;)
[LG Optimus Black] rox75:
I'm pretty sure that the maximum allowed in Italy is 20Db, probably is the same in EU. I changed that parameter on my old optimus one to 10 DB and it worked fine.

Inviato dal mio LG-P970 usando Tapatalk
[LG Optimus Black] Huexxx:
I've already modified zeus to automatically set it on boot, and to automatically reset it when wifi on-off-sleep, etc...

You can use it on next zeus v4...

But, does it works??? Does it saves battery?
[LG Optimus Black] adxgrave:
Awesome man. I've run some test and the WiFi driver did honour the power setting. It should work. Just don't hard coded it, give user options to turn it down, up and default value.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] holgalee:
My Samsung Apps icon shows a "1" on the top right corner, which means that one of the apps has an update. It turns out to be the eBook app which I never could successfully install, and it turns out that I can't update it either!

Is there anyway I can remove the notification or delete that app from the list of downloads (in the Samsung app, click on the left menu button > my page > downloads). It has a history of all the Samsung apps that I'd previously downloaded, even the ones I've deleted. I tried clearing the cache of the app and force stopping but it didn't help. Even turning off New application notification doesn't help, neither does wiping my cache and dalvik.

I'm pretty sure there must be a folder somewhere where I can tinker with all these information. Does anyone know?
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] WoodpeckerS:
I am using Titanium Backup to freeze and delete all kind of apps.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] holgalee:
The ebooks app doesn't even show up in Titanium, so I can't freeze it.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] mahboob2t:
I do have the same "1"!!

tried to solve it but no luck :(
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] holgalee:
I had the same issue as you, and updating to the latest firmware solved the problem. I'm now on DXLC2, and SamsungApps maintains a history of what I have downloaded before, and also shows the ones currently installed. It no longer thinks that I've installed the Ebook app (which hanged halfway) and tells me there's an update.

If you're not rooted, the Kies way *may* work, as another poster mentioned from another thread. I don't know as I'm rooted so I can't verify that. But after you've connected your phone in Kies, on the top right of the screen, you should sign in, then go to MyDownloads. Do let us know if this works, as I'm curious too.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] dr.ketan:
I think Changing samsung account will be final option.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] sharan.mu:
UseTitanium Backup to freeze and delete all kind of apps.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] holgalee:
I tried that, but it didn't work. Annoying, I know. Someone mentioned wiping the SD card, which I haven't done yet, and no longer need to since upgrading of firmware helped.

BTW, I posted in the wrong thread (Which is why "I wrote I had the same issue as you"); there was someone else who started another thread about this issue after me, and I'd meant to reply to that one!
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] holgalee:
Thanks for the suggestion, but it doesn't work either. The issue here is a Samsung app that shows as having been downloaded, when it hasn't (e.g. stopping the installation before it finishes). So it doesn't even show in my app drawer. Anyway, I suppose the issue has been fixed, though I can only guess at how to clear the history of installed apps which still shows up.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] viper5:
I had same problem...change the samsung account helps me, hope it helps you to
[Galaxy S II Q&A, Help & Troubleshooting] Larkspeed:
This is driving me totally nuts I have been trying for ages to figure this out and can't get it.

Samsung Galaxy S2 Totaly stock unrooted Android 2.3.5

My home screen had 4 icons at the bottom for quick launch.

Phone contacts messaging applications

Contacts is redundant since you can access that through the phone icon as well and I never use text messages so I swapped 2 of them for other apps so now the home screen is like this:

Phone Gmail Whatspp Applications

This is fine right up until I restart the phone

When it restarts all 4 are there until is "scans usb storage" at which point the gmail icon disappears

I have to manualy change my application tray from list back to grid view and then edit to put the icon back and then put it back in list view

The icon will then stay until the next restart

As I say this is driving me up the wall

Things I have tried:

Full factory reset and reconfigure the phone

Reboot of phone with tray in both list and grid mode

Clear data from twLauncher and set everything back up again

With and without external SD card installed in phone

No matter what I do as soon as I reboot that icon is gone and it always appears to be gmail.

And please I don't want people telling me to install a different launcher or to root the phone. I don't want it rooted and I tried the other launchers and don't like them
[Galaxy S II Q&A, Help & Troubleshooting] RickysDog:
Dude - Sorry i dont have advice for you..but im sitting with something similiar..

Non-rooted phone..but when I reboot phone, the bottom icons (tray), get replaced by my last downloaded apps..for example, skype, flashlight and astro file manager...

After the phone has finished scanning they all return back to normal.

Im guessing this is some random bug, as I also tried clearing data from TWLAUNCHER and within time, after downloading some more apps, the same problem occurs.

Cheers

R
[LG Optimus 2x] adam876:
Hy,

How can i cook a stock gingerbread rom from v20Q o2x source?

Thanks :)
[Android Apps and Games] androidboss7:
This is not the game but does anyone know when it will be out on android?
[Android Apps and Games] mcdevtingz:
This month.
[Android Apps and Games] leventccc:
https://www.facebook.com/photo.php?....229085540475046.76637.215459165171017&type=1

Here is your answer
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] dknight178:
I have tried chromemarks but the bookmarks just appear in chromemarks, not on stock browser or dolphin. The compare features of chromemarks says that even the full version won't let me sync with my stock or dolphin hd browser. My chrome dashboard also has problems with bookmarks syncing (though it does work since chromemarks was able to sync) since in my account I don't have any option to sync bookmarks. Do you have any ideas on how to successfully sync from chrome (windows 7) to stock browser or dolphin? thanks
[Galaxy Ace S5830 General] satti8893:
Hi guys is this miui greater than cyanogen mod?
[Galaxy Ace S5830 General] consegregate:
The UI is completely redesigned that's all.
[Galaxy Ace S5830 General] Spex:
it has awesome look and performance i think

+it was for only some phones so we wanted it more :)
[Galaxy Ace S5830 General] evil_penguin:
MIUI is based on CM....

I prefer MIUI .

It has cool features !

Completely redesigned :)

You could have search for this in GOOGLE.COM !:p
[Galaxy Ace S5830 General] chekuhakim:
once u try miui, u will feel completely different than other roms
[Galaxy Ace S5830 General] satti8893:
Thanks for ur rpy :D
[Galaxy Ace S5830 General] jusada:
Miui v4 isn't the big difference miui was. But that's a good thing in my opinion. And just to point out miui4 is not built on cyanogen. Its been ported using it, but miui v4 official is built using stock.

Follow me at jusada.tumblr.com or on twitter @JusadaTheLost
[Galaxy Ace S5830 General] CallMeVentus:
Wow

Herpderp Defy.
[Android Q&A, Help & Troubleshooting] Munggel:
Hi everyone,

I have a very strange problem appearing here: I'm coming from DarkyROM2 XXKI3 (2.3.5) with Supercore 1.8.5 on my Galaxy SII (i9100). After upgrading to DarkyROM2 HD (KL1 based 2.3.6) on Supercore 2.3 I was experiencing strange display quality. It looked a lot darker and with too much contrast, which it shouldn't. By coincidence I tried switching back to supercore 1.8.5 and the problem disappeared. But now I'm stuck to this old Kernel...tried with every Kernel newer than 1.8.5 (until 2.3.3_louder), but they all look crappy :-(. With auto-brightness on there's no way to work with it. In dimmed status you cannot read anything. Without auto-brightness (no option for me!) you can at least work with it, but it looks bad (too high contrast).

What can be wrong here? I don't know what to do. At Darky's Forum they couldn't help me, saying it must be a supercore problem.

Anybody knows how to handle with that?

Thanks a lot for your help!
[Android Q&A, Help & Troubleshooting] sunsetloverboy:
I m newbie how i can root my desire hd
[Android Q&A, Help & Troubleshooting] stanleyyyy:
look here

http://xdaforums.com/showthread.php?t=1377119
[Samsung Galaxy Fit GT 5670] roambekar:
will switching back to 2.3.6 official rom ddkt1 from cyanogenmod via cwm will brick my phone? or cause ne harm to my fit? is it ok to flash ddkt1 ?
[Samsung Galaxy Fit GT 5670] Aspire:
yeah you can go back to stock without fear.
[Samsung Galaxy Fit GT 5670] varun sutar:
how? plz tell ,i want to know! plz tell!!!
[Samsung Galaxy Fit GT 5670] swat4samp:
Just flash stock rom through odin..
[Galaxy S II General] The-Hulk:
Rooting your Samsung Galaxy S2 i9100

This guide is thanks to capaxdoli, I have just modified it slightly to make it easier to read

If you use this guide to root your phone please go and thank him here - http://xdaforums.com/showthread.php?t=1126522

Also please give this page a read it is the basics of rooting and should be considered the starting point for all learning to root - http://xdaforums.com/showthread.php?t=1125282

Also another thanks should go to Chainfire - For his great work on kernels http://xdaforums.com/showthread.php?t=1103399

1. Make sure your phone has kies 2 and have it install all the drivers.

2. Connected phone for the first time to computer and kies 2 and it recognized it fine.

3. Make sure Kies 2 is also fully updated.

4. The details of my phone are as follows: (please check what yours are)

Samsung Galaxy S2 i9100 (only use on i9100)

Fireware – 2.3.4 (it will work on all 2.3.x Firmware)

Kernel = XXKI4 (the important bit is the Ki4)

You can find all this info out in Settings – about phone

5. A prayer to My Lord for safe rooting

6. Go to this page and read all, then select the Kernel that is a match to yours – here – http://xdaforums.com/showthread.php?t=1103399

7. Since I have Ki4, i had chosen to download this file [CF-Root-SGS2_XW_ODD_Ki4-v4.0-CWM4.zip]

8. Downloaded odin3-v1.85.zip here - http://www.mediafire.com/?wezzl287wb9v9hu

Extract and open the file (no installation...gasp!)

Open and run Odin ready to root your phone

Now select PDA and find the kernel that you downloaded and select

9. You might need to extract the kernel to select it in the PDA

10. Put your phone in download mode (press volume down + ok key + power on), a warning about custom OS flashes, press volume up key to continue.

11. You have pressed volume up key and the phone says that it has entered ODIN mode. it also says the following:

a. product name: GT-i9100

b. Custom Binary Download : No

c. current binary : Samsung Official

d. it also shows the android logo (the robot - big size) and says downloading...Do not turn off target !!

12. After this connected the phone to the computer (remember it is in download mode) and the drivers were installed again.

13. Go to Odin and you should see that under ID.com, there is a yellow background box and it says 0:[COM13]. in the message box (lower left corner) it says <ID:0/013> Added!!

14. Make sure the re-partition box is not checked in odin.

15. Clicked the start button...

16. The phone should install your new kernel and then re-boot it should show a yellow exclamation mark when it reboots.

17. That’s it your phone is now rooted –

Please visit these pages to –

See what you can now do with your rooted phone – http://android.stackexchange.com/qu...my-phone-now-what-what-do-i-gain-from-rooting

How to remove the yellow exclamation mark on when your phone starts - http://xdaforums.com/showthread.php?t=1103399

This is on the first page only the 2nd post down

For anyone who is intrested if you want to install Ice Cream Sandwhich (ICS) then vist this page here.
[Galaxy S II General] rutgerhoorn:
Most of your links are not working.
[Galaxy S II General] The-Hulk:
Links fixed
[Galaxy S II General] Nyssa1104:
How many more threads on this topic?

If people to time to search and read we would not need yet another thread on the subject...

Still thanks on your time :)
[Galaxy S II General] York666:
nice and thanks =)
[Galaxy S II General] The-Hulk:
Not a problem - dont forget to thank the revelent people
[Galaxy S II General] alexwbaule:
This Work in 2.3.5 Too, i tested.
[Galaxy S II General] abbadipod:
Does it work on 2.3.6?
[Galaxy S II General] MistahBungle:
Yes. 10 cha
[Galaxy S II General] The-Hulk:
Yes it will work on 2.3.6
[Galaxy S II General] Mittaa:
Yes there already are A LOT of threads about rooting ... AND there are much easier way to get root than the one you explain!

This is especially handy if you'r new to this and just want root access to your stock SGSII:

[ROOT]How to ROOT Galaxy S2! [1-Click Root][Video Tutorial][No Odin required]
[Galaxy S II General] chinadude:
Seems pretty complicated with all those steps and there are easier methods i think.. but thanks anyway =]
[Galaxy S II General] y2kkingboy:
I used the Easy rooting toolkit (v4.0) made by DooMLoRD. It works and as it is named really easy.
[Galaxy S II General] chanrocky:
- install driver on PC

- download odin

- download rooted kernel

- open odin and select PDA and find the kernel

- put your phone in download mode

- start
[Galaxy S II General] vszulc:
But some of us don't like ODIN, or would prefer to do it in another way, or want to keep our existing ROM.

Like me for example... I'm quite happy with the regular SGS2 ROM, doubt that I have anything to gain with a custom ROM, and just want to be rooted...
[Galaxy S II General] 3bodi:
very sumple way like it +1
[Galaxy S II General] sam razzy:
Where can i find the Samsung drivers for Galaxy S II ? In my windows 7 its doesn't recognize usb drivers.... It shows CDC SERIAL MISSING AND ALL...
[Galaxy S II General] aceofclubs:
Then use jig to get rid of triangle and reset flash counter to 0.

Might seem like a few steps but after you have done it once the next times will only take a minute or two.

Don't like Odin or don't want to use it? Well I bet at some time you do use it. Odin doesn't use an exploit, it's a flashing tool so you can be more confident that the flashed kernel will work to root your phone.

Once you have root don't forget to do a nandroid backup using CWM. Restoring a backup is the easiest way to downgrade from things like ICS.

Happy rooting and flashing....
[Galaxy S II General] slamming_sammy1:
does this also install CWM ? thanks.
[Galaxy S II General] The-Hulk:
Yes it comes with CWM and super user, providing you use one of chainfire's kernels.
[Galaxy S II General] slamming_sammy1:
well, I was referring to the instruction in the very first post. it says rooted but didn't mention anything about CWM; but it says it's installing a kernel so thank you:

16. The phone should install your new kernel and then re-boot it should show a yellow exclamation mark when it reboots.

17. That’s it your phone is now rooted –
[Galaxy S II General] awill2ill:
thanks ^___^
[Galaxy S II General] Skatespeare:
Nice guide, mate!
[Galaxy S II General] suvashish_das:
is this working on 2.3.3 ??
[Galaxy S II General] The-Hulk:
Yes it will work on 2.3.3
[Galaxy S II General] astratb:
Will it work on 4.0.3?

Thanks!
[Galaxy S II General] The-Hulk:
Yes, just make sure you choose the right Kernel
[Galaxy S II General] theunderling:
Can I ask what the difference is between this guide and the "one click" rooting method by doomlord?

Posted using s2 by xda premium
[Galaxy S II General] The-Hulk:
I am not 100% as i have never used that method, but it looks like the methon is diffrent and chainfire uses kernels that are pure stock just adding what is needed. Sorry i cant be more help, but the end result will be the same.