[HACK][3G][GSM]: Faster cellular data speed

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bahathir

Senior Member
Feb 14, 2010
301
161
55
+1

More data, less repetitive TCP headers. Same time frame, same TX/RX power, we get more data. :)

Sent from my XT910 using xda app-developers app
 

tigerstigers

Member
Sep 28, 2009
49
2
Didnt do any change for me.

Appreciate the find & thanks for sharing :p

Sent from my XT910 using xda app-developers app
 

MiGeCh

Member
Apr 17, 2011
30
4
Kiev
Seemed to slow mine. i was getting an average 2200 kbp/s and peaks of 3300 after the mod - 1300
Rolled back.
UTEL operator in Ukraine.
 

jerometan

Member
Jan 3, 2006
8
0
Singapore
jt.321.cn
Wow.

Wow dude, thanks a lot man.
My speed went up by almost 8times! Attached the before and after screenshots.
 

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SAJdroid

Senior Member
Apr 23, 2012
280
109
Tried it but no changes:) Nice to hear it works with other countries... keep posting such good finds :).. Cheers !
 

bahathir

Senior Member
Feb 14, 2010
301
161
55
Yes, as I metioned earlier, the hack only works if the telco's backend supports the VJ compression. Sometime we may get better results when we tried the hack at the different places or cities, where the cell towers may support the feature. I also had the experience when moving from places to other places. But if you get worse result, revert it back to the original setting/option.
 
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SAJdroid

Senior Member
Apr 23, 2012
280
109
Yes, as I metioned earlier, the hack only works if the telco's backend supports the VJ compression. Sometime we may get better results when we tried the hack at the different places or cities, where the cell towers may support the feature. I also had the experience when moving from places to other places. But if you get worse result, revert it back to the original setting/option.

Yes you are right.. Anyways nice find !! ... its helping many of them :good:
 

bahathir

Senior Member
Feb 14, 2010
301
161
55
Most probably you are looking at /system/etc/ppp directory. You need to go into /system/etc/ppp/peers directory to find the pppd-ril.options file.

Good Luck. :)
 

bahathir

Senior Member
Feb 14, 2010
301
161
55
Use connectbot or similar terminal app.

Code:
su
cd /system/etc/ppp/peers
ls -l

Good luck.

Sent from my HTC Explorer A310e using xda app-developers app
 
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bahathir

Senior Member
Feb 14, 2010
301
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could you please provide the link to install the software in my samsung s2 ?

This is a configuration hack, not a software. As I mentioned at the first post, this hack is for advanced user and developer who knows what to do. I only have RAZR XT910, and I don't have any access to GSII. I suggest you to ask GSII developers to read this thread, and ask them to make it available to GSII users.

Thank you. :)


Th
 

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  • 55
    Disclaimer:
    1) This is for developers and advanced users who know what to do.
    2) Do it at your own risk. I am not responsible to any problem due to this modification/hacking.
    3) I am not showing how to change/edit the file.


    3 days ago, I did a change in /system/etc/ppp/peers/pppd-ril.options.

    This is the orignal content of the file.
    Code:
    nodetach
    debug
    noauth
    defaultroute
    usepeerdns
    connect-delay 1000
    # Don't remove the user/password lines.  They are required to make PPPD authenticate itself with
    # the BP when doing Simple IP (SIP).  The BP will replace the user/password strings with the correct
    # values when authenticating to the network-side PPP peer.
    user NotUsed@nobody.com
    password NotUsed
    crtscts
    lcp-echo-failure 0
    lcp-echo-interval 0
    ipcp-max-configure 30
    ipcp-max-failure 30
    ipcp-max-terminate 10
    novj
    linkname ril

    Just by commenting or remove line 18,
    Code:
    # novj

    we may able to get better 3G network speed. The change may enable the Van Jacobson style TCP/IP header compression. Your cellular network may or may not support this feature. My 3G cellular network (Celcom Malaysia, HSDPA 3.6Mbps) seem to be supporting this feature.

    Before the change, I got (down/up) 3.4/0.5 Mbps, but, after the change, the result is quite impressive as we can see in the screenshot. Sometime, I got about 2x of download speed when download podcasts MP3s, from 400 kBps to upto 800 kBps.


    Mbps : Mega bit per second
    kBps : kilo BYTE per second

    Anyone who tried this hack/mod either for 3G or 4G, please report your before and after results. :)
    Remember to reboot after changes :)

    Thank you

    Reference:
    $ man pppd

    Screenshot_2012-07-28-03-33-46.jpg



    Update: 2013-06-04

    If your device does not have the file, you can try the hack which I posted in post number 100.

    http://xdaforums.com/showpost.php?p=42185612&postcount=100

    As ussual, please report your findings. Remember to put your device name, U/D speed before and after the hack. :)
    35
    Hi, everyone.

    My RAZR XT910's panel cracked several months ago, and I don;t have platform to test further.

    Now, for temporary, I am using Samsung Galaxy S (GT-I9000, 2.3.6 GB Stock, rooted using Framaroot). Just now, I add an options file into /system/etc/ppp directory. I attached file in this post. Feel free to try. :)

    1) Attention, if your device NOT has /system/etc/ppp/options, you can put the attaxhed file into the directory /system/etc/ppp


    2) If you have the options file, Back it up first.
    3) Remove any novj nobsd .... options int the file.
    4) Append .or insert the contents of the attached file into the existing options file.


    Again, I tried this hack on Samsung Galaxy S. and I achived the similar effect :)

    Good Luck, and don't cry over here if you failed. :) You should know how to backup and restore from backup at the first place.


    I also like to thanks to everyone who tried and gave feedbacks.

    Please share this hack with others, especiallay the ROM developers, and remember to link back to this thread.

    Thank you.

    Updates:
    I attached screen capture of the Speed Test's results from Samsung Galaxy S (GT-I9000).
    We can see the data link speed improvements.
    There were mixed results, due to several factors.
    474085999.png
    1
    Didn't work for me.
    Guess it wont work if the operator is limiting the speed.
    Edit:
    Changed speed test server and it does work.
    Speed got x2 better than the fastest I ever got.
    1
    Doesn't work to me either.

    Cheers
    1
    [QUOTthe ahathir;42185612]Hi, everyone.

    My RAZR XT910's panel cracked several months ago, and I don;t have platform to test further.

    Now, for temporary, I am using Samsung Galaxy S (GT-I9000, 2.3.6 GB Stock, rooted using Framaroot). Just now, I add an options file into /system/etc/ppp directory. I attached file in this post. Feel free to try. :)

    1) Attention, if your device NOT has /system/etc/ppp/options, you can put the attaxhed file into the directory /system/etc/ppp


    2) If you have the options file, Back it up first.
    3) Remove any novj nobsd .... options int the file.
    4) Append .or insert the contents of the attached file into the existing options file.


    Again, I tried this hack on Samsung Galaxy S. and I achived the similar effect :)

    Good Luck, and don't cry over here if you failed. :) You should know how to backup and restore from backup at the first place.


    I also like to thanks to everyone who tried and gave feedbacks.

    Please share this hack with others, especiallay the ROM developers, and remember to link back to this thread.

    Thank you.

    Updates:
    I attached screen capture of the Speed Test's results from Samsung Galaxy S (GT-I9000).
    We can see the data link speed improvements.
    There were mixed results, due to several factors.
    474085999.png
    [/QUOTE]

    Does the phone need to restarted after adding this file to the folder?