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

27th July 2012, 10:32 PM |#1  
bahathir's Avatar
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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

Click image for larger version

Name:	Screenshot_2012-07-28-03-33-46.jpg
Views:	17210
Size:	36.7 KB
ID:	1226025



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://forum.xda-developers.com/show...&postcount=100

As ussual, please report your findings. Remember to put your device name, U/D speed before and after the hack.
Last edited by bahathir; 4th June 2013 at 07:03 AM. Reason: New hack for the device without the mentioned file.
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27th July 2012, 10:39 PM |#2  
Orical's Avatar
Senior Member
Flag Boston
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Quote:
Originally Posted by bahathir

Disclaimer:
1) This is for developers and advanced users who know what to do.
2) Do is 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 (donw/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.


Thank you

Reference:
$ man pppd

Attachment 1226025

I'll give this a go when I get home. I will post back after testing.

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27th July 2012, 11:35 PM |#3  
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Thanks for the files!
27th July 2012, 11:39 PM |#4  
hacker812c's Avatar
Senior Member
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congratulations for posting...
excelent informations and files...
28th July 2012, 12:11 AM |#5  
Senior Member
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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.
Last edited by vkass; 28th July 2012 at 12:14 AM.
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28th July 2012, 02:20 AM |#6  
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Doesn't work to me either.

Cheers
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28th July 2012, 03:01 AM |#7  
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Is this GSM only? I thought CDMA was limited to 2.8mbs, and LTE, well its just ridiculous the speeds you can get from it allready, I got 34mbs as a top, and average 24 ish. Up and down are so close sometimes too.
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28th July 2012, 03:22 AM |#8  
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Worked for me..
Doubled my 3G speed..
Network provider is Virgin Australia.
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28th July 2012, 03:36 AM |#9  
garywojdan81's Avatar
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It didn't work for me either. It seems like this must be for GSM only.

Sent from my Droid Razr using Tapatalk 2
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28th July 2012, 07:20 AM |#10  
gjnicholson's Avatar
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Thanks, works on Telkomsel here in Jakarta. Download speed doubled :thumbup:

Sent from my XT910 using xda premium
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