[HACK][3G][GSM]: Faster cellular data speed
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.
# 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.
Just by commenting or remove line 18,
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
, please report your before and after results.
Remember to reboot after changes
$ man pppd
Current: Motorola RAZR XT910, PHAsia (SEAOP), rooted stock.
Tablet: Nexus 7 (16GB) Vanilla stock,.
Was: Google Nexus One, boot unlocked + rooted, Asus Transformer TF101