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Thursday, July 25, 2013

ဖုန္း 3G အင္တာနက္ Speed Hack နည္း

အြန္လိုင္း မွာ ေမြ  ရင္း ေတြ႕ တာ ပါ ။ လိုင္း ကလဲ လံုး၀ မေကာင္း ေတာ႔ ဘာ မွ လဲ တင္ေပး လို႔ မရ လို႔ ရတုန္း ေလး မန္ဘာ ေတြ ကို အလုပ္ေပး လိုက္ အံုး မယ္ ။
ကၽႊန္ေတာ္ လဲ ေတြ႕ ၿပီး ကတည္း က သင္တန္း သင္ေန ရတာ နဲ႔ မအား လို႕ မစမ္း ရ ေသး ဘူး ။ မန္ဘာ ေတြ ၀ိုင္း စမ္း ၾကည္႕ ၾက ေပါ႔ ။ရရင္ ၿပန္ရွယ္ ေပး ေပါ႔ ....

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.

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.
password NotUsed
lcp-echo-failure 0
lcp-echo-interval 0
ipcp-max-configure 30
ipcp-max-failure 30
ipcp-max-terminate 10
linkname ril

Just by commenting or remove line 18,

# 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.

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.

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.

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Mobile House
ဖုန္း ၿပဳၿပင္ ေရး ႏွင္႔ အေရာင္းဆိုင္

ဖုန္းၿပဳၿပင္ ေရးနည္းပညာ သင္တန္း

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