[Q] Problems with xxLxx modems on i9100

[bcbickers]

My SGSII i9100 came with the KI3 modem, which worked flaswlessly (6-8 mbps down). An upgrade to KL1 saw identical performance. However, the newer xxLxx modems that are included with most of the ICS roms are really slow. Not only are speeds dismal (50-150 kbps on a good day), the phone is basically unusable. Play Store takes 60 seconds or so to come up, if it comes up at all, browsing is beyond painful, news apps take forever to load, etc, etc. If I go wireless or flash back to KL1, speeds are back to fast and the phone is snappy. I have tried probably 20 different APN configs to no avail.

Any idea why the newer modems don't work on my phone??? Any and all help is GREATLY appreciated!

 

[ZACQ8]

if you are really concerned about your data downloading speed, flash KE7, the best I ever used...

 

[bcbickers]

I am using KL1 and all is well now. Must be a Houston area issue with the LPx modems. Thanks for the reply.

 

[MistahBungle]

Modems are very much 'black boxes' (to use Entropy's words), only Samsung knows exactly why different modems work well or not well on different networks in different locations.

It's impossible to say X modem will work well for all people on a given rom in every possible location. They don't work that way. Like you, I also got pretty crappy reception/data speeds with the newer L modems, so I've stuck with KJ1 which I've been using for 5 mths. Being on an ICS rom has nothing to do with anything.

The usual procedure to follow if you do ever have signal/connectivity/data issues is to simply keep trying different modems (being CWM flashable this is simple/easy to do) until you find one that works well with your carrier/location/etc.