[Galaxy S II Themes and Apps] CamoGeko:
Modems guide

MODEM GUIDE

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FILE NAMES:

The name of the Modem usually specifies the region its intended for, however... this doesn't mean it will work best for you. Classification of the Modem regions is as follows:

CE---> Belgium, Luxembourg, Netherlands

DC---> Thailand

DD---> India

DX---> Indonesia, Malaysia, Philippines, Singapore, Vietnam

DZ---> Malaysia, Singapore

JA---> South Africa

JC---> Algeria, Morocco, Nigeria, South Africa, Tunisia

JP---> Arabic, Algeria, Egypt, Iran, Iraq, Kuwait, Morocco, Nigeria, Oman, Pakistan, Saudi Arabia, Syria

JV---> Tunisia, Turkey

UG---> North America

UH---> Latin America, The Caribbean

XE---> Bulgaria, Estonia, Kazakhstan, Latvia, Lithuania, Russia, Ukraine

XX---> Austria, Belgium, France, Germany, Hungary, United Kingdom

XW---> Austria, Belgium, France, Germany, Hungary, Italy, Nordic, Spain, United Kingdom

ZC---> China, Hong Kong

ZH---> Hong Kong

ZS---> China, Hong Kong

ZT---> Taiwan

Which Modem comes with which various Stock firmwares can be found out here:

http://devsrom4android.blogspot.co.uk/2011/10/samsung-galaxy-s2-firmware-updates-via.html

RECOMMENDED MODEMS TO TRY:

KH3

XXKI4

NELP2

NELP3

NELP4

XXLPX

DXLP9

DXLPA

BVLP7 (tested by many, deemed to be a fantastic modem)

DEFINITION:

*Modem/Radio/Baseband is all the same thing and can be seen by going to Settings - About Phone - Baseband. It's basically a driver which receives and sends Mobile Network signals as well as handling switching between GPRS, 3G, HSDPA etc....... (but not WiFi connection, that and switchover between Mobile Network and WiFi is handled by the kernel). Reasoning as to why Modem has no influence on WiFi can be found in this post by Entropy - http://xdaforums.com/showpost.php?p=28052552&postcount=6556

USAGE:

*There is no one "Best" modem for everybody. Unfortunately you actually have to try to find the modem which works perfectly for you on performance, strength and battery drain levels. The good thing is that from my lengthy 8 month experience with Galaxy S2, I'm happy to report that there are a few modems that seem to perform well geographically for most users. These modems are KE7, KH3, KI3, KI4, KL1, LPS, NEKF2, NELP2 & NELP3.

COMPATIBILITY:

*Modems do not need to be matched up with firmware like it's done with ROMs and Kernels. For example, a KI4 modem can be used with a KL1 ROM and the other way round. The only thing you need to pay attention to is what model your SGS2 is. 9100 and 9100 modems are compatible across both models. However, 9100 model and US variants are not cross compatible since the devices are designed to work on different bands.

INSTALLATION:

*I will add a flashing guide to post number 5 soon, hence why it says "Work in progress.....". For the moment I suggest asking Mr. Google to do a search for you. Bottom line is, for CWM packaged modems you need to be rooted and have a working CWM recovery (flash the CWM modem zip within recovery). For .TAR packages, all you need to do is flash it while your device is in Download Mode and connected to ODIN. The .TAR file should be selected in the PHONE field. Don't touch anything else.

TESTING:

*Usually just flashing and then using the same modem for 3-5 days should tell you how well it performs in your are and with you Mobile Network operator. Please remember that it takes around 2-3 days for a Modem to "settle" and achieve optimum performance, so don't judge how good a Modem is straight after flashing. That's where a lot of people fail when asserting battery drain.

Signal strength and quality can be tested using this app:

Network Signal Info

Download and upload speeds on your network with a current Modem can be tested using this app:

Speedtest.net

RESULTS:

Testing done by 3ayachi (Tunisia)

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Work in progress.....